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CAS-13_GALPIN CROSSINGS TWINHOMESItem Descrlpdoq Non -Scannable Hem C -Fader Number Galon CmssWWz�s3Twinho � PUC sclUIMAk Folder Name Bh SV tB ap BM lnk etln Job Number Box Number C 1'w�NNow��s p2st"m. 31 zn I (D0 ,r, (froSsrn J EPIC Development XVI, LLC January 22, 2008 Tom Furlong, Mayor Todd Gerhardt, City Manager, and City Council — Vicki Ernst, Bryan Litsey and Bethany Tjornhom City of Chanhassen 7700 Market Boulevard P.O. Box 147 Chanhassen, MN 55317 RE: City's Proposed Comprehensive Plan Update and PUD for Galpin Crossing NW Corner of State Highway 5 and Galpin Boulevard (Parcel No. 14 on City's Map) Dear Mayor, Manager and City Council: We were represented at the Planning Commission meeting of January 15 at which the Commission recommended that the Council approved the 2030 Comprehensive Plan. Our site is designated for Office on the 2030 Comprehensive Plan and our request is for Mixed Use. Our site plan includes office, bank/financial and retail. By way of information, the City approved a Concept Plan on December 12, 2005 for office, bank/financial subject to 33 conditions. This letter addresses two questions raised about our site by Commissioners McDonald and Rapke. However, we could not respond because the Commission limited comments to the staff and Commission members only. 1.) Critical mass — Commissioners Rapke: He appeared to support retail at our site by commenting on a critical mass for retail at Galpin and asking is that so bad. 2.) Locking in — Commissioner MacDonald: He followed up with questioning it being locked in to office without retail. Staffs response was essentially they had some concern about retail, didn't want retail up and down Highway 5 and an application to change the zoning can be made which would be more thoughtful consideration than the comprehensive plan. 434 Lake Street, Suite 200 Excelsior, MN 55331 Page 1 Epic Development XVI L.L.C. asks the Council to please: • Allow us to address the City Council on these points • Review our reports/submittals dated January 4, 2008, November 30, 2007 and September 30, 2007. • Consider the City's Retail Study dated June 30, 2006 designating both sides of the north side of Highway 5 at Galpin Boulevard "Shopping Areas" and makes specific comments. On page 6 it states: • TH-5 —two miles west of Downtown Chanhassen presently has only a Kwik Trip gas/convenience store and Pharmacy in the northeast quadrant of the intersection. The northwest quadrant has 15 acres that is undeveloped. This area may attract future commercial development "(Emphasis added.) And on Page 52 it states: • "Retail developmental at the two retail locations west of downtown along TH-5 are likely to fill in with either convenience or destination retail and services that cannot be accommodated in Downtown Chanhassen. The development opportunites in these two areas are limited by available land for retail or service uses." (Emphasis added) In part, this addresses land use and critical mass raised by the Commissioners. The retail portion of our site in the island is the only remaining developable site on the north side of Highway 5 between downtown and west of Highway 41. All other property is preserved open space, publicly owned by the City or Right of Way. (Please see Attachment 1 of our November 30,2007 report.) Therefore the City won't have any further retail on the north side of the highway between the highway and frontage road. Access — traffic is not an issue. The site has access from Mn/DOT. Access and traffic and channelization are included in our approved concept plan. We welcome the opportunity to further explain the above points and other points relative to the site and your consideration of the City's Comprehensive Plan. Sincerely, Gary A. Collyard, Member GAC/wt Encl.: 434 Lake Street, Suite 200 Excelsior, MN 55331 Page 2 MEMORANDUM MYl OF TO: Robert Generous, Senior Planner CWHESEN 7700 Market Boulevard FROM: Todd Hoffman, Park and Recreation Director PO Box 147 Chanhassen, MN 55317 DATE: February 28, 2005 Administration COMPREHENSIVE PARK PLAN Phone: 952.227.1100 SUBJ: Request for Rezoning and Preliminary Plat with Variances to Fax: 952.227.1110 Create 13 Lots and One Outlot; Epic Development XVI, LLC Building Inspections This site is wholly within the neighborhood park service area of Sugarbush Park. Phone: 952.227.1180 This park contains a children's playground, open space and a walking trail. Fax: 952.227.1190 I have reviewed the application from Epic Development, a proposed subdivision Fax: 952.227.1110 with variances located north of West 78`' Street and west of Galpin Boulevard. Engineering Phone: 952.227.1160 The following conditions regarding parks and trails apply to the application: Fax: 952 227.1170 $60,000). Planning 8 COMPREHENSIVE PARK PLAN Finance All twelve lots will have convenient access to a section of the city's Phone: 952.227.1140 comprehensive trail plan. This ten -foot wide city trail is located parallel to Fax 952 227.1110 This site is wholly within the neighborhood park service area of Sugarbush Park. Public Works This park contains a children's playground, open space and a walking trail. Park & Recreation Phone: 952.227.1120 Future homeowners would access the ark via Gal to Boulevard. No additional FP P Fax: 952.227.1110 parkland dedication is required in this area of the City; therefore, park dedication Recreation Center dollars will be required in lieu of land dedication (12 lots x $5,000 per lot = 2310 Coulter Boulevard $60,000). Phone: 952.227.1400 1. Sugarbush Park Map Fax. 952227.1404 2. Park Service Area Map P COMPREHENSIVE TRAIL PLAN Planning 8 Natural Resources All twelve lots will have convenient access to a section of the city's Phone: 952.227.1130 Fax: 952.227.1110 comprehensive trail plan. This ten -foot wide city trail is located parallel to West 78d' Street on the southern edge of the subject property. The trail should be Public Works protected and kept open and accessible to the public throughout the project. No 1Park Road Phone: X2.227.1300 r�: in recommended as a condition of this additional trail construction is beg Fax: 952.227.1310 development. Se:952.2Center Phone: 952.227.1125 11 ATTACHMENTS Fax: 952.227.1110 1. Sugarbush Park Map Web site 2. Park Service Area Map P c: Park and Recreation Commission G:\park\TH\Epic Subdivision IIOANNIM The City of Chanhassen • A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play. p A I ---- Garin Lake Road _ fl ' Sugarbush Park City of Chanhassen, Minnesota mu ®e fioiain{ nu HaeHler GmuP n . .a v.dry o..�.. soy°oe•.,o� amr�.eda Hwy 5 Arboretum Boulevard N W+E S Subject Site ANN �illlli z 1' u�W � °tee Park 9s,\ ro i Park Service Area Sugar Bush Park Boulevard April 4, 2006 G:/ENG/Jo%en/Parks/SugarBush O6- 13 City Council Meeting — May 22, 2006 Kevin Clark: I just want to thank you mayor and council, and it really has truly been a joint effort throughout this whole process. Both at Bluff Creek and here at Creekside and I guess mostly we thank you for your patience with us. It seems like we've been ... going to school on this and I think we've benefited and we appreciate your input, your time spent with us and you know your investment so we're looking forward to moving forward. Mayor Furlong: Thank you and we look forward to your successful developments for our city. Very good, thank you. _GALPIN CROSSING TWINHOMES, LOCATED NORTH OF WEST 78' STREET AND WEST OF GALPIN BOULEVARD, EPIC DEVELOPMENT XVI, LLC, Rj, PRELINHNARY PLAT APPROVAL CREATING 13 LOTS AND ONE OUTLOT WITH A VARIANCE FOR A PRIVATE STREET AND MORE THAN 4 HOMES _ACCESSING A PRIVATE STREET: AND A CONDITIONAL USE PERMIT FOR DEVELOPMENT WITHIN THE BLUFF CREEK OVERLAY DISTRICT. Kate Aanenson: Thank you. This item appeared before the Planning Commission on May 2°d. They recommended, they took their motions separately. Voted 3 to 3 to, the motion was to approve the rezoning. It was 3 to 3 so basically in effect that died. They also voted a negative 1 to 5 for the approval of the preliminary plat with the variances, and then also 1 to 5 against the conditional use, so therefore they recommended denial and the findings of fact in your packet reflect that motion for denial. What I'd like to do is take some time and go in your staff report is the background, is take a few minutes and walk through the background of how this project came about. And as you stated mayor, the subject site is located on West 78's. If you go in the background and on page 3 of the staff report it talks about how this property got severed and that was the creation of West 78d' Street, severed the property into two parcels, and at that time sewer and water was provided. Shortly thereafter in 2003, can you zoom out just a bit? Thank you. The owner of the property, Mr. Pryzmus appeared before the, a conditional, or concept, excuse me, concept approval for a plan and that was in 2003. That included the recreational fun center and some town houses. Multi family on the north side and that included approximately 18. There was a letter that was put out by the city at that time talking about kind of the concept had not standing, so that sat for a while and then in December of 2005 a concept was brought forward to the City Council. Maybe you can zoom in a little bit on that. So we're looking at again the entire PUD which included at that time office industrial or commercial, and then residential on the north side. The council at that time gave conceptual approval but then based on specific recommendations specifically regarding that retail study we completed, which to date we haven't gotten the final draft yet on that either so we haven't given any standing on the retail study and at a minimum, only twin homes be considered to be consistent on that north side. So that was the marching orders that was given again when that appeared on the December 12t°, 2005 conceptual approval. So with that to date the applicant has come forward with a twin home plan. Just I'll make another point. On this plan here there was shown 10. Then when it came in it went to 12, and they came in requesting a PUD. The purpose of the PUD allows for the flexibility in the ordinance. It also is a tool that we used before this property is in the overlay district. If you look at the original plan that I showed you that had the 16 units on, all those units 27 City Council Meeting — May 22, 2006 were backed up against the creek itself and since we got the overlay district, we had that buffer... and that's what's shown in green. The overlay district. Again in looking at the PUD, the staff evaluates how that tool is used. Specifically in this case we're looking at the green space and the applicant to get that number of units, 12 we would have to do a private street. I just wanted to show as an example, this blue line here would be, which is the private street. If you went all the way up to the front of the houses, that's the 50 foot setback so if you used a public street, you'd actually would be back into the homes up in, approximately where the front door is to get, that would be a 60 foot street. So if you used a public street, or certainly eliminate, it pinches in. You'd be up against the setback line of the Bluff Creek. So in evaluating this, where we are to date, the Planning Commission, if you looked at, as the staff went through these exercises, looking at the different zoning applications and balancing the PUD. What benefits was the city getting out of doing the PUD. Certainly there's the preservation of green space. When we looked at this overall PUD, when you go back to the original concept, one of the things that we've always looked at is, and we've used the same application on the other side of the street where we've preserved all this green space on the north side of West 78th and we've got the impervious surface. So you had more hard cover. On the south side. This is one of the applications we originally told the developer ... and that preserves all that space on that, looking across the view shed of the wetland. They chose to go forward with this application itself, so in the staff report in the executive summary, what I'd like to do is just kind of walk through the zoning options based on the fact that the Planning Commission did recommend denial of the application. And obviously the first one is that you deny the application and that would be based on the findings of fact and I know one of the questions that came up, because we spent 2 years just talking about the project and most recently talking about architectural renderings. At this point the applicant doesn't know who the final builder is. To our knowledge they don't know so we don't have, we did put design standards in there but we're not tying it to a specific project but to just sometimes unusual. And to be clear, and as city code, when you do a single family it doesn't require architectural guidelines and also in a traditional twin homes, but because this is a PUD... request architectural standards and the staff did develop some but we don't have a specific product or project to look at these to tie it to. So that would be an issue, and then going back to, if you wanted to look at this in a holistic sense, it'd be another issue. It talks about whether that be considered green space for the other piece, or how that would be approved. Then the other option that we put in there, again I'm on the second page of the executive summary. It'd be approve subject to the staff report eliminating... so you actually include architectural renderings but approve it the way it is. And then on C, would be to approve it for just the 10 units. Not the 12, which would be eliminating 2 of the, spreading the units out ... open space. The property in the back of the subdivision is a traditional, what we call straight zoning. 10,000, each lot has to have 10,000 square feet. Again because this is a PUD, it's clustered so again if you put that public street in, which Vasserman has a public street, 60 foot right-of-way, you'd certainly get significantly less units and how do you balance that, plus the appropriate, based on the... So at a minimum the Planning Commission wanted less units and what zoning application would apply for that. And then the other option would be to send it back to the Planning Commission and let them review, and give you better direction on which ever way you wanted to go on that. There isn't, they're at the 60 days, just ... you have 120 days so there is additional time to ... 45-50 days to evaluate that. The one concern I do have, if you remand it back to the Planning Commission, they've got a full agenda on the second one in June, and then the 4th of July is a Tuesday ... so it doesn't give a lot of time to try to meet that, if the Planning FT City Council Meeting — May 22, 2006 Commission. I just want to point that out. If you did want to do that, then we would have to ask for additional time... second meeting in June. So with that, if you had specific questions on the project itself, I can go into more details... comments from the Planning Commission. And again the findings of fact are in the staff report so I'd be happy to answer any questions. Mayor Furlong: Questions for Ms. Aanenson. Kate you mentioned different types of, ...choose my words correctly. Different types of zoning that will be available based upon the current guiding. Looking in the staff report, single family residential, low density residential. R-4, or R low and medium. Did we take a look at this site in terms of each of those types of zoning with the guiding, and what would be available and would this meet any of those plans? Kate Aanenson: I think in fairness, the fact that you're pinched between the Galpin Boulevard and the twin homes, I know we kind of felt the twin homes, it's the application of twin home and what allows you to get the most units. Mayor Furlong: Are twin homes, the twin homes are allowed within one or all of these. Kate Aanenson: That's correct. It is, but so is single family for that matter. The difference is the application and doing that PUD with a private street it does allow for more units. If you were to do a straight 10,000 square foot lot with a public street, that would certainly eliminate some of the units because you are required one more lot area per unit. But this takes the opportunity of kind of spreading that green space around. And secondly, it requires more dedication of right-of- way. Mayor Furlong: Okay. So it would be about, based upon the ordinance without the PUD there'd be 8 units you think or 6 or? Kate Aanenson: 6 to 8 maybe. Yeah, we laid this out this way. Again this incorporates a private street so you could probably get 10 but if you use the public street, which is what Vasserman did, so just to compare equal here, equal there. But again and the fact that it was pinched. Mayor Furlong: You're saying there's some reason to believe that a private street in this area. Kate Aanenson: Well you've got a large public street here. Then to do another one, it creates a lot of asphalt. But having said that, then it's always the challenge of the trade of what did the city get, and we don't really know of the exact product yet. It's a little bit more challenging. Mayor Furlong: Okay. The other question that I think you addressed is that, when the twin homes were presented and approved as a part of the concept plan, that was part of the concept plan for the entire north and south parcels currently, correct? Kate Aanenson: Correct. It is kind of a universal plan and the developer, they're trying to put something together that's a little bit more challenged on that so we want to proceed with a known quantity in their mind on the north side. 29 City Council Meeting — May 22, 2006 Mayor Furlong: Okay. Thank you. Any other questions for staff at this time? If not, is the applicant here this evening? Good evening. Perry Ryan: Good evening. Good evening Mayor Furlong and members of the council and staff. Thank you Kate for going through that. I think Kate did a fine job of laying out all the facts. This is just simply the graphic showing the overall as well as showing the twin homes on the north side. The 12 units. What I guess I wanted to kind of go through a little bit here was, she went through the history a little bit on there. We did gain concept approval from City Council on December 12`s. We went through at that, I believe there were 33 conditions that were recommended in the letter we received from the city on December 13`". And we went through it and as Kate pointed out, we were waiting for the market study. Our understanding was, that we could move forward, that twin homes were at least conceptually agreed upon so we did move forward. Submitted March 17'" originally. Meeting all 33 of the conditions and just, she did have, this is the concept plan. You can see the difference between the 10 units and the 12 units. And I did want to do, if I can, was go through. We did move forward with the 12 units. It wasn't something that we've done. This overlay is doing, if we can zoom in just a little. Okay. That's fine. What this shows, and apparently one of the biggest challenges that the Planning Commission was the number of units and we realized at the, it looks blurry because we've got two overlays there so I just wanted to explain that. We didn't understand that there was a challenge with the number of units. We discussed with staff about going with planned unit development. They gave us the 33 conditions as well as giving us some guidelines that may go into the planned unit developed, as far as setbacks from West 78u' Street. Setbacks from the west side and all the particulars. What this is pointing out is, this lighter building here that's kind of shaded is the concept which was approved in late 2005. And the darker buildings are the ... plans which are conforming to the PUD standards as were set out in the staff report. In the May staff report. What we wanted to point out, and again this is just kind of how we kind of went down this road. As you can see on the concept PUD we have 3 buildings in this location almost exactly as they were approved in the concept, and it's quite clear what we did is we added this building 11-12 and that was simply just by geometrics that we are able to accommodate the concept plan. The concept plan didn't have some of these setbacks in it. ...photo on the wetland as you can see where building 3-4 and building 5-6, and so basically from geometrics we are able to accommodate this. We did look at the Vasserman Ridge project to the west. We looked at the distances between these buildings and tried to do similarly the distances between these buildings and there was room for one more building and that was simply the magic behind it being 12 units. As you can see, the view from the Vasserman Ridge neighborhood has, does not really change from the approved concept plan. They wouldn't really know that this building 11-12 is in there. And then you go back to here, I'm looking on the overall layout. Again the area on the cul-de-sac being the same as the concept. You know they're still on ... about 2 units per acre. It's 12 units on 6 acres so we ... substantial change. We're certainly open. We went down the road with staff. A good planned unit development on this parcel. We thought that was the direction. I believe we've met all the conditions. There was additional conditions, they've got it up to 62 conditions and we're comfortable with those conditions with the current layout so you know it's a matter of do we leave it as a planned development. Do you remove units 34. I believe the last graphic that Kate had up was actually a graphic that we had given to Mr. Generous, do you want to zoom in just a touch. This is the R-4 layout that we did actually, which meets the R-4 requirements except for the private drive. And as it points out, you know we are in a little bit of Kit? City Council Meeting — May 22, 2006 a challenging situation. Now we are on West 78ie Street. A street which does not allow direct access to these units and so we've got a significant amount of street frontage that we cannot access, which is really one of the main issues which is requiring us to do a private drive so with that we're simply looking for direction. Obviously we thought we were meeting all of the directives which we received from staff. From City Council on the concept to build the 12 units. It was something that we just did because we were able to do it and meet the guidelines. And so this is, this is meeting the guidelines of the R-4 standards which is what the approval of Vasserman Ridge was. We do have a couple different builders that are looking at this. The architectural style would be very similar, almost exactly like what you see at Vasserman Ridge kind of elevations. But that's what we're looking at and I'd be more than happy to provide that as soon as we nail that down so. With that we're just, we're simply looking I guess for direction on which way to zone it but I just wanted to go through how we kind of got to that point. Mayor Furlong: Alright, thank you. Any questions for the applicant? What's your, you had it under your concept plan there, I think you had still the number on the south side of West 78's. You still have the 5. I think that's what you were pursuing. Is that what we had for that concept or not, or did we reduce? Perry Ryan: That was, when it came before the council staff was still looking for, staff was still looking for, there were two kind of major things that staff was looking or recommended. And one was the reduction in the amount of buildings. I don't know what the exact total was. It escapes me now. And the other one was meeting those setback requirements and this, which was I think increasing one from ... on the west side and the current layout does now meet all of those setback requirements but we have not changed the number of buildings yet. We're again kind of waiting for that study to come back. Mayor Furlong: Okay. And there were traffic studies and everything else with that? Perry Ryan: That's been completed and submitted as well and I believe, correct me if I'm wrong, I believe that shows that one of the things that this traffic doesn't show the detailed plan is that there's a median in here and it does anticipate a right-intright-out at this location. Mayor Furlong: Out on Galpin? Perry Ryan: Yeah. Mayor Furlong: Okay. Alright. Is all the north and south of West 781s, Ms. Aanenson, is that all guided the same? Kate Aanenson: That's correct. Mayor Furlong: Is it currently zoned agricultural? Kate Aanenson: That's correct. Mayor Furlong: And what's the guiding then? 31 City Council Meeting — May 22, 2006 Kate Aanenson: Yeah, low density residential, and again what I wanted to point out was how we got to this point of looking at commercial to begin with is when Mr. Pryzmus wanted that concept for the recreation center. It seemed to lend some credence that there's carte blanc could be used for commercial. And it was our understanding that was kind of a continuation of the golf course, kind of that recreation sort of thing but that was really not the intent a long term use. To go to something completely different, we felt we needed more information on that. So that's why we recommended against, as Mr. Ryan just pointed out, those conditions that really... recommend reduce the number of building sites because it looks like kind of your traditional commercial center. Mayor Furlong: My recollection was that it was also, not commercial but office. Kate Aanenson: That's correct. Mayor Furlong: It was staff's recommendation for all these... Kate Aanenson: Yes, and we have given him some guidance on if they wanted to pursue office, then we'd look at that, because again looking at that as being the low density, single family. Again if you went to twin homes, that could be consistent and how you apply the twin homes is a separate issue but could you do twin homes on the south side? Certainly. That could be another rezoning option too. Mayor Furlong: Ahight. Okay, any other questions for the applicant? No? Okay, appreciate it. So bring it to council for thoughts. Comments. Discussion. Councilman Peterson: Mr. Mayor I think that ... I don't recall the last time that we approved a project, PUD ... real challenge being able to rezone based upon... The retail market study, we approved this sometime I think in December as I recall and that was one of the things we all kind of wanted to wait and see what's going to happen with that. There were some... And then lastly, when I look at the concept of this, I looked at it as one project, not two separate parcels and that's probably the biggest challenge that I've got is, is now we're trying to separate it and I don't think we really want to do that. I really would like to see both of them, especially what it's going to be because I'm being asked to rezone. Having 12 townhomes, 10 whatever ultimately that go in there, just because there's 12 townhouses that we think are going to look like something isn't really... I don't want to use that term probably too much but it's appropriate in this case is that in the PUD we're asking for something that has higher standards... and once we approve the north side, that makes the south side less ... so I think it's premature. Mayor Furlong: Councilwoman Tjomhom. Councilwoman Tjomhom: Yeah, I going to be brief because I guess for me it's, I can't vote on something I can't see or don't know what I'm voting for or against. It wouldn't be fair to you. Especially after Town and Country... they spent hours I think trying to get me to vote for their development. I think there's too many. I think that they're kind of crammed in there. I have to agree with the Planning Commission on that. The first concept plan didn't have as many. The 32 City Council Meeting — May 22, 2006 layout was different and this is not what I saw at that time and so I too think that it's premature. I don't agree with splitting it up. I think it should be consistent in whatever does go in there, it needs to be well thought out and needs to have some sort of...It's hard to vote on something I really don't know what it's... Mayor Furlong: Okay, thank you. Councilman Lundquist. Councilman Lundquist: I would concur with comments, especially around the, when we looked at this as a concept, that we looked at it, I looked at it as a concept north and south of West 78`s Street and would concur with Councilman Peterson and Councilwoman Tjomhom on, I have a difficulty looking at one without the other and so being that that's what we looked at as a concept, you know I certainly understand, given market conditions why the developer would look that way but if we want to split it up, then let's, you know I think we're back at ground zero, at the starting point and if we want to split it up, let's go back and look at it that way versus a split right down. And when this came through Planning Commission, I was surprised that we were looking at two separate pieces so I would, I think given the approval of the concept to where it was, that this is something different and whether it be, call it premature to approve where we're at now, or a totally separate concept, I think it's semantics at that point but, that I'm not ready to go forward right now. I'm not in favor of remanding back to the Planning Commission because I think we've got more work to do than just sending it down so to speak, but this is clearly, I consider it clearly different than what we looked at in December. Mayor Furlong: Thank you, and my thoughts are consistent. There are a number of little component, little pieces with regard to this application that I have trouble with but the biggest component is the inconsistency with the concept plan that we approved just a few months ago, and that we did look at a single concept plan across the entire property, both north and south of West 78s. And this is not inconsistent with what we've done in the past as a council. There have been other concept plans. Advance Fitness I think comes to mind where there was a concept plan for a fitness center as well as some other retail. I think there was a bank. There's got to be a bank everywhere. But there was a bank. There was a restaurant. There was a hotel I think, and when it became clear to the property owner, the developer that the fitness center wasn't going to go forward, as I understand it they requested can we go forward with the other part anyway and the answer was no. We looked at it in it's entirety when it was approved and I think we need to be consistent here as well. I think I would be hesitant to even to suggest splitting them up because of reasons presented in the staff report and presented to the council back in December, as well as again in this staff report, that until you know what's going on the southern piece, you don't know the best use for the northern piece. I think this is the northern piece is more the tail wagging. It's the wrong end that you lead the horse with, let me put it that way. We wanted the southern part, that's where the bridle is, and we want to look at that and make sure that we're not, I think keeping this open to the extent we can makes a lot of sense. So I think to your point Councilman Lundquist, I agree with you. This is not what we had in mind. It's not what we spent a lot of time looking at but I think at this point, given the four options, I agree with you. Sending this back to the Planning Commission I don't think would provide value at this point. Would just cause more troubles and delay likely what I'm hearing here. I can't see either options B or C, which is some form of approval this evening, going forward. So from lacking the, what I consider the view of the entire north and south development, I don't 33 City Council Meeting — May 22, 2006 think we have enough motivation to go forward and change zoning at this point on the PUD so, and I'm hearing that pretty consistently here as well. Any other thoughts or comments or points of clarification? Councilman Lundquist: Mr. Mayor I would just, I mean I know Kate talked about time constraints but I would be open to allowing the developer some latitude to bring back a, something similar to the concept approval, but being cognizant that that would deviate from what went through the Planning Commission so I think we're kind of walking an interesting line there. And then I'd be willing to take a look I guess but you know if we come back with something, you know if we would opt to table and come back with something significantly different, I would have an issue with that just being that it wouldn't have gone through the entire public hearing and planning process as that piece so. Mayor Furlong: You're saying versus tabling tonight versus denial this evening? Councilman Lundquist: Correct. Mayor Furlong: Yep. Councilman Lundquist: But you know with that caveat that we've got to be, I personally would be not leave a lot of latitude for something significantly different. You know just out of respect for the process and the public hearing and the Planning Commission. Mayor Furlong: I guess what I was hearing Councilman Peterson you were saying it was the overall project. Councilman Peterson: ...the issue and to your point is, which one's first? And then I think I'm leaning towards the south has got to be first and then offer your rezoning to the north. Just because of all the ... bottom line is it's premature so ... denying things. That seems to be the more prudent way to go. Councilman Lundquist: I could get there too but you know, there's been a significant amount of effort on the developer's part and the staff part as well. Rather than you know cut that off, I'm willing to allow some latitude but I think we need to be careful how far we go deviating from this without going, you know starting back and going through the planning process again. Mayor Furlong: And I guess my only comment there is, well we haven't talked about the details here. You know the density. Lack of architectural views, designs. I mean there's been some feedback and certainly at the Planning Commission I would hope they've reviewed those Planning Commission meeting minutes. You know they dealt with it honestly and objectively and I would think that staff and the developer would take those comments to heart if this comes back as part of an overall development with the southern part, so I don't think it's a waste of time by any means and hopefully there'll be some efficiencies gained. Okay. Any other thoughts or comments? If not, is there a motion? 34 City Council Meeting — May 22, 2006 Councilman Peterson: Mr. Mayor I recommend we deny the proposed development as submitted by staff, subject to the findings of fact... Kate Aanenson: Can I make a clarification on the motion? So that would be the PUD, the preliminary plat, the CUP, findings of fact and then more specifically the two other items you just addressed as would be the rezoning. The fact that there's no architectural standards, and that you saw the project as an entire concept added to the findings of fact. Mayor Furlong: Okay. Thank you. Is there a second? Councilwoman Tjornhom: Second. Mayor Furlong: Made and seconded. Any discussion on that motion? Hearing none, proceed with the vote. Councilman Peterson moved, Councilwoman Tjornhom seconded that the City Council deny the request for rezoning from Agricultural Estate District (A2) to Planned Unit Development -Residential (PUD -R), Preliminary Plat creating 13 lots and one outlot with a variance for a private street and more than 4 homes accessing a private street, and Conditional Use Permit for development within the Bluff Creek Overlay District, subject to the findings of fact listed in the staff report and clarified by the Community Development Director. All voted in favor and the motion carried unanimously with a vote of 4 to 0. Perry Ryan: Just a small piece of direction. It was our understanding with the direction on that study was supposed to be done April 0. What I'm hearing from you guys is we can't come forward unless we come forward with the whole thing. Mayor Furlong: That's a, there's a question. Where are we in that process? Kate Aanenson: Sure. I guess the direction we've given the applicant is they wanted to pursue industrial office. That's a use that you've given us direction. We're identified that. That they can certainly pursue that. Is if they wanted to go for commercial, we would not support that until we spent more time and analysis but we certainly directed Mr. Ragatz that if he wanted to look at industrial zoning application. Mayor Furlong: And I know we received some preliminary results back from that market study but we haven't received the final report. Kate Aanenson: That's correct. Mayor Furlong: Is that, have we shared that with them on the preliminary information? Kate Aanenson: Yes. Mayor Furlong: Has that been shared with you? 35 City Council Meeting — May 22, 2006 Kate Aanenson: I talked to Mr. Ragatz on some of that, yeah. Perry Ryan: Is the current concept layout... following industrial office as you suggest? Kate Aanenson: No. It still has too many buildings. How that's laid out and the footprint so. Perry Ryan: ...think of commercial with the southern part? Kate Aanenson: Well we should be getting that this week but then the goal of that then to sit down and let the staff kind of direct what, where we think we're going. Then how we're going to implement and where we should go once we get that data. So if we say we're going to rezone another piece of property along Highway 5, I don't think that's going to happen anytime soon for that. I think what we're trying to do is kind of pick out those target areas that we want to maybe specifically put into a study area and do a more specific analysis on that. That would be my recommendation and then come back to you and we just haven't had a chance to sit down and go through all that. Councilman Lundquist: Given that we just said we want to develop the south before we move forward, I mean Kate when do you think that we'd at least have enough information to give, I mean out of fairness to. Kate Aanenson: Well I think clearly right now the market study and Mr. McCombs said that that really for more strip commercial along Highway 5, we're just getting the same sort of thing as we already have. Do we need that? No. It'd be, you know I think what we're looking at is to try other opportunities for different types of retail and that would end up probably somewhere else in the city. We do need more office. I think clearly that's what he said is that we need to hang onto our office, and we identified this since we knew this piece of property was in flux when we looked at that 2005 area, we certainly, the staff identified this as an appropriate use for some office. We always considered, based on it's location, that'd be a nice medical, dental, those sort of things in this location and while we would support a zone change, it wouldn't be to just add another, more strip center where we get kind of the same, the day to day things we already have. That's one thing that was pointed out in the study that we have a lot of already those things that meet the daily need and those other uses may go somewhere south of 5. Mayor Furlong: So with regard to the preliminary information we have, there's nothing that I'm hearing that has changed your mind based upon what you. Kate Aanenson: That's correct. Mayor Furlong: What you thought for this particular property. Not maybe perhaps elsewhere in the city there might have been some other things but based on the preliminary information from that study for this property here. Kate Aanenson: That's correct. 792 City Council Meeting — May 22, 2006 Perry Ryan: So where you ended there, did I hear you correctly, you did say that you would support office use? Kate Aanenson: Yes. Perry Ryan: You would? Okay. Kate Aanenson: We said that. We said that, no. Perry Ryan:... you said industrial. Kate Aanenson: No. Office, well office yes. Councilman Lundquist: It's OI. Kate Aanenson: It's OI. Office or industrial. Perry Ryan: Because I mean with all due respect we've been waiting 5 months and so if we're not doing a detailed analysis on the site, we really need to move forward with something and if we are to get some office, then we move forward with that concept plan. Todd Gerhardt: Well Mayor, if I may. We started the retail study oh 3 months ago and we're looking for results from that. They gave some preliminary results and made some broad statements and council had asked for some direction here. I think Kate gave that and as a part of his preliminary presentation he recommended to staff and to the chambers that we shouldn't be adding more of what we already have in the downtown. Nothing against our dry cleaners or things like that but that was one of the examples. You're just going to continue to get more of what you already have. You should try to get more uses that would support the current retailers in the downtown, and he recommended trying to do more office and bringing users to your current restaurants, to your dry cleaners and to your other establishments. I think he referenced a study that they had done that most of those users during the noon hour, 60% of them go shopping so they would go to the clientele in the downtown area and support the downtown area and make it stronger. Perry Ryan: So those ancillary deals like the cleaners and what not, which was actually added on as possible additional amenities to the office use, which we talked about in the December City Council meeting, not those additional uses but probably just the office use. Todd Gerhardt: Correct. Kate Aanenson: And just to be clear. Perry Ryan: We're looking for direction. Todd Gerhardt Yep. 37 City Council Meeting — May 22, 2006 Mayor Furlong: I would encourage you to set up a time and meet with staff because it'd probably be easier outside of a council meeting to have the back and forth questions. Kate Aanenson: And for the record, I've had this complete conversation with your partner so I don't know where the miscommunication is but he was in my office. PerryRyan: I just want it for the record. Kate Aanenson: Yep, so. Mayor Furlong: Okay. Very good, thank you. PLANNED UNIT DEVELOPMENT. Kate Aanenson: Thank you Mayor, members of the council. Planning Commission held a public hearing on this project on May 2°d and they voted 6-0 to approve the project. The project is kind of filling up the last few lots on the Arboretum Business Park. This property actually has access facing, or excuse me, faces 41 while it has access off of Water Tower Place. Eventually that street will go when 41 gets lowered, will have access to that street itself but right now it has to come internally. The site plan itself, I'm not going to put up the big one. Here's the material. What we did have, and change to some of the entrance. If you look at the original one, this, can you zoom in on that. A little bit more articulated on the views. The back of this building has loading docks. It actually backs onto the other building so you've got back to back loading docks, so there's just a few questions on the sidewalk. Then the other issue that the Planning Commission did spend some time on was, the roof top screening. Because of the elevation they decided that that probably was, that's something that we always make an evaluation on when we're looking at projects is sometimes trying to screen something so that it doesn't need to be actually, because it's more of a kind of a visual and kind of as opposed to just leaving it natural so they decided to use the charcoal gray painted, low profile HVAC equipment and that should... So with that, what they're asking for is site plan approval and the PUD standards were put in place here a number of years ago. So unless there's specific questions, I showed the materials. The rock base block. It's pretty articulated. It's a nice looking building and the staff is recommending approval with the conditions in the staff report, and I'd be happy to answer any questions you have. Mayor Furlong: Thank you. Questions for staff. Councilwoman Tjornhom: Kate, this is not, this is not retail is it? This is just a showroom? Kate Aanenson: Yeah, office showroom. It's similar to some of the other ones we have up there. It's mostly warehousing space. 38 0 May 23, 2006 CITY OF CI11111I1tfJJG11 IIHI�N Gll Mr. Rich Ragatz Epic Development XVI, LLC 7700 Market Boulevard 9820 Sky Lane PO Box 141 Chanhassen, MN 55317 Eden Prairie, MN 55347 Administration Re: Galpin Crossing Twinhomes Phone: 952.227.11 DO Planning Case No. 06-13 Fax: 952.227.1110 Building Inspections Dear Mr. Ragatz: Phone: 952.227.1180 Fax. 952.227.1190 This letter is to confirm that on May 22, 2006, the Chanhassen City Council voted Engineering unanimously (4-0) to deny your request for rezoning 6.09 acres located at the Phone: 952.227 1160 northwest comer of Galpin Boulevard and West 78th Street from Agricultural Estate Fax: 952.227.1170 District, A2, to Planned Unit Development — Residential, PUD -R; deny the Finance Preliminary Plat creating 13 lots and one outlot with a Variance for a private street Phone: 952227.1140 and more than four homes accessing a private street; and deny the Conditional Use Fax 9522271110 Permit for development within the Bluff Creek Overlay District. Park 8 Recreation Phone: 952.227.1120 The City's denial was based on the enclosed findings of fact. Fax: 952.227.1110 iecreation center If you have any questions or need additional information, please contact me at 0 Coulter Boulevard ane: 952.227.1400 (952) 227-1131 or beenerousiPci.chanhassen.mn.us. -ax: 952.227.1404 Planning 8 Sincerely, ` b „aluraf Resources Phone: 952.227.1130 //�� Fax: 952.227.1110 Public worts Robert Generous, AICP 1591 Park Road Senior Planner Phone: 952227.1300 Fax: 952.227.1310 Enclosure Senior Center Phone: 952.227.1125 c: Perry Ryan, Ryan Engineering Fax: 952.2271110 Web site ec: Kate Aanenson, Community Development Director www.ci chanhassen.mn.us Todd Gerhardt, City Manager Roger Knutson, City Attorney gAplan\2006 planning cases\06-13 galpin crossing twinhomes\denial lettecdoc $CANM M The City of Chanhassen • A growing community with clean lakes, quality schools, a chamling downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play. C]TY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES, MINNESOTA FINDINGS OF FACT M13 Application of Epic Development XVI, LLC request for rezoning from Agricultural Estate District, A2, to Planned Unit Development — Residential, PUD -R; Preliminary plat approval creating 13 lots and one Outlot with a Variance for a private street and more than four homes accessing a private street; and Conditional Use Permit for development within the Bluff Creek Overlay District. On May 2, 2006, the Chanhassen Planning Commission met at its regularly scheduled meeting to consider the application of Epic Development XVI, LLC for a Planned Unit Development to permit a 12 -unit twin home project. The Planning Commission conducted a public hearing on the proposed Planned Unit Development preceded by published and mailed notice. The Planning Commission heard testimony from all interested persons wishing to speak and made a recommendation of denial for the development proposal. On May 22, 2006, the Chanhassen City Council met at its regularly scheduled meeting to consider the application of Epic Development XVI, LLC for a Planned Unit Development to permit a 12 -unit twin home project. The City Council conducted a public hearing on the proposed Planned Unit Development. The City Council voted to deny the proposed development based on the following findings: FINDINGS OF FACT The property is currently zoned Agricultural Estate District, A2. 2. The property is guided in the Land Use Plan for Residential — Low Density. 3. The legal description of the property is: See Exhibit A. 4. Rezoning a. The proposed action has been considered in relation to the specific policies and provisions of and has been found to be inconsistent with the following City Comprehensive Plan policies: Land Use Policy: "Encourage low density residential development in appropriate areas of the community in a manner that reinforces the character and integrity of existing single-family neighborhoods while promoting the establishment of new neighborhoods of similar quality." The proposed development does not reinforce the character of the adjacent development since it does not maintain the lot sizes, housing °A"'� orientation, rhythm and spacing of that development. Housing policy: "New development shall be discouraged from encroaching on vital natural resources or physical features that perform essential protection functions in their natural state." The proposed development encroaches in to the Bluff Creek corridor. b. The proposed use does not conform with all performance standards contained in the Zoning Ordinance for Planned Unit Developments since it does lead to a significantly higher quality development nor a more sensitive development than would have been the case with the use of other more standard zoning districts. The environmental sensitivity is provided through the enforcement of the Bluff Creek Overlay and Wetland Protection standards. The proposed development did not propose significantly higher architectural standards or provide architectural details. c. The proposed concept Planned Unit Development included both the north and south sides of West 78`s Street and should be reviewed concurrently with each other. 5. Subdivision. a. The proposed subdivision is not consistent with the zoning ordinance, since it does not comply with the minimum standards of the Agricultural Estate District, A2, standards which the property is zoned, nor does it comply with the Planned Unit Development standards as specified in Rezoning finding 4. b. above. b. The proposed subdivision is not consistent with all applicable city, county and regional plans including but not limited to the city s comprehensive plan as specified in Rezoning finding 4. a. above; c. The proposed subdivision does not make adequate provision for water supply, storm drainage, sewage disposal, streets, erosion control and all other improvements required by the subdivision ordinance since it does not adequately accommodate storm drainage and flood protection measures; 6. Variance (Private Street and more than four units on a private street). a. The requirement for a public street is not a hardship. A reasonable use of the property can be achieved with a public street. Economic consideration alone are driving the request for a private street. The purpose of the private street is to increase the number of lots. A public street could be developed as part of the proposed development. Conditional Use Permit. When approving a conditional use permit, the City must determine the compatibilty of a proposed development with existing and proposed uses. a. The proposed development will be inconsistent with the objectives of the city's comprehensive plan and the zoning ordinance as specified in findings 4 a. and b. above. 2 b. The proposed development is not designed, constructed, operated and maintained so to be compatible in appearance with the existing or intended character of the general vicinity and will not change the essential character of that area since it does not maintain the spacing and rhythm of that development.. c. The proposed development will not be aesthetically compatible with the area since it does not maintain the spacing and rhythm of that development and appears overly dense. d. The proposed development will not meet standards prescribed for Planned Unit _Developments as provided in finding 4.b. above. ADOPTED by the Chanhassen City Council this 22nd day of May, 2006. VXV s PARCEL A: That part of the southwest Quarter of the southwest Quarter of section 10, Township 116, Range 23 and the Northwest Quarter of the Northwest Quarter of scction 15, Township 116, Range 23, Carver County, Minnesota, described as follows: Beginning at the southwest corner of said section 10; thence on as assumed bearing of North 1 degree 56 minutes 40 seconds west along the West line of said Southwest Quarter, a distance of 1026.89 feet; thence south 79 degrees 32 minutes 20 seconds East, a distance of 177.77 feet; thence south 86 degrees 32 minutes 20 seconds East, a distance of 100.40 feet; thence south 78 degrees 32 minutes 20 seconds East, a distance of 194.14 feet; thence south 74 degrees 32 minutes 20 seconds East, a distance of 150.00 feet; thence south 47 degrees 17 minutes 20 seconds East, a distance of 75.43 feet; thence North 82 degrees 42 minutes 40 seconds East, a distance of 74.98 feet; thence south 58 degrees 17 minutes 20 seconds East, a distance of 84.58 feet; thence south 89 degrees 17 minutes 20 seconds East, a distance of 164.63 feet; thence south 18 degrees 17 minutes 40 seconds west, a distance of 824.19 feet to the northerly right of way line of Trunk Highway 5; thence North 85 degrees 54 minutes 50 seconds West along said northerly right of way, a distance of 33.08 feet; thence south 56 degrees 40 minutes 55 seconds West along said northerly right of way, a distance of 158.95 feet; thence North 85 degrees 54 minutes 50 seconds West along said northerly right of way, a distance of 518.22 feet to the west line of the Northwest Quarter of section 15, Township 116, Range 23; thence North 1 degree 37 minutes 50 seconds West along said west line of the Northwest Quarter, a distance of 9.12 feet to the point of beginning. which lies northwesterly of that particular northwesterly right-of-way line of Parcel 216, as shown on MINNESOTA DEPARTMENT OF TRANSPORTATION RIGHT OF WAY PLAT NO. 10-08, recorded as Document No. 265755 and as amended on MINNESOTA DEPARTMENT OF TRANSPORTATION RIGHT OF WAY PLAT NO. 10-14, recorded as Document NO. 279658, described as follows: commencing at the southwest corner of said section 10; thence on an assumed bearing of North 1 degree 56 minutes 40 seconds west, along the west line of the Southwest Quarter of said section 10, a distance of 401.19 feet, to a particular right-of-way line of said parcel 216 and the point of beginning of the line to be described; thence North 47 degrees 18 minutes 16 seconds East a distance of 175.14 feet, to an angle point in said right-of-way line; thence North 47 degrees 18 minutes 19 seconds East a distance of 22.71 feet, to a point of curvature in said right-of-way line; thence easterly a distance of 662.60 feet, along a non-tangential curve concave to the south having a radius of 633.04 feet and a central angle of 59 degrees 58 minutes 14 seconds and having a chord of 632.76 feet which bears North 77 degrees 17 minutes 27 seconds East to an angle point in said right-of-way line; thence North 56 degrees 16 minutes 30 seconds East, not tangent to said curve a distance of 114.28 feet, to an angle point in said right-of-way line; thence North 22 degrees 13 minutes 10 seconds East, along said right-of-way line, a distance of 116.13 feet and said line there terminating. 4 0 March 21, 2006 CITY OF M, Pe RyananCHMNSEN Epic Development ent XVI, LLC 7700 Market Boulevard PO Box 147 Chanhassen, MN 55317 9820 Sky Lane Eden Prairie, MN 55347 Administration Re: Galpin Crossing Ttwinhomes Phone: 952.227.1100 Planning Case No. 06-13 Fax: 952.227.1110 the pond capacity will change the site configuration; therefore, Engineering Building Inspections Dear Mr. Ryan: Phone: 952.227.1180 hydrology calculations are correct. Fax: 952.227.1190 Staff has reviewed the documents which were submitted for the above -referenced Engineering project. Based on this review, the submittal is incomplete and cannot be Phone: 952.227.1160 scheduled for public review. The following information needs to be submitted Fax: 952.227.1170 before we can initiate the City review process: Finance than the developer anticipates. Phone: 952227.1140 ■ The existing conditions should include site typography as well as typography Fax: 952227.1110 within 100 feet beyond the project boundary. Park & RecreaRoa Phone: 952.227.1120 ■ The preliminary plat shall include the building setback information as shown Fax: 952.227.1110 on the preliminary site plan. The PUD perimeter setback is 50 feet, not 30 Recreation Center feet. An additional variance would be necessary for a 30 -foot setback. 2310 Coulter Boulevard Phone-. 952.227.1400 Fax 9522211404 Landscape plan with plant schedule listing quantity, size and species of trees to be planted as reforestation. Plan shall also include listing of buffer yard Planning d requirements with plant schedule and planting locations shown on plan (buffer Natural Resources Phone:952.227.1130 ired yard planting rSuirements have not been provided). Screening is required Fax: 952.227.1110 from West 78tree t Public works 1591 Park Road Gal Cin submission included hydrology calculations. The The mross ' P g suY gY Phone: 952.221.1300 information submitted shows that the proposed pond is undersized. Increasing Fax: 952.227.1310 the pond capacity will change the site configuration; therefore, Engineering feels that plan review at this point is moot until we are confident the Senior Center Phone: 952.227.1125 hydrology calculations are correct. Fax: 952.227.1110 This site was under consideration for the west water treatment plant (WTP). Web she wwe.ci.chanhassemmmus Staff will review the soils report for the west WTP siting study and compare with the soils report submitted to determine if the thickness of peat is greater than the developer anticipates. ■ Provide a digital copy of the plans in TIFF -Group 4 (*.tif) format. It is incumbent on the developer to provide justification for any proposed variances. Please prepare a narrative showing how the proposed variance meets the standards for approval of a variance. SCANNED The City of Chanhassen • A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play. Mr. Perry Ryan Galpin Crossing Twinhomes March 21, 2006 Page 2 Once you have submitted the required information, we will schedule this item for Planning Commission and City Council review. If you have this information in by March 31, 2006, we can have you on the May 2, 2006 Planning Commission agenda. If you have any questions or need additional information, please contact me at (952) 227-1131. Sincere] Robert Generous, AICP Senior Planner Attachment: Copy of Receipt ec: Kate Aanenson, Community Development Director gAplan\2006 planning cases\06-13 galpin crossing twinhomes\incomplete letter.doc f M r CITY OF CHANHASSEN P O BOX 147 CHANHASSEN MN 553 03/20/2006 8:37: Receipt No. 0005674 CLERK: danielle PAYEE: Epic Development 3441 St. Paul Avenue Minneapolis MN 55416 Galpin ------------------------------------------------------- Use & Variance 1,405.00 Sign Rent 200.00 Recording Fees 50.00 Total Cash Check 5222 Change 1,655.00 0.00 1,655.00 0.00 Administration December 13, 2005 CITY OF C>�ANI�ASSEN Mr. Rich Ragatz Epic Development 7700 Market Boulevard 9820 Skylane PC Box 147 Chanhassen, MN 55317 Eden Prairie, MN 55347 Administration Re: Galpin Crossing — Planning Case #05-38 Phone, 952.227.1100 Fax 952.227.1110 Dear Mr. Ragatz: Building Inspections Phone: 952.227.1180 Fax: 952.227 1190 This letter is to confirm that on December 12, 2005, the Chanhassen Cit Council Y approved the concept planned unit development for a twin home and office Engineering development project located at the northwest corner of Highway 5 and Galpin P2.21 Fax: 952227.1170 Boulevard subject to addressing the following issues as part of the next phase of development review: Finance Phone: 211 1. Development will require a land use amendment from residential to office for Fax: 95252.227.127.11100 the southern eight acres, conditional use permit for development within the Park & Recreation Bluff Creek Overlay District, preliminary Planned Unit Development, site Phone: 952.227.1120 plan review, and subdivision review with a variance for the private street. Fax: 952.227.1110 RecreationCouer Center 2310 Coulter Boulevard 2. The development needs to comply with the design standards for commercial, P P Y gn Phone: 952.227.1400 industrial and office institutional developments. Additional building detail Fax: 952.227.1404 needs to be provided to ascertain the quality of the proposed development. Planning 8 Natural Resources 3. Planned Unit Developments require that development design standards be Phone: 952 227.1130 developed for the project. Fax: 952.227.1110 Public Works 4. The following building and parking setbacks will be incorporated in the 1591 Park Road design standards: 70 feet from Highway 5, 50 feet from West 78th Street and Phone: 952.227.1300 Galpin Boulevard, 25 feet from private streets, 30 feet from the western Fax: 952.227.1310 property line, 50 feet from Bluff Creek, 40 feet from the Bluff Creek Overlay Senior Center district primary zone boundary and 40 feet from the wetland buffer edge. Phone: 952227.1125 Fax: 952.227.1110 5. Reduce the number of building sites proposed on parcel B. Web Site www.ci.chanhassen.mn.us 6. Verify that all buildings would comply with the proposed and required setbacks. 7. The goals set forth in the Bluff Creek Watershed Resources Management Plan (BCWNRMP) for the Lowlands Region are to be incorporated in the further development of the plan. 8. Drainage and utility easements shall be provided over all existing wetlands, wetland mitigation areas, buffer areas used as PVC and storm water ponds. The City of Chanhassen • A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play. Mr. Rich Ragatz December 13, 2005 Page 2 9. A preliminary grading plan must be prepared. 10. A preliminary utility plan must be prepared. 11. The applicant must provide storm water calculations for any proposed subdivision. The development will need to provide storm water ponding on site for treatment prior to discharge into the wetlands or creek. The development must meet pre -development runoff rates for the 10 year and 100 year storm. On site storm water ponding must be sufficient to meet all city water quality and quantity standards. 12. Erosion and sediment control measures will be required in accordance with Chanhassen City Code and the Minnesota Pollution Control Agency's (MPGA) National Pollutant Discharge Elimination System (NPDES) Phase II Construction Permit. Type H silt fence shall be provided adjacent to all wetland fill areas, areas to be preserved as buffer or if no buffer is to be preserved, at the delineated wetland edge. 13. This project will be subject to Surface Water Management Plan (SWMP) connection charges for water quality and water quantity. 14. A MnDOT and Carver County permit will be required for access to the site. 15. The applicant will need to submit a survey showing existing trees and woodlands along with canopy coverage calculations and proposed reforestation. 16. The applicant will be required to pay park fees pursuant to city ordinance. 17. The applicant will need to provide pedestrian connections internally between the buildings and from the site to adjacent trails and sidewalks. 18. A wetland buffer 16.5 feet in width must be maintained around the wetland basin. Wetland buffer areas shall be preserved, surveyed and staked in accordance with the city's wetland ordinance. The applicant must install wetland buffer edge signs, under the direction of city staff, before construction begins and must pay the city $20 per sign. All structures shall maintain a 40 foot setback from the edge of the wetland buffer. The grading and erosion control plan shall show the actual wetland buffer widths proposed to meet the minimum average buffer width requirements as well as the 40 foot wetland buffer setback. 19. The Bluff Creek corridor primary zone boundary and required buffer and setback will need to be incorporated on the plans. 20. All of the Bluff Creek Overlay District primary zone should be included as an Outlot. 21. The Bluff Creek corridor primary zone boundary and the required setback shall be indicated on the grading plan. Mr. Rich Ragatz December 13, 2005 Page 3 22. The development will require a landscaping plan. Staff recommends that significant landscape screening and berming be incorporated along Highway 5 as well as West 78th Street. 23. The developer will need to locate all significant trees on the site and provide a calculation of existing canopy coverage as well as proposed tree removal. 24. The following landscape and tree preservation issues are applicable to the Galpin Crossings site: Parcel A • Show Bluff Creek Primary Zone and setbacks. • Habitat restoration/enhancement around wetland and Bluff Creek. • Tree preservation calculations and landscape plan including reforestation and bufferyard plantings. • Show existing trees outside of Primary Zone on landscape plan. Parcel B • No overstory trees allowed under overhead utility lines. Show overhead utility lines on landscape plan. • Tree preservation calculations and landscape plan including reforestation and bufferyard plantings. • Meet parking lot landscape requirements. • Meet bufferyard landscape requirements. Show existing boulevard trees along West 78th Street on landscape plan. 25. Galpin Crossing shall pay full park dedication fees at the rate in force upon final platting. 26. The commercial buildings are required to have an automatic fire extinguishing system. 27. The plans must be prepared and signed by design professionals licensed in the State of Minnesota. 28. A demolition permit must be obtained before beginning demolition of any existing structures. 29. The location of property lines will have an impact on the code requirements for the proposed buildings, including but not limited to; allowable size and fire -resistive construction. The plans as submitted do not have the information necessary to determine compliance at this time. 30. The owner and or their representative shall meet with the Inspections Division as soon as possible to discuss property line issues as well as plan review and permit procedures. 31. The developer shall have soil borings made to determine the suitability of the site for development. Mr. Rich Ragatz December 13, 2005 Page 4 32. A traffic study shall be completed for the proposed development. 33. The applicant shall not submit for preliminary review until the Retail Market Study has been completed by the City. I would also like to remind you that the City has not received payment for the property owners list for the public hearing. A copy of the invoice is attached. Please pay this invoice at your earliest convenience. You will need to submit a new development review application at the time of your preliminary submittal. That submittal will need to address the issues outlined above. We are anticipating that the Market Study will be completed within three to four months. If you have any questions or need additional information, please contact me at (952) 227-1131 or by email at bgenerous@ci.chanhassen.mn.us. Sincerely, Robert Generous, AICP Senior Planner Attachment: Invoice dated November 3, 2005 c: John Przymus Perry Ryan, Ryan Engineering gAplan\2005 planning cases\05-38 galpin aossing\approval letter concept.doc Web site The Planning Commission's major concern was that there were too many units www.ci.chanhawn.mn.us proposed within the developable area and that some dwelling units should be eliminated from the project. It was suggested that the use of R4, Mixed Low Density Residential District zoning would be appropriate for the site. However, they left it up to the developer if they wanted to revise their plat and have it re- reviewed by the Planning Commission or continue on to City Council for review. The City of Chanhassen • A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play. 7 MEMORANDUM TO: Todd Gerhardt, City Manager CITYOF FROM: Bob Generous, Senior Planner CHM NSEN DATE: May 22, 2006 7700 Markel Boulevard PO Boa 147 Chanhassen, MN 55317 Po Crossing SUBJ: GaltTwinhomes g Planning Case #06-13 Administration Phone: 952.227.1100 Fax: 952.227.1110 EXECUTIVE SUMMARY Building Inspections Phone: 952.221.1180 Fax:952227.1190 The applicant proposing liis (6 -building) twinhdevelopment on six g a 12 -unit ( g) ome P acres of land. The approvals requested include a rezoning of the property from A2, Engineering Agricultural Estate District, to PUD -R, Planned Unit Development — Residential, Phone: 952.227.1160 preliminary plat approval with variances for a private street and more than four Fax: 952.227.1170 homes on a private street, and a conditional use permit for development within the Finance Bluff Creek Corridor. Phone: 952.227.1140 Fax: 952.227.1110 ACTION REQUIRED Park & Recreation Phone: 952.221.1120 City Council approval requires a majority of City Council present. Fax: 952.227.1110 Recreation Center 2310 Coulter Boulevard PLANNING COMMISSION SUMMARY Phone: 952.227.1400 Fax: 952227.1404 The Planning Commission held a public hearing on May 2, 2006, to review the Proposed development. The Planning Commission voted 3 to 3 to approve the Planning a Natural Resources rezoning of the property to PUD -R. This vote failed so thus acts as a negative Phone: 952.227.1130 recommendation for the rezoning. The Planning Commission voted 1 for to 5 Fax: 952227.1110 against a motion to approve the preliminary plat with variances. This action serves Public works as a negative recommendation for the subdivision. Finally, the Planning 1591 Park Road Commission voted 1 for to 5 against a motion to approve the conditional use Phone: 952.227.1300 permit for development within the Bluff Creek Corridor. This action serves as a Fax: 952.227.1310 negative recommendation for the conditional use permit. The Planning seniarCemer Commission minutes are item la of the May 22, 2006 City Council packet on Phone: 952 227,1125 pages 3 through 27 of the minutes. Fax: 952.227.1110 Web site The Planning Commission's major concern was that there were too many units www.ci.chanhawn.mn.us proposed within the developable area and that some dwelling units should be eliminated from the project. It was suggested that the use of R4, Mixed Low Density Residential District zoning would be appropriate for the site. However, they left it up to the developer if they wanted to revise their plat and have it re- reviewed by the Planning Commission or continue on to City Council for review. The City of Chanhassen • A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play. Todd Gerhardt May 22, 2006 Page 2 of 3 RECOMMENDATION The Planning Commission recommends that the Rezoning, Preliminary Plat and Conditional Use Permit for Galpin Crossing Twinhomes be denied based on the Planning Commission's findings of fact. The City Council also has the following options: A. Deny the proposed development. B. Approve the proposed development as submitted by the developer subject to the conditions of the staff report, deleting the additional language of condition 1 of the preliminary plat. C. Approve the proposed development, but for 10 units, as specified in the revised motions on pages 14 —19 of the May 2, 2006 staff report. D. Send the project back to the Planning Commission for review based on a revision to the development proposal incorporating fewer dwelling units within the project as specified by City Council. Option A would let the developer know that a Planned Unit Development for the residential development of the property was not appropriate. Other zoning options consistent with the Comprehensive Plan would include Single -Family Residential District, RSF, Mixed Low Density Residential District, R4, or Residential Low and Medium Density Residential District, RLM. RSF zoning permits single-family homes on 15,000 square -foot lots. R4 zoning permits single-family homes on 15,000 square -foot lots and twin homes on lots with 10,000 square feet per unit. R4 zoning is the zoning of the Vasserman Ridge development to the west of the site. RLM zoning permits single-family detached homes on 9,000 square -foot lots, twin homes on 7,260 square -feet per unit lots, of attached housing with lot areas of 5,445 square feet per unit. Option B approves a 12 -unit, 12 -lot development of the site as proposed by the developer. Option C would eliminate two units from the developer's proposal and be similar to the 10 -unit proposal submitted as part of the concept review for the site. This option eliminates the two lots (3 and 4) that are behind the other units that break up the rhythm and uniformity of the development. Option D would direct the developer to revise the plans and go back to the Planning Commission for review and recommendation. It would provide the developer with specific direction on revisions to the plan. The 60 -day review period ends on May 29, 2006. The developer can either waive their rights for a 60 -day review, extend the review period for an additional 60 days, or the city can take an additional 60 days to review revised plans based on City Council direction to the developer. In trying to determine the ramifications of using the R4 zoning option, staff was able to create a subdivision design, accessed via a private street, which contained 10 twinhome dwelling units. Todd Gerhardt May 22, 2006 Page 3 of 3 However, if a public street is used, staff was only able to create a six twinhome dwelling unit development. Staff recommends option C and adoption of the three motions on pages 14 —19 as specified in the revised staff report dated May 2, 2006. ATTACHMENTS 1. Findings of Fact and Recommendation (denying project) 2. Planning Commission Staff Report Dated May 2, 2006. 9:\plan\2006 planning cases\06-13 galpin crossing twinhon a \cxecu[ive summary.doc CITY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES, MINNESOTA FINDINGS OF FACT AND RECOMMENDATION QW3 Application of Epic Development XVI, LLC request for rezoning from Agricultural Estate District, A2, to Planned Unit Development — Residential, PUD -R; Preliminary plat approval creating 13 lots and one Outlot with a Variance for a private street and more than four homes accessing a private street; and Conditional Use Permit for development within the Bluff Creek Overlay District. On May 2, 2006, the Chanhassen Planning Commission met at its regularly scheduled meeting to consider the application of Epic Development XVI, LLC for a Planned Unit Development to permit a 12 -unit twin home project. The Planning Commission conducted a public hearing on the proposed Planned Unit Development preceded by published and mailed notice. The Planning Commission heard testimony from all interested persons wishing to speak and now makes the following: FINDINGS OF FACT 1. The property is currently zoned Agricultural Estate District, A2. 2. The property is guided in the Iand Use Plan for Residential — Low Density. 3. The legal description of the property is: See Exhibit A. 4. Rezoning a. The proposed action has been considered in relation to the specific policies and provisions of and has been found to be inconsistent with the following City Comprehensive Plan policies: Land Use Policy: "Encourage low density residential development in appropriate areas of the community in a manner that reinforces the character and integrity of existing single-family neighborhoods will promoting the establishment of new neighborhoods of similar quality." The proposed development does not reinforce the character of the adjacent development since it does not maintain the lot sizes, housing orientation, rhythm and spacing of that development. Housing policy: New development shall be discouraged from encroaching on vital natural resources or physical features that perform essential protection functions in their natural state. The proposed development encroaches in to the Bluff Creek corridor. b. The proposed use does not conform with all performance standards contained in the Zoning Ordinance for Planned Unit Developments since it does lead to a significantly higher quality development nor a more sensitive development than would have been the case with the use of other more standard zoning districts. The environmental sensitivity is provided through the enforcement of the Bluff Creek Overlay and Wetland Protection standards. 5. Subdivision. a. The proposed subdivision is not consistent with the zoning ordinance, since it does not comply with the minimum standards of the Agricultural Estate District, A2, standards which the property is zoned; b. The proposed subdivision is not consistent with all applicable city, county and regional plans including but not limited to the city's comprehensive plan as specified in item 4. a. above; c. The proposed subdivision does not make adequate provision for water supply, storm drainage, sewage disposal, streets, erosion control and all other improvements required by the subdivision ordinance since it does not adequately accommodate storm drainage and flood protection measures; 6. Variance (Private Street and more than four units on a private street). a. The requirement for a public street is not a hardship. A reasonable use of the property can be achieved with a public street. Economic consideration alone are driving the request for a private street. The purpose of the private street is to increase the number of lots. A public street could be developed as part of the proposed development. Conditional Use Permit. When approving a conditional use permit, the City must determine the capability of a proposed development with existing and proposed uses. a. The proposed development will be inconsistent with the objectives of the city's comprehensive plan and the zoning ordinance as specified in findings 4 a. and b. above. b. The proposed development is not designed, constructed, operated and maintained so to be compatible in appearance with the existing or intended character of the general vicinity and will not change the essential character of that area since it does not maintain the spacing and rhythm of that development.. c. The proposed development will not be aesthetically compatible with the area since it does not maintain the spacing and rhythm of that development and appears overly dense. 2 d. The proposed development will not meet standards prescribed for Planned Unit Developments as provided in finding 4.b. above. RECOMMENDATION The Planning Commission recommends that the City Council deny the Planned Unit Development for Galpin Crossing Twinhomes. ADOPTED by the Chanhassen Planning Commission this 2°d day of May, 2006. CHANHASSEN PLANNING COMMISSION M Its Chairman 3 Fm 11- r PARCEL A: That part of the southwest Quarter of the southwest Quarter of section 10, Township 116, Range 23 and the Northwest Quarter of the Northwest Quarter of section 15, Township 116, Range 23, Carver County, Minnesota, described as follows: Beginning at the southwest comer of said section 10; thence on as assumed bearing of North 1 degree 56 minutes 40 seconds west along the West line of said Southwest Quarter, a distance of 1026.89 feet; thence south 79 degrees 32 minutes 20 seconds East, a distance of 177.77 feet; thence south 86 degrees 32 minutes 20 seconds East, a distance of 100.40 feet; thence south 78 degrees 32 minutes 20 seconds East, a distance of 194.14 feet; thence south 74 degrees 32 minutes 20 seconds East, a distance of 150.00 feet; thence south 47 degrees 17 minutes 20 seconds East, a distance of 75.43 feet; thence North 82 degrees 42 minutes 40 seconds East, a distance of 74.98 feet; thence south 58 degrees 17 minutes 20 seconds East, a distance of 84.58 feet; thence south 89 degrees 17 minutes 20 seconds East, a distance of 164.63 feet; thence south 18 degrees 17 minutes 40 seconds west, a distance of 824.19 feet to the northerly right of way line of Trunk Highway 5; thence North 85 degrees 54 minutes 50 seconds West along said northerly right of way, a distance of 33.08 feet; thence south 56 degrees 40 minutes 55 seconds West along said northerly right of way, a distance of 158.95 feet; thence North 85 degrees 54 minutes 50 seconds West along said northerly right of way, a distance of 518.22 feet to the west line of the Northwest Quarter of section 15, Township 116, Range 23; thence North 1 degree 37 minutes 50 seconds West along said west line of the Northwest Quarter, a distance of 9.12 feet to the point of beginning. which lies northwesterly of that particular northwesterly right-of-way line of Parcel 216, as shown on MINNESOTA DEPARTMENT OF TRANSPORTATION RIGHT OF WAY PLAT NO. 10-08, recorded as Document No. 265755 and as amended on MINNESOTA DEPARTMENT OF TRANSPORTATION RIGHT OF WAY PLAT NO. 10-14, recorded as Document NO. 279658, described as follows: commencing at the southwest corner of said section 10; thence on an assumed bearing of North 1 degree 56 minutes 40 seconds west, along the west line of the Southwest Quarter of said section 10, a distance of 401.19 feet, to a particular right-of-way line of said parcel 216 and the point of beginning of the line to be described; thence North 47 degrees 18 minutes 16 seconds East a distance of 175.14 feet, to an angle point in said right-of-way line; thence North 47 degrees 18 minutes 19 seconds East a distance of 22.71 feet, to a point of curvature in said right-of-way line; thence easterly a distance of 662.60 feet, along a non-tangential curve concave to the south having a radius of 633.04 feet and a central angle of 59 degrees 58 minutes 14 seconds and having a chord of 632.76 feet which bears North 77 degrees 17 minutes 27 seconds East to an angle point in said right-of-way line; thence North 56 degrees 16 minutes 30 seconds East, not tangent to said curve a distance of 114.28 feet, to an angle point in said right-of-way line; thence North 22 degrees 13 minutes 10 seconds East, along said right-of-way line, a distance of 116.13 feet and said line there terminating. 4 CITY OF CHANHASSEN STAFF REPORT PC DATE: May 2, 2006 a CC DATE: May 22, 2006 REVIEW DEADLINE: May 29, 2006 CASE #: 06-13 BY: AF, RG, LH, ML, JM, JS PROPOSAL:Galpin Crossing Twinhomes - Request for rezoning from Agricultural Estate District, A2, to Planned Unit Development — Residential, PUD -R; Preliminary plat approval creating 13 lots and one Outiot with a Variance for a private street and more than four homes accessing a private street; and Conditional Use Permit for development within the Bluff Creek Overlay District. LOCATION: North of West 78th Street and west of Galpin Boulevard APPLICANT: Rich Ragatz — Epic Development XVI, LLC 9820 Sky Lane Eden Prairie, MN 55347 (612)730-2814 ffagatz@earthlink.net PRESENT ZONING: A2, Agricultural Estate District 2020 LAND USE PLAN: Residential — Low Density (net density range 1.2 — 4.0 units per acre) ACREAGE: 6.09 DENSITY: gross - 1.97; net — 3.17 SUMMARY OF REQUEST: Request for a rezoning to Planned Unit Development — Residential to permit a 12 -unit (6 -structure) twin home development including a subdivision with a variance for the use of a private street and to permit more than 4 units to be accessed via the private street and a conditional use permit to permit development within the Bluff Creek Overlay District. LEVEL OF CITY DISCRETION IN DECISION-MAKING: The City has a relatively high level of discretion in approving rezonings, PUD's, and amendments to PUD's because the City is acting in its legislative or policy making capacity. A rezoning or PUD, and amendment thereto, must be consistent with the City's Comprehensive Plan. The City's discretion in approving or denying a preliminary plat is limited to whether or not the proposed plat meets the standards outlined in the Subdivision Regulations and Zoning Ordinance. If it meets these standards, the City must approve the preliminary plat. This is a quasi judicial decision. The City's discretion in approving or denying a variance is limited to whether or not the proposed project meets the standards in the Subdivision Ordinance for a variance. The City has a relatively high level of discretion with a variance because the applicant is seeking a deviation from established standards. This is a quasi judicial decision. Location Map Galpin Crossing Twinhomes Planning Case No. 06-13 NW Corner Highway 5 & Galpin Blvd. City of Chanhassen SUBJECT PROPERTY U m m ff(1 ce m lg8' W 78TH Street 5�Arbor�etum Boulevard 8 B Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 2 of 20 The City has limited discretion in approving or denying conditional use permits, based on whether or not the proposal meets the conditional use permit standards outlined in the Zoning Ordinance. If the City finds that all the applicable conditional use permit standards are met, the permit must be approved. This is a quasi judicial decision. PROPOSAUSUMMARY The applicant is proposing a 12 -unit (6 -building) twin home development on six acres of land. The site is constrained on the north by Bluff Creek and the Bluff Creek Primary zone, on the south by West 78"' Street, a collector street, to the east by Galpin Boulevard, a collector street, and to the west by Vasserman Ridge, a storm water pond and electric transmission line. Though fronting on a public right-of-way, direct lot access onto a collector street is prohibited. The proposed units will be accessed via a private street. City utilities are available to the site. Bluff Creek and a wetland encompass the northern portion of the site. The site was previously used as the field area for a golf driving range. Trees exist along the western property line and adjacent to Bluff Creek. The city has a sanitary sewer trunk main running across the northern portion of the property. The high point of the property lies in the southeast corner and slopes towards the wetland and Bluff Creek. The area south of West 78`s Street drains to the site via a culvert. The overhead power lines west of the west property line will remain. The property to the north is zoned Agricultural Estate District, but guided for residential — low density development, and contains a farmstead owned by Theodore Bentz. To the east is Galpin Boulevard and property owned by the City adjacent to Bluff Creek. To the south is West 78s' Street and property that has concept Planned Unit Development approval for either a "family fun center" or an office park. The property to the west contains electrical towers and transmission lines, a storm water pond and twin homes within the Vasserman Ridge development. Under a perfect development scenario, this parcel would be used for open space purposes and stormwater ponding in conjunction with the parcel south of West 78th Street. This development configuration would permit an intensification of the use of the parcel adjacent to Highway 5, specifically permitting higher impervious area. Staff is recommending approval of the development subject to the conditions of the staff report. APPLICABLE REGUATIONS Chapter 18 Subdivisions Chapter 20, Article II, Division 2, Amendments Chapter 20, Article IV, Conditional Use Permits Chapter 20, Article VI, Wetland Protection Chapter 20, Article VII, Shoreline Management Chapter 20, Article VIII, Planned Unit Development District Chapter 20, Article XXIX, Highway Corridor District Chapter 20, Article XXXI, Bluff Creek Overlay District Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 3 of 20 BACKGROUND On December 12, 2005, the Chanhassen City Council approved the concept planned unit development for a twin home (north of West 78'h Street) and office development (south of West 78th Street) project. On October 13, 2003, the Chanhassen City Council approved the Concept Planned Unit Development (PUD) review for development of a recreational center or office on the eight (8) acres south of West 78'h Street. The land north of West 780' Street, which was proposed for townhouse development, was not approved as part of the concept planned unit development. In 2000 and 2001, West 78th Street was constructed through the property, bisecting it into six and eight -acre parcels. Additionally, the city extended sanitary sewer for the BC -7 and BC -8 sanitary sewer subdistricts across the northern portion of the property. December 12, 1998, the Chanhassen City Council adopts the Bluff Creek Overlay District. December 1996, Bluff Creek Watershed Natural Resources Management Plan is completed. 1996, City Council adopts the Land Uses for the North 1995 Study Area, guiding this property for residential — low density use. In August 1995, the Highway 5 Corridor Land Use Design Study was completed. The bulk of the area was recommended for single-family residential. A portion of the Mills property (Arboretum Village site) was recommended for neighborhood convenience retail center, but only ancillary to office, institutional or multi -family residential. Highway 5 Corridor Design Standards adopted July 11, 1994. As part of the 1991 Comprehensive Plan, this property was included as part of the 1995 study area for determination of the land use of the property. On February 12, 1990, the Chanhassen City Council approved a zoning ordinance amendment making golf driving ranges interim uses in the A2 district. On November 16, 1987, the Chanhassen City Council approved a zoning ordinance amendment to permit golf driving ranges as a conditional use in the A2 zoning district and a conditional use permit for John Przymus for a golf driving range and miniature golf course at the subject property. On November 4, 1985, the Chanhassen City Council revoked the conditional use permit for a golf driving range at the northwest comer of Highway 5 and Galpin Boulevard due to non- compliance with the conditions of the conditional use permit. On December 19, 1983, the Chanhassen City Council approved a conditional use permit for a golf driving range at the northwest corner of Highway 5 and Galpin Blvd. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 4 of 20 Planned unit developments offer enhanced flexibility to develop a site through the relaxation of most normal zoning district standards. The use of the PUD in this instance is to create a twin - home development within the Bluff Creek Overlay District. In exchange for this enhanced flexibility, the City has the expectation that the development plan will result in a significantly higher quality and more sensitive proposal than would have been the case with the other more standard zoning districts including the provision of development design standards for the structures, which would not be possible under standard zoning. The proposed development provides a compatible development with the surrounding development, provides a transition of uses from the highway to the residential development to the north, and preserves the Bluff Creek corridor within a separate outlot. Alternatively under the Residential — Low Density land use, the project could development under the Mixed Low Density Development (R4) District or Residential Low and Medium Density (RLM) standards for twin homes. Area (sq. ft.) per unit Frontage (ft.) per unit Depth (ft.) Setbacks: Front Rear, Side (ft.) R4 10,000 50 125 30, 10, 30 RLM 7,260 50 100 25, 10, 25 PUDR 3,330 (Avg. 3,668) 45 74 50*, 0, 0 * Required setback from West 78'0 Street Based on the standards zoning ordinances, the developer may not be able to plat 12 units under the R4 zoning categories. At a minimum, the plat would have to be significantly revised to determine compliance. It appears more feasible under the RLM zoning. A twin home development assists in the furtherance of the following land use policies of the City of Chanhassen Comprehensive Plan: • Development will be encouraged within the MUSA line. • Encourage low density residential development in appropriate areas of the community in a manner that reinforces the character and integrity of existing single-family neighborhoods (the proposed twin homes would continue the development of twin homes in the southeast comer of the Vasserman Ridge development to the west of the site). • The plan should seek to establish sufficient land to provide a full range of housing opportunities. • The city will seek opportunities to provide transitions between different uses of different types. 0 Development should be phased in accordance with the ability of the city to provide services. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 5 of 20 A twin home project assists in the furtherance of the following housing policies of the City of Chanhassen Comprehensive Plan: • A balanced housing supply with housing available for people of all income levels. • A variety of housing types for people in all stages of the life cycle. • Housing development that respects the natural environment of the community while striving to accommodate the need for a variety of housing types and costs. The PUD provides enhanced architectural standards, but the environment preservation meets the standards required by City Code, which would be met by the other zoning options. If a Planned Unit Development is the preferred zoning, then the following design standards are recommended: Development Design Standards a. Intent The purpose of this zone is to create a twin home, PUD Residential zone. The use of the PUD zone is to allow for more flexible design standards while creating a higher quality and more sensitive proposal. All utilities are required to be placed underground. b. Permitted Uses The permitted uses within the neighborhood shall be 12 twin home and appropriate accessory structures. If there is a question as to whether or not a use meets the definition, the Community Development Director shall make that interpretation. The type of uses to be provided on Outlot B shall be low intensity neighborhood oriented accessory structures to meet daily needs of residents. Such uses may include development signage, common gardens, association gazebo, association maintenance shed, association picnic shelter or association play equipment. An encroachment agreement shall be required prior to construction within Outlot B. c. Setbacks The PUD ordinance requires setbacks from roadways and exterior property lines. The following table displays those setbacks. Standards West 78 Street and Gal in Blvd. 50 feet West Project Property line 30 feet Minimum Driveway length (to back of curb) 25 feet Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 6 of 20 Interior Lot Line (around each structure) 0 feet Hard Surface Coverage 30 percent for the entire development Wetland: Buffer and buffer setback 16.5 feet and 40 feet Bluff Creek Primary zone boundary 40 feet Building Height 35 feet d. Building Materials and Design • Building exterior material shall be a combination of hardiboard, vinyl or shake siding and brick, stone or stucco. • No two adjacent structures shall be of the same color scheme. • Colors used shall be varied across color tones. • Garage doors must have windows. • All units shall utilize minimum timberline 30 -year shingles. • Each unit shall have a minimum of one over story tree within its front landscape yard (between the house and the private street). • All mechanical equipment shall be screened with material compatible to the building, landscaping or decorative fencing. (It should be noted that the proposed development as shown on the plans, including buildings, driveways and private streets, has site coverage of 21 percent. Even if each of Lots 1 - 12 were covered completely in impervious surface, the development would only be at 27 percent site coverage.) SUBDIVISION REVIEW STREETSIACCESS The proposed access to this development lies approximately 660 feet west of Galpin Boulevard and 420 feet east of Vasserman Trail. Access to the units will be from a privately owned and maintained drive, which will be 90 feet in diameter at the entrance, and 20 feet wide through the remainder of the site. A hammerhead turnaround will be installed at the eastern terminus of the drive. The plans show that the private drive will be installed five feet from the right of way line. Snow removal from the private drive must not encroach into the public right-of-way. Access to the office site is proposed via West 78th Street which is a collector street within the City of Chanhassen. No direct vehicular access from individual lots to collector roadways is permitted. The internal access to the twin homes is via a private street. Private street easements are 30 feet with a 20 -foot pavement width for twin homes. A turnaround at the east end of the private street shall be required. Under any of the development alternatives, a private street for access purposes would be likely. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 7 of 20 Private Street In order to permit private streets, the city must find that the following conditions exist: (1) The prevailing development pattern makes it unfeasible or inappropriate to construct a public street. In making this determination, the city may consider the location of existing property lines and homes, local or geographic conditions and the existence of wetlands. (2) After reviewing the surrounding area, it is concluded that an extension of the public street system is not required to serve other parcels in the area, improve access, or to provide a street system consistent with the comprehensive plan. (3) The use of the private street will permit enhanced protection of the city's natural resources including wetlands and forested areas. Due to the constraints on the site, West 78s' Street and the Bluff Creek primary zone, it is not feasible to incorporate a public street within the development site. The use of a public street in this area would add unnecessary impervious surface and corresponding runoff to Bluff Creek. LANDSCAPINGJTREE PRESERVATION Tree canopy coverage and preservation calculations for the Galpin Crossing Twinhomes development are as follows: Total upland area (excluding wetlands) 238,018 SF Total canopy area (excluding wetlands) 33,490 SF Baseline canopy coverage 14% Minimum canopy coverage allowed 25% or 59,504 SF Proposed tree preservation 13% or 30,942 SF Developer does not meet minimum canopy coverage allowed. Replacement plantings are required for the difference between the existing canopy coverage and the minimum required. Replacement required (25%-14%) 26,181 SF or 24 trees The applicant is removing all existing trees. This is penalized by multiplying the area by 1.2 to calculate the required replacement plantings. Canopy coverage removed 2,380 SF Multiplier 1.2 Total replacement 2,856 SF Total number of trees to be planted 3 trees A total of 27 trees are required as replacement plantings for this development. A replacement planting plan has been submitted to the city for approval. It shows 30 trees. In addition, the applicant shall provide each home with a minimum of one tree in the front yard. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 8 of 20 Bufferyard requirements are as shown in the table: Landscaping Item Required Proposed Bufferyard B — South 17 overstory trees 18 overstory trees property line, 860' 34 understory trees 18 understory trees W. 78th Street 51 shrubs 54 shrubs Bufferyard B — East 4 Overstory trees 4 overstory trees property line, 210' 8 Understory trees 4 understory trees Gal in Blvd. 12 shrubs 12 shrubs Boulevard trees — W. 78th 22 overstory trees 15 overstory trees with St. —1 per 30 feet 50' spacing The applicant falls short on understory requirements within the bufferyards. The applicant has submitted less boulevard trees than ordinance requirements, but the spacing is preferable to 30 feet with the additional understory and shrub plantings. Staff recommends that plantings shown along the wetland and Bluff Creek Primary Corridor be selected from the plant list in the appendix of the management plan. These shall be native plantings that will serve to enhance the environmental features of the site. The restoration plan shall be submitted to the city for approval prior to City Council final approval. GRADING/DRAINAGE The developer has submitted a soil boring report indicating that approximately two feet of peat material exists south of the wetland. This material will be excavated and fill will be imported to grade the site. The lowest floor elevations for Lots 1 through 4 must be raised to a minimum elevation of 963.1, which is three feet above the high water level of the existing pond to the west within the Vasserman Ridge development. The lowest floor elevations for Lots 5 through 12 must be raised to a minimum elevation of 958.5, which is three feet above the high water level of the wetland, as indicated in the City of Chanhassen's 1994 Surface Water Management Plan. The final grading plan must identify an emergency overflow location and elevation for the proposed pond. The grading plan must be adjusted so that soil grades are minimum 2%. The proposed grading north and west of Lot 12 must be adjusted so that the drainage swale will not direct runoff toward the backs of Lots 11 and 12. The six foot high berm on the east side of the private drive must be shifted to the east to provide minimum five feet of boulevard space. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 9 of 20 The developer must ensure that the final grading plan does not include driveways sloping towards the homes on Lots 11 and 12. Driveway grades must be between 1.5% and 10% at any point within the driveway. The developer has submitted hydrology calculations for the proposed development for the proposed site for staff review. The developer must submit existing and proposed drainage maps. Staff will forward comments to the developer prior to final plat consideration. The developer has sized the pond to accommodate the existing runoff from the property south of West 786 Street. Storm water ponding must be constructed for the additional post -development runoff when the property south of West 781h Street is developed. Hydraulic calculations must be submitted with the final plat submittals and must include storm sewer inlet capacity analysis to verify that 100% of the runoff from a 10 -year event can be captured. RETAINING WALLS The developer does not propose to construct any retaining walls on the site. WETLANDS Two agturban wetlands exist on-site. Schoell & Madson, Inc. delineated the wetlands in June 2003. Basin 2 is a Type 2 wetland located in the west -central portion of the property, north of West 7816 Street. The wetland is dominated by reed canary grass and smartweed. Basin 3 is a Type 2 wetland located in the northern portion of the property. The wetland is dominated by reed canary grass, smartweed, trembling aspen and box elder. On August 29, 2003, City staff issued a Notice of Wetland Conservation Act Decision for a wetland exemption for Basin 2. Aerial photography was reviewed by the City and the wetland basins on either side of West 78h Street were not present prior to the construction of West 78th Street. The wetlands were found to be a result of blockage of drainage along the south side of West 78'6 Street and concentration of runoff on the downstream (north) end of the culvert under West 78h Street. A wetland buffer 16.5 to 20 feet in width (with a minimum average of 16.5 feet) must be maintained around Wetland 3. Wetland buffer areas should be preserved, surveyed and staked in accordance with the City's wetland ordinance. The applicant must install wetland buffer edge signs, under the direction of City staff, before construction begins and must pay the City $20 per sign. All structures must maintain a setback of at least 40 feet from the wetland buffer edge. EROSION AND SEDIMENT CONTROL All perimeter controls and inlet protections must remain in place until 70% of the area is permanently protected by vegetative cover. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 10 of 20 All area disturbed within 200 feet of Bluff Creek must be stabilized within 3 days. The plans should be revised to show all areas with 3:1 slopes or steeper that will be blanketed. A stable emergency overflow (EOF) for the ponds should be provided. The EOF could consist of riprap and geotextile fabric or a turf re -enforcement mat (a permanent erosion control blanket). A typical detail should be included in the plan. Energy dissipation should be provided for all inlets and outlets within 24 hours of installation Wimco-type or other comparable inlet controls should be used and installed within 24 hours of installation of the inlets. Typical building lot controls should be shown on the plan in a typical detail. These controls should include perimeter controls (silt fence), rock driveways, street sweeping, inlet control and temporary mulch after final grade and prior to issuing the Certificate of Occupancy (CO). The proposed storm water ponds should be used as a temporary sediment basin during mass grading. The pond should be excavated prior to disturbing up -gradient areas. Plans should show how the water will be diverted to the temporary basin. Berms and/or ditches may be needed to divert water to the pond, and temporary pond outlets are needed. The outlet could be a temporary perforated standpipe and rock cone. The plans should be revised to include a detail for the temporary pond outlet. An adequate easement for pond access for maintenance purposes is needed and should be shown on the plan. The proposed silt fence along Wetland 3 should be Type 2 silt fence, as specified in Chanhassen Standard Detail Plate 5300. Type 1 silt fence may be used for the remainder of the site. The grading plan should be revised to show the proposed silt fence following the grading limits for the site, including the 20 -foot grading setback from the primary corridor. The perimeter controls should be inspected by the city and the SWCD prior to grading. The grading plan should be revised to show the location of the proposed rock construction entrance. Street cleaning of soil tracked onto public streets shall include daily street scraping and street sweeping as -needed. SURFACE WATER MANAGEMENT FEES Water Quality Fees Because of the impervious surface associated with this development, the water quality fees for this proposed development are based on rates for duplexes of $1,800/acre. Based on the proposed developed area of approximately 6.1 acres, the water quality fees associated with this project are $10,980. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 11 of 20 Water Quantity Fees The SWMP has established a connection charge for the different land uses based on an average citywide rate for the installation of water quantity systems. This cost includes land acquisition, proposed SWMP culverts, open channels, and storm water ponding areas for runoff storage. Single- family residential developments have a connection charge of $2,900 per developable acre. This results in a water quantity fee of approximately $17,690 for the proposed development. SWMP Credits This project proposes the construction of one NURP ponds. The applicant will be credited for water quality where NURP basins are provided to treat runoff from the site. This will be determined upon review of the ponding and storm sewer calculations. Credits may also be applied to the applicant's SWMP fees for oversizing in accordance with the SWMP or the provision of outlet structures. No credit will be given for temporary pond areas. At this time, the estimated total SWMP fee, due payable to the City at the time of final plat recording, is $28,670. OTHER AGENCIES The owner/operator of the proposed development shall apply for and obtain permits from the appropriate regulatory agencies (e.g., Riley -Purgatory -Bluff Creek Watershed District, Minnesota Pollution Control Agency (NPDES Phase II Construction Site Permit), Minnesota Department of Natural Resources (for dewatering), Minnesota Department of Transportation, Minnesota Department of Health) and comply with their conditions of approval. ltYYlifYYl�.`i The developer proposes to extend lateral sanitary sewer from the existing Metropolitan Council interceptor line. The developer must obtain a permit from Metropolitan Council prior to utility installation. Lateral watermain will extend from the existing 18 -inch trunk within West 78`s Street. This connection will require cutting into West 78"' Street approximately eight feet from the curb. West 78`s Street must remain open during this utility connection. Advanced warning and traffic control measures required during this utility connection must comply with the latest edition of the Minnesota Manual on Uniform Traffic Control Devices. The develTer must submit a financial security with the final plat to ensure the restoration of West 78 Street and the bituminous trail. The lateral sanitary sewer and watermain shall be publicly owned and maintained. The developer will be responsible for extending lateral sewer and water service to the lots; therefore, the sanitary sewer and water connection charges will be waived. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 12 of 20 Each new lot is subject to the sanitary sewer and water hookup charges. These fees are collected with the building permit and are based on the rates in effect at the time of building permit application. The party applying for the building permit is responsible for payment of these fees. The lowest floor elevation of each unit must be shown on the utility plan. The developer proposes to install lateral storm sewer to capture runoff from the private drive and the existing culvert under West 78t' Street and convey the runoff to the proposed storm water basin. This storm sewer shall be privately owned and maintained since it does not serve public property. EASEMENTS AND RIGHT-OF-WAY The plan identifies a MNDOT drainage easement on the southern property line, on the west side of the parcel. The developer must obtain permission from MNDOT before performing any work within this easement. A sanitary sewer easement lies along the north side of the property and ranges from 40 to 60 feet wide. The sewer within this easement is the 42 -inch Metropolitan Council interceptor. The developer must obtain permission from Metropolitan Council to perform the proposed grading within this easement. The plans do not identify an easement for the overhead utility lines on the west side of the project. Prior to final plat consideration, the developer must show the easement on the plans. The building footprint must not lie within this easement. The developer must comply with any setback requirements the utility company imposes. A drainage and utility easement will be platted over all of Lot 13, Block 1, which is the common lot within the proposed development. Right-of-way for West 78th Street adjacent to this property ranges between 115 to 120 feet wide. Additional right-of-way is not required. Outlot A must be protected in perpetuity through the dedication of the outlot to the City of Chanhassen or by the recording of a conservation easement, to be approved by the City, over the entire Outlot A. PARKS AND OPEN SPACE Parks The property is situated within the park service areas of Sugarbush Neighborhood Park and the Chanhassen Recreation Center, a community park facility. No additional parkland dedication is required as a part of the Galpin Crossing proposal. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 13 of 20 Trails Two segments of the city's comprehensive trail plan are adjacent to and service the proposed development area—the West 78`" Street trail and Galpin Boulevard trail. In the absence of parkland dedication, it is recommended that Galpin Crossing pay full park dedication fees at the rate in force upon final platting. At today's rates, these fees would total $69,600 (12 units @ $5,800 each). COMPLIANCE TABLE Since the proposed development is a Planned Unit Development, the minimum requirements are those established as part of the development. CONDITIONAL USE PERMIT BLUFF CREEK OVERLAY DISTRICT The City of Chanhassen established the Bluff Creek Overlay District by ordinance in 1998 to protect the Bluff Creek Corridor, wetlands, bluffs and significant stands of mature trees through the use of careful site design and other low -impact practices. This parcel is partially encumbered by the Bluff Creek Overlay District. If any alterations are proposed on property within the Bluff Creek Overlay District, a conditional use permit must be obtained prior to alterations occurring. No alterations are allowed within the primary corridor or within the fust 20 feet of the setback from the primary corridor. Grading is proposed within the first 20 feet of the setback from the primary corridor north of Lots 5, 6 and 9 through 12, Block 1. The grading plan should be revised to eliminate grading within the first 20 feet of the setback from the primary corridor. All structures must maintain a minimum 40 -foot setback from the primary corridor. The proposed structure on Area (sq. ft.) Width (ft.) Depth (ft.) Lot 1 3,735 45 83 Lot 2 3,735 45 83 Lot 3 3,330 45 74 Lot 4 3,330 45 74 Lot 5 3,735 45 83 Lot 6 3,735 45 83 Lot 7 3,735 45 83 Lot 8 3,735 45 83 Lot 9 3,735 45 83 Lot 10 3,735 45 83 Lot 11 3,735 45 83 Lot 12 3,735 45 83 Lot 13 (Outlot B) 120,778 Outlot A 100,807 TOTAL 265,595 CONDITIONAL USE PERMIT BLUFF CREEK OVERLAY DISTRICT The City of Chanhassen established the Bluff Creek Overlay District by ordinance in 1998 to protect the Bluff Creek Corridor, wetlands, bluffs and significant stands of mature trees through the use of careful site design and other low -impact practices. This parcel is partially encumbered by the Bluff Creek Overlay District. If any alterations are proposed on property within the Bluff Creek Overlay District, a conditional use permit must be obtained prior to alterations occurring. No alterations are allowed within the primary corridor or within the fust 20 feet of the setback from the primary corridor. Grading is proposed within the first 20 feet of the setback from the primary corridor north of Lots 5, 6 and 9 through 12, Block 1. The grading plan should be revised to eliminate grading within the first 20 feet of the setback from the primary corridor. All structures must maintain a minimum 40 -foot setback from the primary corridor. The proposed structure on Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 14 of 20 Lot 12, Block 1 does not meet the 40 -foot setback from the primary corridor. The plans should be revised to show that the structure on Lot 12, Block 1 meets the required 40 -foot primary corridor setback. The applicant has proposed placing the portions of the site within the Bluff Creek Overlay District primary corridor into an outlot (Outlot A). Outlot A must be protected in perpetuity through the dedication of the outlot to the City of Chanhassen or by the recording of a conservation easement, to be approved by the City, over the entire Outlot A. Staff recommends that the Chanhassen City Council adopt the following three motions based on the findings of fact attached to this staff report: A. "The Chanhassen City Council approves the Planned Unit Development rezoning the property within the Galpin Crossing Twinhomes project from A2, Agricultural Estate District, to PUD -R, Planned Unit Development — Residential incorporating the development design standards contained in this staff report." B. "Me Chanhassen City Council approves the Preliminary Plat creating 4.210 lots and 2 outlots with a variance for the use of a private street and for more than four homes accessed via a private street, plans prepared by Ryan Engineering, dated March 16, 2006, revised April 19, 2006, subject to the following conditions: 1. Designate Lot 13 as Outlot B and delete lots 3 and 4. 2. A cross -access and maintenance agreement shall be recorded over the private street. 3. A 10 -foot clear space must be maintained around fire hydrants, i.e., street lamps, trees, shrubs, bushes, Xcel Energy, Qwest, cable TV and transformer boxes. This is to ensure that fire hydrants can be quickly located and safely operated by firefighters. Pursuant to Chanhassen City Ordinance #9-1. 4. No burning permits shall be issued for trees to be removed. Trees and shrubs must either be removed from site or chipped. 5. Yellow curbing and "No Parking Fire Lane" signs will be required. Contact Chanhassen Fire Marshal for exact location of yellow curbing and locations of signs to be installed. Pursuant to Minnesota State Fire Code Section 503.3 and 503.4. 6. Dead end fire apparatus access roads in excess of 150 feet in length shall be provided with an approved area for turning around fire apparatus. Submit tum around designs to City Engineer and Chanhassen Fire Marshal for approval. Pursuant to Minnesota State Fire Code Section 503.2.5. (Exception: the code official is authorized to increase the dimension of 150 feet where the building is equipped throughout with an approved automatic fire sprinkler Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 15 of 20 system installed in accordance with Minnesota State Fire Code Section 903.3.1.1, 903.3.1.2 or 903.3.1.3). 7. Fire apparatus access roads and water supply for fire protection is required to be installed. Such protections shall be installed and made serviceable prior to and during the time of construction except when approved alternate methods of protection are provided. Pursuant to Minnesota State Fire Code Section 501.4. 8. Fire apparatus access roads shall be designed and maintained to support the imposed load of fire apparatus and shall be serviced so as to provide all-weather driving capabilities. Pursuant to Minnesota State Fire Code Section 503.2.3. 9. The new proposed street will be required to have a street name. Submit proposed to street name to Chanhassen Building Official and Chanhassen Fire Marshal for review and approval. Pursuant to Minnesota State Fire Code Section 503.3. 10. An additional fire hydrant will be required. Maximum spacing is 300 feet. Contact Chanhassen Fire Marshal for exact location of required additional fire hydrant. 11. Accessibility will have to be provided to all portions of the development and a percentage of the units may also be required to be accessible or adaptable in accordance with Minnesota State Building Code Chapter 1341. Further information is needed to determine these requirements. 12. The buildings are required to be protected with an automatic sprinkler system if they are over 8,500 sq. ft. in floor area. For the purposes of this requirement property lines do not constitute separate buildings and the area of basements and garages is included in the floor area threshold. 13. The buildings will be required to be designed by an architect and engineer as determined by the Building Official. 14. A final grading plan and soils report must be to the Inspections Division before building permits can be issued. 15. Walls and projections within 3 feet of property lines are required to be of one-hour fire -resistive construction. 16. Each lot must be provided with separate sewer and water services. 17. The developer and or their agent shall meet with the Inspections Division as early as possible to discuss plan review and permit procedures. 18. A wetland buffer 16.5 to 20 feet in width (with a minimum average of 16.5 feet) shall be maintained around Wetland 3. Wetland buffer areas shall be preserved, surveyed and staked in accordance with the City's wetland ordinance. The applicant shall install wetland buffer edge signs, under the direction of City staff, before construction begins and shall pay the City $20 per sign. All structures shall maintain a setback of at least 40 feet from the wetland buffer edge. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 16 of 20 19. The grading plan shall be revised to eliminate grading within the first 20 feet of the setback from the primary corridor. All structures shall maintain a minimum 40 -foot setback from the primary corridor. The plans shall be revised to show that the structure on Lot 12, Block 1 meets the required 40 -foot primary corridor setback. 20. Outlot A shall be protected in perpetuity through the dedication of the outlot to the City of Chanhassen or by the recording of a conservation easement, to be approved by the City, over the entire Oudot A. 21. All perimeter controls and inlet protections shall remain in place until 70% of the area is permanently protected by vegetative cover. 22. All area disturbed within 200 feet of Bluff Creek shall be stabilized within 3 days. 23. The plans shall be revised to show all areas with 3:1 slopes or steeper that will be blanketed. 24. A stable emergency overflow (EOF) for the ponds shall be provided. The EOF could consist of riprap and geotextile fabric or a turf re -enforcement mat (a permanent erosion control blanket). A typical detail shall be included in the plan. 25. Energy dissipation shall be provided for all inlets and outlets within 24 hours of installation 26. Wimco-type or other comparable inlet controls shall be used and installed within 24 hours of installation of the inlets. 27. Typical building lot controls shall be shown on the plan in a typical detail. These controls should include perimeter controls (silt fence), rock driveways, sweet sweeping, inlet control and temporary mulch after final grade and prior to issuing the Certificate of Occupancy (CO). 28. The proposed storm water ponds shall be used as a temporary sediment basin during mass grading. The pond shall be excavated prior to disturbing up -gradient areas. Plans shall show how the water will be diverted to the temporary basin. Berms and/or ditches may be needed to divert water to the pond, and temporary pond outlets are needed. The outlet could be a temporary perforated standpipe and rock cone. The plans shall be revised to include a detail for the temporary pond outlet. 29. An adequate easement for pond access for maintenance purposes is needed and shall be shown on the plan. 30. The proposed silt fence along Wetland 3 shall be Type 2 silt fence, as specified in Chanhassen Standard Detail Plate 5300. Type 1 silt fence may be used for the remainder of the site. The grading plan shall be revised to show the proposed silt fence following the grading limits for the site, including the 20 -foot grading setback from the primary corridor. The perimeter controls shall be inspected by the city and the SWCD prior to grading. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 17 of 20 31. The grading plan shall be revised to show the location of the proposed rock construction entrance. 32. Street cleaning of soil tracked onto public streets shall include daily street scraping and street sweeping as -needed. 33. The estimated total SWMP fee based on 2006 fees, due payable to the City at the time of final plat recording, is $28,670. 34. The owner/operator of the proposed development shall apply for and obtain permits from the appropriate regulatory agencies (e.g., Riley -Purgatory -Bluff Creek Watershed District, Minnesota Pollution Control Agency (NPDES Phase II Construction Site Permit), Minnesota Department of Natural Resources (for dewatering), Minnesota Department of Transportation, Minnesota Department of Health) and comply with their conditions of approval. 35. At least one tree is required in each front yard. 36. A landscape plan denoting areas of sod shall be submitted to the city. Common areas must be sodded and provided with irrigation. 37. Native plantings will be required along the northern edge of the development parallel to the wetland and Bluff Creek. These plantings shall be species selected from the Bluff Creek Management Plan planting list. A revised landscape plan shall be submitted prior to final plat approval to the city for approval. 38. Applicant shall increase understory plantings with the bufferyard areas to meet the minimum number of plantings required." 39. The developer must obtain permission from MNDOT before performing any work within the MNDOT easement. 40. The developer must obtain permission from Metropolitan Council to perform the proposed grading within the sanitary sewer interceptor easement. 41. Prior to final plat consideration, the developer must show the overhead utility easement on the plans. 42. The building footprint must not lie within the overhead utility easement. 43. The developer must comply with any setback requirements the overhead utility company imposes. 44. The lowest floor elevations for Lots 1 through 4 must be raised to a minimum elevation of 963.1'. This condition may require a different housing type (SE, LO, R). 45. The lowest floor elevations for Lots 5 through 12 must be raised to a minimum elevation of 958.5'. Developer must modify 100 -year elevation for Bluff Creek. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 18 of 20 46. The final grading plan must identify an emergency overflow location and elevation for the proposed pond. 47. The grading plan must be adjusted so that soil grades are minimum 2%. 48. The proposed grading north and west of Lot 12 must be adjusted so that the drainage swale will not direct runoff toward the backs of Lots 11 and 12. 49. The six foot high berm on the east side of the private drive must be shifted to the east to provide minimum five feet of boulevard space. 50. The developer must ensure that the final grading plan does not include driveways sloping towards the homes on Lots 11 and 12. 51. Driveway grades must be between 1.5% and 10% at any point within the driveway. 52. The developer must submit existing and proposed drainage maps. 53. Hydraulic calculations must be submitted with the final plat submittals and must include storm sewer inlet capacity analysis to verify that 100% of the runoff from a 10 -year event can be captured. 54. Prior to utility installation the developer must obtain a permit from Metropolitan Council to connect to the interceptor sewer. 55. The storm sewer installed with this project shall be privately owned and maintained since it does not serve public property. 56. Advanced warning and traffic control measures required during the watermain connection must comply with the latest addition of the Minnesota Manual on Uniform Traffic Control Devices. 57. The developer must submit a financial security with the final plat to ensure the restoration of West 78m Street and the bituminous trail. 58. Each new lot is subject to the sanitary sewer and water hookup charges. These fees are collected with the building permit and are based on the rates in effect at the time of building permit application. The party applying for the building permit is responsible for payment of these fees. 59. The lowest floor elevation of each unit must be shown on the utility plan. 60. Snow removal from the private drive must not encroach into the public right of way. 61. Storm sewer manhole at west driveway entrance should include a 3' sump. 62. The developer shall pay full park fees in effect at the time of final plat recording." Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 19 of 20 C. "The Chanhassen City Council approves a Conditional Use Permit to permit development within the Bluff Creek Overlay District subject to the following conditions: 1. The grading plan shall be revised to eliminate grading within the first 20 feet of the setback from the primary corridor. All structures shall maintain a minimum 40 -foot setback from the primary corridor. The plans shall be revised to show that the structure on Lot 12, Block 1 meets the required 40 -foot primary corridor setback. 2. Outlot A shall be protected in perpetuity through the dedication of the outlet to the City of Chanhassen or by the recording of a conservation easement, to be approved by the City, over the entire Outlot A." ATTACHMENTS I. Findings of Fact and Recommendation. 2. Development Review Application. 3. Reduced Copy Existing Conditions. 4. Reduced Copy Preliminary Plat. 5. Reduced Copy Preliminary Grading and SWPPP Plan. 6. Reduced Copy Preliminary Site and Utility Plan. 7. Reduced Copy Preliminary Tree Inventory/Landscape Plan. 8. Reduced Copy Preliminary Buffer Yard Planting Plan. 9. Email from Larry Martin to Bob Generous dated April 25, 2006. 10. Email from Lance Erickson to Bob Generous dated April 26, 2006 11. Affidavit of Mailing Notice. g9plan\2006 planning cases\06-13 galpin crossing minhomes\slaff reporl.doc CITY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES, MINNESOTA FINDINGS OF FACT AND RECOMMENDATION IN RE: Application of Epic Development XVI, LLC request for rezoning from Agricultural Estate District, A2, to Planned Unit Development — Residential, PUD -R; Preliminary plat approval creating 13 lots and one Outlot with a Variance for a private street and more than four homes accessing a private street; and Conditional Use Permit for development within the Bluff Creek Overlay District. On May 2, 2006, the Chanhassen Planning Commission met at its regularly scheduled meeting to consider the application of Epic Development XVI, LLC for a Planned Unit Development to permit a 12 -unit twin home project. The Planning Commission conducted a public hearing on the proposed Planned Unit Development preceded by published and mailed notice. The Planning Commission heard testimony from all interested persons wishing to speak and now makes the following: FINDINGS OF FACT The property is currently zoned Agricultural Estate District, A2. 2. The property is guided in the Land Use Plan for Residential — Low Density. The legal description of the property is: See Exhibit A. 4. The Zoning Ordinance directs the Planning Commission to consider six (6) possible adverse affects of the proposed amendment. The six (6) affects and our findings regarding them are: a. The proposed action has been considered in relation to the specific policies and provisions of and has been found to be consistent with the official City Comprehensive Plan. b. The proposed use is or will be compatible with the present and future land uses of the area. c. The proposed use conforms with all performance standards contained in the Zoning Ordinance. d. The proposed use will not tend to or actually depreciate the area in which it is proposed. e. The proposed use can be accommodated with existing public services and will not overburden the city's service capacity. L Traffic generation by the proposed use is within capabilities of streets serving the property. 5. Subdivision. a. The proposed subdivision is consistent with the zoning ordinance; b. The proposed subdivision is consistent with all applicable city, county and regional plans including but not limited to the city's comprehensive plan; c. The physical characteristics of the site, including but not limited to topography, soils, vegetation, susceptibility to erosion and siltation, susceptibility to flooding, and storm water drainage are suitable for the proposed development; d. The proposed subdivision makes adequate provision for water supply, storm drainage, sewage disposal, streets, erosion control and all other improvements required by this chapter; e. The proposed subdivision will not cause significant environmental damage; f. The proposed subdivision will not conflict with easements of record; and g. The proposed subdivision is not premature. A subdivision is premature if any of the following exists: 1). Lack of adequate storm water drainage; 2). Lack of adequate roads; 3). Lack of adequate sanitary sewer systems; and 4). Lack of adequate off-site public improvements or support systems. 6. Variance (Private Street and more than four units on a private street). a. The hardship is not a mere b. The hardship is caused by the particular physical surroundings, shape or typographical conditions of the land_ c. The conditions upon which the request is based are unique and not generally applicable to other property. d. The granting of the variance will not be substantially detrimental to the public welfare and is in accord with the purpose and intent of this chapter, the zoning ordinance and comprehensive plan. Ea Conditional Use Permit. When approving a conditional use permit, the City must determine the capability of a proposed development with existing and proposed uses. The general issuance standards of the conditional use Section 20-232, include the following 12 items: a. The proposed development will not be detrimental to or endanger the public health, safety, comfort, convenience or general welfare of the neighborhood or the city. b. The proposed development will be consistent with the objectives of the city's comprehensive plan and the zoning ordiance. c. The proposed development will be designed, constructed, operated and maintained so to be compatible in appearance with the existing or intended character of the general vicinity and will not change the essential character of that area. d. The proposed development will not be hazardous or disturbing to existing or planned neighboring uses. e. The proposed development will be served adequately by essential public facilities and services, including streets, police and fire protection, drainage structures, refuse disposal, water and sewer systems and schools; or will be served adequately by such facilities and services provided by the persons or agencies responsible for the establishment of the proposed use. L The proposed development will not create excessive requirements for public facilities and services and will not be detrimental to the economic welfare of the community. g. The proposed development will not involve uses, activities, processes, materials, equipment and conditions of operation that will be detrimental to any persons, property or the general welfare because of excessive production of traffic, noise, smoke, fumes, glare, odors, rodents, or trash. h. The proposed development will have vehicular approaches to the property which do not create traffic congestion or interfere with traffic or surrounding public thoroughfares. i. The proposed development will not result in the destruction, loss or damage of solar access, natural, scenic or historic features of major significance. j. The proposed development will be aesthetically compatible with the area. k. The proposed development will not depreciate surrounding property values. 1. The proposed development will meets standards prescribed for certain uses as provided in this article. 8. The planning report #06-13 dated May 2, 2006, prepared by Robert Generous, et al, is incorporated herein. 3 RECONS MNDATION The Planning Commission recommends that the City Council approve the Planned Unit Development for Galpin Crossing Twinhomes. ADOPTED by the Chanhassen Planning Commission this 2nd day of May, 2006. CHANHASSEN PLANNING COMMISSION 1w Its Chairman 0 PARCEL A: That part of the southwest Quarter of the southwest Quarter of section 10, Township 116, Range 23 and the Northwest Quarter of the Northwest Quarter of scction 15, Township 116, Range 23, Carver County, Minnesota, described as follows: Beginning at the southwest comer of said section 10; thence on as assumed bearing of North 1 degree 56 minutes 40 seconds west along the West line of said Southwest Quarter, a distance of 1026.89 feet; thence south 79 degrees 32 minutes 20 seconds East, a distance of 177.77 feet; thence south 86 degrees 32 minutes 20 seconds East, a distance of 100.40 feet; thence south 78 degrees 32 minutes 20 seconds East, a distance of 194.14 feet; thence south 74 degrees 32 minutes 20 seconds East, a distance of 150.00 feet; thence south 47 degrees 17 minutes 20 seconds East, a distance of 75.43 feet; thence North 82 degrees 42 minutes 40 seconds East, a distance of 74.98 feet; thence south 58 degrees 17 minutes 20 seconds East, a distance of 84.58 feet; thence south 89 degrees 17 minutes 20 seconds East, a distance of 164.63 feet; thence south 18 degrees 17 minutes 40 seconds west, a distance of 824.19 feet to the northerly right of way line of Trunk Highway 5; thence North 85 degrees 54 minutes 50 seconds West along said northerly right of way, a distance of 33.08 feet; thence south 56 degrees 40 minutes 55 seconds West along said northerly right of way, a distance of 158.95 feet; thence North 85 degrees 54 minutes 50 seconds West along said northerly right of way, a distance of 518.22 feet to the west line of the Northwest Quarter of section 15, Township 116, Range 23; thence North 1 degree 37 minutes 50 seconds West along said west line of the Northwest Quarter, a distance of 9.12 feet to the point of beginning. which lies northwesterly of that particular northwesterly right-of-way line of Parcel 216, as shown on MINNESOTA DEPARTMENT OF TRANSPORTATION RIGHT OF WAY PLAT NO. 10-08, recorded as Document No. 265755 and as amended on MINNESOTA DEPARTMENT OF TRANSPORTATION RIGHT OF WAY PLAT NO. 10-14, recorded as Document NO. 279658, described as follows: commencing at the southwest corner of said section 10; thence on an assumed bearing of North 1 degree 56 minutes 40 seconds west, along the west line of the Southwest Quarter of said section 10, a distance of 401.19 feet, to a particular right-of-way line of said parcel 216 and the point of beginning of the line to be described; thence North 47 degrees 18 minutes 16 seconds East a distance of 175.14 feet, to an angle point in said right-of-way line; thence North 47 degrees 18 minutes 19 seconds East a distance of 22.71 feet, to a point of curvature in said right-of-way line; thence easterly a distance of 662.60 feet, along a non-tangential curve concave to the south having a radius of 633.04 feet and a central angle of 59 degrees 58 minutes 14 seconds and having a chord of 632.76 feet which bears North 77 degrees 17 minutes 27 seconds East to an angle point in said right-of-way line; thence North 56 degrees 16 minutes 30 seconds East, not tangent to said curve a distance of 114.28 feet, to an angle point in said right-of-way line; thence North 22 degrees 13 minutes 10 seconds East, along said right-of-way line, a distance of 116.13 feet and said line there terminating. MIN 1 CITY OF CHANHASSEN 7700 Market Boulevard — P.O. Box 147 Chanhassen, MN 55317 — (952) 227-1100 DEVELOPMENT REVIEW APPLICATION Name and Address: Email: Planning Case No. 01° —13 CITY OF CHANHASSEN RECEIVED MAR 1 7 2006 nuA1JYACC9u ci ANwun MOT Owner Name and Address: - 54M6 s?5 APP"e-6,vT — Contact: Phone: Fax: Email: NOTE: Consultation with City staff is required prior to submittal, including review of development plans Comprehensive Plan Amendment Conditional Use Permit (CUP) qvS Interim Use Permit (IUP) Non -conforming Use Permit Planned Unit Development' Rezoning Sign Permits Sign Plan Review Site Plan Review (SPR)' XSubdivision` 600 # (!'S y I ' / Temporary Sales Permit Vacation of Right-of-Way/Easements (VAC) X Variance (VAR) 200, Wetland Alteration Permit (WAP) Zoning Appeal Zoning Ordinance Amendment X Notification Sign — $200 (City to install and remove) X Escro for Filing Fees/Attorney Cost`* $5 /SPRNACNAR/WAP/Metes & Bounds - $450 Minor SUB TOTAL FEE $ 1(05 500 An additional fee of $3.00 per address within the public hearing notification area will be invoiced to the applicant prior to the public hearing. 'Sixteen (16) full-size folded copies of the plans sfbe su - including an 8'/z" X 11" reduced copy for each plan sheet along with 6 digital copy in TI F -Group 4 ('.tif) format. `*Escrow will be required for other applications through the development contract. Building material samples must be submitted with site plan reviews. NOTE: When multiple applications are processed, the appropriate fee shall be charged for each application. SCANNW PROJECT NAME: Gm -PW Cf (of )NCS- —FWINh{OY1n-S LOCATION: 01)mkxSi Cop1y-,fZ 6-F W, (!�-AI-PfN &VD �N?�iRS�Ci{o)J LEGAL DESCRIPTION: SEF ATTivc. TOTAL ACREAGE: a9 A"4 5 WETLANDS PRESENT: X YES NO PRESENT ZONING: )�GP J!' LrLTt (Rf4L E5T6N i r!LzvT / !i a REQUESTED ZONING: t -A,4j N 60 �W lT D6VC&0 Py)/ 6w -r ` \ PRESENT LAND USE DESIGNATION: Re�6tDEAII-bki— - LOW Qg"i!`I �J•'a - 4 lam// 1 REQUESTED LAND USE DESIGNATION: E0Lt DFNTI AL - LDv1 Duy6 0 Y REASON FOR REQUEST: k15-5) 0i-/U7!/9L ` t.(W)N HOW11— (6V�y"e-U"% This application must be completed in full and be typewritten or clearly printed and must be accompanied by all information and plans required by applicable City Ordinance provisions. Before filing this application, you should confer with the Planning Department to determine the specific ordinance and procedural requirements applicable to your application. A determination of completeness of the application shall be made within 15 business days of application submittal. A written notice of application deficiencies shall be mailed to the applicant within 15 business days of application. This is to certify that I am making application for the described action by the City and that I am responsible for complying with all City requirements with regard to this request. This application should be processed in my name and I am the party whom the City should contact regarding any matter pertaining to this application. I have attached a copy of proof of ownership (either copy of Owner's Duplicate Certificate of Title, Abstract of Title or purchase agreement), or I am the authorized person to make this application and the fee owner has also signed this application. I will keep myself informed of the deadlines for submission of material and the progress of this application. I further understand that additional fees may be charged for consulting fees, feasibility studies, etc. with an estimate prior to any authorization to proceed with the study. The documents and information I have submitted are true and correct to the best of my knowledge G1pLAMforms0evelopment Review Appliwtion.DOC J/11, �-- Date 1517 6 Date Rev. 12/05 SCANNED 'ARCEL A: That part of the southwest Quarter of the southwest Quarter of section 10, Township 116, Range 23 and the Northwest Quarter of the Northwest Quarter of section 15, Township 116, Range 23, Carver County, Minnesota, described as follows: Beginning at the southwest comer of said section 10; thence on as assumed bearing of North 1 degree 56 minutes 40 seconds west along the West line of said Southwest Quarter, a distance of 1026.89 feet; thence south 79 degrees 32 minutes 20 seconds East, a distance of 177.77 feet; thence south 86 degrees 32 minutes 20 seconds East, a distance of 100.40 feet; thence south 78 degrees 32 minutes 20 seconds East, a distance of 194.14 feet; thence south 74 degrees 32 minutes 20 seconds East, a distance of 150.00 feet; thence south 47 degrees 17 minutes 20 seconds East, a distance of 75.43 feet; thence North 82 degrees 42 minutes 40 seconds East, a distance of 74.98 feet; thence south 58 degrees 17 minutes 20 seconds East, a distance of 84.58 feet; thence south 89 degrees 17 minutes 20 seconds East, a distance of 164.63 feet; thence south 18 degrees 17 minutes 40 seconds west, a distance of 824.19 feet to the northerly right of way line of Trunk Highway 5; thence North 85 degrees 54 minutes 50 seconds West along said northerly right of way, a distance of 33.08 feet; thence south 56 degrees 40 minutes 55 seconds West along said northerly right of way, a distance of 158.95 feet; thence North 85 degrees 54 minutes 50 seconds West along said northerly right of way, a distance of 518.22 feet to the west fine of the Northwest Quarter of section 15, Township 116, Range 23; thence North 1 degree 37 minutes 50 seconds West along said west line of the Northwest Quarter, a distance of 9.12 feet to the point of beginning. which lies northwesterly of that particular northwesterly right-of-way line of Parcel 216, as shown on MINNESOTA DEPARTMENT OF TRANSPORTATION RIGHT OF WAY PLAT NO. 10- 08, recorded as Document No. 265755 and as amended on MINNESOTA DEPARTMENT OF TRANSPORTATION RIGHT OF WAY PLAT NO. 10-14, recorded as Document NO. 279658, described as follows: commencing at the southwest comer of said section 10; thence on an assumed bearing of North 1 degree 56 minutes 40 seconds west, along the west he of the Southwest Quarter of said section 10, a distance of 401.19 feet, to a particular right-of-way line of said parcel 216 and the point of beginning of the line to be described; thence North 47 degrees 18 minutes 16 seconds East a distance of 175.14 feet, to an angle point in said right-of-way fine; thence North 47 degrees 18 minutes 19 seconds East a distance of 22.71 feet, to a point of curvature in said right-of-way line; thence easterly a distance of 662.60 feet, along a non-tangential curve concave to the south having a radius of 633.04 feet and a central angle of 59 degrees 58 minutes 14 seconds and having a chord of 632.76 feet which bears North 77 degrees 17 minutes 27 seconds East to an angle point in said right-of-way line; thence North 56 degrees 16 minutes 30 seconds East, not tangent to said curve a distance of 114.28 feet, to an angle point in said right-of-way line; thence North 22 degrees 13 minutes 10 seconds East, along said right-of-way line, a distance of 116.13 feet and said line there terminating. 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It S (I f0 1 I' U U L • sx e 4 Ig id ILII I goon I i \\\ ei6 ';q_I `y?ice v d N \ I1� 41 1 litF— m • Si � 55 7r LL \ O \ H h \ O 5 ^5• w1' gE R 0 Cc Z� m aCO Co EL Tui { Q�3 s O Y E30:e 1� j rr44 � Cd m .230 .�� Y a n. u n alar i 11 . 11 Y 2211 Y W W W W / =1T--� -- — 1— o J O Galpin Crossing Twinhomes Generous, Bob From: Larry Martin [Immartin@mchsi.com] Sent: Tuesday, April 25, 2006 9:51 AM To: Generous, Bob Cc: Tom & Sharon Krause Subject: Galpin Crossing Twinhomes Page 1 of 2 I want to express my concerns pertaining to the proposed Galpin Crossing Twinhomes. I support the developer's right to develop this parcel and want to work with them to insure that the development corresponds with neighborhood character. Please pass my comments on to commission members, council members and the developer. I think Chanhassen has been successful in creating neighborhood communities. I fail to see how this development creates any community or provides "space" for the eventual occupants. Children would have little play room and would be very close to a street that is already busy and destined to get much busier. do not know the standards for density of units, but these units appear to be very close to each other. Although the entire parcel is 6 acres, the structures appear to be on an area about 1.5 acres. This would be a density of 8 units per acre and that includes driveways. My math may not be the way these development densities are calculated, but placing structure like was done for units 3 and 4 seems to be pushing good development. Is a variance neede between lots 2 and 3. The original proposal had only 10 units. Unit 3 would appear to have its roof corner about 30' from the High Voltage Transmission Line. Are there any guidelines on this? It is possible that Chanhassen will eventually install a Wi-Fi network. How will this placement affect connectivity? Will there be a need for a 4 way stop sign for the twinhome's private road and the proposed office complex? Will 78th Street have a median and turn lane, as left turns into the office complex will be the norm? I have had experience in the past where a developer gets approval for a parcel and a separate builder finishes out construction. The result was not a pleasing architectural appearance or consistent in appearance or features. Will the units be owner occupied or offered as rental units? Will they be covered by an association or left for individual maintenance and free to be painted, landscaped and maintained individually? If they are individually owned who maintains the required landscaping. Who maintains the extensive Outlot A.? Will the 4 willow trees along the west border be saved, or will construction of units 1 and 2 cause them to be excessed. What are the requirements to have architecture be consistent with adjacent property? Will the soil conditions support this many structures? I am not against the development. My hope is that it can be accomplished in a manner that will enhance the neighborhood and that will be looked upon as a community asset 10 years from now. Thanks for your ear. Respectfully, 4/25/2006 Galpin Crossing Twinhomes Larry Martin 4/25/2006 Page 2 of 2 Page I of 2 Generous, Bob From: ELANCE389@aol.com Sent: Wednesday, April 26, 2006 11:53 AM To: Generous, Bob Cc: kraushausl @msn.com; Igriffith@sunsrce.com; LMMartin@mchsi.com; m.magnuson@mchsi.com; bjelseth@msn.com; rpamperim@msn.com; mn05gelino@yahoo.com; jimchmura@hotmail.com; tee_hee@msn.com; jerry.wolfe@mchsi.com; mishields2@mchsi.com; TAnder8685@aol.com; rpdebol@mchsi.com Subject: Galpin Crossing Twinhomes I live at 7735 Vasserman Trail, across the pond west of the proposed development, and cannot attend the meeting on May 2, 2006. Please pass on my concerns to the planning commission, the city council, and the developer. The original plan called for 10 units, but the planning commission suggested a different use, i.e. Day Care etc. The current plan stays with twinhomes, and adds two more units, increasing density in an already crowded area. This leads to some of the following effects: ' Unit 12 seems to be built on an easement ' Most have little or no back yards ' Units 1, 2, 3, & 4 appear to be built almost on the west property line, and right under or near the High Voltage Line. Any easement problem here? Granting a Variance for a private street is very unusual for a city the quality of Chanhassen. Some of the concerns associated with this are: A homeowners association will be necessary, as the private street will have to be maintained by the 12 unit owners. They will have snowplowing, spring cleaning, seal coating and repairs which are usually provided by the city. A homeowners association of only 12 owners does not sustain itself economically. With a narrow private street, there would be need for guest parking of at least 6 stalls. None is proposed, as there is no room in the plan. Units 1, 2, 5, & 6 may not have enough set back room to park in their own driveway. There should be " Finding of Fact " for this variance. Units 1 thru 6, are located in an area that has standing water after rainstorms. Piping water from the south side of west 78th street to a newly created pond may not be enough to prevent flooding. Has this plan been evaluated to withstand a 100 Year Rainstorm? In summary, it appears that the construction of west 78th street does not allow enough room on the property to accommodate the type of development proposed. I am in favor of the owners right to make use of the property, but feel a different development should be considered. Is the city staff recommending this to the planning commission? A small association, with high monthly dues, sitting right on west 78th street, crowded 4/26/2006 Page 2 of 2 into a small area will lead to poor maintenance. This does not appear to be consistent with the high standards followed by the City of Chanhassen. Sincerely, Lance Erickson 4/26/2006 CITY OF CHANHASSEN AFFIDAVIT OF MAILING NOTICE STATE OF MINNESOTA) ) ss. COUNTY OF CARVER ) I, Karen J. Engelhardt, being first duly sworn, on oath deposes that she is and was on April 20, 2006, the duly qualified and acting Deputy Clerk of the City of Chanhassen, Minnesota; that on said date she caused to be mailed a copy of the attached notice of Public Hearing for Galpin Crossing Twinhomes — Planning Case 06-13 to the persons named on attached Exhibit "A", by enclosing a copy of said notice in an envelope addressed to such owner, and depositing the envelopes addressed to all such owners in the United States mail with postage fully prepaid thereon; that the names and addresses of such owners were those appearing as such by the records of the County Treasurer, Carver County, Minnesota, and by other appropriate records. 4Ken J. ge ardt, uty Clerk Subscribedand swam to before me this4 y ofApt, 1 , 2006. Notary P blic Lix::::: ENsota31, 2010 Notice of Public Hearing Chanhassen Planning Commission Meeting Date & Tuesday, May 2, 2006 at 7:00 P.M. This hearing may not start until later in Time: the evening, depending on the order of the agenda. Location: City Hall Council Chambers, 7700 Market Blvd. GALPIN CROSSING TWINHOMES: Request for Rezoning from Agricultural Estate District, A2, to Planned Unit Development — Residential, PUD -R; Preliminary Plat approval creating 13 lots and Proposal: one outlet with a Variance for a private street and more than four homes accessing a private street; and a Conditional Use Permit for development within the Bluff Creek Overlay District — Planning Case 06-13 A licant: Epic Development XVI, LLC Property Northwest corner of Galpin Boulevard & West 78' Street Location: A location map Is on the reverse side of this notice. The purpose of this public hearing is to inform you about the applicant's request and to obtain input from the neighborhood about What this project. During the meeting, the Chair will lead the public Happens hearing through the following steps: at the 1. Staff will give an overview of the proposed project. Meeting: 2. The applicant will present plans on the project. 3. Comments are received from the public. 4. Public hearing is closed and the Commission discusses the project. If you want to see the plans before the meeting, please visit the City's projects web page at: www.ci.chanhassen.mn.us/serv/plan/06.13.html. If you wish to talk to someone about this project, please contact Bob Generous by Questions email at baenerous@ci.chanhassen.mn.us or by phone at 952 -227 - & 1131. If you choose to submit written comments, it is helpful to have Comments: one copy to the department in advance of the meeting. Staff will provide copies to the Commission. The staff report for this Item will be available online on the project web site listed above the Thursday prior to the Planning Commission meeting. City Review Procedure: • Subdivisions, Planned Unit Developments, Site Plan Reviews, Conditional and Interim Uses, Welland Alterations, Rezonings, Comprehensive Plan Amendments and Code Amendments require a public hearing before the Planning Commission. City ordinances require all property within 500 feel of the subject site to be notified of the application in writing, Any interested parry is invited to attend the meeting. • Staff prepares a report on the subject application that includes all pertinent information and a recommendation. These reports are available by request. At the Planning Commission meeting, staff will give a verbal overview of the report and a recommendation. The item will be opened for the public to speak about the proposal as a part of the hearing process. The Commission will close the public hearing and discuss the item and make a recommendation to the City Council. The City Council may reverse, affirm or modify wholly or partly the Planning Commission's recommendation Rezonings, land use and code amendments take a simple majority vote of the City Council except rezonings and land use amendments from residential to commercialAndustrial. • Minnesota State Statute 519.99 requires all applications to be processed within 60 days unless the applicant waives this standard. Some applications due to their complexity may take several months to complete. Any person wishing to follow an item through the process should check with the Planning Department regarding its status and scheduling for the City Council meeting. • A neighborhood spokesperson/representative is encouraged to provide a contact for the city. Often developers are encouraged to meet with the neighborhood regarding their proposal. Staff is also available to review the project with any interested person(s). • Because the Planning Commission holds the public hearing, the City Council does not. Minutes are taken and any correspondence regarding the application will be included in the report to the City Council. If you wish to have Something to be included in the report, lease contact the Planning Staff person named on the notification. Notice of Public Hearing Chanhassen Planning Commission Meeting Date & Tuesday, May 2, 2006 at 7:00 P.M. This hearing may not start until later in Time: the evening, depending on the order of the agenda. Location: City Hall Council Chambers, 7700 Market Blvd. GALPIN CROSSING TWINHOMES: Request for Rezoning from Agricultural Estate District, A2, to Planned Unit Development — Residential, PUD -R; Preliminary Plat approval creating 13 lots and Proposal: one outlot with a Variance for a private street and more than four homes accessing a private street; and a Conditional Use Permit for development within the Bluff Creek Overlay District — Planning Case 06-13 Applicant: Epic Development XVI, LLC Property Northwest corner of Galpin Boulevard & West 78th Street Location: A location map is on the reverse side of this notice. The purpose of this public hearing is to inform you about the applicant's request and to obtain input from the neighborhood about What this project. During the meeting, the Chair will lead the public Happens hearing through the following steps: at the 1. Staff will give an overview of the proposed project. Meeting: 2. The applicant will present plans on the project. 3. Comments are received from the public. 4. Public hearing is closed and the Commission discusses the project. If you want to see the plans before the meeting, please visit the City's projects web page at: www.ci.chanhassen.mn.us/serv/plan/06-13.html. If you wish to talk to someone about this project, please contact Bob Generous by Questions email at boenerous@ci.chanhassen.mn.us or by phone at 952 -227 - & 1131. If you choose to submit written comments, it is helpful to have Comments: one copy to the department in advance of the meeting. Staff will provide copies to the Commission. The staff report for this Item will be available online on the project web site listed above the Thursday prior to the Planning Commission meeting. City Review Procedure: • Subdivisions, Planned Unit Developments, Site Plan Reviews, Conditional and Interim Uses, Welland Alterations, Rezonings, Comprehensive Plan Amendments and Code Amendments require a public hearing before the Planning Commission. City ordinances require all property within 500 feet of the subject site to be notified of the application in writing. Any interested party is invited to attend the meeting. • Staff prepares a report on the subject application that includes all pertinent information and a recommendation. These reports are available by request. At the Planning Commission meeting, staff will give a verbal overview of the report and a recommendation. The item will be opened for the public to speak about the proposal as a part of the hearing process. The Commission will close the public hearing and discuss the item and make a recommendation to the City Council. The City Council may reverse, affirm or modify wholly or partly the Planning Commission's recommendation, Rezonings, land use and code amendments take a simple majority vote of the City Council except rezonings and land use amendments from residential to commercial/industrial. • Minnesota State Statute 519.99 requires all applications to be processed within 60 days unless the applicant waives this standard. Some applications due to their complexity may take several months to complete. Any person wishing to follow an item through the process should check with the Planning Department regarding its status and scheduling for the City Council meeting. • A neighborhood spokesperson/representative is encouraged to provide a contact for the city. Often developers are encouraged to meet with the neighborhood regarding their proposal. Staff is also available to review the project with any interested person(s). • Because the Planning Commission holds the public hearing, the City Council does not. Minutes are taken and any correspondence regarding the application will be included in the report to the City Council. If you wish to have something to be included in the report, please contact the Planning Staff person named on the notification. ulscialmer This map is neither a legally recorded maj, nor a survey arM is not intended to be used as one. The map is a compilation of monis, inforrreeon and data located in vanous city, county, state and federal offices and other sources regarding Me area shown, and is to be used for reference purposes only. The City does not warrant that the Geographic Information System (GIS) Data used to prepare this map are error free, and Me City does not represent that the GIS Data can be used for navigational, tracking or any other purpose requiring exacting measurement of distance or direction or precision in Me depiction of geographic features. d errors or discrepancies are found please conn ct 952-227-1107. The preceding disclanne, is provided pursuant to Minnesota Statutes §466,03. Subd. 21 (2000), and the user of this map acknovAedges that the City shall not be Bade for any damages, and expressly waives all chins, and agrees to delend, indermify, and hold hamYess the City from any and all pains brought by User, its employees or agents, or third parties which ansa out of the users access or use of data provided. This map Is neither a legally recorded map nor a survey and is not unshaded! to be used as one. This map is a compilation or rergrds. information and does locatetl in vanous city, county, state arta federal Offices and other soumas regarding Me area drown, and is M be used for reference purposes only. The City does not "mare that the Geographic Inlornation System (GIS) Data used to prepare this rep are error free, and Me City does not represent that Me GIS Data can be used for navigational, tracking or any other W rpose mquinng exacting measurement of distance or direction or precision in the depiction of geographic features. X snore or discrepancies are found please co acct 952-227-1107. The preceding disciaimer is provided pursuant to Minnesota Statutes §466.03. Subd. 21 (2000). and the user of thus map acknowledges that the City shalt nor be liable for any dermi will expressly waives all darts, and agrees to defend. indennity, and had harmless Me City from any and all claim brought by User, its employees or agents, or third paries which apse out of the users access or use of data prowtled. U S HOME CORP THEODORE F & MARLENE M BENTZ MARK A & SARAH L PLETTS 935 EAST WAYZATA BLVD 7300 GALPIN BLVD 7517 BENT BOW TRL WAYZATA. MN 55391 -1849 EXCELSIOR. MN 55331 -8011 CHANHASSEN. MN 55317 -6401 JEFFREY M & TIFFANY M WEYANDT THEODORE A & ANGELA M ELLEFSON DAVID & MELISSA WINDSCHITL 7626 RIDGEVIEW WAY 7609 WALNUT CRV 7620 RIDGEVIEW WAY CHANHASSEN, MN 55317 -4507 CHANHASSEN, MN 55317 -9395 CHANHASSEN, MN 55317 -4507 KATHRYN T STODDART MODEL HOMES LLC KLINGELHUTZ DEVELOPMENT CO 7305 GALPIN BLVD 1997 TOPAZ DR 350 HWY 212 E EXCELSIOR , MN 55331 -8059 CHANHASSEN, MN 55317 -7593 PO BOX 89 CHASKA . MN 55318 -0089 MARK I & MAUREEN E MAGNUSON VASSERMAN RIDGE PROMENADE INC RALPH H PAMPERIN & 7715 VASSERMAN TRL C/O U S HOME CORP BARBARA J ELSETH CHANHASSEN , MN 55317 -4506 935 WAYZATA BLVD E 7719 VASSERMAN TRL WAYZATA, MN 55391 -1849 CHANHASSEN , MN 55317 -4506 LAWRENCE M & MICHAELE A MARTIN SUSAN M ERICKSON CHRISTOPHER B CESAR 7725 VASSERMAN TRL 2198 BANEBERRY WAY W 2194 BANEBERRY WAY W CHANHASSEN, MN 55317 -4506 CHANHASSEN. MN 55317 -8338 CHANHASSEN, MN 55317 -8338 CHARLES L & GAIL E GELINO G THOMAS & PHYLLIS O SUTCLIFFE KAREN N SCHUELE 7729 VASSERMAN TRL 7710 VASSERMAN TRL 7714 VASSERMAN TR CHANHASSEN, MN 55317 -4506 CHANHASSEN. MN 55317 -4506 CHANHASSEN. MN 55317 -4506 HANG CHAN & CHEUKWAI CHONG BRIAN D SMITH MELISSA A HEIN 2201 BANEBERRY WAY W 2197 BANEBERRY WAY W 2193 BANEBERRY WAY W CHANHASSEN, MN 55317 -8339 CHANHASSEN, MN 55317 -8340 CHANHASSEN, MN 55317 -8340 DIANNE JANICE ERICKSON ROBERT L & NANCY R BRANDON MARYANN TOMPKINS TRUSTEE OF TRUST 7720 VASSERMAN TRL 7724 VASSERMAN TRL 7735 VASSERMAN TRL CHANHASSEN, MN 55317 -4506 CHANHASSEN, MN 55317 -4506 CHANHASSEN, MN 55317 -4506 ROBERT L GRIFFITH & TED B KENDALL & GABRIELLE GRIFFITH SALLY VASSYMANERMAN CYNTHIA FRENCH KENDALL 7739 VASSERMAN TRL CHANHASSEN, VASSE N , M TRL 7766 VASSERMAN PL CHANHASSEN, MN 55317 -4506 CHANHASSEN MN 55317 -4506 CHANHASSEN, MN 55317 -4536 WALNUT GROVE HOMEOWNERS ASSN MARK T & ALICIA F SCHIMKE SRIRAM VISWANATHAN & TfLEMAN MGMT 7626 PRAIRIE FLOWER BLVD GAYATHRI SAMBASIVAN 1801 E 79TH ST CHANHASSEN, MN 55317 -8334 7614 RIDGEVIEW WAY SUITE 21 CHANHASSEN, MN 55317 -4507 BLOOMINGTON, MN 55425 -1230 KATHRYN T STODDART MODEL HOMES LLC KLINGELHUTZ DEVELOPMENT CO 7305 GALPIN BLVD 1997 TOPAZ DR 350 HWY 212 E EXCELSIOR , MN 55331 -8059 CHANHASSEN, MN 55317 -7593 PO BOX 89 CHASKA . MN 55318 -0089 MARK I & MAUREEN E MAGNUSON VASSERMAN RIDGE PROMENADE INC RALPH H PAMPERIN & 7715 VASSERMAN TRL C/O U S HOME CORP BARBARA J ELSETH CHANHASSEN , MN 55317 -4506 935 WAYZATA BLVD E 7719 VASSERMAN TRL WAYZATA, MN 55391 -1849 CHANHASSEN , MN 55317 -4506 LAWRENCE M & MICHAELE A MARTIN SUSAN M ERICKSON CHRISTOPHER B CESAR 7725 VASSERMAN TRL 2198 BANEBERRY WAY W 2194 BANEBERRY WAY W CHANHASSEN, MN 55317 -4506 CHANHASSEN. MN 55317 -8338 CHANHASSEN, MN 55317 -8338 CHARLES L & GAIL E GELINO G THOMAS & PHYLLIS O SUTCLIFFE KAREN N SCHUELE 7729 VASSERMAN TRL 7710 VASSERMAN TRL 7714 VASSERMAN TR CHANHASSEN, MN 55317 -4506 CHANHASSEN. MN 55317 -4506 CHANHASSEN. MN 55317 -4506 HANG CHAN & CHEUKWAI CHONG BRIAN D SMITH MELISSA A HEIN 2201 BANEBERRY WAY W 2197 BANEBERRY WAY W 2193 BANEBERRY WAY W CHANHASSEN, MN 55317 -8339 CHANHASSEN, MN 55317 -8340 CHANHASSEN, MN 55317 -8340 DIANNE JANICE ERICKSON ROBERT L & NANCY R BRANDON MARYANN TOMPKINS TRUSTEE OF TRUST 7720 VASSERMAN TRL 7724 VASSERMAN TRL 7735 VASSERMAN TRL CHANHASSEN, MN 55317 -4506 CHANHASSEN, MN 55317 -4506 CHANHASSEN, MN 55317 -4506 ROBERT L GRIFFITH & TED B KENDALL & GABRIELLE GRIFFITH SALLY VASSYMANERMAN CYNTHIA FRENCH KENDALL 7739 VASSERMAN TRL CHANHASSEN, VASSE N , M TRL 7766 VASSERMAN PL CHANHASSEN, MN 55317 -4506 CHANHASSEN MN 55317 -4506 CHANHASSEN, MN 55317 -4536 JAMES H & AMELIA A CHMURA ARTEMAS ROBERTS III & LARRY S & TERESA M HANSON 7745 VASSERMAN TRL MARY K ROBERTS 7734 VASSERMAN TRL CHANHASSEN, MN 55317 -4506 7762 VASSERMAN PL CHANHASSEN, MN 55317 -4506 CHANHASSEN, MN 55317-4536 THOMAS E & HELEN E ERNST 7749 VASSERMAN TRL CHANHASSEN, MN 55317-4506 CONVENIENCE STORE INVESTMENTS PO BOX 2107 LACROSSE, WI 54602-2107 STANLEY W VALENSKY & MARY LYNN VALENSKY 7752 VASSERMAN PL CHANHASSEN. MN 55317-4536 DIANE JULSON 7740 VASSERMAN TRL CHANHASSEN, MN 55317-4506 GEORGE B & HELEN K ASSIE 31 WOOD MEADOWS LN SASAKATOON,SKS7i1C7- MICHAEL L & CAROLYN L SHIELDS 7759 VASSERMAN TRL CHANHASSEN, MN 55317 -4506 GERALD P & PEGGY A WOLFE 7755 VASSERMAN TRL CHANHASSEN, MN 55317 -4.506 THOMAS W & SHARON D KRAUS 7744 VASSERMAN TRL CHANHASSEN. MN 55317-4506 RUTH H MITAL 7750 VASSERMAN TRL CHANHASSEN, MN 55317-4506 VASSERMAN RIDGE MASTER ASSOC JIM R & BONNIE B HUDSON SERLIN PROPERTIES LLC C/O U S HOME CORP 7754 VASSERMAN TRL 1747-01 OCCUPANCY EXP DEPT 935 WAYZATA BLVD E 1 CVS DR WAYZATA, MN 55391 -1849 CHANHASSEN , MN 55317 -4506 WOONSOCKET , RI 02895 6146 Public Hearing Notification Area (500 feet) Galpin Crossing Twinhomes Planning Case No. 06-13 NW Corner West 78th Street & Galpin Blvd. City of Chanhassen wl Em MEMO RUMM m •as'o L(m� Lll 3 3 U ® rC mfree C g W8TH Street �m 5 Arboretum Boulevard - - --- ----------- RM CITY OF CHANHASSEN STAFF REPORT PC DATE: May 2, 2006 CC DATE: May 22, 2006 REVIEW DEADLINE: May 29, 2006 CASE #: 06-13 BY: AF, RG, LH, ML, JM, JS PROPOSAL:Galpin Crossing Twinhomes - Request for rezoning from Agricultural Estate District, A2, to Planned Unit Development — Residential, PUD -R; Preliminary plat approval creating 13 lots and one Outlot with a Variance for a private street and more than four homes accessing a private street; and Conditional Use Permit for development within the Bluff Creek Overlay District. LOCATION: North of West 78's Street and west of Galpin Boulevard APPLICANT: Rich Ragatz — Epic Development XVI, LLC 9820 Sky Lane Eden Prairie, MN 55347 (612)730-2814 rragatz@earthlink.net PRESENT ZONING: A2, Agricultural Estate District 2020 LAND USE PLAN: Residential — Low Density (net density range 1.2 — 4.0 units per acre) ACREAGE: 6.09 DENSITY: gross - 1.97; net — 3.17 SUMMARY OF REQUEST: Request for a rezoning to Planned Unit Development — Residential to permit a 12 -unit (6 -structure) twin home development including a subdivision with a variance for the use of a private street and to permit more than 4 units to be accessed via the private street and a conditional use permit to permit development within the Bluff Creek Overlay District. LEVEL OF CITY DISCRETION IN DECISION-MAKING: The City has a relatively high level of discretion in approving rezonings, PUD's, and amendments to PUD's because the City is acting in its legislative or policy making capacity. A rezoning or PUD, and amendment thereto, must be consistent with the City's Comprehensive Plan. The City's discretion in approving or denying a preliminary plat is limited to whether or not the proposed plat meets the standards outlined in the Subdivision Regulations and Zoning Ordinance. If it meets these standards, the City must approve the preliminary plat. This is a quasi judicial decision. The City's discretion in approving or denying a variance is limited to whether or not the proposed project meets the standards in the Subdivision Ordinance for a variance. The City has a relatively high level of discretion with a variance because the applicant is seeking a deviation from established standards. This is a quasi judicial decision. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 2 of 19 The City has limited discretion in approving or denying conditional use permits, based on whether or not the proposal meets the conditional use permit standards outlined in the Zoning Ordinance. If the City finds that all the applicable conditional use permit standards are met, the permit must be approved. This is a quasi judicial decision. PROPOSAL/SUMMARY The applicant is proposing a 12 -unit (6 -building) twin home development on six acres of land. The site is constrained on the north by Bluff Creek and the Bluff Creek Primary zone, on the south by West 7e Street, a collector street, to the east by Galpin Boulevard, a collector street, and to the west by Vasserman Ridge, a storm water pond and electric transmission line. Though fronting on a public right-of-way, direct lot access onto a collector street is prohibited. The proposed units will be accessed via a private street. City utilities are available to the site. Bluff Creek and a wetland encompass the northern portion of the site. The site was previously used as the field area for a golf driving range. Trees exist along the western property line and adjacent to Bluff Creek. The city has a sanitary sewer trunk main running across the northern portion of the property. The high point of the property lies in the southeast corner and slopes towards the wetland and Bluff Creek. The area south of West 780i Street drains to the site via a culvert. The overhead power lines west of the west property line will remain. The property to the north is zoned Agricultural Estate District, but guided for residential — low density development, and contains a farmstead owned by Theodore Bentz. To the east is Galpin Boulevard and property owned by the City adjacent to Bluff Creek. To the south is West 7801 Street and property that has concept Planned Unit Development approval for either a "family fun center" or an office park. The property to the west contains electrical towers and transmission lines, a storm water pond and twin homes within the Vasserman Ridge development. Under a perfect development scenario, this parcel would be used for open space purposes and stormwater ponding in conjunction with the parcel south of West 78th Street. This development configuration would permit an intensification of the use of the parcel adjacent to Highway 5, specifically permitting higher impervious area. Staff is recommending approval of the development subject to the conditions of the staff report. APPLICABLE REGUATIONS Chapter 18 Subdivisions Chapter 20, Article II, Division 2, Amendments Chapter 20, Article IV, Conditional Use Permits Chapter 20, Article VI, Wetland Protection Chapter 20, Article VII, Shoreline Management Chapter 20, Article VIII, Planned Unit Development District Chapter 20, Article XXIX, Highway Corridor District Chapter 20, Article Y.=, Bluff Creek Overlay District Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 3 of 19 BACKGROUND On December 12, 2005, the Chanhassen City Council approved the concept planned unit development for a twin home (north of West 78`° Street) and office development (south of West 78' Street) project. On October 13, 2003, the Chanhassen City Council approved the Concept Planned Unit Development (PUD) review for development of a recreational center or office on the eight (8) acres south of West 78's Street. The land north of West 78th Street, which was proposed for townhouse development, was not approved as part of the concept planned unit development. In 2000 and 2001, West 78a' Street was constructed through the property, bisecting it into six and eight -acre parcels. Additionally, the city extended sanitary sewer for the BC -7 and BC -8 sanitary sewer subdistricts across the northern portion of the property. December 12, 1998, the Chanhassen City Council adopts the Bluff Creek Overlay District. December 1996, Bluff Creek Watershed Natural Resources Management Plan is completed. 1996, City Council adopts the Land Uses for the North 1995 Study Area, guiding this property for residential — low density use. In August 1995, the Highway 5 Corridor Land Use Design Study was completed. The bulk of the area was recommended for single-family residential. A portion of the Mills property (Arboretum Village site) was recommended for neighborhood convenience retail center, but only ancillary to office, institutional or multi -family residential. Highway 5 Corridor Design Standards adopted July 11, 1994. As part of the 1991 Comprehensive Plan, this property was included as part of the 1995 study area for determination of the land use of the property. On February 12, 1990, the Chanhassen City Council approved a zoning ordinance amendment making golf driving ranges interim uses in the A2 district. On November 16, 1987, the Chanhassen City Council approved a zoning ordinance amendment to permit golf driving ranges as a conditional use in the A2 zoning district and a conditional use permit for John Przymus for a golf driving range and miniature golf course at the subject property. On November 4, 1985, the Chanhassen City Council revoked the conditional use permit for a golf driving range at the northwest comer of Highway 5 and Galpin Boulevard due to non- compliance with the conditions of the conditional use permit. On December 19, 1983, the Chanhassen City Council approved a conditional use permit for a golf driving range at the northwest corner of Highway 5 and Galpin Blvd. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 4 of 19 REZONING Planned unit developments offer enhanced flexibility to develop a site through the relaxation of most normal zoning district standards. The use of the PUD in this instance is to create a twin - home development within the Bluff Creek Overlay District. In exchange for this enhanced flexibility, the City has the expectation that the development plan will result in a significantly higher quality and more sensitive proposal than would have been the case with the other more standard zoning districts including the provision of development design standards for the structures, which would not be possible under standard zoning. The proposed development provides a compatible development with the surrounding development, provides a transition of uses from the highway to the residential development to the north, and preserves the Bluff Creek corridor within a separate outlot. Alternatively under the Residential — Low Density land use, the project could development under the Mixed Low Density Development (R4) District or Residential Low and Medium Density (RLM) standards for twin homes. Area (sq. ft.) per unit Frontage (ft.) per unit Depth (ft.) Setbacks: Front Rear, Side (ft.) R4 10,000 50 125 30, 10, 30 RLM 7,260 50 100 25, 10, 25 PUDR 3,330 (Avg. 3,668) 45 74 50*, 0, 0 * Required setback from West 78 Street Based on the standards zoning ordinances, the developer may not be able to plat 12 units under the R4 zoning categories. At a minimum, the plat would have to be significantly revised to determine compliance. It appears more feasible under the RLM zoning. A twin home development assists in the furtherance of the following land use policies of the City of Chanhassen Comprehensive Plan: • Development will be encouraged within the MUSA line. • Encourage low density residential development in appropriate areas of the community in a manner that reinforces the character and integrity of existing single-family neighborhoods (the proposed twin homes would continue the development of twin homes in the southeast corner of the Vasserman Ridge development to the west of the site). • The plan should seek to establish sufficient land to provide a full range of housing opportunities. • The city will seek opportunities to provide transitions between different uses of different types. • Development should be phased in accordance with the ability of the city to provide services. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 5 of 19 A twin home project assists in the furtherance of the following housing policies of the City of Chanhassen Comprehensive Plan: • A balanced housing supply with housing available for people of all income levels. • A variety of housing types for people in all stages of the life cycle. • Housing development that respects the natural environment of the community while striving to accommodate the need for a variety of housing types and costs. The PUD provides enhanced architectural standards, but the environment preservation meets the standards required by City Code, which would be met by the other zoning options. If a Planned Unit Development is the preferred zoning, then the following design standards are recommended: Development Design Standards a. Intent The purpose of this zone is to create a twin home, PUD Residential zone. The use of the PUD zone is to allow for more flexible design standards while creating a higher quality and more sensitive proposal. All utilities are required to be placed underground. b. Permitted Uses The permitted uses within the neighborhood shall be 12 twin home and appropriate accessory structures. If there is a question as to whether or not a use meets the definition, the Community Development Director shall make that interpretation. The type of uses to be provided on Outlot B shall be low intensity neighborhood oriented accessory structures to meet daily needs of residents. Such uses may include development signage, common gardens, association gazebo, association maintenance shed, association picnic shelter or association play equipment. An encroachment agreement shall be required prior to construction within Outlot B. c. Setbacks The PUD ordinance requires setbacks from roadways and exterior property lines. The following table displays those setbacks. Standards West 78h Street and Gal in Blvd. 50 feet West Project Property line 30 feet Minimum Driveway length (to back of curb) 25 feet Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 6 of 19 Interior Lot Line (around each structure) 0 feet Hard Surface Coverage 30 percent for the entire development Wetland: Buffer and buffer setback 16.5 feet and 40 feet Bluff Creek Primary zone boundary 40 feet Building Height 35 feet d. Building Materials and Design • Building exterior material shall be a combination of hardiboard, vinyl or shake siding and brick, stone or stucco. • No two adjacent structures shall be of the same color scheme. • Colors used shall be varied across color tones. • Garage doors must have windows. • All units shall utilize minimum timberline 30 -year shingles. • Each unit shall have a minimum of one over story tree within its front landscape yard (between the house and the private street). • All mechanical equipment shall be screened with material compatible to the building, landscaping or decorative fencing. (It should be noted that the proposed development as shown on the plans, including buildings, driveways and private streets, has site coverage of 21 percent. Even if each of Lots 1 - 12 were covered completely in impervious surface, the development would only be at 27 percent site coverage.) SUBDIVISION REVIEW STREETS/ACCESS The proposed access to this development lies approximately 660 feet west of Galpin Boulevard and 420 feet east of Vasserman Trail. Access to the units will be from a privately owned and maintained drive, which will be 90 feet in diameter at the entrance, and 20 feet wide through the remainder of the site. A hammerhead turnaround will be installed at the eastern terminus of the drive. The plans show that the private drive will be installed five feet from the right of way line. Snow removal from the private drive must not encroach into the public right-of-way. Access to the office site is proposed via West 78h Street which is a collector street within the City of Chanhassen. No direct vehicular access from individual lots to collector roadways is permitted. The internal access to the twin homes is via a private street. Private street easements are 30 feet with a 20 -foot pavement width for twin homes. A turnaround at the east end of the private street shall be required. Under any of the development alternatives, a private street for access purposes would be likely. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 7 of 19 Private Street In order to permit private streets, the city must find that the following conditions exist: (1) The prevailing development pattern makes it unfeasible or inappropriate to construct a public street. In making this determination, the city may consider the location of existing property lines and homes, local or geographic conditions and the existence of wetlands. (2) After reviewing the surrounding area, it is concluded that an extension of the public street system is not required to serve other parcels in the area, improve access, or to provide a street system consistent with the comprehensive plan. (3) The use of the private street will permit enhanced protection of the city's natural resources including wetlands and forested areas. Due to the constraints on the site, West 78d' Street and the Bluff Creek primary zone, it is not feasible to incorporate a public street within the development site. The use of a public street in this area would add unnecessary impervious surface and corresponding runoff to Bluff Creek. LANDSCAPING/TREE PRESERVATION Tree canopy coverage and preservation calculations for the Galpin Crossing Twinhomes development are as follows: Total upland area (excluding wetlands) 238,018 SF Total canopy area (excluding wetlands) 33,490 SF Baseline canopy coverage 14% Minimum canopy coverage allowed 25% or 59,504 SF Proposed tree preservation 13% or 30,942 SF Developer does not meet minimum canopy coverage allowed. Replacement plantings are required for the difference between the existing canopy coverage and the minimum required. Replacement required (25%-14%) 26,181 SF or 24 trees The applicant is removing all existing trees. This is penalized by multiplying the area by 1.2 to calculate the required replacement plantings. Canopy coverage removed 2,380 SF Multiplier 1.2 Total replacement 2,856 SF Total number of trees to be planted 3 trees A total of 27 trees are required as replacement plantings for this development. A replacement planting plan has been submitted to the city for approval. It shows 30 trees. In addition, the applicant shall provide each home with a minimum of one tree in the front yard. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 8 of 19 Bufferyard requirements are as shown in the table: Landscaping Item Required Proposed Bufferyard B — South 17 overstory trees 18 overstory trees property line, 860' 34 understory trees 18 understory trees W. 78th Street 51 shrubs 54 shrubs Bufferyard B — East 4 Overstory trees 4 overstory trees property line, 210' 8 Understory trees 4 understory trees Gal in Blvd. 1 12 shrubs 1 12 shrubs Boulevard trees — W. 78th 22 overstory trees 1 15 overstory trees with 1 St. —1 per 30 feet 50' s acin The applicant falls short on understory requirements within the bufferyards. The applicant has submitted less boulevard trees than ordinance requirements, but the spacing is preferable to 30 feet with the additional understory and shrub plantings. Staff recommends that plantings shown along the wetland and Bluff Creek Primary Corridor be selected from the plant list in the appendix of the management plan. These shall be native plantings that will serve to enhance the environmental features of the site. The restoration plan shall be submitted to the city for approval prior to City Council final approval. GRADING/DRAINAGE The developer has submitted a soil boring report indicating that approximately two feet of peat material exists south of the wetland. This material will be excavated and fill will be imported to grade the site. The lowest floor elevations for Lots 1 through 4 must be raised to a minimum elevation of 963. 1, which is three feet above the high water level of the existing pond to the west within the Vasserman Ridge development. The lowest floor elevations for Lots 5 through 12 must be raised to a minimum elevation of 958.5, which is three feet above the high water level of the wetland, as indicated in the City of Chanhassen's 1994 Surface Water Management Plan. The final grading plan must identify an emergency overflow location and elevation for the proposed pond. The grading plan must be adjusted so that soil grades are minimum 2%. The proposed grading north and west of Lot 12 must be adjusted so that the drainage Swale will not direct runoff toward the backs of Lots 11 and 12. The six foot high berm on the east side of the private drive must be shifted to the east to provide minimum five feet of boulevard space. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 9 of 19 The developer must ensure that the final grading plan does not include driveways sloping towards the homes on Lots 11 and 12. Driveway grades must be between 1.5% and 10% at any point within the driveway. The developer has submitted hydrology calculations for the proposed development for the proposed site for staff review. The developer must submit existing and proposed drainage maps. Staff will forward comments to the developer prior to final plat consideration. The developer has sized the pond to accommodate the existing runoff from the property south of West 78b Street. Storm water ponding must be constructed for the additional post -development runoff when the property south of West 78`h Street is developed. Hydraulic calculations must be submitted with the final plat submittals and must include storm sewer inlet capacity analysis to verify that 100% of the runoff from a 10 -year event can be captured. RETAINING WALLS The developer does not propose to construct any retaining walls on the site. WETLANDS Two aglurban wetlands exist on-site. Schoell & Madson, Inc. delineated the wetlands in June 2003. Basin 2 is a Type 2 wetland located in the west -central portion of the property, north of West 78th Street. The wetland is dominated by reed canary grass and smartweed. Basin 3 is a Type 2 wetland located in the northern portion of the property. The wetland is dominated by reed canary grass, smartweed, trembling aspen and box elder. On August 29, 2003, City staff issued a Notice of Wetland Conservation Act Decision for a wetland exemption for Basin 2. Aerial photography was reviewed by the City and the wetland basins on either side of West 78d' Street were not present prior to the construction of West 78d' Street. The wetlands were found to be a result of blockage of drainage along the south side of West 78d' Street and concentration of runoff on the downstream (north) end of the culvert under West 781i Street. A wetland buffer 16.5 to 20 feet in width (with a minimum average of 16.5 feet) must be maintained around Wetland 3. Wetland buffer areas should be preserved, surveyed and staked in accordance with the City's wetland ordinance. The applicant must install wetland buffer edge signs, under the direction of City staff, before construction begins and must pay the City $20 per sign. All structures must maintain a setback of at least 40 feet from the wetland buffer edge. EROSION AND SEDIMENT CONTROL All perimeter controls and inlet protections must remain in place until 70% of the area is permanently protected by vegetative cover. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 10 of 19 All area disturbed within 200 feet of Bluff Creek must be stabilized within 3 days. The plans should be revised to show all areas with 3:1 slopes or steeper that will be blanketed. A stable emergency overflow (EOF) for the ponds should be provided. The EOF could consist of riprap and geotextile fabric or a turf re -enforcement mat (a permanent erosion control blanket). A typical detail should be included in the plan. Energy dissipation should be provided for all inlets and outlets within 24 hours of installation Wimco-type or other comparable inlet controls should be used and installed within 24 hours of installation of the inlets. Typical building lot controls should be shown on the plan in a typical detail. These controls should include perimeter controls (silt fence), rock driveways, street sweeping, inlet control and temporary mulch after final grade and prior to issuing the Certificate of Occupancy (CO). The proposed storm water ponds should be used as a temporary sediment basin during mass grading. The pond should be excavated prior to disturbing up -gradient areas. Plans should show how the water will be diverted to the temporary basin. Berms and/or ditches may be needed to divert water to the pond, and temporary pond outlets are needed. The outlet could be a temporary perforated standpipe and rock cone. The plans should be revised to include a detail for the temporary pond outlet. An adequate easement for pond access for maintenance purposes is needed and should be shown on the plan. The proposed silt fence along Wetland 3 should be Type 2 silt fence, as specified in Chanhassen Standard Detail Plate 5300. Type 1 silt fence may be used for the remainder of the site. The grading plan should be revised to show the proposed silt fence following the grading limits for the site, including the 20 -foot grading setback from the primary corridor. The perimeter controls should be inspected by the city and the SWCD prior to grading. The grading plan should be revised to show the location of the proposed rock construction entrance. Street cleaning of soil tracked onto public streets shall include daily street scraping and street sweeping as -needed. SURFACE WATER MANAGEMENT FEES Water Quality Fees Because of the impervious surface associated with this development, the water quality fees for this proposed development are based on rates for duplexes of $1,800/acre. Based on the proposed developed area of approximately 6.1 acres, the water quality fees associated with this project are $10,980. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 11 of 19 Water Quantity Fees The SWMP has established a connection charge for the different land uses based on an average citywide rate for the installation of water quantity systems. This cost includes land acquisition, proposed SWMP culverts, open channels, and storm water ponding areas for runoff storage. Single- family residential developments have a connection charge of $2,900 per developable acre. This results in a water quantity fee of approximately $17,690 for the proposed development. SWMP Credits This project proposes the construction of one NURP ponds. The applicant will be credited for water quality where NURP basins are provided to treat runoff from the site. This will be determined upon review of the ponding and storm sewer calculations. Credits may also be applied to the applicant's SWMP fees for oversizing in accordance with the SWMP or the provision of outlet structures. No credit will be given for temporary pond areas. At this time, the estimated total SWMP fee, due payable to the City at the time of final plat recording, is $28,670. OTHER AGENCIES The owner/operator of the proposed development shall apply for and obtain permits from the appropriate regulatory agencies (e.g., Riley -Purgatory -Bluff Creek Watershed District, Minnesota Pollution Control Agency (NPDES Phase II Construction Site Permit), Minnesota Department of Natural Resources (for dewatering), Minnesota Department of Transportation, Minnesota Department of Health) and comply with their conditions of approval. UTILITIES The developer proposes to extend lateral sanitary sewer from the existing Metropolitan Council interceptor line. The developer must obtain a permit from Metropolitan Council prior to utility installation. Lateral watermain will extend from the existing 18 -inch trunk within West 78th Street. This connection will require cutting into West 78th Street approximately eight feet from the curb. West 78th Street must remain open during this utility connection. Advanced warning and traffic control measures required during this utility connection must comply with the latest edition of the Minnesota Manual on Uniform Traffic Control Devices. The develer must submit a financial security with the final plat to ensure the restoration of West 78 Street and the bituminous trail. The lateral sanitary sewer and watermain shall be publicly owned and maintained. The developer will be responsible for extending lateral sewer and water service to the lots; therefore, the sanitary sewer and water connection charges will be waived. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 12 of 19 Each new lot is subject to the sanitary sewer and water hookup charges. These fees are collected with the building permit and are based on the rates in effect at the time of building permit application. The party applying for the building permit is responsible for payment of these fees. The lowest floor elevation of each unit must be shown on the utility plan. The developer proposes to install lateral storm sewer to capture runoff from the private drive and the existing culvert under West 78a` Street and convey the runoff to the proposed storm water basin. This storm sewer shall be privately owned and maintained since it does not serve public property. EASEMENTS AND RIGHT-OF-WAY The plan identifies a MNDOT drainage easement on the southern property line, on the west side of the parcel. The developer must obtain permission from MNDOT before performing any work within this easement. A sanitary sewer easement lies along the north side of the property and ranges from 40 to 60 feet wide. The sewer within this easement is the 42 -inch Metropolitan Council interceptor. The developer must obtain permission from Metropolitan Council to perform the proposed grading within this easement. The plans do not identify an easement for the overhead utility lines on the west side of the project. Prior to final plat consideration, the developer must show the easement on the plans. The building footprint must not lie within this easement. The developer must comply with any setback requirements the utility company imposes. A drainage and utility easement will be platted over all of Lot 13, Block 1, which is the common lot within the proposed development. Right-of-way for West 78`s Street adjacent to this property ranges between 115 to 120 feet wide. Additional right-of-way is not required. Outlot A must be protected in perpetuity through the dedication of the outlot to the City of Chanhassen or by the recording of a conservation easement, to be approved by the City, over the entire Outlot A. PARKS AND OPEN SPACE Parks The property is situated within the park service areas of Sugarbush Neighborhood Park and the Chanhassen Recreation Center, a community park facility. No additional parkland dedication is required as a part of the Galpin Crossing proposal. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 13 of 19 Ym7 Two segments of the city's comprehensive trail plan are adjacent to and service the proposed development area—the West 78 Street trail and Galpin Boulevard trail. In the absence of parkland dedication, it is recommended that Galpin Crossing pay full park dedication fees at the rate in force upon final platting. At today's rates, these fees would total $69,600 (12 units @ $5,800 each). COMPLIANCE TABLE Since the proposed development is a Planned Unit Development, the minimum requirements are those established as part of the development. CONDITIONAL USE PERMIT BLUFF CREEK OVERLAY DISTRICT The City of Chanhassen established the Bluff Creek Overlay District by ordinance in 1998 to protect the Bluff Creek Corridor, wetlands, bluffs and significant stands of mature trees through the use of careful site design and other low -impact practices. This parcel is partially encumbered by the Bluff Creek Overlay District. If any alterations are proposed on property within the Bluff Creek Overlay District, a conditional use permit must be obtained prior to alterations occurring. No alterations are allowed within the primary corridor or within the first 20 feet of the setback from the primary corridor. Grading is proposed within the first 20 feet of the setback from the primary corridor north of Lots 5, 6 and 9 through 12, Block 1. The grading plan should be revised to eliminate grading within the first 20 feet of the setback from the primary corridor. All structures must maintain a minimum 40 -foot setback from the primary corridor. The proposed structure on Area (sq. ft.) Width (ft.) Depth (ft.) Lot 1 3,735 45 83 Lot 2 3,735 45 83 Lot 3 3,330 45 74 Lot 4 3,330 45 74 Lot 5 3,735 45 83 Lot 6 3,735 45 83 Lot 7 3,735 45 83 Lot 8 3,735 45 83 Lot 9 3,735 45 83 Lot 10 3,735 45 83 Lot 11 3,735 45 83 Lot 12 13,735 45 83 Lot 13 (Outlot B) 120,778 Outlot A 100,807 TOTAL 265,595 CONDITIONAL USE PERMIT BLUFF CREEK OVERLAY DISTRICT The City of Chanhassen established the Bluff Creek Overlay District by ordinance in 1998 to protect the Bluff Creek Corridor, wetlands, bluffs and significant stands of mature trees through the use of careful site design and other low -impact practices. This parcel is partially encumbered by the Bluff Creek Overlay District. If any alterations are proposed on property within the Bluff Creek Overlay District, a conditional use permit must be obtained prior to alterations occurring. No alterations are allowed within the primary corridor or within the first 20 feet of the setback from the primary corridor. Grading is proposed within the first 20 feet of the setback from the primary corridor north of Lots 5, 6 and 9 through 12, Block 1. The grading plan should be revised to eliminate grading within the first 20 feet of the setback from the primary corridor. All structures must maintain a minimum 40 -foot setback from the primary corridor. The proposed structure on Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 14 of 19 Lot 12, Block 1 does not meet the 40 -foot setback from the primary corridor. The plans should be revised to show that the structure on Lot 12, Block 1 meets the required 40 -foot primary corridor setback. The applicant has proposed placing the portions of the site within the Bluff Creek Overlay District primary corridor into an outlot (Outlot A). Outlot A must be protected in perpetuity through the dedication of the outlot to the City of Chanhassen or by the recording of a conservation easement, to be approved by the City, over the entire Outlot A. RECOMMENDATION Staff recommends that the Planning Commission adopt the following three motions based on the findings of fact attached to this staff report: A. "The Planning Commission recommends approval of the Planned Unit Development rezoning the property within the Galpin Crossing Twinhomes project from A2, Agricultural Estate District, to PUD -R, Planned Unit Development — Residential incorporating the development design standards contained in this staff report." B. "The Planning Commission recommends approval of the Preliminary Plat creating 12 lots and 2 outlots with a variance for the use of a private street and for more than four homes accessed via a private street, plans prepared by Ryan Engineering, dated March 16, 2006, revised April 19, 2006, subject to the following conditions: 1. Designate Lot 13 as Outlot B. 2. A cross -access and maintenance agreement shall be recorded over the private street. A 10 -foot clear space must be maintained around fire hydrants, i.e., street lamps, trees, shrubs, bushes, Xcel Energy, Qwest, cable TV and transformer boxes. This is to ensure that fire hydrants can be quickly located and safely operated by firefighters. Pursuant to Chanhassen City Ordinance #9-1. 4. No burning permits shall be issued for trees to be removed. Trees and shrubs must either be removed from site or chipped. 5. Yellow curbing and "No Parking Fire Lane" signs will be required. Contact Chanhassen Fire Marshal for exact location of yellow curbing and locations of signs to be installed. Pursuant to Minnesota State Fire Code Section 503.3 and 503.4. 6. Dead end fire apparatus access roads in excess of 150 feet in length shall be provided with an approved area for turning around fire apparatus. Submit turn around designs to City Engineer and Chanhassen Fire Marshal for approval. Pursuant to Minnesota State Fire Code Section 503.2.5. (Exception: the code official is authorized to increase the dimension of 150 feet where the building is equipped throughout with an approved automatic fire sprinkler Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 15 of 19 system installed in accordance with Minnesota State Fire Code Section 903.3.1.1, 903.3.1.2 or 903.3.1.3). 7. Fire apparatus access roads and water supply for fire protection is required to be installed. Such protections shall be installed and made serviceable prior to and during the time of construction except when approved alternate methods of protection are provided. Pursuant to Minnesota State Fire Code Section 501.4. 8. Fire apparatus access roads shall be designed and maintained to support the imposed load of fire apparatus and shall be serviced so as to provide all-weather driving capabilities. Pursuant to Minnesota State Fire Code Section 503.2.3. 9. The new proposed street will be required to have a street name. Submit proposed to street name to Chanhassen Building Official and Chanhassen Fire Marshal for review and approval. Pursuant to Minnesota State Fire Code Section 503.3. 10. An additional fire hydrant will be required. Maximum spacing is 300 feet. Contact Chanhassen Fire Marshal for exact location of required additional fire hydrant. 11. Accessibility will have to be provided to all portions of the development and a percentage of the units may also be required to be accessible or adaptable in accordance with Minnesota State Building Code Chapter 1341. Further information is needed to determine these requirements. 12. The buildings are required to be protected with an automatic sprinkler system if they are over 8,500 sq. ft. in floor area. For the purposes of this requirement property lines do not constitute separate buildings and the area of basements and garages is included in the floor area threshold. 13. The buildings will be required to be designed by an architect and engineer as determined by the Building Official. 14. A final grading plan and soils report must be to the Inspections Division before building peinrits can be issued. 15. Walls and projections within 3 feet of property lines are required to be of one-hour fire -resistive construction. 16. Each lot must be provided with separate sewer and water services. 17. The developer and or their agent shall meet with the Inspections Division as early as possible to discuss plan review and permit procedures. 18. A wetland buffer 16.5 to 20 feet in width (with a minimum average of 16.5 feet) shall be maintained around Wetland 3. Wetland buffer areas shall be preserved, surveyed and staked in accordance with the City's wetland ordinance. The applicant shall install wetland buffer edge signs, under the direction of City staff, before construction begins and shall pay the City $20 per sign. All structures shall maintain a setback of at least 40 feet from the wetland buffer edge. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 16 of 19 19. The grading plan shall be revised to eliminate grading within the first 20 feet of the setback from the primary corridor. All structures shall maintain a minimum 40 -foot setback from the primary corridor. The plans shall be revised to show that the structure on Lot 12, Block 1 meets the required 40 -foot primary corridor setback. 20.Outlot A shall be protected in perpetuity through the dedication of the outlot to the City of Chanhassen or by the recording of a conservation easement, to be approved by the City, over the entire Oudot A. 21. All perimeter controls and inlet protections shall remain in place until 70% of the area is permanently protected by vegetative cover. 22. All area disturbed within 200 feet of Bluff Creek shall be stabilized within 3 days. 23. The plans shall be revised to show all areas with 3:1 slopes or steeper that will be blanketed. 24. A stable emergency overflow (EOF) for the ponds shall be provided. The EOF could consist of riprap and geotextile fabric or a turf re -enforcement mat (a permanent erosion control blanket). A typical detail shall be included in the plan. 25. Energy dissipation shall be provided for all inlets and outlets within 24 hours of installation 26. Wimco-type or other comparable inlet controls shall be used and installed within 24 hours of installation of the inlets. 27. Typical building lot controls shall be shown on the plan in a typical detail. These controls should include perimeter controls (silt fence), rock driveways, street sweeping, inlet control and temporary mulch after final grade and prior to issuing the Certificate of Occupancy (CO). 28. The proposed storm water ponds shall be used as a temporary sediment basin during mass grading. The pond shall be excavated prior to disturbing up -gradient areas. Plans shall show how the water will be diverted to the temporary basin. Berms and/or ditches may be needed to divert water to the pond, and temporary pond outlets are needed. The outlet could be a temporary perforated standpipe and rock cone. The plans shall be revised to include a detail for the temporary pond outlet. 29. An adequate easement for pond access for maintenance purposes is needed and shall be shown on the plan. 30. The proposed silt fence along Wetland 3 shall be Type 2 silt fence, as specified in Chanhassen Standard Detail Plate 5300. Type 1 silt fence may be used for the remainder of the site. The grading plan shall be revised to show the proposed silt fence following the grading limits for the site, including the 20 -foot grading setback from the primary corridor. The perimeter controls shall be inspected by the city and the SWCD prior to grading. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 17 of 19 31. The grading plan shall be revised to show the location of the proposed rock construction entrance. 32. Street cleaning of soil tracked onto public streets shall include daily street scraping and street sweeping as -needed. 33. The estimated total SWMP fee based on 2006 fees, due payable to the City at the time of final plat recording, is $28,670. 34. The owner/operator of the proposed development shall apply for and obtain permits from the appropriate regulatory agencies (e.g., Riley -Purgatory -Bluff Creek Watershed District, Minnesota Pollution Control Agency (NPDES Phase II Construction Site Permit), Minnesota Department of Natural Resources (for dewatering), Minnesota Department of Transportation, Minnesota Department of Health) and comply with their conditions of approval. 35. At least one tree is required in each front yard. 36. A landscape plan denoting areas of sod shall be submitted to the city. Common areas must be sodded and provided with irrigation. 37. Native plantings will be required along the northern edge of the development parallel to the wetland and Bluff Creek. These plantings shall be species selected from the Bluff Creek Management Plan planting list. A revised landscape plan shall be submitted prior to final plat approval to the city for approval. 38. Applicant shall increase understory plantings with the bufferyard areas to meet the minimum number of plantings required." 39. The developer must obtain permission from MNDOT before performing any work within the MNDOT easement. 40. The developer must obtain permission from Metropolitan Council to perform the proposed grading within the sanitary sewer interceptor easement. 41. Prior to final plat consideration, the developer must show the overhead utility easement on the plans. 42. The building footprint must not lie within the overhead utility easement. 43. The developer must comply with any setback requirements the overhead utility company imposes. 44. The lowest floor elevations for Lots 1 through 4 must be raised to a minimum elevation of 963.1'. This condition may require a different housing type (SE, LO, R). 45. The lowest floor elevations for Lots 5 through 12 must be raised to a minimum elevation of 958.5'. Developer must modify 100 -year elevation for Bluff Creek. Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 18 of 19 46. The final grading plan must identify an emergency overflow location and elevation for the proposed pond. 47. The grading plan must be adjusted so that soil grades are minimum 2%. 48. The proposed grading north and west of Lot 12 must be adjusted so that the drainage swale will not direct runoff toward the backs of Lots 11 and 12. 49. The six foot high berm on the east side of the private drive must be shifted to the east to provide minimum five feet of boulevard space. 50. The developer must ensure that the final grading plan does not include driveways sloping towards the homes on Lots 11 and 12. 51. Driveway grades must be between 1.5% and 10% at any point within the driveway. 52. The developer must submit existing and proposed drainage maps. 53. Hydraulic calculations must be submitted with the final plat submittals and must include storm sewer inlet capacity analysis to verify that 100% of the runoff from a 10 -year event can be captured. 54. Prior to utility installation the developer must obtain a permit from Metropolitan Council to connect to the interceptor sewer. 55. The storm sewer installed with this project shall be privately owned and maintained since it does not serve public property. 56. Advanced warning and traffic control measures required during the watermain connection must comply with the latest addition of the Minnesota Manual on Uniform Traffic Control Devices. 57. The developer must submit a financial security with the final plat to ensure the restoration of West 78`" Street and the bituminous trail. 58. Each new lot is subject to the sanitary sewer and water hookup charges. These fees are collected with the building permit and are based on the rates in effect at the time of building permit application. The party applying for the building permit is responsible for payment of these fees. 59. The lowest floor elevation of each unit must be shown on the utility plan. 60. Snow removal from the private drive must not encroach into the public right of way. 61. Storm sewer manhole at west driveway entrance should include a 3' sump." Galpin Crossing Twinhomes Planning Case 06-13 May 2, 2006 Page 19 of 19 C. "The Planning Commission recommends approval of a Conditional Use Permit to permit development within the Bluff Creek Overlay District subject to the following conditions: 1. The grading plan shall be revised to eliminate grading within the first 20 feet of the setback from the primary corridor. All structures shall maintain a minimum 40 -foot setback from the primary corridor. The plans shall be revised to show that the structure on Lot 12, Block 1 meets the required 40 -foot primary corridor setback. 2. Outlot A shall be protected in perpetuity through the dedication of the outlot to the City of Chanhassen or by the recording of a conservation easement, to be approved by the City, over the entire Outlot A." ATTACHMENTS 1. Findings of Fact and Recommendation. 2. Development Review Application. 3. Reduced Copy Existing Conditions. 4. Reduced Copy Preliminary Plat. 5. Reduced Copy Preliminary Grading and SWPPP Plan. 6. Reduced Copy Preliminary Site and Utility Plan. 7. Reduced Copy Preliminary Tree Inventory/Landscape Plan. 8. Reduced Copy Preliminary Buffer Yard Planting Plan. 9. Email from Larry Martin to Bob Generous dated April 25, 2006. 10. Email from Lance Erickson to Bob Generous dated April 26, 2006 11. Affidavit of Mailing Notice, 9:tplant2006 planning casest06-13 galpin crossing twinhom \staff report.doc Planning Commission Meeting —May 2, 2006 McDonald: Does anyone on the council have any comments they wish to feed in? Okay. There are none. Then I would accept a motion from the council at this point to possibly table this issue until June the 19th. Haak: It would be the June 20`h meeting. McDonald: June 20`h, okay. Papke: Mr. Chair, I'd make a motion that the Planning Commission table the public hearing for the surface water management plan until such time that all comments are reviewed, which was June 19d? McDonald: 200' . Papke: 20th. McDonald: Do I have a second? Keefe: Second. Papke moved, Keefe seconded that the Planning Commission table action on the Surface Water Management Plan update until the June 20, 2006 meeting. All voted in favor and the motion carried unanimously with a vote of 6 to 0. AGRICULTURAL ESTATE DISTRICT A2, TO PLANNED UNIT DEVELOPMENT, 06-13. Public Present: Name Address Gerald P. Wolfe 7755 Vasserman Trail Tom Ernst 7749 Vasserman Trail Charles & Gail Geflno 7729 Vasserman Trail Larry Martin 7725 Vasserman Trail Bonnie Anderson 7732 Vasserman Place Mark Magnuson 7715 Vasserman Trail 3 SCANNED Planning Commission Meeting — May 2, 2006 Bob Generous presented the staff report on this item. McDonald: Thank you. Does anyone on the council want to start with questions? Papke: I've got a couple. Page 2 of the staff report describes, there's a paragraph in there, under a perfect scenario the use for open space and storm water ponding in conjunction with the southern parcel allowing us to get an intensification of the use on the parcel adjacent to Highway 5. Could you provide a little more color and background to that? I mean it sounds like we're settling for something other than the optimal. Generous: Right. Unfortunately the developer has chosen to split these two projects. While the site is developable, they're not taking any of the density credit that they could have or impervious surface credit out of this thing so right now we propose only to look at this one so we have to look at first, what's the appropriate zoning on the property and whether the subdivision that's proposed complies with that zoning. Papke: Okay, so to kind of sum it up in my own brain here, the developer has a choice of either developing the plat on the south side of the frontage road very high density and then leaving this open, or kind of spreading out the density between the two and he has chosen to do the later. Generous: To do the residential along on the north side and then, they have a concept plan for an office park on the south side... impervious cover on density of development. Papke: Okay. It was kind of in the staff report about the narrowness of the, the area between the private street and the public street and issues with snow removal and not banking up. Are we well within all of our design standards for the width of that strip of land between the private street and the public street? Are there any issues or concerns with that or any precedent on something of that size? I mean it looks pretty darn close to the public street. Fauske: Commissioner Papke. The ordinance doesn't specifically stipulate that back from right- of-way to public, pardon me, to a private street. Staff s intent was just to bring this to the developer's mind that this is an issue in staff's mind and that they need to accommodate snow removal within their development. Typically in a development like this they will be trucking the snow off the site just because there's the constraints of the site that they have right now. We just wanted to make sure that that was just a concern staff had and to have a plan in place for snow removal. Papke: Okay. On page 4 of the staff report, under the rezoning it mentions an exchange for the enhanced flexibility. Your expectation will result in a higher, significantly higher quality standard. Where, can you comment on where do you feel we are gaining this equality on this particular development? Where are we getting the up side? Generous: Well the up side we believe is the providing of the design standards that the individual units would have to comply with of stone, brick and access material on the front... they have windows in the garages. aauaaas 4 Planning Commission Meeting — May 2, 2006 Papke: Okay, and are all those things stipulated in what we're reviewing tonight or are any of these just things we're going to hopefully. Generous: Well under the development design standards which begin on page 5 and 6 and they're under building materials. Papke: Okay. We don't have any examples of what they're doing or anything at this point? Generous: Not at this point because they've not given a site plan so we were trying to develop what we'd like to see as a part of this as opposed to, to the subdivision... Papke: Okay. Page 6. Streets and access. First paragraph. We have this interesting little cul- de-sac right off the, you know that makes up part of the private street off the main street. Is it the intent that there will be an access into the office industrial area directly across from that when that is developed and what's in place to make sure that that happens? Generous: That's being hampered by what's in place that as part of our review will require that. Papke: Okay. Question on page 8 of the buffer yards. I didn't quite understand where you state in the report that the applicant has submitted less boulevards but the spacing is preferable to 30 feet. Can you explain why 50 foot spacing is better than 30 foot spacing? It seems counter intuitive. Generous: What I got from Jill as to why the, in the median areas to be filled with understory type growth as part of this development proposal rather than just having... tree every 30 feet versus our standard boulevard design. It was more natural feeling and worked through the whole development. Especially what's required that they provide additional native plantings in the rear of the site. Papke: I'm not quite following that because in the proposed column of the table, all of the understory numbers are well below the required numbers, so I'm not computing how that adds up. How you're saying, you know you're saying that we're getting more understory stuff but all the numbers don't add up to looking like that. Generous: And I knew they'd have to, they're going to have to bring up those understory numbers to meet the minimum for that. Papke: Is there, I don't recall, is there a condition in here to stipulate that? Generous: Only that they provide the revised landscaping plan. Papke: Okay. So only another. Keefe: Well the 30, which was the applicant shall increase understory plantings with the buffer yard areas to meet the minimum number. Planning Commission Meeting — May 2, 2006 Papke: Okay, okay. So that's it. Keefe: Condition 38. Papke: Okay. But I still, even if they bring it up to the required amount, I don't see how just making the required amount offsets the increased depth between the trees. I'm still not. Generous: I believe Jill's thought is, you know move space between the overstory trees you'll get a healthier and larger tree as it grows because they won't be crowding each other. Our buffer yard requirements can be pretty stringent, especially if you confine it to a narrow area. Papke: I'm just not used to having less trees being better. Okay. We're going to have to come back to that one at some point. I think this is my last one, hopefully. Page 9 of the staff report. The last sentence here says that storm water ponding must be constructed for the additional post development runoff when the property south is developed. Who does that? How do we guarantee that? How does that happen? Generous: Well the developer would be required to provide ponding on the south side of the road when that develops that would not allow, increase the impervious runoff to the north. Papke: So the storm water ponding would be on the south side. It kind of reads like you're expecting more ponds to go in on the north side when that's developed on the south side. It's just kind of, am I just confused how I read it? Fauske: I apologize Commissioner Papke, you're correct. That should have read that the storm water ponding must be constructed on the south parcel for the additional runoff under post development conditions. Thank you. Papke: Okay, got it. That's all I've got. McDonald: Okay, thank you. Kevin. Dillon: Yep, under the recommendations number 2, a cross access and maintenance agreement shall be recorded over the private street. What are the usual, what are the terms of that? Or what would. Generous: Specifically that the benefiting properties are responsible for snow plowing and maintenance of the path and they share the costs over the... property. Or over the entire development. Dillon: So that means that the city would require that, the developer with the owners of the property? Generous: Well the only way they would as part of their agreement, as part of purchasing their property they'd enter into the association and they be responsible for all the maintenance with that. But then it also gives them the rights to use it ... across the common open space. 0 Planning Commission Meeting — May 2, 2006 Dillon: Okay. And there's going to be 12 homes accessing the private road. What's the usual number that you get from just like one per driveway? Is that the? Generous: Well under single low density you get single family homes, we have 4 and that's part of the application... because we treat twin homes like single family. So they have 12 total coming into this. If we go to townhouse development, then there's no such prohibition and you can have as many ... the development has proposed in there within reason to get ... under, even though we consider a lot... Dillon: So on the private road, and they've got an agreement in place. How does the, you know years from now, when the road might be needing repairs and stuff like that, how do we ensure, how does the ensure that it's properly taken care of even though the city residents wouldn't necessarily be driving on it every day. It could be an eye sore or something like that if it wasn't. Generous: Primarily it will be the association responsibility but the city does have a property maintenance ordinance that requires that if things are left in disrepair... and the city will be able to go tell them that there's too many potholes there. But primarily the association would give them, when you're in an association you pay a fee into your association for maintenance and upkeep. Part of that is for capital replacement costs. Dillon: That's all. McDonald: Okay. Keefe: I just had a couple. The PUD -R, there's a trade-off of setback. Relaxation of setbacks for increased design. What will that allow us to do on that? I'm not sure. Generous: Well yes, because under the PUD they don't have to make the lot meet a specific rectangular area so they're just platting around the unit and creating more common open space. Under a typical zoning and subdivision like for R-4 you need 10,000 square feet per unit or 20,000 square feet so you create a rectangle that's 20,000 square feet of that and yes, what they did is they... Right now we have a 50 foot setback from West 78`" Street to the structure and under that you would be able to do... Keefe: Okay. And then what we get back is a better design. Generous: And we believe that will give a higher quality structure. Keefe: Okay. The condition 44 and 45 address the grading, you know and raising the lowest floor elevations. I think 45 it says, the developer must modify the 100 year elevation for Bluff Creek. What is the 100 year elevation for Bluff Creek, do we know what the number is? Generous: No. They need to verify it. 7 Planning Commission Meeting — May 2, 2006 Keefe: I'm just a little concerned that we don't know what that elevation is and that what if it comes back at 965 now? I don't know what the number is. I mean does it need to be at 30 feet above the high, 100 year? Generous: When that's ... final plat they have to verify that. Keefe: So I'm just wondering if these zoning, instead of stating the actual number in there, does it need to be 3 feet above the 100 year elevation? Generous: Well we believe the 100 year elevation is lower from that. We're going from the wetlands... Keefe: Yeah. I'm just wondering what this site, and it's a fairly, you know all the way across it's kind of low. You don't have a lot of and so, you know I presume they're based against the lowest elevation, you know 957 it looks like. Are we going to have a water issues particularly in light of what we saw last summer? And even here the last couple of days. I don't know if we got just as much in the last couple of days as we did in September, but I guess, so ... it has to be above the 100 year. Generous: Well our ordinance already states that. They need to meet a 3 foot separation. That is based on our current information. I believe 958.5 will satisfy the... Keefe: Okay. I think, isn't there a sidewalk going across the north side of this? Is there a requirement to replace that or how does that? Generous: Yes if they destroy it... Keefe: Is there room to do that give you know where we're at here? I mean it looks like the private street goes, it looks like a bituminous path is there already. I just want to make sure that we've got. It just seems like there's a lot going in but it does look like... If we state in the conditions... that they need to replace the pad. I'll look for it while we ... find it. McDonald: Okay, Debbie. Larson: Well I just have one, because I think pretty much everything else has been covered. Regarding the, oh are you done? Keefe: Yes. Larson: Oh I'm sorry. Wetland buffer listed on page 9, towards the bottom. Talking about the 16'/2 to 20 feet must be maintained around Wetland 3, and then I'm looking and I'm not clear on, it looks as though, now is Wetland 3, is that the one that's the most north? Generous: Yes ... Outlot A. Planning Commission Meeting — May 2, 2006 Larson: Okay. Then there's a pond that's just adjacent to Lots 3 and 4. Does that not apply to that, because it looks so close to those two units. And I can't see. Generous: There's no buffer requirement from storm water ponds. We did push for ... as part of their revisions ... was our concern that the unit was getting too close to the storm water pond. Larson; Okay. Generous: Yeah, then ponding next to the wetland, we do that all the time because that's the recharge for that too so ... overflow and this would go right into... Larson: Okay. That was the only concern I had. Undestad: I've just got one question for you Bob. The southern parcel on there, how many accesses onto 78"' in that? Generous: They only have one onto West 78`s, and I believe one onto Galpin. Undestad: And will that line up with the one? Generous: Yeah, we created... McDonald: Thanks Mark. Dan, do you want, what you wanted to ask? Keefe: He answered it. McDonald: Okay. I've got a couple of questions for you. When this originally came before us and we were shown some preliminary drawings there and everything. There were fewer units. We've increased the density on this particular site, and I know that was one of the concerns we had before was even with the numbers that were presented before, we thought that may be, it'd been crowding it but again because it wasn't any kind of final drawings we withheld judgment until we could see some detailed plan. Now it comes back and there's more units and you begin to look at this and it does look as though you're trying to fit 5 pounds in, or 10 pounds into a 5 pound box and what's the trade-off for us? Why, I mean is it the design standards? Are they allowed to do this per the ordinance or what's the thought process here of allowing this to increase in density? Generous: Under the concept plan you are correct, they did show 10 units. 5 twin homes. However there was no approval on the number of units there. The conditions were show that ...appropriate but show that you can comply with all the ordinance requirements. ...and it looks like it complies with the ordinance except for some changes to the elevations. McDonald: Okay, because I guess I'm really concerned about, you get to Buildings 3 and 4, the way that they're in there next to you know Buildings 1 and 2, and that got me starting to the thing about setbacks and everything. How does this begin to meet those? What are the requirements there for spacing between homes? Planning Commission Meeting — May 2, 2006 Generous: There's nothing specific in the ordinance on that. It's more a building code issue from, if you're within 3 feet of a property line and you have ... If this is platted, this individual lots under R-4, you'd have a 10 foot side setback... 10 foot separation. Basically we responded to the applicant's proposal, given that the criteria we had ... Bluff Creek Overlay District and the West 78 Street, and meeting the 50 foot setback from West 78'h Street. And this is what.. McDonald: Okay. Okay, you may have kind of answered my next question because you said something about the impervious surface area and that if we looked at the entire lot, I think you said they were only at 27%. Is all of this kind of one lot? I mean we're not looking at putting a percentage of hard surface on a particular area? Are there lots here for these twin homes or are they really kind of shared one lot? Generous: Each of the units would have it's own lot around it, but then they have Lot 13 which we're proposing they designate as Outlot B would be a common lot. And that's where the majority of the driveway is. So it's averaged over the entire project. Like I stated currently, they're under I believe 23% right now. As they're proposing it with all the house pads and all the driveways that they have, including the minimum 25 foot deep driveway, and my analysis was, if they were to fill each of these lots fully, 100%, they wouldn't meet the 30%. They wouldn't reach the 30%. McDonald: Okay. And then you said one of the things that we were doing as far as going along with this is that we get a say in design standards. Then you mentioned about windows in garages. We had a discussion last week with a builder that was in here where we tried to get windows in garages put in there and we couldn't do it. Why now can we do it with this development? Generous: Because that's the design standards we're proposing. He can accept it or not. McDonald: Okay. Keefe: Part of the zoning. Generous: Yeah, this could become the design standards for the zoning for this property.. McDonald: Okay. Thank you for your answers. I have no more questions. Does anyone else back on the commission have anything before? Then at this point I guess we'd like to hear from the applicant. If you'd come forward and state your name and present your case. Mark Scholle: Good evening commissioners. My name is Mark Scholle. I am the engineer on the project and I'm here representing Epic Development tonight and basically I took some notes on some of the questions that were brought up and I can kind of clarify some of that stuff from my standpoint, and then from there if there's any other questions, I'd be willing to take them after that. One of the concerns that was brought up was the grading and the adjustment in the low floor elevations on the units. We have taken a look at the grading plan scenario and we are planning on making those adjustments. The high water level elevation on the Vasserman Ridge 10 Planning Commission Meeting — May 2, 2006 project is known, and we actually tried to find out what the high water level was for the Bluff Creek corridor and we were actually told it was the 955 elevation, so that's why the low floor elevations on those units are up at the 958.5, so that's where that came in. The question on snow storage. We did lay out, even though the way the site is platted doesn't really clearly show the different setback from, or the minimum widths for the private street or setback from that. We incorporated the setbacks that were in the concept staff report, or the standards that were set with that staff report with a concept approval, so we incorporated all the conditions that were in that to do this layout. There was a question about you know why did the developer choose to bring the north side versus the south side. Really I'm kind of speaking for the developer here so I hope I'm correct but I know that the developer wanted to bring in both at the same time. However, due to the city wanted to undergo a market study, city wide market study so we were asked to hold off on making further submittals on that to see what the results of the market study would be. So we proceeded with the north side since it was residential. Since we were proposing residential and it met the zoning. Other than that, I think if there are any other questions I'd be happy to answer. McDonald: Okay, thank you. Commissioner Papke, do you want to start? No questions? Dillon: What is the target price range for the homes that will be put in here? Mark Scholle: I personally can't really answer to the target price range on the homes but I do know what is planned to be put in. The type of unit that would be put in there would be similar to what's over on, to the west on Vasserman Ridge, but I can't, I guess I can't speak to the pricing of the units. Dillon: Okay. McDonald: Dan? Debbie? Mark? Undestad: I've just got one for you. Raising all those units, you know some of those 5 feet or 4 feet down there. Do you have material on site to balance that out or is that, you going to bring in a lot of fill on that thing to raise those up? Mark Scholle: Well I anticipate that we'll be bringing in some material to not only bring up the units a little bit but also there's going to be some correction involved with that site anyways. There's some, there is going to be possibly some excess material on the east side of the site that we can bring now into that area, but I would anticipate that we're going to be importing material to bring that in. Undestad: Okay. McDonald: I've just got maybe a questions for you. One of the concerns about the private street, and the way the driveways and everything come off of that is, what do we do for guest parking? Has any of that been accommodated in the plan? 11 Planning Commission Meeting — May 2, 2006 Mark Scholle: Well I know that the, we have laid the plan out in regards to the standards that were set. The width, I think what the plan would be for that is a guest could park in the driveway. McDonald: Could guests also park across the street then? Would that be part of, and then walk across? Mark Scholle: Yes. McDonald: Okay. That's going to be all the questions I have at this time then too. At this point, with no further questions we would now throw this open for public comment. We would invite members of the audience to come forward. State your name and please address the commission. Larry Martin: Chairman Keefe, commissioners. My name is Larry Martin. I live at 7725 Vasserman Trail. On your diagrams there I am Lot number S in Vasserman Ridge. I want to speak to four items tonight. They are the density, the issue surrounding the private street, the landscaping and tree situations, and also the power line issue that I think is severe. hi my comments I will be referring to the finding of fact items and I will be relating each of my items to a finding of fact item where you can interpret the situation to the finding of fact. First let's talk to density. As Bob talked earlier, this area is guided for low density. R-4 would be 10,000 square feet. RLM 7,200. These are numbers that are in your report there. And the proposed is 3,750 square feet per unit. So you can see each unit is substantially below what the zoning things would be and I agree that PUD -R is probably the right classification for this and in order to go forward with it, but the density is very high. This is a 6 acre site, but if we look at some of the spaces, if I can have this put up here. The peak units there, actually occupy about 1 acre of the 6 acres. The outlot, area outlined in yellow is another what, 2-2 1/2 acres or so, and the green area is another 21/2 acres or so. So I don't know how you do the math and things like this. There's probably standards for doing that in the industry and in development and stuff like this, but it looks like you're putting 12 units on 1 acre. That is a substantial density. We think that the spacing on those units is not consistent with adjacent units, and I'd refer you to finding of fact items 70) and 5(b) to refer to that. On Vasserman Ridge I'm blessed to have a larger unit. I have 17,500 square feet in my townhome unit. I don't think there are any under 10,000 in Vasserman Ridge, so when we're looking here at 3,750, it's also the way these units are placed. When you place the air conditioning units and other mechanical units outside of them, you're really going to be putting things together. Some of the drawings that you have show you what the blacktop pavement into the garages are. If you look at that, you'll see that substantially all of that area in front is blacktop. There isn't much room for grass or plantings or other things. So it would give a very what? City feel to it. A downtown Minneapolis feel to it or downtown some city. We think that the density on those is overly crowded. As Chairman McDonald brought up, the original was for 10 units. We're now at 12 units. Another item I'd like to address is the private street. As you know the guideline for that has been stated is no more than 4 homes. There are 12 units put on this private street. We hope that there will be a homeowners association there, and I'd like to suggest that as part of the developers agreement, the covenants for that homeowners association be included so that this snow removal doesn't get to be a problem. It was brought up by, I think it was Commissioner Dillon there that the distance between the street and the homes is minimal. Keep in mind what we're going to have here is 12 Planning Commission Meeting — May 2, 2006 we're going to have a boulevard. We're going to have a trail system. We're going to have another separating item. We're going to have a street, and then driveways and the homes. The driveways will be substantially smaller than driveways in adjacent places so, there might be, well there will be an opportunity to park one car in there, but you're right. There is no opportunity for guest parking. The private street here that they're putting in is 1 1/s football fields long. About 450 feet. That's a long street. For snow removal you can imagine that overnight if we had a 10 inch snowfall, the person who's living down there in Unit 12 is going to have quite a difficult time getting from their townhome unit out onto the street. The way they have designed this little cul-de-sac going into the unit, looks like a round bubble going into there. If we did put a development across the street, and I think that is proposed, that's probably going to have medians and tum lanes in it. Across the street here you're going to have another unit that's this bubble that's going onto there that people can go, so the traffic isn't channeled very well as it goes into there. Also I can foresee that when that office complex goes in, some type of traffic control might have to go in there. Be it a 4 way stop or whatever. I think those considerations should be looked at and should be taken care of as part of the initial plan here. The amount of blacktop I think on the driveways and on the private street would have very little aesthetic appeal. Let's see. We have up at Galpin Boulevard and 78`h now a U tum problem, and I know when we talked about the office complex, your right-inhight-out, left -out's and everything, they're going to all get confused and so there's going to be a substantial U-turn situation that's created there and that would be opposite this street into the townhouse. The landscaping, presently there are 4 to 5 large willow trees on the west hand side of the park property. My understanding is, and I could be corrected, the object is to come into the site and clear cut the site of every tree. That's going to have to be done because of the filling and things that they're going to have to do. We're happy that as part of the agreement they are looking at landscaping on the west hand side there, but the other thing which concerns me is the whole landscape maintenance in what's now Lot 13 and also Outlot A there. On the west side of the property is a power line. If you look at Unit 3 here, I believe that power line, the roof of that would be about 20 feet from the power line. Somebody could reach up with a long pole and touch the power line. Don't know what Xcel Energy's requirements are for that. They have the easement under the lines there but I think that this is being crowded into that power line. The private street, I would refer you to items 6(d) in finding of fact. We talked about that. Also item 4(f) and item 7(h). In conclusion, I feel that granting a private street here of this length is problematic and in the years to come it will, we would look back and see that that is not probably the best way to go. As far as the density is concerned, I feel these units are right on top of each other. They talked about the raising of the units up 3 to 5 feet or whatever works out. If you look at your plans you'll notice that the pad heights on the first floor of the home are now about 4 feet above the street, so in 50 feet or so we're going to be raising up 4 feet or so. It was talked about for some of the units, I think 1, 2, 3 and 4, that they might have a different architectural design on there. Well there goes the benefits of our PUD out the window if they're going to have different architecture there and different architecture for the other units. I think that goes out the window so. In conclusion, I think the density is too high for the site. It's not consistent with the area. It's not consistent I don't think with Chanhassen's neighborhood communities. There is no neighborhood of these townhouses. They're just units that are put there. I don't know where children would play. I don't know how families would get together. There'd just be blacktop in front. A private street is problematic. I'm not happy that they want to clear cut those existing 13 Planning Commission Meeting — May 2, 2006 willow trees that are there. And I think the power line issue needs to be looked at further before any approval is granted. Thank you for your time. McDonald: Thank you for your comments. Does anyone else wish to get up and address the commission? Okay, seeing no one else. Gerald Wolfe: I'm Gerald Wolfe. I'm on 7755 Vasserman Trail. Lot number 2 that's even with the property. I think I'd just like to reiterate what Lary said for the most part. I do, I'm concerned about those willow trees. If you've been out to the site at all you'll realize they're probably 30 feet tall, if not taller than that. Whatever they replace them with, it will be 25 to 30 years before we've got trees that size again and I probably won't be around to see them. There's a statement here under grading and drainage on page 8 that says the soil bore reports says there's approximately 2 feet of peat that exists south of the wetland and that that's all going to be taken care of. We had the benefit of snow on the ground, what little bit of snow we had this past winter, when they did these soil bores so we saw where the truck drove around the area when they did the soil bores. All the soil bores were done on the south side of West 78'". There were no soil bores done on this property. That I was aware of. If they did them, they did them very lightly on their feet, because there were no marks from trucks. I question where the high water mark was in the 1987 super storm. Did we go above the level that they're planning to build these basements? Let's see, what else did I write down here? Oh, the setback, the 5 foot between the private street and I suppose the trail. I find it hard to believe that you can plow snow and only have it be in a 5 foot width. And hauling out of there is going to be extremely costly to an association of only 12 units, and I am also upset about the 12 units since we had a 10 unit proposal in November. I work with a person who lives in a oh gosh, is it 12 or 14, no 10 unit. She lives in a 10 unit townhouse complex over on Mitchell Road in Eden Prairie just, or Baker Road actually. Just north of Valley View Road on the east side. And they're very nice townhouses. They sell in the $450,000 bracket right now. And I asked her today about their association. And she has lived in it since it was brand new. They did not until this year, and that's like 15 years now. This is the first year that they are now starting with their association to build up a reserve. In the past they have not done it at all, and even without that, their association dues are $230 some dollars a month. And for the most part they individually take care of all the sealcoating of their driveways. They take care of all of their own personal landscaping. Pay for anything they want done to that, so none of that is included in their association dues. They just do that all above and beyond so this could become a pretty costly association for these people in my opinion, so that's my piece. Thank you. McDonald: Thank you very much for your comments. Does anyone else wish to get up and address the commission on this item? Okay, at that point then I will close the public meeting and I will bring the issue back before the commission for a discussion and a vote. Mark, would you like to start the discussion? Undestad: I think the densities seems to be an issue all the way around. Although with a PUD you know they're allowed to, we get the clustering of the homes in order to spare the green area elsewhere on there, and it sounds like even if they did hard surface on everything out there, they're at what, 21, 27 percent. They do look like they're jammed in there a little bit though. I mean I don't know if things were looked at with the applicant going back to a 10 unit 14 Planning Commission Meeting — May 2, 2006 development back there, but it might be something to take a peak at. There are some issues in there. The snowplowing and the maintenance issues. The minor green area between the walking trail. I mean you can kind of get an idea of how that might take place and it's going to go off the driveway, off the green area and the next road over is the walking, the bike path trails in the winter time on there. On the other hand I have to go back to, it's being created as a PUD so the standards that have been set in the negotiations with the city and the developer as the PUD then, I'm okay with those. I think the only issue I'd have maybe is possibly looking at that density yet. McDonald: Okay, thank you. Debbie. Larson: Okay, I've got a couple things. Who was the first gentleman that stood up? Mr., thank you. I was also somewhat concerned about taking out all these willow trees, especially if they're as large as they are and I don't know if there's any way getting around that. But that would be something that I would like a little bit of looking into. He also pointed out that there was no green on the front but the way I'm looking at the picture, it looks like there's green inbetween, unless I'm looking at this wrong. Are the driveways in the middle or are they on the sides? And I was under the impression that the driveways are on the sides of the units, with the exception of 1, 2, 3 and 4, but the other ones tend to look like they're on the side so that would look like a green area inbetween, to me. Let's see. And the other thing is, are there any things put in place, ordinances or whatever or would it be just at the discretion of the owner to put trees in the front yards of any of these because it doesn't look like any of those trees, other than the ones inbetween units 6 and 7 are out front. So I can understand how it would, we're going with not much in the way of planting in front of the buildings and is that something that can be considered or? Generous: There is a condition that each unit have a tree in their front yard. Larson: Okay, because I'm not seeing it on here. Generous: No it's not on the plan. It's a condition of approval. Larson: Oh I see, okay, okay. Generous: So they'll revise it. They're supposed to revise it... Larson: Alright. Generous: To incorporate any conditions in the final plat documents, construction plans. Larson: Okay, but is there any way that we can save any of these willows? I'm sure if they're. Generous: That would be grading. Fauske: Yeah. In that area it's really area it's really a challenge. I believe, and I apologize. I just have the small plan set but I believe the willow trees are on the west side there on the 15 Planning Commission Meeting —May 2, 2006 property line. And that's really a challenge when you look at the grading operations. They also have a storm sewer proposed through there, and in order to build that site up for the 5 foot match in at the property line, get your storm sewer and that, tree preservation is certainly one of the most difficult things along those areas so that was the challenge I believe. Larson: Okay. I mean because willow trees, I mean I have some that grew from, I think I sprinkled some pussy willow seeds probably 7-8 years ago and it's quite large in my back yard now. I didn't realize that's what it was. But I think they grow a little faster than 30 years to get up to the height you're talking but. Anyway, that was all I had. McDonald: Okay, thank you. Dan. Keefe: Bob again, just a couple questions for you. One of the questions that was brought up was the length of the private street and the number of houses that can be on a private street. Is there any limitation associated with that? Generous: The length of streets are generally the fire marshal's concern. He didn't have an issue on this. Especially that they're going to be sprinklering these. Keefe: And it's right along 78`s so. Generous: Yeah, accessibility wasn't an issue as far as the fire marshal was concerned. It was more aesthetic. We were concerned with... and that's also one of the reasons we made them redo the landscaping plan to show that buffer yard in there. Keefe: Yeah, but there's no, nothing zoning about the number of houses which can be on a private street? Generous: Our ordinance was recently revised to allow a maximum length to 800 feet. For cul- de-sacs. Keefe: Right. It looks between building 3, 2 and 3, there's like, I don't know what the distance is between those two buildings. It looks like you've got, I think it's a zero setback between buildings or something in there. Generous: Two property lines, it's, the way it's ... we're saying is there's zero setback on the individual lot. There is separation requirements though for the lot to the house like you get in the fire codes and stuff. Keefe: That's what I was wondering in regards to those. Do those meet, do they meet by the fire marshal? Generous: Yeah, as far as he could at this level. Keefe: I don't know how you navigate in there. TI Planning Commission Meeting — May 2, 2006 Generous: Also the lot lines look a lot different than the actual structure because they're actually separating their structures from the lot lines because remember they're building from the common line out. Keefe: Right. Okay. And other requirements for an association that we could add as part of the PUD, is that typical? Generous: Well it would have to ... directed towards the association. Because the development contract conditions go with the property. Keefe: Just in terms of comments. I just feel like this is, I think it probably meets, well from our perspective it probably meets what we have to approve but I'm uncomfortable with just how tight the site is and all the various issues. Private street. Easement associated with electric. The low condition of the site. Access to the site. Willow trees coming down. I'm just generally uncomfortable with it but I don't know that we can, if it meets the conditions I guess we're in a position we have to approve. Generous: It's a planned development so you do, your interpretation could be that. What our expectation is different than this... What I drafted in here is a starting point and I wanted everyone, including the developer, is acceptable. Keefe: Right. Generous: Do we need to be more stringent? Less. I thought they were pretty good with developments over time, but they're... changing technologies have evolved. Market conditions. Things change. Keefe: Right. Okay. Dillon: My only comments are, I'm still just curious as to what the target price is going to be and who the target market is going to be and just you know someone to answer the question why would they buy a home in this development versus some other one. I just, maybe that's not the role of the commission so much but just a bit of curiosity that I have is, and it just helps to go into the decision making process so, the next time around if someone could answer those questions, that would be great. And also just to comment on a couple of comments on, you know it does seem like a pretty long street. Not that many houses. You know I think the owners will just have to have their expectations set properly. They probably won't be inexpensive in terms of a local fee to keep that thing, but that's again probably not necessarily the concern of, as a commission member but we, I am concerned about the overall, if we do this, the overall marketability of the project. That people will be able to, you know won't, they'll go buy it and just won't sit there and sell. McDonald: Kurt. Papke: I'm really struggling with the density of this one. In a lot of cases the Planning Commission is kind of getting to what Commissioner Keefe was alluding to before, our hands 17 Planning Commission Meeting — May 2, 2006 are tied when we don't have much discretion when the developer meets all the setbacks and so on. I want to make sure I understand what our discretion is. What discretion the Planning Commission has in this case to accept your recommendation of the PUD -R. I'm concerned we're giving this developer a diesel power shoe hom to fit a dozen tiny little lots on this very small, wet site that's bellied right up to 78"' Street in perfect vision as you come down that street. What discretion do we have in rejecting your recommendation for this zoning? Generous: You can, the recommendation that this comply, it should be limited to 10 units. It should be limited to 8 units. It should not be ... PUD but straight zoning. Those are all options that the Planning Commission has. Papke: Okay. I'm tending, I'm feeling like in this case that we've settled for the lowest common denominator here. When we saw this concept proposal before there were 10 units. We had concerns with the density. We come back with 12. I don't get it and we went the wrong way. And like I said, we're giving the developer a shoe hom with the PUD -R to put in anything they want to, and it's not, at the 3,300 or whatever the average density is, boy that's, that's pretty dam tiny. So I'd, you know I'm an advocate of rejecting the PUD -R. I mean if we were, if our hands were tied behind our backs, I'd say sure, you know. I think the developer's done a good job of meeting the constraints that we put down here, but you know we don't have to accept this. McDonald: Okay. Well I guess with my comments I'll echo some of what you all have said. It's, I don't see where we have a lot of discretion based upon this. It's, we take this as it is or we have to go the other way, which we can do and we've done before. I think based upon this plan, I don't see how you can do it without a private street. I don't care for the private street in this particular case because I think parking's a problem. And again, City of Chanhassen has to enforce parking problems when people start to call in. Yeah, you can park across the street but I don't think residents are going to do that so I do believe that there needs to be some fore thought for the fact that people will have guests on the site, but again within the PUD -R it meets the requirements so I would go along with it. The density, yeah I'm a little kind of concerned about that too because it was, it was 10 and I thought it was a little bit packed at that point but again it wasn't a detailed drawing and we were going to work some things out because there were some issues with the Bluff Creek Overlay area but everybody knew where that was at and we'd come up with something. Looks as though we have again, I don't know. You get into marketability. I think to answer one of Commissioner Dillon's comments about that. That kind of begins to put us into a little bit of a design mode which we're really not, but yeah it's a good question to ask but we really shouldn't be setting price points. It's up to the developer to take the risk of putting something on a street such as this, and you're right. I don't think families are going to buy into it because West 78`s Street's just going to become worst. I raised concerns before about the U- turns down in the other outlot, but that's not part of this development so I won't bring it up, but traffic is an issue and I think that we had given staff a directive, you need to look at Galpin Boulevard as part of this whole development area. Yeah, if we're going to have an access directly across from this, what do you do? Is that going to be a traffic signal? Stop lights? I don't know but you know traffic becomes an issue. And it's just, if I sum it up, the problem I have with this is density. That's it in a nutshell. I guess it's up to the commission to decide what they want to do about it but if we're going to go along with staff's recommendations. Ido not see where we have a lot of leeway because again they've met the requirements for this type of Planning Commission Meeting — May 2, 2006 development so it would be up to us to look at something else. With that I will now take motions from the commission on this project. Keefe: What do we have 3 motions? Take them individually or together? I'll make a motion. The Planning Commission recommends approval of the Planned Unit Development Rezoning the property within the Galpin Crossing Twinhomes project from A2, Agricultural Estate District to PUD -R, Planned Unit Development Residential incorporating the development design standards contained in the staff report. McDonald: Okay, do you want to take this one at a time and vote on it one at a time? Generous: It's up to you. Well depending on what happens with the rezoning with the rest of it. McDonald: Okay. Let's take them one at a time then. Okay, you've heard the proposal that's before us. It's a recommendation A. All in favor signify. Keefe: It needs a second. McDonald: Oh, I'm sorry. Got ahead of myself. I need a second. Dillon: Second. McDonald: Okay. It is so seconded. We have before us recommendation A. Keefe moved, Dillon seconded that the Planning Commission recommends approval of the Planned Unit Development Rezoning the property within the Galpin Crossing Twinhomes project from A2, Agricultural Estate District to PUD -R, Planned Unit Development Residential incorporating the development design standards contained in the staff report. All voted in favor, except Commissioners Larson, Papke and Undestad who voted in opposition. The motion failed with a tie vote of 3 to 3. McDonald: Okay, I think that's 3 nay's and 3 aye's. So tie 3-3. Okay. Keefe: Move on, I take it probably a tie. Well, we'll just take one at a time. Letter B. The Planning Commission recommends approval of Preliminary Plat creating 12 lots and 2 outlots with a variance for the use of a private street and for more than four homes accessed via a private street, plans prepared by Ryan Engineering dated March 16, 2006, revised April 19, 2006, subject to conditions 1 through 62, correct? Since you added one. Generous: We added one. McDonald: We have 62? Okay. Do I have a second? Dillon: Second. 19 Planning Commission Meeting — May 2, 2006 Keefe moved, Dillon seconded that the Planning Commission recommends approval of the Preliminary Plat creating 12 lots and 2 outlots with a variance for the use of a private street and for more than four homes accessed via a private street, plans prepared by Ryan Engineering, dated March 16, 2006, revised April 19, 2006, subject to the following conditions: 1. Designate Lot 13 as Outlot B. 2. A cross -access and maintenance agreement shall be recorded over the private street. 3. A 10 -foot clear space must be maintained around fire hydrants, i.e., street lamps, trees, shrubs, bushes, Xcel Energy, Qwest, cable TV and transformer boxes. This is to ensure that fire hydrants can be quickly located and safely operated by firefighters. Pursuant to Chanhassen City Ordinance #9-1. 4. No burning permits shall be issued for trees to be removed. Trees and shrubs must either be removed from site or chipped. 5. Yellow curbing and "No Parking Fire Lane' signs will be required. Contact Chanhassen Fire Marshal for exact location of yellow curbing and locations of signs to be installed. Pursuant to Minnesota State Fire Code Section 503.3 and 503.4. 6. Dead end fire apparatus access roads in excess of 150 feet in length shall be provided with an approved area for turning around fire apparatus. Submit turn around designs to City Engineer and Chanhassen Fire Marshal for approval. Pursuant to Minnesota State Fire Code Section 503.2.5. (Exception: the code official is authorized to increase the dimension of 150 feet where the building is equipped throughout with an approved automatic fire sprinkler system installed in accordance with Minnesota State Fire Code Section 903.3.1.1, 903.3.1.2 or 903.3.1.3). 7. Fire apparatus access roads and water supply for fire protection is required to be installed. Such protections shall be installed and made serviceable prior to and during the time of construction except when approved alternate methods of protection are provided. Pursuant to Minnesota State Fire Code Section 501.4. 8. Fire apparatus access roads shall be designed and maintained to support the imposed load of fire apparatus and shall be serviced so as to provide all-weather driving capabilities. Pursuant to Minnesota State Fire Code Section 503.2.3. 9. The new proposed street will be required to have a street name. Submit proposed to street name to Chanhassen Building Official and Chanhassen Fire Marshal for review and approval. Pursuant to Minnesota State Fire Code Section 503.3. 10. An additional fire hydrant will be required. Maximum spacing is 300 feet. Contact Chanhassen Fire Marshal for exact location of required additional fire hydrant. 20 Planning Commission Meeting — May 2, 2006 11. Accessibility will have to be provided to all portions of the development and a percentage of the units may also be required to be accessible or adaptable in accordance with Minnesota State Building Code Chapter 1341. Further information is needed to determine these requirements. 12. The buildings are required to be protected with an automatic sprinkler system if they are over 8,500 sq. ft. in floor area. For the purposes of this requirement property lines do not constitute separate buildings and the area of basements and garages is included in the floor area threshold. 13. The buildings will be required to be designed by an architect and engineer as determined by the Building Official. 14. A final grading plan and soils report must be to the Inspections Division before building permits can be issued. 15. Walls and projections within 3 feet of property lines are required to be of one-hour fire -resistive construction. 16. Each lot must be provided with separate sewer and water services. 17. The developer and or their agent shall meet with the Inspections Division as early as possible to discuss plan review and permit procedures. 18. A wetland buffer 16.5 to 20 feet in width (with a minimum average of 16.5 feet) shall be maintained around Wetland 3. Wetland buffer areas shall be preserved, surveyed and staked in accordance with the City's wetland ordinance. The applicant shall install wetland buffer edge signs, under the direction of City staff, before construction begins and shall pay the City $20 per sign. All structures shall maintain a setback of at least 40 feet from the wetland buffer edge. 19. The grading plan shall be revised to eliminate grading within the first 20 feet of the setback from the primary corridor. All structures shall maintain a minimum 40 -foot setback from the primary corridor. The plans shall be revised to show that the structure on Lot 12, Block 1 meets the required 40 -foot primary corridor setback. 20. Outlot A shall be protected in perpetuity through the dedication of the outlot to the City of Chanhassen or by the recording of a conservation easement, to be approved by the City, over the entire Outlot A. 21. All perimeter controls and inlet protections shall remain in place until 70% of the area is permanently protected by vegetative cover. 22. All area disturbed within 200 feet of Bluff Creek shall be stabilized within 3 days. 23. The plans shall be revised to show all areas with 3:1 slopes or steeper that will be blanketed. 21 Planning Commission Meeting — May 2, 2006 24. A stable emergency overflow (EOF) for the ponds shall be provided. The EOF could consist of riprap and geotextile fabric or a turf re -enforcement mat (a permanent erosion control blanket). A typical detail shall be included in the plan. 25. Energy dissipation shall be provided for all inlets and outlets within 24 hours of installation 26. Wimco-type or other comparable inlet controls shall be used and installed within 24 hours of installation of the inlets. 27. Typical building lot controls shall be shown on the plan in a typical detail. These controls should include perimeter controls (silt fence), rock driveways, street sweeping, inlet control and temporary mulch after final grade and prior to issuing the Certificate of Occupancy (CO). 28. The proposed storm water ponds shall be used as a temporary sediment basin during mass grading. The pond shall be excavated prior to disturbing up -gradient areas. Plans shall show how the water will be diverted to the temporary basin. Berms and/or ditches may be needed to divert water to the pond, and temporary pond outlets are needed. The outlet could be a temporary perforated standpipe and rock cone. The plans shall be revised to include a detail for the temporary pond outlet. 29. An adequate easement for pond access for maintenance purposes is needed and shall be shown on the plan. 30. The proposed silt fence along Wetland 3 shall be Type 2 silt fence, as specified in Chanhassen Standard Detail Plate 5300. Type 1 silt fence may be used for the remainder of the site. The grading plan shall be revised to show the proposed silt fence following the grading limits for the site, including the 20 -foot grading setback from the primary corridor. The perimeter controls shall be inspected by the city and the SWCD prior to grading. 31. The grading plan shall be revised to show the location of the proposed rock construction entrance. 32. Street cleaning of soil tracked onto public streets shall include daily street scraping and street sweeping as -needed. 33. The estimated total SWMP fee based on 2006 fees, due payable to the City at the time of final plat recording, is $28,670. 34. The owner/operator of the proposed development shall apply for and obtain permits from the appropriate regulatory agencies (e.g., Riley -Purgatory -Bluff Creek Watershed District, Minnesota Pollution Control Agency (NPDES Phase II Construction Site Permit), Minnesota Department of Natural Resources (for dewatering), Minnesota Department of Transportation, Minnesota Department of Health) and comply with their conditions of approval. 35. At least one tree is required in each front yard. 22 Planning Commission Meeting — May 2, 2006 36. A landscape plan denoting areas of sod shall be submitted to the city. Common areas must be sodded and provided with irrigation. 37. Native plantings will be required along the northern edge of the development parallel to the wetland and Bluff Creek. These plantings shall be species selected from the Bluff Creek Management Plan planting list. A revised landscape plan shall be submitted prior to final plat approval to the city for approval. 38. Applicant shall increase understory plantings with the bufferyard areas to meet the minimum number of plantings required." 39. The developer must obtain permission from MNDOT before performing any work within the MNDOT easement. 40. The developer must obtain permission from Metropolitan Council to perform the proposed grading within the sanitary sewer interceptor easement. 41. Prior to final plat consideration, the developer must show the overhead utility easement on the plans. 42. The building footprint must not lie within the overhead utility easement. 43. The developer must comply with any setback requirements the overhead utility company imposes. 44. The lowest floor elevations for Lots 1 through 4 must be raised to a minimum elevation of 963.1'. This condition may require a different housing type (SE, LO, R). 45. The lowest floor elevations for Lots 5 through 12 must be raised to a minimum elevation of 958.5'. Developer must modify 100 -year elevation for Bluff Creek. 46. The final grading plan must identify an emergency overflow location and elevation for the proposed pond. 47. The grading plan must be adjusted so that soil grades are minimum 2%. 48. The proposed grading north and west of Lot 12 must be adjusted so that the drainage Swale will not direct runoff toward the backs of Lots 11 and 12. 49. The six foot high berm on the east side of the private drive must be shifted to the east to provide minimum five feet of boulevard space. 50. The developer must ensure that the final grading plan does not include driveways sloping towards the homes on Lots 11 and 12. 23 Planning Commission Meeting — May 2, 2006 51. Driveway grades must be between 1.5% and 10% at any point within the driveway. 52. The developer must submit existing and proposed drainage maps. 53. Hydraulic calculations must be submitted with the final plat submittals and must include storm sewer inlet capacity analysis to verify that 100% of the runoff from a 10 -year event can be captured. 54. Prior to utility installation the developer must obtain a permit from Metropolitan Council to connect to the interceptor sewer. 55. The storm sewer installed with this project shall be privately owned and maintained since it does not serve public property. 56. Advanced warning and traffic control measures required during the watermain connection must comply with the latest addition of the Minnesota Manual on Uniform Traffic Control Devices. 57. The developer must submit a financial security with the final plat to ensure the restoration of West 78s' Street and the bituminous trail. 58. Each new lot is subject to the sanitary sewer and water hookup charges. These fees are collected with the building permit and are based on the rates in effect at the time of building permit application. The party applying for the building permit is responsible for payment of these fees. 59. The lowest floor elevation of each unit must be shown on the utility plan. 60. Snow removal from the private drive must not encroach into the public right of way. 61. Storm sewer manhole at west driveway entrance should include a 3' sump. 62. The developer shall pay full park fees in effect at the time of final plat recording." Dillon voted in favor, the rest voted in opposition. The motion failed with a vote of 1 to 5. McDonald: Okay, recommendation B fails 5 to 1. Next. Keefe: For item C, the Planning Commission recommends approval of the Conditional Use Permit to permit development within the Bluff Creek Overlay District subject to conditions 1 and 2. McDonald: Okay, do I have a second? Larson: Second. 771 Planning Commission Meeting — May 2, 2006 Keefe moved, Larson seconded that the Planning Commission recommends approval of Conditional Use Permit to permit development within the Bluff Creek Overlay District, subject to the following conditions: 1. The grading plan shall be revised to eliminate grading within the fust 20 feet of the setback from the primary corridor. All structures shall maintain a minimum 40 -foot setback from the primary corridor. The plans shall be revised to show that the structure on Lot 12, Block 1 meets the required 40 -foot primary corridor setback. 2. Outlot A shall be protected in perpetuity through the dedication of the outlot to the City of Chanhassen or by the recording of a conservation easement, to be approved by the City, over the entire Outlot A." Dillon voted in favor, the rest voted in opposition. The motion failed with a vote of 1 to 5. McDonald: Now, we've been here before and I want to ask before I move on, what do we do next? Do we need to make counter proposals to this or does it go back as far as we look at things, or it goes to City Council? Generous:... do you have a recommendation on how they should go forward? McDonald: Well I thought A failed. We were in favor of the Planned Unit Development, or it was a tie so you're right. 3-3 so it in effect fails. Well the options are we can propose something that we would like to see, and that can go forward along with our recommendations here to the City Council. Or we can send strictly our recommendations forward at this point that we turned this proposal down. I would look at from the commissioners, do we have any counter proposals that we would like to put on the table? So we would substitute on A, instead of PUD, vote for an R-4 is our recommendation for going forward. Okay. Does one wish to make a proposal? Or do we wish to have discussion on this? Keefe: Well I don't think we necessarily have to propose anything. I think we can summarize... so that they can go back and re-create ... or they can take it to the City Council and over turn. McDonald: I would ask you, because of what happened before, what we, we tried to send what was a message in our proposals going forward. If we go with, we rejected this, as I see the options, our options are to go to the City Council and do a review there. The City Council can vote on it as a final say. Or we can propose what we would think would be a better use for this, and then you and the developer, or the developer can then make up their mind which way they want to go. Keefe: It's in their court. McDonald: It's in their court at that point. Keefe: Yeah, we can just guide in terns of what we think and it's in their court to re -propose. We aren't necessarily proposing... 25 Planning Commission Meeting — May 2, 2006 Undestad: I think the PUD is still a good issue. I think it's ... as an issue of the... Papke: R-4 or ... more or less dense. Undestad: But they still do a PUD and come back with a less dense development. PUD can control the design standards. Larson: In the PUD. Generous: Other zoning R-4 would control lot area only. So yes, they meet the 10,000 square foot per unit, and it's possible they could come in with and show 12 units if they do that. I don't know, it'd be up to them. It gives them an idea how the Planning Commission feels. Also the commission... McDonald: I think the direction that we're going ahead is lower density. Papke: Less than 10. Larson: But I like the PUD idea if we can have a little control as to what they put in it. How it looks... McDonald: I'm not sure that we can do that. That's where I'm having trouble. Yeah, you can control design, which is where we're at now but we can't control density, which is where we are with the other, and then you lose the designs so. Papke: What are you really getting, and that was my very first question. What were we getting for the PUD? We're getting a couple windows on the garages. Larson: Okay. Papke: I'm not dancing in the streets over that one. Keefe: I think our issues are, is the density is an issue. We want to see fewer units on the site. We'd like to see some consideration for the willow trees on the west end of the site. What were some of the other items. The private street is a concern. Rear yard, well I don't know... McDonald: On this particular lot, that's the only way that's going to work. Unless you're going to create a real traffic problem with West 78`s. I guess the only thing we would do, is we need to look at giving guidance so that we would prefer lower density and then allow the developer to come back at that point and show us a design based upon that. So I think what I'm hearing is, we would need to go with an R-4 is our recommendation for this lot. And I think we would need a motion for that. Keefe: You could do PUD if they came in with fewer houses on it. 26 Planning Commission Meeting – May 2, 2006 Undestad: Aren't we just providing guidance with what we want to see? McDonald: Strictly as a guidance. Do we want to give guidance that we want to see lower density? If we do, the only way I think we send a message, R-4. If you're saying that okay, we want to see lower density and we trust you. At this point, it doesn't look as though we have a good feeling with this developer because of what happened before. We're shown 10 and we get 12. Keefe: What if he came back with PUD and 8? With 8. With townhomes on it. McDonald: Yeah, I mean it's just something with lower density on this with the constraints you've got would probably be more preferable than what's there now. Larson: Okay, can I make a comment? McDonald: Yes. Larson: As opposed to that. Bob had made the comment in his opening statement about it, there is a bit of a transition going from Vasserman to this unit to Galpin. And getting closer to a busier intersection, if you will, and I don't see a problem with this being a little tighter as you get closer to a major, an arterial road. And so I don't know if that's as big of an issue as if it were further in where it's not as close to things and so maybe I don't have so much of a problem with the density. I do somewhat because it looks like they're touching each other but you know, I don't know if they really are. But I don't know if that's something to stop it from moving forward. Papke: But the closest one ... have you seen the one up on ... and 41. We approved a year ago? That's no where near this kind of density... It's right on 78`s. Right at the intersection. Larson: Except that this is two major streets versus one. Papke: It's right on 41 and 78`b. McDonald: I guess the thing is. Larson: Oh, oh. I think, yeah. McDonald: I guess the thing is—sufficient for the record that we have stated what our feelings are. That the issue is density. How it is solved, it is at this point it's up to the developer. He's got a choice to make as to which way he wants to go with this. Either go back, work with staff. Address the issue of density and then resubmit something or he has the option of going forward with the City Council as an appeal process for our decision at this point. So I guess with that, I would close this case as far as the Planning Commission is concerned and it is now up to the applicant to make a decision as to which way he wants to go. Our concerns are in the record. The City Council will have those. They can make the decision at that point, or the developer can make the decision to redo this. At that point we've met our requirements I believe. Okay. 27 Affidavit of Publication Southwest Suburban Publishing %CHANHASSEN State of Minnesota) IF PUBLIC HEARING S NG CASE NO. 06-13 )SS. IS HEREBY GIVEN that County of Carver ) -hambers in Chanhassen City Hall, 1700 Market Blvd. The purpose of this Laurie A. Hartmann, being duly sworn, on oath says that she is the publisher or the authorized hearing is to consider a request for agent of the publisher of the newspapers known as the Chaska Herald and the Chanhassen Vil- Rezoning from Agricultural Estate lager and has full knowledge of the facts herein stated as follows: District, A2, to Planned Unit Development - Residential, PUD -R; (A) These newspapers have complied with the requirements constituting qualification as a legal Prerminary plat approval creating 13 newspaper, as provided by Minnesota Statute 331A.02, 331A.07, and other applicable laws, as lots andone outlotwrth aVariance for amended. a private street and more than four homes accessing a private street, and a Conditional Use Permit for (B) The printed public notice that is attached to this Affidavit and identified as No. �� development within the BluffCreeokd was published on the date or dates and in the newspaper stated in the attached Notice and said overlay District on property Notice is hereby incorporated as part of this Affidavit. Said notice was cut from the columns of north of West 76"' Street and west of the newspaper specified. Printed below is a copy of the lower case alphabet from A to Z, both Galpin Boulevard - GALPIN inclusive, and is hereby acknowledged as being the kind and size of type used in the composition CROSS,A`JGTWINHOMES. Applicant and publication of the Notice: Epic opihkGt'%Vf, LTU" A plan showing the location of the abcdefghuklmnopgrstuvwxyz proposal is availableforpublicreview on the City's web site at //� h h it LS/ ni Vt - q�l�p(tul orat Chry Halldunng regugrogular &'At� business hours. All interested ! Laurie A. Hartmann persons are invited to attend thio public hearing and express their opinions with respect to this proposal. Robert Subscribed and sworn before me on Generous. Senior Planner Email: li u5 ch h <en ^ 'a �!) Phone. 952 this qday of 2006 227-1131i. GWEN M. RADUENZ (Published in the Chanhassen NOTARY PUBL'C-MINNESOTA Villager on Thursday, P My 0onmwlcn Ezpres Jan. 31.2010 2006; No. 4650) Notary Public RATE INFORMATION Lowest classifredrate paid by commercial users for comparable space.... $40.00 per column inch Maximum rate allowed by law for the above matter ............................... $40.00 per column inch Rate actually charged for the above matter ............................................... $11.51 per column inch SCANNED 0 0 CITY OF CHANHASSEN CARVER & HENNEPIN COUNTIES NOTICE OF PUBLIC HEARING PLANNING CASE NO. 06-13 NOTICE IS HEREBY GIVEN that the Chanhassen Planning Commission will hold a public hearing on Tuesday, May 2, 2006, at 7:00 p.m. in the Council Chambers in Chanhassen City Hall, 7700 Market Blvd. The purpose of this hearing is to consider a request for Rezoning from Agricultural Estate District, A2, to Planned Unit Development — Residential, PUD -R; Preliminary plat approval creating 13 lots and one Outlot with a Variance for a private street and more than four homes accessing a private street; and a Conditional Use Permit for development within the Bluff Creek Overlay District on property located north of West 78d' Street and west of Galpin Boulevard —GALPIN CROSSING TWINHOMES. Applicant: Epic Development XVI, LLC. A plan showing the location of the proposal is available for public review on the City's web site at www.ci.chanhassen.mn.ugserv/Rlan/06-13.htm1 or at City Hall during regular business hours. All interested persons are invited to attend this public hearing and express their opinions with respect to this proposal. Robert Generous, Senior Planner Email: beenerous@ci.chanhassen.mn.us Phone: 952-227-1131 (Publish in the Chanhassen Villager on April 20, 2006) ac"NED CITY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES, MINNESOTA FINDINGS OF FACT AND RECOMMENDATION 11MM Application of Epic Development XVI, LLC request for rezoning from Agricultural Estate District, A2, to Planned Unit Development — Residential, PUD -R; Preliminary plat approval creating 13 lots and one Outlot with a Variance for a private street and more than four homes accessing a private street; and Conditional Use Permit for development within the Bluff Creek Overlay District. On May 2, 2006, the Chanhassen Planning Commission met at its regularly scheduled meeting to consider the application of Epic Development XVI, LLC for a Planned Unit Development to permit a 12 -unit twin home project. The Planning Commission conducted a public hearing on the proposed Planned Unit Development preceded by published and mailed notice. The Planning Commission heard testimony from all interested persons wishing to speak and now makes the following: FINDINGS OF FACT 1. The property is currently zoned Agricultural Estate District, A2. 2. The property is guided in the Land Use Plan for Residential — Low Density. 3. The legal description of the property is: See Exhibit A. 4. Rezoning a. The proposed action has been considered in relation to the specific policies and provisions of and has been found to be inconsistent with the following City Comprehensive Plan policies: Land Use Policy: "Encourage low density residential development in appropriate areas of the community in a manner that reinforces the character and integrity of existing single-family neighborhoods while promoting the establishment of new neighborhoods of similar quality." The proposed development does not reinforce the character of the adjacent development since it does not maintain the lot sizes, housing orientation, rhythm and spacing of that development. Housing policy: New development shall be discouraged from encroaching on vital natural resources or physical features that perform essential protection functions in their natural state. The proposed development encroaches in to the Bluff Creek corridor. b. The proposed use does not conform with all performance standards contained in the Zoning Ordinance for Planned Unit Developments since it does lead to a significantly higher quality development nor a more sensitive development than would have been the case with the use of other more standard zoning districts. The environmental sensitivity is provided through the enforcement of the Bluff Creek Overlay and Wetland Protection standards. 5. Subdivision. a. The proposed subdivision is not consistent with the zoning ordinance, since it does not comply with the minimum standards of the Agricultural Estate District, A2, standards which the property is zoned; b. The proposed subdivision is not consistent with all applicable city, county and regional plans including but not limited to the city's comprehensive plan as specified in item 4. a. above; c. The proposed subdivision does not make adequate provision for water supply, storm drainage, sewage disposal, streets, erosion control and all other improvements required by the subdivision ordinance since it does not adequately accommodate storm drainage and flood protection measures; 6. Variance (Private Street and more than four units on a private street). a. The requirement for a public street is not a hardship. A reasonable use of the property can be achieved with a public street. Economic consideration alone are driving the request for a private street. The purpose of the private street is to increase the number of lots. A public street could be developed as part of the proposed development. 7. Conditional Use Permit. When approving a conditional use permit, the City must determine the compatibilty of a proposed development with existing and proposed uses. a. The proposed development will be inconsistent with the objectives of the city's comprehensive plan and the zoning ordinance as specified in findings 4 a. and b. above. b. The proposed development is not designed, constructed, operated and maintained so to be compatible in appearance with the existing or intended character of the general vicinity and will not change the essential character of that area since it does not maintain the spacing and rhythm of that development.. c. The proposed development will not be aesthetically compatible with the area since it does not maintain the spacing and rhythm of that development and appears overly dense. d. The proposed development will not meet standards prescribed for Planned Unit Developments as provided in finding 4.b. above. The Planning Commission recommends that the City Council deny the Planned Unit Development for Galpin Crossing Twinhomes. ADOPTED by the Chanhassen Planning Commission this 2°d day of May, 2006. CHANHASSEN M Its 91 PARCEL A: That part of the southwest Quarter of the southwest Quarter of section 10, Township 116, Range 23 and the Northwest Quarter of the Northwest Quarter of scction 15, Township 116, Range 23, Carver County, Minnesota, described as follows: Beginning at the southwest comer of said section 10; thence on as assumed bearing of North 1 degree 56 minutes 40 seconds west along the West line of said Southwest Quarter, a distance of 1026.89 feet; thence south 79 degrees 32 minutes 20 seconds East, a distance of 177.77 feet; thence south 86 degrees 32 minutes 20 seconds East, a distance of 100.40 feet; thence south 78 degrees 32 minutes 20 seconds East, a distance of 194.14 feet; thence south 74 degrees 32 minutes 20 seconds East, a distance of 150.00 feet; thence south 47 degrees 17 minutes 20 seconds East, a distance of 75.43 feet; thence North 82 degrees 42 minutes 40 seconds East, a distance of 74.98 feet; thence south 58 degrees 17 minutes 20 seconds East, a distance of 84.58 feet; thence south 89 degrees 17 minutes 20 seconds East, a distance of 164.63 feet; thence south 18 degrees 17 minutes 40 seconds west, a distance of 824.19 feet to the northerly right of way line of Trunk Highway 5; thence North 85 degrees 54 minutes 50 seconds West along said northerly right of way, a distance of 33.08 feet; thence south 56 degrees 40 minutes 55 seconds West along said northerly right of way, a distance of 158.95 feet; thence North 85 degrees 54 minutes 50 seconds West along said northerly right of way, a distance of 518.22 feet to the west line of the Northwest Quarter of section 15, Township 116, Range 23; thence North 1 degree 37 minutes 50 seconds West along said west line of the Northwest Quarter, a distance of 9.12 feet to the point of beginning. which lies northwesterly of that particular northwesterly right-of-way line of Parcel 216, as shown on MINNESOTA DEPARTMENT OF TRANSPORTATION RIGHT OF WAY PLAT NO. 10-08, recorded as Document No. 265755 and as amended on MINNESOTA DEPARTMENT OF TRANSPORTATION RIGHT OF WAY PLAT NO. 10-14, recorded as Document NO. 279658, described as follows: commencing at the southwest corner of said section 10; thence on an assumed bearing of North 1 degree 56 minutes 40 seconds west, along the west line of the Southwest Quarter of said section 10, a distance of 401.19 feet, to a particular right-of-way line of said parcel 216 and the point of beginning of the line to be described; thence North 47 degrees 18 minutes 16 seconds East a distance of 175.14 feet, to an angle point in said right-of-way line; thence North 47 degrees 18 minutes 19 seconds East a distance of 22.71 feet, to a point of curvature in said right-of-way line; thence easterly a distance of 662.60 feet, along a non-tangential curve concave to the south having a radius of 633.04 feet and a central angle of 59 degrees 58 minutes 14 seconds and having a chord of 632.76 feet which bears North 77 degrees 17 minutes 27 seconds East to an angle point in said right-of-way line; thence North 56 degrees 16 minutes 30 seconds East, not tangent to said curve a distance of 114.28 feet, to an angle point in said right-of-way line; thence North 22 degrees 13 minutes 10 seconds East, along said right-of-way line, a distance of 116.13 feet and said line there terminating. a Page 1 of 1 Generous, Bob From: ralph pamperin [rpamperim@msn.com] Sent: Sunday, April 30, 2006 4:29 PM To: Generous, Bob Cc: kraushausl @msn.com; Igriffkh@sunsme.com; LMMartin@mchsi.com; m.magnuson@mchsi.com; bjelseth@msn.com; mn05gelino@yahoo.com; jimchmura@hotmail.com; tee_hee@msn.com; jerry.wolfe@mchsi.com; mishields2@mchsi.com; TAnder8685@aol.com; rpdebol@mchsi.com; ELANCE389@aol.com Subject: Re: Galpin Crossing Twinhomes I live at 7719 Vasserman Trail and am unable to attend the planning meeting on May 2. 1 would like to express my concerns with the proposed Galpin Crossing Twinhomes development. The concentration of 12 units on such a relatively small amount of buildable land seems to result in an unattractively high density -- particularly with the three western -most structures. I encourage the planning commission to seek a somewhat more attractive addition to our lovely Chanhassen community neighborhood. I ask the planning commission staff to modify its recommendations to include a reduction in the density of the development. Ralph Pamperin 952-934-9727 5/1/2006 Date: April 3, 2006 City of Chanhassen 7700 Market Boulevard P.O. Box 147 Chanhassen, MN 55317 (952) 227-1100 To: Development Plan Referral Agencies From: Planning Department By: Robert Generous, AICP, Senior Planner Subject: GALPIN CROSSING TWINHOMES - Request for rezoning from Agricultural Estate District, A2, to Planned Unit Development — Residential, PUD -R; Preliminary plat approval creating 13 lots and one Outlot with a Variance for a private street and more than four homes accessing a private street; and Conditional Use Permit for development within the Bluff Creek Overlay District on property located north of West 78's Street and west of Galpin Boulevard. Applicant: Epic Development XVI, LLC. Planning Case: 06-13 The above described application for approval of a land development proposal was filed with the Chanhassen Planning Department on March 30, 2006. The 60 -day review period ends May 29, 2006. In order for us to provide a complete analysis of issues for Planning Commission and City Council review, we would appreciate your comments and recommendations concerning the impact of this proposal on traffic circulation, existing and proposed future utility services, storm water drainage, and the need for acquiring public lands or easements for park sites, street extensions or improvements, and utilities. Where specific needs or problems exist, we would like to have a written report to this effect from the agency concerned so that we can make a recommendation to the Planning Commission and City Council. This application is scheduled for consideration by the Chanhassen Planning Commission on May 2, 2006 at 7:00 p.m. in the Council Chambers at Chanhassen City Hall. We would appreciate receiving your comments by no later than April 21, 2006. You may also appear at the Planning Commission meeting if you so desire. Your cooperation and assistance is greatly appreciated. 1. City Departments: a. City Engineer b. City Attorney c. City Park Director d. Fire Marshal e. Building Official L Water Resources Coordinator g. Forester 2. Carver Soil & Water Conservation District 3. MN Dept. of Transportation 4. MN Dept. of Natural Resources 5. U.S. Army Corps of Engineers 6. U.S. Fish & Wildlife 7. Carver County a. Engineer b. Environmental Services 8. Watershed District Engineer a. Riley -Purgatory -Bluff Creek b. Lower Minnesota River c. Minnehaha Creek 9. Telephone Company (Owes t or Sprint/United) 10. Electric Company (Xcel Ener ev or MN Valley) 11. Medincom 12. CenterPoint Energy Minnegasco Location Map Galpin Crossing Twinhomes Planning Case No. 06-13 NW Corner Highway 5 & Galpin Blvd. City of Chanhassen 5 Arboretum Bo toe and n etre SUBJECT PROPERTY /e 3 U ® rn a D w C1 m C �& Q i \ Coulter Boulevard _ , 14 Y OF MEMORANDUM II�III,tIl1tJC'�u� CIHSG11 TO: Robert Generous, Senior Planner 7700 Market Boulevard FROM: AI son Fauske, Assistant Cit Engineer Park & Recreation north. The high point of the property lies in the southeast corner and slopes Chanhassen, MN 55317 towards the wetland and Bluff Creek. The area south of West 78`s Street drains to 1591 Park Road DATE: May 2, 2006 Administration A sanitary sewer easement lies along the north side of the property and ranges Phone: 952.227.1100 from 40 to 60 feet wide. The sewer within this easement is the 42" Metropolitan Fax: 952.227.1110 SUBJECT: Preliminary Plat Review of Galpin Crossing Fax: 952.227.1404 Land Use Review File No. 06-13 Building Inspections Phone: 952.227.1180 Fax 952.227.1190 Upon review of the plans prepared by Ryan Engineering received April 19, 2006, Engineering I have the following comments and recommendations: Phone: 952.227.1160 Fax: 952 227.1170 Finance EASEMENTS AND RIGHT OF WAY PFax:952.227.1110 Fax: 952.227.1710 The site is bound b Galpin Boulevard CR 117) to the east, West 78`s Street to Y P Phone: 952.227.1130 the south, Vasserman Ridge to the west and a wetland and Bluff Creek to the Park & Recreation north. The high point of the property lies in the southeast corner and slopes Phone: 27.1110 Fax: 952.227.1110 towards the wetland and Bluff Creek. The area south of West 78`s Street drains to 1591 Park Road the site via a culvert. Recreation Center A sanitary sewer easement lies along the north side of the property and ranges 2310 Coulter Boulevard from 40 to 60 feet wide. The sewer within this easement is the 42" Metropolitan Phone: 952.227.1400 The overhead power lines on the west property line will remain. Fax: 952.227.1404 Council to perform the proposed grading within this easement. Planning d EASEMENTS AND RIGHT OF WAY Natural Resources Phone: 952.227.1130 The plan identifies a MNDOT drainage easement on the southern property line, Fax 952.221.1110 on the west side of the parcel. The developer must obtain permission from Public works MNDOT before performing any work within this easement. 1591 Park Road P 200 Fax:952-227.1310 A sanitary sewer easement lies along the north side of the property and ranges from 40 to 60 feet wide. The sewer within this easement is the 42" Metropolitan Senior Center Council interceptor. The developer must obtain permission from Metropolitan Phone: 952.227.1125 Fax:952.227.1110 Council to perform the proposed grading within this easement. Web site The plans do not identify an easement for the overhead utility lines on the west www.cl.chanhassen.mn.us side of the project. Prior to final plat consideration, the developer must show the easement on the plans. The building footprint must not lie within this easement. The developer must comply with any setback requirements the utility company imposes. A drainage and utility easement will be platted over all of Lot 13, Block 1, which is the common lot within the proposed development. The City of Chanhassen • A growing community with clean lakes, quality schools, a chaffing downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play. Galpin Crossing Preliminary Plat Page 2 of 5 Right of way for West 78th Street adjacent to this property ranges between 115 to 120 feet wide. Additional right of way is not required. GRADING AND DRAINAGE The developer has submitted a soil boring report indicating that approximately two feet of peat material exists south of the wetland. This material will be excavated and fill will be imported to grade the site. The lowest floor elevations for Lots 1 through 4 must be raised to a minimum elevation of 963.1', which is three feet above the high water level of the existing pond to the west within the Vasserman Ridge development. The lowest floor elevations for Lots 5 through 12 must be raised to a minimum elevation of 958.5', which is three feet above the high water level of the wetland, as indicated in the City of Chanhassen's 1994 Surface Water Management Plan. The final grading plan must identify an emergency overflow location and elevation for the proposed pond. The grading plan must be adjusted so that soil grades are minimum 2%. The proposed grading north and west of Lot 12 must be adjusted so that the drainage swale will not direct runoff toward the backs of Lots 11 and 12. The six foot high berm on the east side of the private drive must be shifted to the east to provide minimum five feet of boulevard space. The developer must ensure that the final grading plan does not include driveways sloping towards the homes on Lots 11 and 12. Driveway grades must be between 1.5% and 10% at any point within the driveway. The developer has submitted hydrology calculations for the proposed development for the proposed site for staff review. The developer must submit existing and proposed drainage maps. Staff will forward comments to the developer prior to final plat consideration. The developer has sized the pond to accommodate the existing runoff from the property south of West 78th Street. Storm water ponding must be constructed for the additional post -development runoff when the property south of West 78th Street is developed. Galpin Crossing Preliminary Plat Page 3 of 5 Hydraulic calculations must be submitted with the final plat submittals and must include storm sewer inlet capacity analysis to verify that 100% of the runoff from a 10 -year event can be captured. RETAINING WALLS The developer does not propose to construct any retaining walls on the site. UTILITIES The developer proposes to extend lateral sanitary sewer from the existing Metropolitan Council interceptor line. The developer must obtain a permit from Metropolitan Council prior to utility installation. Lateral watermain will extend from the existing 18" trunk within West 78th Street. This connection will require cutting into West 78th Street approximately eight feet from the curb. West 78 Street must remain open during this utility connection. Advanced warning and traffic control measures required during this utility connection must comply with the latest addition of the Minnesota Manual on Uniform Traffic Control Devices. The developer must submit a financial security with the final plat to ensure the restoration of West 78th Street and the bituminous trail. The lateral sanitary sewer and watermain shall be publicly owned and maintained. The developer will be responsible for extending lateral sewer and water service to the lots, therefore the sanitary sewer and water connection charges will be waived. Each new lot is subject to the sanitary sewer and water hookup charges. These fees are collected with the building permit and are based on the rates in effect at the time of building permit application. The party applying for the building permit is responsible for payment of these fees. The lowest floor elevation of each unit must be shown on the utility plan. The developer proposes to install lateral storm sewer to capture runoff from the private drive and the existing culvert under West 78th Street and convey the runoff to the proposed storm water basin. This storm sewer shall be privately owned and maintained since it does not serve public property. STREETS The proposed access to this development lies approximately 660' west of Galpin Boulevard and 420' east of Vasserman Trail. Access to the units will be from a privately owned and maintained drive, which will be 90' in diameter at the Galpin Crossing Preliminary Plat Page 4 of 5 entrance, and 20' wide through the remainder of the site. A hammerhead turnaround will be installed at the eastern terminus of the drive. The plans show that the private drive will be installed five feet from the right of way line. Snow removal from the private drive must not encroach into the public right of way. RECOMMENDED CONDITIONS OF APPROVAL Staff recommends approval of the preliminary plat for Galpin Crossing subject to the following conditions: 1. The developer must obtain permission from MNDOT before performing any work within the MNDOT easement. 2. The developer must obtain permission from Metropolitan Council to perform the proposed grading within the sanitary sewer interceptor easement. 3. Prior to final plat consideration, the developer must show the overhead utility easement on the plans. 4. The building footprint must not lie within the overhead utility easement. 5. The developer must comply with any setback requirements the overhead utility company imposes. 6. The lowest floor elevations for Lots 1 through 4 must be raised to a minimum elevation of 963.1'. This condition may require a different housing type. 7. The lowest floor elevations for Lots 5 through 12 must be raised to a minimum elevation of 958.5'. Developer must verify 100 -year elevation for Bluff Creek. 8. The final grading plan must identify an emergency overflow location and elevation for the proposed pond. 9. The grading plan must be adjusted so that soil grades are minimum 2%. 10. The proposed grading north and west of Lot 12 must be adjusted so that the drainage swale will not direct runoff toward the backs of Lots 11 and 12. 11. The six foot high berm on the east side of the private drive must be shifted to the east to provide minimum five feet of boulevard space. 12. The developer must ensure that the final grading plan does not include driveways sloping towards the homes on Lots 11 and 12. 13. Driveway grades must be between 1.5% and 10% at any point within the driveway. 14. The developer must submit existing and proposed drainage maps. Galpin Crossing Preliminary Plat Page 5 of 5 15. Hydraulic calculations must be submitted with the final plat submittals and must include storm sewer inlet capacity analysis to verify that 100% of the runoff from a 10 -year event can be captured. 16. Prior to utility installation the developer must obtain a permit from Metropolitan Council to connect to the interceptor sewer. 17. The storm sewer installed with this project shall be privately owned and maintained since it does not serve public property 18. Advanced warning and traffic control measures required during the watermain connection must comply with the latest addition of the Minnesota Manual on Uniform Traffic Control Devices. 19. The developer must submit a financial security with the final plat to ensure the restoration of West 78's Street and the bituminous trail. 20. Each new lot is subject to the sanitary sewer and water hookup charges. These fees are collected with the building permit and are based on the rates in effect at the time of building permit application. The party applying for the building permit is responsible for payment of these fees. 21. The lowest floor elevation of each unit must be shown on the utility plan. 22. Snow removal from the private drive must not encroach into the public right of way. 23. Storm sewer manhole at west driveway entrance should include a 3' sump. c: Paul Oehme, Director of Public Works/City Engineer gAeng\projmts\galpin c sing\05-02-06 ppr.dm CARVER ?k'+%0 9 co,.` 219 East Frontage Road y 1946 10 Waconia, NW 55387 & Wi4+TER 0 Phone: 952-442-5101 vnty S`° Fax: 952-442-5497 NSERVATION DISTRICT htto://www.mnrver.ma.us/SWCD/SWCD main.html Mission Statement. To provide leadership in conservation and teach stewardship of the soil, water, and related resources through a balanced, cooperative program that protects, restores, and improves those resources. April 21, 2006 Robert Generous City of Chanhassen 7700 Market Boulevard Chanhassen, MN 55317 Re: Galpin Crossing Twin homes Mr. Generous: The SWCD has taken the opportunity to review the The Galpin Crossing Twin homes. The plan reviewed is dated March 30, 2006. Please review and consider the following comments and suggestions regarding the SWPPP and erosion control and sediment controls. SWPPP I - It should be noted in the SWPPP that all perimeter controls and inlet protections need to stay in place until 70% of the area is permanently protected by vegetative cover. 2 — It should be changed on the notes that all area disturbed within 200 feet of Bluff Creek need to be stabilized within 3 days. 3 — The SWPPP noted that all areas shown on the plan that were hatched indicate 3:1 slopes and would need to be blanketed. Reviewing the plans, those areas were not marked. Erosion Control 1. A stable EOF for the ponds is needed. The EOF could consist of riprap and geotextile fabric or a turf re -enforcement mat (a permanent erosion control blanket). A typical detail is needed on the plan. 2. Energy dissipation is needed on all inlets and outlets within 24 hours of installation Sediment Control 1. Curbside inlet control were identified on the plan, but it should be noted that other proven methods are out there that work better. Wimco-type, or other comparable inlet controls should be used and installed within 24 hours of installation of the inlets. 2. Do not use straw bales for inlet controls — other controls are proven and cost effective. Contact the City for guidance. 3. Typical building lot controls should be shown on the plan in a typical detail. These controls should include perimeter controls (silt fence), rock driveways, street sweeping, inlet control and temporary mulch after final grade and prior to issuing the CO. AN EQUAL OPPORTUNITY EMPLOYER 4. The proposed storm water ponds should be used as temporary sediment basins during mass grading. The pond should be excavated prior to disturbing up gradient areas. Plans should show how you're going to get the water to the temporary basin, berms / ditches may be needed to divert water to the pond, and temporary pond outlets are needed. The outlet could be a temporary perforated standpipe and rock cone. A detail is needed. 5. Perimeter controls will need to be identified on the plan, and should be noted that along the creek that heavy duty silt fence with requirements from the City of Chanhassen will need to be installed. The perimeter controls should be inspected by the city and the SWCD prior to grading. Storm water Manacement 1. An adequate easement for pond access for maintenance purposes is needed and should be shown on the plan. If there are any questions or if I can be of further assistance please contact the SWCD office. Sincerely, Chip Hentges Conservation Technician c. Lori Haak, City of Chanhassen (email) Recreation Center 2310 Coulter Boulevard I have reviewed the plans for the above project. In order to comply with the Phone: 952.227.1400 CITY OF Fax: 952.227.1404 city ordinance/policy requirements. The plan review is based on the available CI1H1I1111JSGN information submitted at this time. If addition al plans or changes are submitted, the Natural Resources appropriate code or policy items will be addressed. MEMORANDUM 7700 Market Boulevard Fax: 952.2271110 1. A 10 -foot clear space must be maintained around fire hydrants, i.e., street lamps, PO Box 147 trees, shmbs, bushes, Xcel Energy, Qwest, cable TV and transformer boxes. 1591 Park Road Chanhassen, MN 55317 TO: Robert Generous AICP, Senior Planner Administration Phone: 952.227.1100 FROM: Mark Littfin, Fire Marshal Fax: 952.227.1110 DATE: April 7, 2006 Building Inspections Phone. 952.227.1180 Fax: 952.227.1190 SUBJ: Galpin Crossing Twinhomes. Request for rezoning from Agricultural Estate District, A2, to Planned Unit Development Engineering Phone: 952.221.1160 Residential, PUD -R, preliminary plat approval creating 13 lots Fax: 952227.1170 and one outlot with a variance for a private street and more than four homes accessing a private street, and conditional use permit Finance for development within the Bluff Creek Overly District on property Phone: 952.227.1140 Fax: 952.227.1110 located north of W 78uh Street and west of Galpin Boulevard. Applicant is Epic Development XVI, LLC. Park & Recreation P2.211 Fax:952.227.1110 Planning Case: 06-13 Recreation Center 2310 Coulter Boulevard I have reviewed the plans for the above project. In order to comply with the Phone: 952.227.1400 Chanhassen Fire Department/Fire Prevention Division, I have the following fire code or Fax: 952.227.1404 city ordinance/policy requirements. The plan review is based on the available Planning a information submitted at this time. If addition al plans or changes are submitted, the Natural Resources appropriate code or policy items will be addressed. Phone: 952.227.1130 Fax: 952.2271110 1. A 10 -foot clear space must be maintained around fire hydrants, i.e., street lamps, Public works trees, shmbs, bushes, Xcel Energy, Qwest, cable TV and transformer boxes. 1591 Park Road This is to ensure that fire hydrants can be quickly located and safely operated by PFax:952.227.13100 Fax: 952.227.1310 firefighters. Pursuant to Chanhassen Ci Ordinance #9-1. � �' Senior center 2. No burning permits shall be issued for trees to be removed. Trees and shrubs Pax 952.221.1 :95227.1110 110 pp Fax must either be removed from site or chipped. Web site 3. Yellow curbing and "No Parking Fire Lane" signs will be required. Contact wwwci.chanhassen.mn.us Chanhassen Fire Marshal for exact location of yellow curbing and locations of signs to be installed. Pursuant to Minnesota State Fire Code Section 503.3 and 503.4. 4. Dead end fire apparatus access roads in excess of 150 feet in length shall be provided with an approved area for turning around fire apparatus. Submit tum around designs to City Engineer and Chanhassen Fire Marshal for approval. The City of Chanhassen • A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play. Mr. Robert Generous AICP, Senior Planner April 7, 2006 Page 2 Pursuant to Minnesota State Fire Code Section 503.2.5. (Exception: the code official is authorized to increase the dimension of 150 feet where the building is equipped throughout with an approved automatic fire sprinkler system installed in accordance with Minnesota State Fire Code Section 903.3.1.1, 903.3.1.2 or 903.3.1.3). 5. Fire apparatus access roads and water supply for fire protection is required to be installed. Such protections shall be installed and made serviceable prior to and during the time of construction except when approved alternate methods of protection are provided. Pursuant to Minnesota State Fire Code Section 501.4. 6. Fire apparatus access roads shall be designed and maintained to support the imposed load of fire apparatus and shall be serviced so as to provide all-weather driving capabilities. Pursuant to Minnesota State Fire Code Section 503.2.3. The new proposed street will be required to have a street name. Submit proposed to street name to Chanhassen Building Official and Chanhassen Fire Marshal for review and approval. Pursuant to Minnesota State Fire Code Section 503.3. 8. An additional fire hydrant will be required. Maximum spacing is 300 feet. Contact Chanhassen Fire Marshal for exact location of required additional fire hydrant. g:nfety/mVpIm06-13 0 MEMORANDUM CITYOF TO: Robert Generous, Senior Planner CHANNSEN 7700 Market Boulevard FROM: Todd Hoffman, Park and Recreation Director PO Boz 147 Chanhassen, MN 55317 DATE: February 28, 2005 Administration COMPREHENSIVE PARK PLAN Phone: 952.227.1100 SUBJ: Request for Rezoning and Preliminary Plat with Variances to Fax:952.227.1110 Create 13 Lots and One Outlot; Epic Development XVI, LLC Building Inspections This site is wholly within the neighborhood park service area of Sugarbush Park. Phone: 952.227.1100 This park contains a children's playground, open space and a walking trail. Fax: 952.227.1190 I have reviewed the application from Epic Development, a proposed subdivision Fax:952.227.1110 With variances located north of West 78th Street and west of Galpin Boulevard. Engineering dollars will be required in lieu of land dedication (12 lots x $5,000 per lot = Phone: 952.227.1160 The following conditions regarding parks and trails apply to the application: Fax: 952.227.1170 c: Park and Recreation Commission G:xpark\TH\Epic Subdivision The City of Chanhassen • A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play. COMPREHENSIVE PARK PLAN Finance Phone: 952.227.1140 Fax: 952 227.1110 This site is wholly within the neighborhood park service area of Sugarbush Park. This park contains a children's playground, open space and a walking trail. Park A Recreation Phone: 952 227.1120 Future homeowners would access the park via Galpin Boulevard. No additional Fax:952.227.1110 parkland dedication is required in this area of the City; therefore, park dedication Recreation Center dollars will be required in lieu of land dedication (12 lots x $5,000 per lot = 2310 Coulter Boulevard $60,000). Phone: 952.227.1400 Fax: 952.227.1404 COMPREHENSIVE TRAIL PLAN Planning At Natural Resonances All twelve lots will have convenient access to a section of the city's Phone: 952.227.11130130 Fax:952.227.1110 comprehensive trail plan. This ten -foot wide city trail is located parallel to West 78th Street on the southern edge of the subject property. The trail should be Public Works protected and kept open and accessible to the public throughout the project. No 1591 Park Road Phone: 952.227.1300 additional trail construction is being recommended as a condition of this Fax: 952.227.1310 development. Senior Center Phone: 952.227.1125 ATTACHMENTS Fax: 952 227.1110 1. Sugarbush Park Map Web site 2. Park Service Area Map p c: Park and Recreation Commission G:xpark\TH\Epic Subdivision The City of Chanhassen • A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play. Sugarbush Park City of Chanhassen, Minnesota MO ®8 xotm etoo aeeele. Groep Inc. zr..... ,o Hwy 5 Arboretum Bouleva dBTH N W+E S April 4, 2006 -- w �a F w7sr ret um Boulevard je yy�rr T� --- �J�i Wil P i 3 a<a cOOpe�6o P Park � 3„ Park Service Area Sugar Bush Park 6:/ElV6/Jo%en/Parks/Suwr,9ush 0 1006 NYAN Ei1Qlq NC. ) I' OUTLOT FII I ��`i—�oR � t /��( I //�\-s6969 e>ti_ -\ �/ WL X53 _� _C � -'•upy'E ff�_�Q �< "q- 0TU L O WETLAND BASIN NO. 3 A - \ —i�aac� \�U� X54 \ 'NL°°u �.'I / "• /`�./ s 5 9� 956 9 9 7 5T9 10 ) ) � 67 / 8� �o\\ \m Grp\\ a04 �°hi��� e/ s•' .P \ �d r 958 0 1K 7 \)\� \� \\\ II t I°0 5 3 6 --96im \ 1 I! _ —964- — 11 / f i 6 55 /l 5\II t -I RIM=962.20 �7�RC _ 1 III III• f 1! ! 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GALPIN CROSSING TWINHOMES ChanhasseR MN for U EPIC H ,CCr N. ovia mow.,, A• Pc.e By OLD ChxWee Py PW Pore YDAl6 PW 4Y an19W OaelNi M*MkCgM1 CaWWW. Issued For Data ScMKTW DeeW efrmmy Be ie - FnW Ne kW Preliminary Grading and SWPP Plan P" P-3 SCANNED Z zoos RYAN ENGINEERNIX INC. S80'p •¢J. OUTLOT F SANTARY SEWER —�— OMKR:� RALPN PAMPERW t BARBARA ELY —1- - 7719 VASSE'RNAN MAR. YID. W/VALVE MEODOW t YARIENE f NTZ 7300 GALPW MW OIANNASYN, LLE' 115I7 —00.40• 1 - S79}747 EXE 90R.. NN SSJ31 wkMO —WL- 9 01-: �u rASL� `� 150 47"E w6TtEN DESLRw TO BE 51Le nED. 3 s1 uRRENCE t NdMEIE YAR O 4 7775 VASSERMAN MAR. b A CNANHASYN UN SSJ)) � 8 61)J53 ) A 7J51 CK4RR: t GAR CJRX fXIELOPER 77" VS 7729 vASS MAx 2006 , New CHAMrA55EN, IWI 55.) 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W/MSE IKWhA SEWER —lq— STOFN SEVER wkMO —WL- 1AUTT atFEK---BCPC--- NBMARY CORRaq BOUNDARY 11412� \ \ Qp � \ EASEMENT (ENIW°E LOT 1JJ WEST 78 grFeZ�r / / / ENC LLm ENI XY, LLC WY / LAK EVEN SKY EDEN PRAWE, NN MSJII \ Ile / / / t / / / DEVELOPMENT DATA LOT AREA DATA / / zoNNc / EX15RMG ZOMNC: Agri terse SwQE FALL OEWLOPYENF AKA ILUM 3/- AC / PR O ZOVWO: PMeeeR LAR DeIo .t FA \ 1 I I' ORtfER:WKEL KLMIT2 DEVELOPLIENT 350 NWT 212 E, PO BOX 89 / LNASKA, UN 5"18R: OWE \ \ dIr OF dUNNAS'YN \ 04 BOX \ ` WANNASYSV N, W5"17 O / 2 / / LOT 1 dTr LAND UY PLAN: ReeM W (1.2-4 WISIAc ) PROPOYO LAMO UV.- 2.0 LNils/A>e LOT NULLBER AREA IF. LEGAL DESCRIPTION a oa r I 17353 2 47 9 CITY OF CHANHASSEN w6TtEN DESLRw TO BE 51Le nED. 3 1JJo3 RECEIVED X 4 13303 5 1)353 61)J53 ) A 7J51 APR 1 9 fXIELOPER 2006 EFW OEIELO°YENi ". LLC B A7M DXN M" 9 10 ; )J5t 3,7Mt t R YM ' 7 II J 7553 A73M3 r ' }: CHANHASSEN 0 - PLANNING IV �t%R DEPT 12 1)353 O WaDTA 120.7783 IOO,B0l3 ZJeO C(. Tefd 9.OIX I 265.3953 Ay Let A 16663 Too Not Arse 265,5953 0 50' 1w* 150' Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MJ 55331 (952) 380-5000 .nNerys wp eerhn% om s�e�.WWr Eel htR0- WRus1Mw me++wo..r ....,e. y ia1 +paw M IM I a � UT Rejrbelp, Np pole GALPIN CROSSING TWINHOMES Chanhassen, MN for U EPIC Prv�ec! No- D,ld Pro.sq Nana Nem B Q9 ae�E4e By Defe "/DO ae.ivos ALWA19 M1 ay IIRrIRW OWWIwb Woued For. Date: Sd wnabc Design Cknswy Review RUI P.A. Preliminary Plat P-2 SCANNED 007 Ryngianeerina LAND DEVELOPMENT SERVICES April 19, 2006 Mr. Bob Generous Planning Department City of Chanhassen 7700 Market Blvd., Box 147 Chanhassen, MN 55317 Re: Galpin Crossing Twinhomes VIA MESSENGER Excelsior, MN 55331 Tel 952-380-5000 Fax 952-380-5010 w .ryanengmeenngwm Enclosed, please find 10 full-size and 1 half-size copy of the revised Preliminary Plans for the above referenced project. We have incorporated the changes discussed with you yesterday. If you have any further questions or comments, please contact our office. Sincerely, RYAN EN EERING, Perry M. Ry President Enclosures Cc: Mr. Rich Ragatz — Epic Development, LLC CITY OF CHANHASSEN RECEIVED APR 1 9 2006 CHANHASSEN PLANNING DEPT SCANS ED CITY OF CHANHASSEN 7700 Market Boulevard - P.O. Box 147 Chanhassen, MN 55317 - (952) 227-1100 DEVELOPMENT REVIEW APPLICATION Applicant Name and Address: ELY 5,15W1440 mUT A 1/7:. "C q8.20 -,-)< Y L.AAig EDEN , IW/V 5534rl Contact: Rj&l R PhoneA/a173e-w0`' Fax 5(r m -355f7 Email: I-M4a+zW earthlinK.fetmA.hett 3& Planning Case No. 0 lO - 13 CITY OF CHANHASSEN RECEIVED MAR 1 i 2006 NLIAN14A4CLN PI ANNINn nppt Owner Name and Address: 54m6 xis APPS --le *yT — Contact: Phone: Fax: Email: NOTE: Consultation with City staff is required prior to submittal, including review of development plans Comprehensive Plan Amendment i Conditional Use Permit (CUP) `�LS Interim Use Permit (IUP) Non -conforming Use Permit _4X_ Planned Unit Development' Rezoning Sign Permits Sign Plan Review Site Plan Review (SPR)' Subdivision' 606 1 Iz-J = ?P.' Temporary Sales Permit Vacation of Right-of-Way/Easements (VAC) X Variance (VAR) Wetland Alteration Permit (WAP) Zoning Appeal Zoning Ordinance Amendment X Notification Sign - $200 (City to install and remove) X Escrovyfor Filing Fees/Attomey Cost" $50jP/SPR/VACNARANAP/Metes & Bounds - $450 Minor SUB TOTAL FEE $ 166 6 o% An additional fee of $3.00 per address within the public hearing notification area will be invoiced to the applicant prior to the public hearing. 'Sixteen (16) full-size folded copies of the plans must be submitted, including an 81/2" X 11" reduced copy for each plan sheet along with a digital copy in TIFF -Group 4 ('.tif) format. "Escrow will be required for other applications through the development contract. Building material samples must be submitted with site plan reviews. NOTE: When multiple applications are processed, the appropriate fee shall be charged for each application. SCANNED PROJECTNAME: G-PI.PIA) e( fiNCr'�WINhiOW1E5 LOCATION:ND��W4ST CeRkJ R b -F W. Oe 61�1 s 6, -AL -PIN B-VJD �u��R55LT{oU LEGAL DESCRIPTION: SEE PtTj-f"C—�) TOTAL ACREAGE: -1 6. � ACRI.S WETLANDS PRESENT: X YES NO PRESENTZONING: 8691,A141TLIRAL 155MrT5- DMZK—1 i A a REQUESTED ZONING: t -JU N E j) law ff- jXQC1 ) PW►G--'%J-r PRESENT LAND USE DESIGNATION: Rfhl DEA/Tl A -L -Low F-)iN5 tW tll • LL - 4- LLA N� 1 REQUESTED LAND USE DESIGNATION: Rcuj poyTl AL - (.ow Qi1"511 y i( REASON FOR REQUEST: RES j PAW 71 L, TW) 40Yk1 i C 1/�t- ✓j'I EJIJT This application must be completed in full and be typewritten or cleady printed and must be accompanied by all information and plans required by applicable City Ordinance provisions. Before filing this application, you should confer with the Planning Department to determine the specific ordinance and procedural requirements applicable to your application. A determination of completeness of the application shall be made within 15 business days of application submittal. A written notice of application deficiencies shall be mailed to the applicant within 15 business days of application. This is to certify that I am making application for the described action by the City and that I am responsible for complying with all City requirements with regard to this request. This application should be processed in my name and I am the party whom the City should contact regarding any matter pertaining to this application. I have attached a copy of proof of ownership (either copy of Owner's Duplicate Certificate of Title, Abstract of Title or purchase agreement), or I am the authorized person to make this application and the fee owner has also signed this application. I will keep myself informed of the deadlines for submission of material and the progress of this application. I further understand that additional fees may be charged for consulting fees, feasibility studies, etc. with an estimate prior to any authorization to proceed with the study. The documents and information I have submitted are true and correct to the best of my knowledge. GipLAMformstDevelopment Review Appliwffon.DOC Date 51,.- Date 1Date Rev. 12/05 SCANNED CITY OF CHANHASSEN • • P 0 BOX 147 CHANHASSEN MN 55317 03/20/2006 8:37:03 AM Receipt No. 0005674 CLERK: danielle PAYEE: Epic Development LLC 3441 St. Paul Avenue Minneapolis MN 55416 Galpin Crossing Twinhomes 06-13 ------------------------------------------------------- Use --------------------------- - - Use & Variance 1,405.00 Sign Rent 200.00 Recording Fees 50.00 Total Cash Check 5222 Change 1,655.00 0.00 1,655.00 0.00 GL -i1 SCANNED Breakdown of Fees Galpin Crossing Twinhomes Planning Case No. 06-13 $425 Conditional Use Permit $780 Subdivision ($600 + $15/12 lots) $200 Variances $200 Notification Sign $50 Recording Fee $1,655 TOTAL FEE $1,655 Check No. 5222 l6FL/ SCANNED 0 20M RYAN BlGfEEWG NC. SITE Q m �arH St w ig1H St w HWY S i HWY. 5 1[R s a�w b u a e m s F �I1Y WY !R A fAY iminary Plans For GALPIN CROSSING TWINHO Chanhassen, Minnesota DEVELOPER: MEPIC DEVELOPWNT 9820 Sky Lane Eden Prairie, MN 55347 (612) 730-2814 CIVIL ENGINEER: Rya Engineering LAID DEVELOPMEW SER ES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 (952) 380-5010 (Fax) �ryenergiieerig.o CITY OF CHANHASSEN RECEIVED APR 1 9 2006 CHANHASSEN PLANNING DEPT SCANNED GALFIN CROSSING REMISED 4/19/06 0 2006 RYAN ecwEavJG W. 158071'47• ='17.t2T V� �\ \ SEIZ4TE @L \REQ `ems —°°wu� 57911• .E % OUTLOT F i 1 \ \ 4 I ESE 1 o-: �NkR�� r —966' SST ._ -966_ — ``s _/ . �\ \ LEGEND V I ESS1M0 1Bf20g0 l I \ S Rc,,Y Se.a —A— — SANITARY SEWER —�— t \ , WATER —I— — WATER —I— p4 Kro. W/VALVE I— - Hro. W/VAEYE �..f V STDRW SEWER —GG— STp SEWER —4" WETLMO —M— MU1T CREEK---BCPC--- PRWMY CORRIDOR BOUNDARY vimINV= 5 mx 1rGQ1 5] per_ 15 4— C/ Y_965.03 _956 79 21' RCP O 0.55 1 CITY OF CHANHASSEN RECEIVED APR 1 9 2006 CHANHASSEN PLANNING DEPT 1 CMYENFENCE STORE \ ` tST F EtEV-967.25 / \7 / — LOT 1 0' S0' 100' 150' Rya Engi007 neering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, NN 55331 (952)380-5000 WWW/7OMI�MWIpGP.1 I MmI midi .1 Ne dm. iRimlin. &W AYEN ftt Ipn. N, "y .wuy+. w. IA. am a u. A.(. N Mr t. Sq .. GALPIN CROSSING TWINHOMES Chanhassen, MN for M EPIC By,Td ae.:,p Name cYo..r B QO ❑ICM By ter. PUR 3MM Re.iamt auvroe ti Cglt.ieW cW.e.r Majed For Date SdWrA fl1p W Z:= C�artruc4. Existin.9 Conditions P" P-1 SCANNED ® ' we RTAN BKliEBf.4 NC. Fr OUTLOT F A oMNER: V RALPH5.-%e W d' BA/ffiMA ELSE 7119 VASSETRAM WTLMD —W_ CHANHASSEN,. 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YN 55X47 982 9810 LANE I 9 JJl53 FOEN PRA MARX, YN SSJI) 10 11 J. 7J5: X1!5* CHANHASSEN PLANNING DEPT 11 J, 735± NX 'b IJ170.7)83 OUROT A =41073 I Told BLOOL 1 18515953 Ay. LP! Arse 18883 TWO RP! Neo 185.595* / DEVELOPMENT DATA LOT AREA DATA / ION ND: / EXISBNGZONAgricdcfwd SWOLC FAY OELELOPLIENT AREA 6.103 s/- AC / PROPOSED ZONING: Pbnned we Oewlapman! pIY PLAN ' 52 1 I ° XLWMHUTZ XVELOP r X50 Herr Ita E. PO BOX M ' OIAWA, LM' SSJ18 r\ \ ONcrR \ \ OTY O' EHAMIAS¢N \ PLBOXr4] \ \ dGHHA55EN YH SSJIJ lV. / / LOT 1 esA tl (1.1-4 Llvfs/Aae) PROPOSED LAN° USE 1.0 Ilnifs/Aoe LOT mW R AREA SF. LEGAL DESCRIPTION 1 IA7JJu CITY OF CHANHASSEN Mir" OFS TNW r0 BE SU9MTTFD I 3 4"1 RECEIVED AMOI 5 J, 7X53 B ) A71S 3.735* APR 1 9 OENiO 2006 C DEYELMYENi XN, LLC B 3..7351 982 9810 LANE I 9 JJl53 FOEN PRA MARX, YN SSJI) 10 11 J. 7J5: X1!5* CHANHASSEN PLANNING DEPT 11 J, 735± IJ170.7)83 OUROT A =41073 I Told BLOOL 1 18515953 Ay. LP! Arse 18883 TWO RP! Neo 185.595* 0' 5.0' ,1X1' 150' Rya Eng07 ineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MRN 55331 (952) 380-5000 -W W)rm,..ak.arll %— wnM1w 1'tl qu wieaHaim. vM .'wwa WNW AT bM uq m W ow qll .NA" Ey W W Un lees a Ws sloea Wn . GALPIN CROSSING TWINHOMES Chanhassen, MN for U EPIC Project Ha D:9•Td Oreenq None aP.n B QO CneaBJ PA1i OPfs Ra,dxns3/m/06 4/a/Oa I'ee Lis aelleW OalwllWb Issued For Datw adwmbc Deed Design De"loprnent eWninay Hein RW Re low Preliminary Plat Page P-2 SCANNED 0 2008 RYAN ENGfffi►K` NC. I / RQ - --•�. _ I `yt� \�itl!/ten OU TLOT—\ t - I WETLAND BASIN N0. 3 A \/ \ L—�wLJ \ �-2 ' 8 \'�S; \'tea\ \\ ; /. 0y0 4 — — — \01000 3 5 6 nv/�J�L,,\ \ \\ \(\ III ti 6 `L\ \ \\ \ \III I! / e 965.5 \, 5 �1 la \111111 I� I 2 m / 1 / / O R M , a INV=956.12 / i �Tr 11'1'111 ' 9 9 3 1 2 1 / 0/ 1 1 I 1 Li%T LEGEND sea. a r - sa . 7 721 97 ~ 4� nwL INV= >rep per_ lir �'S rL 21' RCP o 0.5E \,1 I \\ r \ -927-- EM"NG CONTOURS (BR N INT 5T-2 MER.WO WL— / ,M 1 I \ (BRAUN INRRRC) Yt BLUR CREEK ---0CPC-- —927— PROPOSED CONTONLS PRWMY CpiPoOpi SAMTMY SEWER—Y- - BCUMOARY 1 I \ BAIX YARD ELEv. (LO) RT FENCE \ � BASEMENT ELEV. (w0) WATER —I- T GENERAL NOIrSE PAD PREF. AREA sea ENSTING SPOT EIEVA90N NYD. M/VALVE —�- -y //111111 V Hd15E 11PE p 05U PROPOSED SPOT ELEVATION STORY SEVER —Ye - 11\1 ' GARAGE ELCCR ELEVAnI Use= 815.5 E SHED RO ELEVA90N STM SEWER M ,"� -' 9 2006 L.MANHASSEN PLANNING DEP-, { 1 •t i0.68 / i 9.83' 1 I� a � � / DWYO IEHCE Sim\ ` LST FLEIEV.-987.25 \1 / — LOT 1 b X 0 50' 100' 150' Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street EzceMor, MIN 55331 (952) 380-5000 wwwryWnenyperYprm. DmOr cpOy mui m; 0, * 1-1., O rgxt wap�N Dy maO inEs my Fcl aq..om mL Mal � m a Ny qa.w rnp�aa wa. m. u.a a m. s.0 a rmmu s;wDw R.ya6ateM. GALPIN CROSSING TWINHOMES Chani'1fl8 eR MN for MEPIC Rppcl Mo ayrd ay.a�9 nm�v Po.n B� ERA ZF« ey Plfi Dare Raxsiaef�� VVINP CM Rva.e caerr �a/9e P. aV IrY.. ovl.I.r leered Far Date 9d..t. Dedpr eYmReve% y "�''Flevlee fywl N Preliminary Grading and SWPP Plan P-3 0 zoos MAN BeDNEER!G N0. L— Nmc Na melNcem aYY¢ TNMNNI � :.v '�i�aon s ANllo cwTrl GENERAL GRADING AND DRAINAGE NOTES CWMACTDP SMALL CONTACT GO NW STATE OW CALL FOP UTILITY LOCATIONS AT ASN-WOZ DHE LTNWACTOP BALL MV?WY THE LOCATION AND EIEVAROW W EX6WG UMIWS AND IOPOCINAPHCLL FEATURES WIN TIE OWNERS AND WLD-WREY PRIOR TO COWSIRUCTIW. INE CWMACTM SHALL sM EDIA MLY NOTIFY DE ENGINEER OF ANY OSOEPANOES W VANADWS ALL CWTOLNS AND SPOT ELEVATIONS ARE SHOWN TO Fsd HED SURFAMIDI/TIER HADES LNLESS ,,LW OIIERMW REFER TO PAVING PLAN FOP DETARED SPOT ELEMIFONS WADE PEMTNrAGES AND LER TICAL CURIE WORMA TIOP. ALL SIL! FENM SMALL LE N PLACE PRIOP TO NITOIICN OF EMMIILNN AND SHALL BE YAXITANEO WM YABE TE.NF M OtONO COWR 6 ESTABSAE0.. AI WNW IBE IT SMALL BE 01E100WD. TEMPORARY POKWE DKK HAYBALES EIC. IfEDUNED BY INE DIY SMALL BE AV DONTAL TO TIE WADING. DIE CWMACTW S♦ALL Ug A ROCK ONSTRUCTNN WMM/Q ACLOGONG TO DE DETAILS ALL STREEIS OISR.NNCD OLNNO W(NgD NO AS YISI BE CLEAVED AT TAE END OP EA01 NQPNIIf� DAY. MAWL Is MMB FABWC 9MLL BE NSTALLM AMR DETAIL AT ALL CATOM BASKS (NCOENIAtj TIE CLWMACTM SFYLL NAME P09OW OBANAM 6 MANTAMM FROM THE SIE A/ ALL TIMES CW MACIGI SMALL BE RESPINSBLE FDP EMPWARY WOES. P"Aa M OVER LEANS REGAWPED TO NSOPE BE m ED WW O IT CLN51 WTIIOW. LOW POINT$ N M}ODWAK M RAGING PADS MUST BE PM)VDED MM A PoSTIW WMOW W DN Z DAYS OF COWREIIDV OP O,M4 ALL SEAMY WADED SLOPES SHALL BE�RTILJSEEUED, WITINE NO, SDA AT A RA ITE O" F5 PO.NOS' PW A W MAMMAL SAND IMIALOWD IN ACCOROMM WIN W ONNANALLLL W NPEE I RADS AI OF 2 TONS PER ACRE ALL PO1DS SMALL LECEIW A W"MANO SEED YXTIAPE NO, ZSA ABOW TIE Net PM ON S -FC JAWS ALL LPLAND AREAS DISTURBED AS A RESAT OF CWSMUCTICN AC??WWS SHALL BE IMMEDIATELY WSTONED WN SEED AND DSC-MULWED. WWREO WN A WDW-yXR BAMMr M SODDED WDVI TWO NEEKS OF COMPLERW OF EAW ACRNTY N ACCOPDANM WM WE ONS BEST MMALEIIENr PRACTICE HANDBOLN. OLMU ri PAD NOD DOW 9WL BE 1'-0'. MJAOWAY HOLD DOWN SMALL BE PER DETAIL BEET. �_ vLloPfv,Nf sEC11CN NO TES I 4WMM --------- Mh'pr ti Naw w META S,M¢ 9pTTW 6 EIRWC 5 -St x114D x "S"N AsIT NIET PROMCDW SMALL BE 'TYPE B' PER THE DETAIL SHEET AND SHALL BE YANTANED DNNXAN ODNSIRUCIIOV. IS MIEN PentLUO AS ARC 10 BE WADED FIST A OWM OF B NOES MAL OFAOE %T 714M YAANIV M~ Y PI REY>OPMY OOD SEED YYD/RE SHALL BE I OF MOWED AT A RAE OF ZS PONOS PER ACRE 1A.401 PER ABOW RALE )ST -a STNEEN PoSn UPON OND OF MASS COADTRWDO TIE PODS 91A(L BE ENAFK IED TO !NAL WADES TINS MC1MOl1INfi ANY B NAPE OP PWSW(5) CYwd/CING my P cnONS aIER EIYiC POST MAY. By Mt0a,, TO AS PART OF TMS cERRFlCAnOV W %S. INSTALL SEEDED. STAKED FIBER BLMIwr5 W LONG M STEW SLOPES (a T W YOER) WE C DAIS AND AMGNT OF RANEALL EWNTS OIEAIER THAN 1/2 WON (05 NOES) N ZA HOOPS AND DRIMP ENFi F DOCWENTAMYI OF O4MXS MADE TO THE SPPP AS WOOI N PART W.AN. W M OANh BMES STMOD AOOWESS It TO xA' TRy SIMR VIES S,MeD x MUT S T S VINES PER eML w,ER . Nro NO NfesSEYYCNT TO wWACIw SLOE nNeO sWAe NAE la PRCWIi PPNG �aRHD w1ER I EM[R BAAI d MIDI NREt n rIBNf. NC WM MU`hl. MOTDIU F Lh Nny omen ua ,Gnr CO¢O 1 EEAIE M $x1 S X x nC nIP MW lS MINK A 9RLwY Id PARLM. id zmnwNT SIRAI WE MET �� EEDiQIT RiR ALL CriNSMUCTIW ACRYIES TO B£ N ACCOPOMCE WN 'CWSMIK/KW ACTIVITY REG.WIEYENM' AS DIRECTED N PAR! IV. DWOl NO. BUT ARE NOT LANED TO TIE FOLOWNG: PEE OHLETS MUST BE PBOYDED NIH T IAPONMY M RBitANEHT ENERGY OISTLPAMN WDWN ZI HOURS OF CORECTIW TO A SURFACE WATER. SEDIMENT CONTROL MACDMS MUST BE ESTABUF D ON ALL DOW WAGENT PERRIEIERS BLFORE ANY W MAGENT LAUD DISRATBNG PRACTICES BEGIN. INESE PRACDMS SHALL REMAN N PLACE Witt FINAL STABILIZATION HAS BEEN ESTABL I N ACCORDANCE WM PARI IV,C ALL CXPOSED SOL ARES WIN A CWTVNOUS P09TIW SLOPE WTFWN ZOO LA.EAL FEET OF A SAPFAM WATER. MUST HAW MW0I? RY EROSIOV PROIECIKN W PERMANENT WWW FW ME EM SOL AREAS YEAR A101MV. AttCBGNG TO INE FOLDWING IARC OP SLOPES AND DIM FRAMES TYPE K SOPF 119 (YAAIIW THE AN AREA CAN AMMAN OPLN WEN TIE AREA STEEPER MAN 1 1 F DAYS 6 NOT ACRWLY BEING NO MEO) TO I TO 1I N DAYS FLA ITER MAN tat ZI DAYS INE TNAIIr LE ITE NSTALLATKN OF SEDIMENT CONTROL MACTOES MAY W AD.P/SM, TO AMOMOOAE SNOW! -ERY ACOWTES SAPI AS OEARNC W WIABBMC W PASSAGE OF WHDLES ANY SIOPT-TERM ACRNTY JOIST BE COYMEMD AS OLAWLY AS POSSNtE AND DE SEDWENT GNDTp. tBACTCES MUST BE INSTALLED AAEDIATEY AFTER TIE ACITIN 6 C EIEO. In7NEWR. SEGMENT O NMOL PRACTICES MUST BE INSTALLED BEEME DE NEVI PREOMTATEN EWNT EVEN E W ACTIVITY a NOT CWMEE. ALL STMM WAN NLEIS MUST BE PM)MCMT BY APPITWMATE BMs OUMNC CONSTInXTIW UNTILALL SOURCES WITH POENDAL FW OSWARWD TO OLE NLET NAW BEEN STAOXWD. EMPWMY SOL STOOPPeES MUST HAW SAT FENCE W TITHER EFFECDW SEDIMENT CONTROLS AND CANNOT BE PLAQD N SLFIFACL WAERS NO.UOND 570RAl CWWYMMS 51101 AS CURB AND WNER SYSTEMS W CGNG/IIS AND DITCWS WMCLE MADOG OF SEOMWT FROM DE CONSTRUCTION SITE MUST BE 1NNIbUIZED BY Bt's SDH AS STOVE PROS CODREE M STEEL WASH RAOOS W EOBVALENT SYSTEMS STREET SIWEPNG 01ST BE USED E SLAH BM's ARE NOT ADEWAE TO PAMWNT SEDIMENT FROM BEING HACKED WTO DE SDPEET ALL LOTS WI11N MS DEWLOPYENT SMALL BE MASS MAX, ALL WADING $HONK W RE PLANS SMALL BE COMPLETED N A SCBSEOE.ENT AND ENPEODWS MANNER TO NSEW PM)PW MANAGE AND FWDIANNG DE CW MACTM IOENOXO M INE SMPPP MUS! RG/MELY NSPECI DE MN DIC THE CONCIIOV NNR OP PODS PNASNG k TWIG OP RE POD CWSTM/CRW NOL BE CODPONAMO WIN ITE ENOiWER d' ON OTEYALS MIPWDAI IA 9E FIERY SEWN (Z) DAYS OL,TN AC CCr IIDV AND WNF E N(7) TO INS -W ALL SATECALMS AAM N NAM TO ItNMZE EM)9W. HOURS MER A MEA1W THAN OS NOES N ZA NOUBS NIET PROMCDW SMALL BE 'TYPE B' PER THE DETAIL SHEET AND SHALL BE YANTANED DNNXAN ODNSIRUCIIOV. AND TIESALL �CVRDS MAE A IST BE NMD W N SMPW ACCO9JANM WMSPMr LD ICON 1M TM ARC 10 BE WADED FIST A OWM OF B NOES MAL OFAOE RECORDS OF EAW N9'ECOON AND MANENANCC ACRNTY SHALL NOIAX M~ Y PI REY>OPMY OOD SEED YYD/RE SHALL BE I OF MOWED AT A RAE OF ZS PONOS PER ACRE 1A.401 PER ABOW RALE A DATE AND MME TE N9'ECMNS UPON OND OF MASS COADTRWDO TIE PODS 91A(L BE ENAFK IED TO !NAL WADES TINS MC1MOl1INfi ANY B NAPE OP PWSW(5) CYwd/CING my P cnONS SEDIMENTATION DLOIV SEDIMEN IAGN OI.YIINK' C10N5IRIKIIOV AND NLOWNG PRIMER NIL MANAMA C FNDN'G5 OF N9ECIKNS NCLLOI C WCOMYENDATAAVS FM CO'NECTIW ACTIONS AS PART OF TMS cERRFlCAnOV D. COPRECTIW ACTIONS TAKEN (WOUOPD DAMS TIMES AND PARTY COMPLETWG MANIWANCE ACTIVITIM INSTALL SEEDED. STAKED FIBER BLMIwr5 W LONG M STEW SLOPES (a T W YOER) WE C DAIS AND AMGNT OF RANEALL EWNTS OIEAIER THAN 1/2 WON (05 NOES) N ZA HOOPS AND WAGING MAN GENERAL MEAS HATOEO F DOCWENTAMYI OF O4MXS MADE TO THE SPPP AS WOOI N PART W.AN. PROECT TYPE: RE9DENIlAL DEWLOFWNT TOTAL 9E AREA: ♦/- B.1 ACRES TOTAL OASTAYBEO AREA N/- 11 ACRES MAL NINOT COEFFICIENT. 0 B MI 6 ... A ONOER YY DIECIKW M SO°ERNSCW N ACCQPOANCE WMA SYSOM DE9GYED M ASSURE MAT e/a a MB BASED W MY NOLNY EE THE PERSON M PERSONS WO MANAGE DE SYSTEM. M TIfOSE PERSONS QRAH n.U0 SNNOOWS BSI OF YY RASDNLEDGE AND LELEF. TRUE ACCURAE. AND COWNPLEE I AM AWARE MAT DERE ANE Me S,1o(Eo npnr. cN,M BA9N STONED: DEWLOER CWIACT DAB YE, DAM:-_ O NMACTORS CERTIFICNTIW A NA RONAL POLLUTANT GSWAMAT ELMMINATION SYSTEM (NPDES) WRYT MAT AUTMZES THE STOFM r PpINC NEG, BBtl.]SE \11 we xE, AS PART OF TMS cERRFlCAnOV 9Rfw. FW WE MSNLE FOR 9Cf NN1[ CWMACTM MNEI CONMACTM MOh. YCEId A - AOOWESS ,. KKE CU@ TIPS BSI.VEN, Beim$ p QNnP AOAK SAR, SEGIMOC . YORE w,ER . Nro NO NfesSEYYCNT TO FHCNE NUIMBER SEPMAn EMV Mx6T DA E: I EM[R BAAI d MIDI n rIBNf. NC WM MU`hl. MOTDIU F Lh Nny omen ua ,Gnr CO¢O 1 EEAIE M $x1 S X x nC nIP MW lS MINK A 9RLwY Id PARLM. ♦. NSPCC, NIFYPh $4ENi ESA MEj KIFR Eb1 S1MY KNI. SnIO t NM EST aAL� EwKE 015, Z RMHD TRW "N", n'C 1MN]ID wf Y1EAAn1T. n NT ama� CITY OF CHANHASSEN RECEIVED APR 1 9 2006 �HANHASSEN PLANNING DEP- POLLUTION PREWNRW PLAN CER7ltXATIW I MRTFY INIXT PENALTY OP LAW MAT DNS DOCWENT AND ALL AITAONENTS NEW PIEPMIFD ONOER YY DIECIKW M SO°ERNSCW N ACCQPOANCE WMA SYSOM DE9GYED M ASSURE MAT OVLNED PERSWYL PROPERLY GATERED AND EVALUATED DE NFOGNMAMW S/BYTTED. BASED W MY NOLNY EE THE PERSON M PERSONS WO MANAGE DE SYSTEM. M TIfOSE PERSONS DNECRY AMSPOV9BE FW CADERING TFE NFOtYADON W NEMMAIION S/BINTTED M TO DE BSI OF YY RASDNLEDGE AND LELEF. TRUE ACCURAE. AND COWNPLEE I AM AWARE MAT DERE ANE SIOAFICANT P RIES FW SONFIOPG FALSE NEOINWAPLN. NCLLDNG DE POSSB IYY OF FNE AND NERISOWENT FW KNOW VIOARO/S STONED: DEWLOER CWIACT EPIC DEWLOPSENT XVI. LLC DAM:-_ O NMACTORS CERTIFICNTIW I CERTIFY UNDER PENALTY OF LAW MAT I UNDERSTAND DE ERM5 AND OXDIDONS OF DE GENERAL NA RONAL POLLUTANT GSWAMAT ELMMINATION SYSTEM (NPDES) WRYT MAT AUTMZES THE STOFM WATER DISWAMES ASSOCIATED HIM INDUSTMAL ACRNTY FROM ME CWSTZLI71 N SITE IDENTIFIED AS PART OF TMS cERRFlCAnOV SWATUFE FW WE MSNLE FOR SIGYIED: CWMACTM MNEI CONMACTM CONMACTW 9WAMAM AOOWESS OMI: STATE M COX FHCNE NUIMBER DA E: Rya Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Ezceleior, MN 55331 (952)380-5000 —m -ne pxesincL. I Mroy vYI OW N,M WCErnIv rpl w PMd M Me s u,l..1 6x1 im,I M xx I sn a YT ,gNNNI E^1G NW W 4n a M Axe o1 lRxmla. pyNlrolip. Np DNN GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC ONINHN Oro , Nan. gelipli aPM ey ETA aN By MET B%EI NcN S Muted For Date aNmT be Design PreiTilWy P. I, F-SIW FM,*w PRELIMINARY STORM WATER POLLUTION PREVENTION PLAN PW P -3A 0 MOB RYAN EPOICIN93✓<i W - JSIT SETBACK FRCW OWW.L. BLUFF CWEEK_—: eLBc sfB raw REAR PRM RTY LWE OUTLOT Iy m ONL-0T_/S— /' > I WETLAND BASIN N0. 3 —0' CIFFSET FROM W`--� i ARY CORRRRAW B L 0 C K 0 N_ _ 4 13 I � I •I 1 � �� . 20' VIDE OMW [, � , \ ss F, o:.uia as�•,- 12 n 10 \^9\\ R 8 H y 1 t 5 IIj 2 L-41 VI' I 81 =95955 SNH SRH R7- 951 6) � RE c / I / / / RIM -960 5) / INV=95064 / RIM=960.57' / INV -95p65 / / /IUKIWOVIAIIQ •nWA ^AN AHD SmilaT Sww —G- - SANITARY SEWER —�— WATER — 1 - - WATER HM W/VALVE —I- --0 HYD. W/VALW STORW SEWER —CG— SMIRM SEWER N WEIUND —WL— BLUFF CREEK---BCPC--- PRIMARY CCRMOOR BOUNDARY \' _ IF .5 OSE0 8 nCp 1 INV= ST SM .SAN SENIOR RIM=962.20 « P RCP O 05% «Ia' ONNECT TO \ "SMC 18'0el / SITE DATA S, Ff. Am. I I . CMSS SITE AREA 2653953 6102 MGHT M WAYS OS 03 NET SIVE AREA 2655952 6.103 SITE DENSITY 12 SINGLE-FAMILY OWELLWC UMTS ON 6.1 AC. - 2.0 D.0/AC - CROSS 12 SINGLE-FMILY OWELLWG UMTS ON 6.1 AC. - 2.0 DU/AC. - NET GENERAL UTILITY NOTES CITY RECEIVEpSSEN APR 1 9 2006 CHANHASSEN PANNING DEPT / 1 i RIM4965.66' . IN1(c959.83/ 1' a h > \ \I 21- RCP O O.Sx THE COVRACRW SHALL VERIFY ALL EXIS WG CO"PoI'RCWS P W COVSTRUCRCIi AND NOMY TW OWNER MANY CAFTERENCLS ALL 1tVW SHALL BE CO RWCMD W ACCQ ANCE WITH THE CITY STAMARB SPECAT "WSS PRO LCT SPEOIT MNS M AS LIOOIFCO WWW UNLESS OMERWSE AUTO. M AS SPECIFIED W THE ASOW NOTE. ALL MA TEMALS. CEWSTRUCntIV MCMROUES AND TESTING SHALL CEWFCRM TO THE 1999 CO. M THE -STANDARD UMIWS SPECIFICAROVS FOR WATER MAW AND SERVICE LWE WSTALLAr1WI AND SANITARY SEWER AND STORM SEKER WSTALLA RM BY W CITY ENONEDWG ASSOCIARQV M MWN.' AND TO THE 'STANDARD SPECYFICAnCY FOR F WAY CQVSTRUCT CN' MW N. DEPT M TRANS 2000 EwI MLr11R1'NC RR' CURRENT ADMNOCW. THE CEWTRACMR SHALL RECEIW W NECESSARY PERLNTS FOR ALL W WTSW M RCI PRMERTY LARTS SEE ARCH PLAN FOR EXACT BLOC LOCAMW. SEE SIE HM FOR LAYOUT BMENSW S, SERVICE ENTRY LOG RLWS TO BE C(XWWM TED MRI THE ARCHTMCT. IERIFY EASRWC WWRT LOG & ELEW PMOR TO BEdNMNG CLW'STRUCREW. THE WATER SERVICE SHALL BE WSTALLED WITH A NW M 7.5 FT. M COWR. ALL STERN SFWER PIPE SHALL BE CLASS 5 MESS ORWRIISE NOTED THE CONTRACTOR SHALL CCWTACT 'GOPHER STATE ME CALL- FOR FOR URLITY LOW ROVS MCR TO URLITY WSTALLAT .. �- R30=969.51 INV=960.63 \ TOM SIT 26;595 SF WETLAND AREA - 27..527 S' IPs' .I 1RERWOUS AREA - 51,051 3 (22.845 SF PWT ♦ 12 UMTS O 2757 SF EA) ( TOTAL MPERMCILS AREA/(WTAL STE - WERAND) - x HARD SURFACE 51.081/265.595 - 27.522 - 21x HARD SRFACE (REOUW&RWT c- 30%) SITE DATA S, Ff. Am. I I . CMSS SITE AREA 2653953 6102 MGHT M WAYS OS 03 NET SIVE AREA 2655952 6.103 SITE DENSITY 12 SINGLE-FAMILY OWELLWC UMTS ON 6.1 AC. - 2.0 D.0/AC - CROSS 12 SINGLE-FMILY OWELLWG UMTS ON 6.1 AC. - 2.0 DU/AC. - NET GENERAL UTILITY NOTES CITY RECEIVEpSSEN APR 1 9 2006 CHANHASSEN PANNING DEPT / 1 i RIM4965.66' . IN1(c959.83/ 1' a h > \ \I 21- RCP O O.Sx THE COVRACRW SHALL VERIFY ALL EXIS WG CO"PoI'RCWS P W COVSTRUCRCIi AND NOMY TW OWNER MANY CAFTERENCLS ALL 1tVW SHALL BE CO RWCMD W ACCQ ANCE WITH THE CITY STAMARB SPECAT "WSS PRO LCT SPEOIT MNS M AS LIOOIFCO WWW UNLESS OMERWSE AUTO. M AS SPECIFIED W THE ASOW NOTE. ALL MA TEMALS. CEWSTRUCntIV MCMROUES AND TESTING SHALL CEWFCRM TO THE 1999 CO. M THE -STANDARD UMIWS SPECIFICAROVS FOR WATER MAW AND SERVICE LWE WSTALLAr1WI AND SANITARY SEWER AND STORM SEKER WSTALLA RM BY W CITY ENONEDWG ASSOCIARQV M MWN.' AND TO THE 'STANDARD SPECYFICAnCY FOR F WAY CQVSTRUCT CN' MW N. DEPT M TRANS 2000 EwI MLr11R1'NC RR' CURRENT ADMNOCW. THE CEWTRACMR SHALL RECEIW W NECESSARY PERLNTS FOR ALL W WTSW M RCI PRMERTY LARTS SEE ARCH PLAN FOR EXACT BLOC LOCAMW. SEE SIE HM FOR LAYOUT BMENSW S, SERVICE ENTRY LOG RLWS TO BE C(XWWM TED MRI THE ARCHTMCT. IERIFY EASRWC WWRT LOG & ELEW PMOR TO BEdNMNG CLW'STRUCREW. THE WATER SERVICE SHALL BE WSTALLED WITH A NW M 7.5 FT. M COWR. ALL STERN SFWER PIPE SHALL BE CLASS 5 MESS ORWRIISE NOTED THE CONTRACTOR SHALL CCWTACT 'GOPHER STATE ME CALL- FOR FOR URLITY LOW ROVS MCR TO URLITY WSTALLAT .. �- R30=969.51 INV=960.63 \ INV= 5 0 / / ) / 1 X 0• 50' 100 150' Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 IVR , -Wy m ea ,l imffi m. � - PT W eT m. o ..W. •T W M.1.a WVamT M.tt"EWuwMM W . 0 mtc GALPIN CROSSING TWINHOMES Chanhassen, MN for M EPIC FM,ecl Na Dgild Wang Ape, 9001 Bim_ CTWWaO By�a ORfe Www Rex..6+r e/D/0e M1 ffi Ilnln CWmIMW1 A//M1M M1 ffi R.Ww CwwnWM1 haled For Data Sdvmac Design Design as : RWWer - Fins! ReNew Preliminary Site and Utility Plan Page ME ® SODS RYAN E NCINAE12RO INC. OU TLOT F I n/ �— _'^.F,p ss Ex4- »/� �n EASES yI- ♦ f:. ft.. \ . OUTLOT_ A -- li WETLAND BASIN NO. 3 .�/ B 6 O C K O 13 n Yj 2 I al r 2 9 10 mEE rwNU^r PMOTOLRAPNY ;S - TWINHOMES REQUIRED TREE CANOPY COVERAGE CALC. TOTAL EVSTNG CAMOPY COVERAGE ON SITE . 111 ,w I•xN NTAAM No REOARED CANOPY COVERAGE (1-01V DENS RES10.) . 251 i Y pyNABiES� i mn. REPLACEMENT REOAIED: c Tlx•IE rm PB.,ws Ca rT. o rss,d w.c m,. TARGET CANOPY - EAISTING CANCPY A UMANO AREA EXVCCO BY 1089 T m¢NI[ Wt• mrt. (251-111 . 25)Q Ili X 238,018/1089 . N 1REE$ xBTc Na Nr,rN6 MNL ¢ viasArt mam MUS MM w WAOEq (M9J uNn ¢TRY1 EMSTING COVERAGE REMOYEO (Ii) x 1.2 (PENALTY) DIVIDED BY IOB9 wc•INI• s+sar 4 r MRAAm rM 2,2BO x 1.2/1059 . 3 TREES �• NAxrwx TOTAL TREE REMACEMENT REQUIRED = 22 TREES REPLACED - 30 / / BASELINE TREE CANOPY COVERAGE CALC. PLANT LIST / NM•¢ ¢ aNw x E TME / TOTAL MAT AREA = 285,595. S / METLANO . 2).5T/. V 'B IIr¢ .¢S n •'¢'� TE �B� NET MAT AREA . 238.0182 SF qNWAN /@ 9WISH/iREE COVERAGE ]],190. S xixm wi BAPa ] NWB (EACLUDNG WETLANDS) Mg. xaEWoam 11'(t is I = TREE CANOPY COVERA( 33.190. 7 (111 EXISTING COVERAGE) Is Ya a wp P fDld h[ "M0 xlSOt.x l.E a (•Y ;S - TWINHOMES REQUIRED TREE CANOPY COVERAGE CALC. TOTAL EVSTNG CAMOPY COVERAGE ON SITE . 111 ,w I•xN NTAAM No REOARED CANOPY COVERAGE (1-01V DENS RES10.) . 251 i Y pyNABiES� i mn. REPLACEMENT REOAIED: c Tlx•IE rm PB.,ws Ca rT. o rss,d w.c m,. TARGET CANOPY - EAISTING CANCPY A UMANO AREA EXVCCO BY 1089 T m¢NI[ Wt• mrt. (251-111 . 25)Q Ili X 238,018/1089 . N 1REE$ xBTc Na Nr,rN6 MNL ¢ viasArt mam MUS MM w WAOEq (M9J uNn ¢TRY1 EMSTING COVERAGE REMOYEO (Ii) x 1.2 (PENALTY) DIVIDED BY IOB9 wc•INI• s+sar 4 r MRAAm rM 2,2BO x 1.2/1059 . 3 TREES �• NAxrwx TOTAL TREE REMACEMENT REQUIRED = 22 TREES REPLACED - 30 NOTES 0A 01 PLKIT AvKAWtt, THE LETEL V RESERVES ME MW M M `Uw NE RBGTE TREES .. TE SAME CAT/f ' rM PM011 RRPWVK MiW TE Ott K 6 NO3 •T TE GINE? AT TE E A RN•1E0 NL NYD Ip.]X •vIiABR1TY w SWIM: rbI WEA RIN W. S NB•1TD AES MT R EM,T TE us Mw NST K "ENT) SOEIES (NEENUIR OT01 E¢1 TQS� C�C9ll.lEO wS IUTEi) M0 Y¢E M.M W -T (TME a THE AES MAT BE EAIY Klv W N) WE 4 M& AES NAU K usm MAT ARE .eRipYATE W THE 504 E NTks E¢.NI M ME STE .NO AES N" AKRAGE AT LEAST TRO-Kq-PIF-XKf-NOL CAWER W MAY BE • YNLW 0E fNC-NU-¢1f-X.44-NQI CKNER. Iqi L£R MAx TExT (ZO) PF�NI 6 M 1RFF5 SxKL E COiF16. 6 9RR(B) TFEi M •Eg1A'4A•Q $(SELL (f) TIBET NBBE A T 9 L/YIY AEi 91M1 K TRy mNlil(0 NJ6EAY S. AS ENMEO Ng 0xT011EL BY MIMESBTA STA.X YcT s m" TR¢INI IaN. ME RLµ PEST ACT. CITY OF CRANRASSEN RECEIVED APR 1 9 2006 CHANHASSEN PLANNING DEP' lff$jq i i i CONVEWNCE STORE r i 0' 50' 100' 150' Rya Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952)380-5000 .vwwlYRr••nprlMr Vcam A.ar aXBr Bal Wb aRE �Ia. xgal .. PWRN h •R a nW NT 6.[I Rp•gm sq Yql l en a Yr :qNN LAPS .MB M bN M N Ma. a Nnxaa.. GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC R.)sYt Na Oigira/ O.o q Nave aR.x9011?11`4'6� By OLD aen(ee ay PMR OR s REnsiaOs3AGIOB ,raroe.. (1, RNB• cTNMM m 4101011 ti w R•MBB Qa..W. IBBUQd For Date s mmk Dahl eimvY R -18w Fi1el RBWew �don — Preliminary Tree Inventory/ Landscape Plan P-5 ®2005 aYAN E340iAE84M INC. CITY OF RECEIVEpSSEN APR I 1, �v i�. �. o l^`O -g'• APPROAYVA TE WE CANOPY 9 2006 — J•;, — � �. lRQV ACRIAC PHOfOCFAPNY CHANHASS 0 U TL 0 T F I / �� EN pip NNr /1 ERS/., x NGDEp7 f0/ /�i� E'✓ �'�� its ar8`a yb.�m: a�dr_ OUTLOT —L/ I WETLAND BASIN N0. '� 8 L 0 C K O N $ \\ee r..:�OsyF �m �' 13 + r: \ Poo �\ II 1210 R 9� \ 860 �\ Fy B2 WEST 5 78 / ? s�T � --__ ? 4 r� 3 ® / 2 e / BUFFER YARD TYPE B REQUIREMENTS RT / REMaST T CONVEniENCE STORE } OKRsttq. WES / •LCA �i TIEEs PLANT LIST - WEST 78TH ST. - 860' PLANT UST - GALPIN BLVD. - 210' / U' G�! / / sTen m Tnrra ...r as sAAa m i I / � 9A(Z Ia1e>.a / m9ue• sRa r W � } .A« w aua / aAaleR awa e' we S_ �—p / ® s. awes w •wl¢ a rauT.Ac ® ,} aw6 m •AVAE x ruRA•c ``� / q ,aion'�""mc mw""o Pr-m}"•"m ..ET a ape'10we11nAaa Al. .1. / ,r -i:: mWinw�^L*EA {' mm.cr rw .wl ;F 1. mlTwa mn.c. rx.wr r-. cwTw O p,R6 L1' Le}L 1V'-}� Epiyr• dMES A V 4C Ar -le. ONTM • y.0 WEE w 4,R[ RC rpywwc } a,ML WES TO xp,¢ TK rplpw. 9•.4G aM.rR[ r ••• I w..es�ia 14C 9w» ! W Is 4 R�Lla.wlud[ s E rY a•WWMie IA14 11¢S m •R116 x TWOww M R1Yi;�..RE ,I/YW ...Om aWE }IIIW NOTES: BASED V RANT AVN AIaaJTY, TIE EEYELOSR RESERKS eS R T TO p Tww Tc .eOK WES RTIW TE BRE WAWLT UN RbOi MPROVK Met TC OTY er VITEN TE TEES "TD 1111 K BASED IPa. AV,AAw1TY N T( $rglG 6 Mt AT . TAE A R V. K 91gVTTEO. 0' 50' 100' 150' Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, bbd 55331 (952) 380-5000 ..,.>Y.Mf4,;kr.wIr,0 L I va, wti} NN•rA M0. wr ScxM ar,opart .0 P9..a a Te . ,r..., b¢I yeRstan And M 1. r Yl grerw E.O. uNa M M II N• State of Y W �9-- RejabAu R GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC Pryer} Na Digifd Ororip Np Oran e a -a a PAfi Dg/e s/nloe ReNsian ye" k ERY rwaa, CaTAll.b leeued For: Data Sdwr,&W Deeps ekrlher Re is �Iraw fle1 eW Con&waon Preliminary Buffer Yard Planting Plan Pape • A Preliminary Geotechnical Evaluation Report for Mr. John Przymus JOHN B PRZYMUS 12174176TH AVE VILLAW MY 56385-2203 Six Acres -West of Gal& Boulevard North of West 78th Street Chanhassen, Minnesota CITY OF CHANHASSEN RECEIVED MAR 1 7 2006 CHANHASSEN PLANNING DEPT Professional Certification I hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota 4 R o, PE Principal Engineer License Number. 18221 August 15, 2002 Project BABX-02-0452 Braun Intertec Corporation SCANNlo BRAUN INTERTEC August 15, 2002 Mr. John hzymus 12174 176th Avenue Villard, MN 56385 Dear Mr. Przymus: Bmun Intedoc CorporoiionI Phone: 952.941.5600 6801 Washington Avenue S Fax: 952.941.4151 Minneapolis, MN 55439 Web: braunintertec.mm Project BABX-02-0452 Re: Preliminary Geotechnical Evaluation, Przymus Property, Galpin Boulevard and West 78th Street, Chanhassen, Minnesota In accordance with our proposal (BABX-02-P0387) dated August 2, 2002, we have completed a preliminary geotechnical evaluation for the residential townhouse development in Chanhassen, Minnesota. The purpose of the evaluation was to assist in evaluating subsurface soil and groundwater conditions with regard to site grading and foundation support of a potential residential development at this site. Summary of Results Six soil borings were completed across the site. Soil conditions varied widely from the west (Borings ST -1 through ST4) to the east (Borings ST -5 and ST -6). West Half of Site. The west part of the site is lower, at about elevation 955 feet. Soil conditions in the west included about 11 to possibly 18 feet of peat, slopewash-deposited soils, muck and very soft clays. At depth, the soils transition into stiffer glacial till clays. East Half of Site. Ground elevations at the east side of the site are about 967. Soils at the east borings included about 6 feet of clayey or silty sand fill or possible fill underlain by medium to rather stiff glacial till soils. At the time of drilling, groundwater was observed in the four west borings at depths of 7 to 10 feet below existing grade. Groundwater levels may rise higher in time. Summary of Recommendations In our opinion, the topsoil, peat, slopewash, soft clays and fill soils are unsuitable for residential townhouse foundation and slab support due to their potential compressibility under fill and building loads. To prepare the site for townhouse support, we recommend removing the organic soils, peat, slopewash, soft clays and fill. The grading contractor will need to control groundwater seeping into the western excavations. The excavations should then be backfilled, where needed, with engineered fill to establish house grades. Using this approach, typical spread footing foundations sized to exert a maximum net allowable soil bearing pressure of up to 2,000 pounds per square foot should he used for house support. Providing engineering and environmental solutions since 1957 BRAUN INTERTEC A. Introduction Braun Interte: Corporation Phone: 952.941.5600 6801 Washington Avenue 5 Fax: 95 2,941.4151 Minneapolis, MN 55439 1 Web. brounintertec.conn A.I. Project The site of the proposed residential townhouse development is in Chanhassen, west of Galpin Boulevard and north of the newly -built West 78th Street which is the north service road for State Highway 5. Although a specific development plan has not been developed, a preliminary concept shows eight duplex buildings might be feasible. A.2. Purpose The purpose of this geotechnical evaluation was to assist Mr. John Przymus and his consultants in evaluating subsurface soil and groundwater conditions with regard to site grading and foundation support of the proposed residential development. A.3. Scope The borings were completed based on our proposal to Mr. John Przymus dated August 2, 2002 (Proposal BABX-02-P0387). Our scope of services was limited to: • coordinating the locating of underground utilities near the boring locations; • conducting a total of six penetration test borings to nominal depths of 20 feet; it returning the samples to our laboratory for visual classification and logging by a geotechnical engineer; conducting laboratory tests on selected samples to assist in the soil classification process; analyzing the field and laboratory tests; • formulating preliminary recommendations for earthwork, site grading and pavement subgrade preparation; and submitting a preliminary geotechnical evaluation report containing logs of the borings, our Providing engineering and environmental solutions since 1957 Mr. John Przymus Project BABX-02-0452 August 15, 2002 Page 2 analysis of the field and laboratory tests, and recommendations for foundation design, site grading, floor slab support and design of the paved areas. A.4. Documents Provided Schnell and Madson later provided us with a concept site plan which shows the existing topography and property lines and proposed building pad locations. The plan was prepared by David A. Kirscht Associates and dated January 14, 2002. A.5. Boring Locations and Elevations The borings were performed near the locations shown on the sketch in the appendix of this report. The locations were chosen by Braun Intertec. Surface elevations at the borings were determined by referencing to the top of manhole elevation shown on the plan near Boring ST -5. This manhole elevation is shown as 960.33 feet. The boring locations shown on the attached Soil Boring Location Sketch should be considered approximate. For more accuracy, we recommend a professional surveyor shoot the boring locations. B. Results B.1. Logs Log of Boring sheets indicating the depths and identifications of the various soil strata, penetration resistances, laboratory test data and groundwater observations are attached. The strata changes were inferred from the changes in the penetration test samples and auger cuttings. The depths shown as changes between the strata are only approximate. The changes are likely transitions and the depths of the changes vary between the borings. Geologic origins presented for each stratum on the Log of Boring sheets are based on the soil types, blows per foot, and available common knowledge of the depositional history of the site. Because of the complex glacial and post -glacial depositional environments, geologic origins can be difficult to ascertain. A detailed investigation of the geologic history of the site was not performed. B.2. Site Conditions The property is higher on its east half than its west half by about 14 feet. Elevations range from about 970 at the east part of the site to 951 in the wetlands and shore lines. Much of the site is lightly vegetated with grass and bushes. A border of large trees is present in the northeast area and a wetland occupies the northwest comer of the site. Mr. John Przymus Project BABX-02-0452 August 15, 2002 Page 3 B.3. Soils West Half of Site. Borings ST -1 through ST -4 were performed in approximately the west half of the site. At these borings, the generalized soil conditions include substantial depths of peat, slopewash, organic clay and soft clay over stiffer glacial till clays. Initially, the borings found 1 1/2 to 2 feet of peat or organic clay. The borings next found slopewash-deposited soils to depths of 4 to 7 feet. The slopewash consisted of wet clay or silty sand with organics. Two of the borings next found swamp -deposited organic clay to depths of 8 to 9 feet. Below the peat, slopewash and organic clay, the borings found glacial till to the termination depths of the borings at 20 1/2 feet. The upper layers of glacial till were typically very soft wet clay. The very soft to soft clays extended to depths of 11 to 18 feet. The glacial till clays then increased in consistency to a medium to rather stiff. East Half of Site. Borings ST -5 and ST -6 were performed in the east half of the site. These borings found about 6 feet of fill or possible fill consisting of lean clay, clayey sand and silty sand. Below the fill and possible fill, the borings found sandy lean clay glacial till with traces of gravel. The glacial till ranged from medium to rather stiff in consistency. B.4. Groundwater During the drilling operation, water was observed in Boring ST -1 at a depth of 18 feet. After the auger had been withdrawn from the boreholes, four of the boreholes were left open for one day. Water levels were observed in Borings ST -1 through ST4 at depths of 7 to 10 feet. Because of the low permeability of the clay soils, the water levels observed may not represent the actual water levels. A period of several days may be necessary for the water in the boreholes to stabilize at the groundwater level. It is likely the groundwater levels would rise higher over time. Groundwater levels should be expected to show annual and seasonal variations. B.5. Laboratory Testing Moisture content, organic content and dry density tests were performed on selected soil samples, and the results of the tests are shown on the attached Log of Boring sheets opposite the samples on which the tests were run. The laboratory tests were performed in accordance with American Society for Testing and Materials (ASTM) procedures. Mr. John Przymus Project BABX-02-0452 August 15, 2002 Page 4 C. Preliminary Analyses and Recommendations C.I. Proposed Construction At the time of this report, actual development plans for the site have not been finalized. However, preliminary plans were created with the City of Chanhassen's assistance and indicate the development will consist of constructing about eight twin townhomes with associated roadways and utilities. We assume the structures will have shallow or fun -depth basements with concrete or masonry block foundations walls, and wood -frame construction above grade. We assume the structures will be supported by typical spread footing foundations. About 4 1/2 of the westernmost building pads would be affected by the deep organic and soft clay soil conditions. C.2. Site Preparation C.2.a. Excavation. Based on the results of the borings, we judge the surficial topsoil, organic soils, slopewash, soft clays and fill to be potentially compressible and unsuitable for fin and foundation support. In our opinion, the underlying medium to rather stiff clayey soils appear suitable for fin and foundation support. In general, we recommend that an excavation/backfill approach be used for site development. A piled foundation system could also be considered for the western building pads. To accurately predict pile lengths, additional borings would need to be performed to depths of 60 to 80 feet. The excavation/backfin approach will involve excavating the vegetation, topsoil, peat, slopewash, fill and soft clays, and then placing engineered fill, where necessary, to establish building grades. Table 1 outlines the anticipated excavation depths needed at the boring locations to remove unsuitable soils. If roadways are constructed in a given boring location, it may be possible to decrease subout depths and leave some of the softer clays in place. This should be evaluated during the site grading. Table 1. Excavation Depths at Boring Locations Approximate Excavation Bottom Elevation feet Groundwater Elevation During Drilling Boring Number Approximate Surface Elevation feet Anticipated Excavation Depth (ftt) ST -I* 955.0 9 946 945 ST -2* 953.8 12 942 944 ST -3** 1 954.5 12 to 18 1 942 112 to 936 1/2 945 1/2 I&. John Przymus Project BABX-02-0452 August 15, 2002 Page 5 *It is important to note that at Borings ST -1, ST -2, ST -3 and ST -4, the subcut excavations will extend to or below the groundwater elevation. **At Borings ST -3 and ST -5 test pits should be performed to confirm subcut depths. The excavation depths indicated in the above table are approximate and could vary. The actual depths of excavation required may differ between boring locations and should be determined in the field at the time of the site grading. In areas requiring engineered fill to establish footing grades, the excavations must be oversized to provide lateral stability to the engineered fill. The bottoms of excavations should be oversized 1 foot beyond the outside edge of the footing for each foot of engineered fill placed below the bottom of the footing (1:1 oversizing). To minimize disturbing the medium clay soils, we recommend the deeper excavations be performed with a backhoe equipped with a smooth -edge bucket. If the excavation bottom soils become disturbed, they should be subcut and replaced with engineered fill. The bottoms of the excavations should be observed by a geotechnical engineer to evaluate the removal of unsuitable soils and the suitability of the natural soils left in place. This should be done prior to the placement of engineered fill and/or footings. Where excavations extend below groundwater elevations and/or, if appreciable groundwater accumulates in the excavation bottoms in the low-lying areas, it may be necessary to place a layer of clean sand in the excavation bottoms to achieve compaction. We recommend the sands contain less than 50 percent passing the number 40 sieve and less than 5 percent passing the number 200 sieve. Prior to placement of the sands, sump pins should be used to lower the water levels within the excavation. Approximate Anticipated Approximate Groundwater Boring Surface Excavation Excavation Elevation During Number Elevation Depth Bottom Elevation Drilling feet feet feet 954.2 15 939 947 ST -5* 967.9 1-6 967 to 962 NE IrST4* ST -6 967.4 6 9611/2 NE *It is important to note that at Borings ST -1, ST -2, ST -3 and ST -4, the subcut excavations will extend to or below the groundwater elevation. **At Borings ST -3 and ST -5 test pits should be performed to confirm subcut depths. The excavation depths indicated in the above table are approximate and could vary. The actual depths of excavation required may differ between boring locations and should be determined in the field at the time of the site grading. In areas requiring engineered fill to establish footing grades, the excavations must be oversized to provide lateral stability to the engineered fill. The bottoms of excavations should be oversized 1 foot beyond the outside edge of the footing for each foot of engineered fill placed below the bottom of the footing (1:1 oversizing). To minimize disturbing the medium clay soils, we recommend the deeper excavations be performed with a backhoe equipped with a smooth -edge bucket. If the excavation bottom soils become disturbed, they should be subcut and replaced with engineered fill. The bottoms of the excavations should be observed by a geotechnical engineer to evaluate the removal of unsuitable soils and the suitability of the natural soils left in place. This should be done prior to the placement of engineered fill and/or footings. Where excavations extend below groundwater elevations and/or, if appreciable groundwater accumulates in the excavation bottoms in the low-lying areas, it may be necessary to place a layer of clean sand in the excavation bottoms to achieve compaction. We recommend the sands contain less than 50 percent passing the number 40 sieve and less than 5 percent passing the number 200 sieve. Prior to placement of the sands, sump pins should be used to lower the water levels within the excavation. Mr. John Przymus Project BABX-02-0452 August 15, 2002 Page 6 It may be necessary to remove weak, compressible soils from below proposed slopes that are not located in house pad areas. Slopes constructed over compressible soils would cause the underlying soils to consolidate. This consolidation of the underlying soils may create an unstable slope, which would have a tendency to creep or fail. Care should be taken when filling over existing slopes that are steeper than 511:1 V (horizontal to vertical). We recommend benches be excavated into the natural soils of existing slopes that are steeper than SH: 1 V prior to fill placement. The "stair step" shaped benches are recommended to key the fill into existing slopes and reduce the risk of fill instability. Benches should be a minimum of 10 feet wide. Once the benches are cut, the near -surface soils should be bladed and compacted to disrupt any sand lenses which could weep moisture out onto the slope face. C.2.b. FM Placement. Based on the results of the borings and laboratory tests, the deeper elevation glacial till soils below the topsoil, peat, slopewash, soft clays and fill appear generally suitable for use as engineered fill; however, portions of the soils will be in a wet condition and will require aeration during placement to lower their moisture contents so that the specified.compaction requirements can be achieved. It is more likely that imported fill will be needed in the west portion of the property. We recommend the engineered fill placed for building support be compacted to at least 95 percent of its standard Proctor maximum dry density (ASTM D 698). We recommend the moisture contents of the engineered fill soils be within 3 percentage points of its optimum moisture content. Compaction tests should be taken to evaluate the contractor's method of fill placement. In the western building pads, it is likely that substantial depths of fill will be needed once soil condition subcuts are performed. If clays are used for fill depths in excess of 10 feet, some long-term consolidation of the fill could take place which could lead to structural distress to buildings. The amount of settlement could be reduced by limiting clay fill depths to 10 feet or less and importing sand for fill below the 10 -foot depth. If fill depths exceed 10 feet, the compaction specification should be increased to at least 98 percent of standard Proctor density and a construction delay may be needed to allow the fill to consolidate under its own weight. Deep fill situations will need to be reviewed on a case-by-case basis. In deep fill situations, it may be necessary to perform deeper subcuts (prior to fill placement) to reduce consolidation and settlement amounts. A construction delay may also be necessary after site grading is complete. Mr. John Przymus Project BABX-02-0452 August 15, 2002 Page 7 C.3. Foundation Design C.3.a. Bearing Pressure. Based on the soil boring results and performance of the above-described soil correction procedures, it is our opinion the engineered fill soils and remaining natural soils should be suitable for support of spread footings sized for an allowable soil bearing pressure of up to 2,000 pounds per square foot. We recommend that strip footings be at least 16 inches wide and that column pads be at least 2 1/2 by 2 1/2 feet. This loading should also provide a theoretical factor of safety of greater than 3 against localized shearing or base failure of the spread footings. C.3.b. Footing Depths. Perimeter footings in heated building areas should be founded a minimum of 42 inches below the nearest exterior grade for frost protection. Footings in unheated building or garage areas should be founded a minimum of 60 inches below the nearest exterior grade for frost protection. C.3.c. Settlements. It is our opinion that total and differential settlements based on these loadings should not exceed 1 inch and %z inch, respectively. Wood -framed single-family houses can generally tolerate this magnitude of settlement. C.4. Floor Slabs CA.a. Subgrade. After the building pad preparation has been completed, we anticipate the floor subgrade will be compacted fill. Backfill in footing and mechanical trenches should be compacted to a minimum of 95 percent of the standard Proctor maximum dry density. Lowest floor slabs should maintain adequate separation above normal groundwater levels which is commonly given as 4 feet. CA.b. Vapor Barrier. If floor coverings or coatings less permeable than the concrete slab will be used, or if moisture is a concern, we recommend a vapor retarder be placed beneath the slab. (Some coverings, coatings or situations may require a vapor barrier, i.e., a membrane with a permeance less than 0.3 perms.) Industry standards generally allow burying the vapor retarder or barrier beneath a layer of sand to reduce curling and shrinkage of the concrete, but this practice risks trapping water between the slab and vapor retarder or barrier. Mr. John Przymus Project BABX-02-0452 August 15, 2002 Page 8 C.5. Drainage Considerations and Lateral Wall Pressures Any basements wilt likely be surrounded by clayey and silty soils. If water enters the wall backfill soils, it may enter the basements through the concrete or masonry walls. Collecting runoff and discharging it well away from the foundations and sloping the ground surface down and away from the foundation walls are two common methods of reducing infiltration and percolation. Slope erosion control measures should address diversion of runoff from the steeper slopes. As an added precaution against basement seepage, we recommend installing perimeter foundation drainage systems. This system should include a perforated pipe with an invert within 2 inches of bottom -of -footing elevation. Collected seepage should be routed to a sump and then drained by a pump or gravity to a storm sewer or low area on the site. The seepage control system should include permeable material against the basement walls such as a geocomposite wall drainage board or at least 3 feet (horizontal) or permeable gravel or clean sand backfill. The gravel or clean sand backfill should have less than 5 percent of the particles by weight passing the number 200 sieve. The gravel or clean sand should be capped by a slab, pavement or at least 1 foot of clay topsoil or clay sloped away from the structure. Below -grade walls should be designed to resist the appropriate lateral earth forces. Where the on-site clayey and silty soils are used for wall backfill, we recommend an equivalent fluid pressure equal to 70 pounds per square foot be used for design. C.6. Construction Considerations We recommend the basement floor grades be established to maintain at least a 4 -foot separation between the basement floor grades and normal groundwater and at least a 2 -foot separation between the basement floor grades and the 100 -year flood levels of adjacent retention ponds or wetlands. We recommend that Braun Intertec review the grading plan to evaluate if any fill lots will require a construction delay prior to building construction to allow for consolidation of thick (typically 10 feet or greater) fills. C.7. Pavement Areas C.7.a. Grading. We recommend the vegetation, topsoil, peat, slopewash, organic clay and very soft clays be excavated from the pavement areas. At four borings, a layer of soft clay was encountered below the surficial topsoil, peat slopewash or muck This layer will consolidate if additional fill is placed over existing grade. If roadway construction will occur soon after filling, this layer should be Mr. John Przymus Project BABX-02-0452 August 15, 2002 Page 9 removed. If a substantial period of time will pass (four to six months) prior to paving, some of the soft clays could beleft in place and allowed to consolidate. A decision regarding leaving soft clays in roadways should be made in the field and should also consider utility trench backfill problems. In areas requiring engineered fill to establish pavement grades, the excavation should be oversized at least 1 foot beyond the outside edge of the toe of the roadway embankment for each foot of fill placed below the bottom of the toe of the roadway embankment. C.7.b. Engineered Fill. The engineered fill placed in paved areas should be compacted to at least 95 percent of standard Proctor density to within 3 feet of subgrade and 100 percent within the upper 3 feet. We recommend the moisture contents of the engineered fill soils be within 3 percentage points of the optimum moisture content to within 3 feet of subgrade and not more than 1 percentage point over the soils' optimum moisture content in the upper 3 feet. C.7.c. Proofroll. Prior to placement of the aggregate base, we recommend the pavement subgrade be proofrolled with a loaded tandem truck to detect unstable areas. Any unstable areas should be subcut and replaced with a drier, compactible soil or dried and recompacted. C.7.d. Pavement Design. Based on the borings, it appears the subgrade soils will consist mainly of lean clay. For pavement design, we recommend an assumed Hveem stabilometer R -value of 10 be used. Some cities require the pavements to be constructed with a sand subbase. Construction with a sand subbase will often provide a more stable pavement subgrade and reduce the required pavement section. Drain file should be placed in the sand subbase to drain low-lying areas where water could potentially pond. C.8. Utilities We recommend that utility trenches not be located within the zone of influence of future structure footings. This is generally considered as the zone within a 1:1 (horizontal to vertical) area below footings. The medium to rather stiff glacial till soils below the topsoil peat, slopewash, organic clay and soft clays at the anticipated pipe invert levels appear generally suitable for pipe support. Groundwater was encountered in a number of borings. Dewatering in some areas should be anticipated for the utility installations. The placement of additional aggregate to provide a stable pipe bedding subgrade should also be anticipated. Mr. John Przymus Project BABX-02-0452 August 15, 2002 Page 10 We recommend that the utility trench backfill be compacted to the specifications previously outlined in Section C.7., Pavement Areas. C.9. Additional Evaluation and Testing During Construction We recommend backhoe test pits be performed prior to the site grading to further evaluate the soil and groundwater conditions. Grading of some areas of the site can be difficult in areas of high moisture content clay soils. We recommend a geotechnical engineer or his representative is on site during the site grading. At that time, the suitability of the subsurface soils for support of fill and foundation loads can be further evaluated. Excavation depths and provided oversizing can also be documented. Compaction tests should be taken during the site grading operation, utility backfilling within the roadway areas, utility backfilling near house pad areas and house foundation wall backfill operations. In general, compaction tests should be taken after about 2 feet of fill has been placed in the excavations and then at about 2 -foot vertical intervals thereafter. D. Procedures D.I. Drilling and Sampling The penetration test borings were performed on August 5 and 6, 2002, with a core and auger drill equipped with 3 1/4 -inch inside diameter hollow -stem auger mounted on a truck -mounted carver. Sampling for the borings was conducted in general accordance with ASTM D 1586, "Penetration Test and Split -Barrel Sampling of Soils." Using this method, the borehole was advanced with the hollow -stem auger to the desired test depth. A 140 -pound hammer falling 30 inches was then used to drive the standard 2 -inch split -barrel sampler a total penetration of 1 Meet below the tip of the hollow -stem auger. The blows for the last foot of penetration were recorded and are an index of soil strength characteristics. Samples were taken at 2 %Moot vertical intervals to the 15 -foot depth and then at 5 -foot intervals to the termination depths of the borings. A representative portion of each sample was then sealed in a glass jar. D.2. Soil Classification Soils encountered in the borings were visually and manually classified in the field by the crew chief in general accordance with ASTM D 2488, "Description and Identification of Soils (Visual -Manual Procedures)" A summary of the ASTM classification system is attached. All samples were then returned to our laboratory for review of the field classifications by a geotechnical engineer. Mr. John Przymus Project BABX-02-0452 August 15, 2002 Page I1 Representative samples will remain in our Minneapolis office for a period of 30 days to be available for your examination. D.3. Groundwater Observations Immediately after taking the final samples in the bottoms of the borings, the holes were probed through the hollow -stem auger to check for the presence of groundwater. Immediately after withdrawal of the auger, the holes were again probed and the depths to water or cave-ins were noted. Four of the boreholes were left open overnight to recheck water levels. The borings were then immediately backfilled. E. General Recommendations R.I. Basis of Preliminary Recommendations The preliminary analyses and recommendations submitted in this report are based upon the data obtained from the soil borings performed at the locations indicated on the attached sketch. Often, variations occur between these borings, the nature and extent of which do not become evident until additional exploration or construction is conducted. A re-evaluation of the recommendations in this report and possibly additional soil borings should be made after a more complete design is available. The variations may result in additional grading costs, and it is suggested that a contingency be provided for this purpose. It is recommended that we be retained to perform the observation and testing program for the site preparation phase of this project. This will allow correlation of the soil conditions encountered during construction to the soil borings, and will provide continuity of professional responsibility. E.2. Review of Design This report is based on the preliminary design of the proposed development as related to us for preparation of this report. It is recommended that we be retained to review the geotechnical aspects of the designs and specifications. With the review, we will evaluate whether any changes in design have affected the validity of the recommendations, and whether our recommendations have been correctly interpreted and implemented in the design and specifications. E.3. Groundwater Fluctuations We made water level observations in the borings at the times and under the conditions stated on the boring logs. These data were interpreted in the text of this report. The period of observation was relatively short, and fluctuation in the groundwater level may occur due to rainfall, flooding, Mr. John Przymus Project BABX-02-0452 August 15, 2002 Page 12 irrigation, spring thaw, drainage, and other seasonal and annual factors not evident at the time the observations were made. Design drawings and specifications and construction planning should recognize the possibility of fluctuations. EA. Use of Report This preliminary report is for the exclusive use of Mr. John Przymus and his design team to use to design the proposed development and prepare construction documents. In the absence of our written approval, we make no representation and assume no responsibility to other parties regarding this report. The data, analyses and recommendations may not be appropriate for other structures or purposes. We recommend that parties contemplating other structures or purposes contact us. E.5. Level of Care Services performed by Braun Intertec Corporation personnel for this project have been conducted with that level of care and skill ordinarily exercised by members of the profession currently Practicing in this area under similar budget and time restraints. No warranty, expressed or implied, is made. Appendix s =LU V aCie LLI mZ b � 9':�R ItiF �llm 1 s FIG'IIRE HA m BRAUN`" I NTE BTEC LOG OF BORING Braun Project BA -BX -02-0452 BORING: ST -I GEOTECHNICAL EVALUATION LOCATION: See attached sketch. John Przymus Property Galpin Boulevard and Rest 78th Street Chanhassen, Minnesota DRILLER: D. Lovassen METHOD: 3 1/4" HSA Autohammer DATE: 8/6/02 SCALE: 111=4' Elev.Depth feet feet ASTM Description of Materials BPF WL Tests or Notes 955.0 0.0 Symbol (ASTM D2488 or D2487) PT _ PEAT, black, wet. Elevations at soil boring (Swamp Deposit) locations referenced to top of manhole north of Boring ST -5. 953.0 2.0 —'' WH Plans indicate top of manhole = 960.33. CL SANDY LEAN CLAY, brown and gray, wet, very soft. (Slopewash) 1 3 947.0 8.0 CL SANDY LEAN CLAY, with a trace of Gravel, gray and brown, wet, soft to medium. (Glacial Till) An open triangle in the water 5 1 level (WL) column indicates the depth at which groundwater was observed while drilling. A solid triangle indicates the 8 stable groundwater level in the boring on the date indicated. Groundwater levels fluctuate. 941.0 14.0 CL SANDY LEAN CLAY, with a trace of Gravel, gray, wet, medium to rather stiff. 7 (Glacial Till) Q 9 934.5 20.5 END OF BORING. Water down 18 feet with 19 feet of hollow -stem auger in the ground. Water down 10 feet 10 minutes after withdrawal of the auger. Boring then backfilled .A A- Dz br i mnircc Lorwmuon B RAu N`° INTERTEC LOG OF BORING Braun Project BABX-02-0452 BORING: ST -2 GEOTECHNICAL EVALUATION John Przymus Property LOCATION: See attached sketch. Galpin Boulevard and West 78th Street Chanhassen, Minnesota DRILLER: D. Lovassen METHOD: 3 1/4" HSA Autohammer DATE: 8/6/02 SCALE: 111=4' Elev. Depth feet feet ASTM Description of Materials BPF WL MC DD Tests or Notes 953.8 0.0 Symbol (ASTM D2488 or D2487) % pcf PT = PEAT, black, wet. 952.3 1.5 (Topsoil) CL LEAN CLAY, with wood, light gray and brown, wet, very soft. WH (Slopewash) I i 946.8 7.0 3 22 104 CL SANDY LEAN CLAY, with a trace of Gravel, gray, wet, soft to rather stiff. (Glacial Till) 3 1 22 104 11 12 A 10 933.3 20.5 END OF BORING. Water not observed with 19 feet of hollow -stem auger in the ground. Water down 10 feet 10 minutes after withdrawal of the auger. Boring then backfilled. MAnX-01-0452 Braun In=w Corporation ST -2 page 1 of 1 B RAU N`° INTERTEC LOG OF BORING Braun Project BABX-02-0452 BORING: ST -3 GEOTECHNICAL EVALUATION LOCATION: See attached sketch. John Przymus Property Galpin Boulevard and West 78th Street Chanhassen, Minnesota DRILLER: D. Lovassen METHOD: 3 1/4" HSA Autohammer DATE: 8/5/02 SCALE: 1" = 4' Elev. Depth feet feet ASTM Description of Materials BPF WL Tests or Notes 954.5 0.0 Symbol (ASTM D2488 or D2487) PT = PEAT, black, wet. (Swamp Deposit) 953.0 1.5 SM .' SILTY SAND, with organics, dark brown, wet, very soft. (Slopewash) 1 950.5 1 4.0 OL —_ ORGANIC CLAY, with wood, light gray, wet. (Swamp Deposit) WH 1 945.5 9.0 1 CL SANDY LEAN CLAY, with a trace of Gravel, gray and some brown, wet, soft to medium. 3 (Glacial Till) 4 4 8 934.0 20.5 END OF BORING. Water not observed with 19 feet of hollow -stem auger in the ground. Borehole left open 1 day. Water down 9 feet 1 day after withdrawal of the auger. Boring then backfilled. 6A X- 2 52 Braun nnHrS l orpomuon BRAUN`" INTERTEC LOG OF BORING Braun Project BABX-02-0452 BORING: ST -4 GEOTECHNICAL EVALUATION John Przymus Property LOCATION: See attached sketch. Galpin Boulevard and West 78th Street Chanhassen, Minnesota DRILLER: D. Lovassen METHOD: 3 1/4" HSA Autohammer DATE: 8/5/02 SCALE: 1" = 4' Elev. Depth feet feet ASTM Description of Materials BPF WL MC DD Tests or Notes 954.2 0.0 Symbol (ASTM D2488 or D2487) % pcf CL LEAN CLAY, black, wet. 953.2 1.0 (Topsoil) SM i SILTY SAND, with organics, black, wet, soft. (Slopewash) 3 950.2 4.0 OH ORGANIC SILT, gray, wet, very soft. (Swamp Deposit) WH i 1 I 946.2 8.0 CL LEAN CLAY, gray, wet, very soft. (Alluvium) 1 15 I 939.7 14.5 5 22 103 OC = 2% CL LEAN CLAY, with a trace of Gravel, gray and brown, wet, rather soft to medium. (Glacial Till) 7 22 103 OC = 2% 933.7 20.5 END OF BORING. Water not observed with 19 feet of hollow -stem auger in the ground. Water down 7 feet 10 minutes after withdrawal of the auger. Borehole left open. -02 52 Bmm lnrertec Corpo=on ST -4 page 1 of 1 BRA JW INTERTEC LOG OF BORING Braun Project BA.BX-02-0452 BORING: ST -5 GEOTECHNICAL EVALUATION John Przymus Property LOCATION: See attached sketch. Galpin Boulevard and West 78th Street Chanhassen, Minnesota DRILLER: D. Lovassen METHOD: 31/4" HSA Autohammer DATE: 8/5/02 SCALE: 1" = 4' Elev. Depth feet feet ASTM Description of Materials BPF WL Tests or Notes 967.9 0.0 Symbol (ASTM D2488 or D2487) 967.4 0.5 CL LEAN CLAY, with Roots, black, wet. (Topsoil) CL SANDY LEAN CLAY, brown, wet. (Possible Fill) 5 6 961.9 6.0 CL SANDY LEAN CLAY, dark gray, wet, rather stiff. (Glacial Till) 9 958.9 9.0 SM .`- SILTY SAND, brown, wet, medium dense. (Glacial Till) 12 956.9 11.0 CL SANDY LEAN CLAY, with some Gravel, mottled brown, gray and red, wet, medium to rather stiff. (Glacial Till) 7 10 949.9 18.0 CL SANDY LEAN CLAY, gray, wet, rather stiff. (Glacial Till) 12 947.4 20.5 END OF BORING. Water not observed with 19 feet of hollow -stem auger in the ground. Borehole left open 1 day. Water not observed to cave-in depth of 16 1/2 feet I day after withdrawal of auger. Boring then backfilled. BABX-02-0452 Braun lnrertec Corporation ST -5 page 1 of 1 BRAUN`° INTERTEC LOG OF BORING Braun Project BA -BX -02-0452 BORING: ST -6 GEOTECBMCAL EVALUATION John Przymus Property LOCATION: See attached sketch. Galpin Boulevard and West 78th Street Chanhassen, Minnesota DRILLER: D. Lovassea METHOD: 3 1/4" HSA Autohammer DATE: 8/5/02 SCALE: 1" = 4' Elev. Depth feet feet ASTM Description of Materials BPF WL Tests or Notes 967.4 0.0 Symbol (ASTM D2488 or D2487) FILL FILL: Clayey Sand and Silty Sand, brown, wet. 9 6 961.4 6.0 CL SANDY LEAN CLAY, with Clayey Sand, mottled brown, red and gray, wet, medium to rather stiff. (Glacial Till) 6 8 9 12 949.4 18.0 CL SANDY LEAN CLAY, with a trace of Gravel, gray, wet, rather stiff. (Glacial Till) 11 946.9 20.5 END OF BORING. Water not observed with 19 feet of hollow -stem auger in the ground. Borehole left open I day. Water not observed to cave-in depth of 16 feet 1 day after withdrawal of auger. Boring then backfilled. Bm lnwrtec corpmanon b I b page I or I CITY OF CHANHASSEN RECEIVED MAR 1 7 2006 CHANHASSEN PLANNING DEPT Wetland Delineation, Classification and Identification Northwest Quadrant of Galpin Blvd. & Highway 5 Chanhassen, Minnesota Prepared for John Przymus June 27, 2003 SMI Project 63713-002 Schoell & Madson, Inc. Engineering • Surveying • Planning Soil Testing • Environmental Services www.schoelImadson.com June 27, 2003 Mr. John Przymus 7900 Great Plains Boulevard Chanhassen, MN 55317 Subject: Wetland Delineation Galpin Boulevard Dear Mr. Przymus: Please find enclosed a copy of the wetland delineation report, prepared for the former miniature golf facility along Highyway 5 and Galpin Boulevard in Chanhassen, Minnesota. We have identified three wetland basins on the property. As we discussed earlier, if any of the wetlands were created as a result of the construction of 78`b Street, an application of exemption may be made. I have discussed this possibility with Lori Haak from the City of Chanhassen and she is looking into some historical aerial photography for the property. Please feel free to contact me at (952) 847-9637 with any questions you may have regarding this report. Thank you for the opportunity to conduct this work on your behalf. Very truly yours, SCHOELL & MADSON, INC. 4 #V� Meg Teff Director of Natural Resources Enc. Affirmative Action Equal Opportunity Employer 10580 Wayzata Boulevard, Suite 1 • Minneapolis, MN 55305-1525 Office (952) 546-7601 • Fax [952) 546-9065 Project 63713-002 Wetland Delineation June 2003 Wetland Classification, Identification and Delineation for John Przymus Summary Based upon the boundaries indicated on the site map provided to Schoell and Madson, Inc., we have identified three wetland basins. The wetlands were field identified on June 13, 2003. Total recorded rainfall at the Chanhassen Weather Station for the week preceding the delineation was 1.93 inches. Cumulative recorded rainfall for the month of June through the 13th was 0.77 inches. Cumulative recorded rainfall for the month of May was 4.91 inches, 1.52 inches above normal. Review of U.S. Fish and Wildlife National Wetland Inventory maps indicate one PEMC wetland exists on this property. Project Location and Site Description The site is approximately 18 acres in size and is located along Galpin Boulevard near the intersection of State Highway 5 in Chanhassen, Minnesota. The site was formerly a miniature golf course and driving range. Characteristics of Wetland Basin Wetlands were delineated according to the 1987 Corps of Engineers Wetlands Delineation Manuel. Basin 1 Wetland 1 consists of a Type 2, Inland fresh meadow as defined in Wetlands of the United States (USFWS Circular 39; Shaw and Fredine 1971). Basin 1 is classified as a PEMB (Palustrine Emergent Saturated) wetland based on the Wetlands and Deepwater Habitats of the United States (FWS Publication 79/31; Cowardin et al). Vegetation Observed vegetation along the wetland boundary consists of reed canary grass Phalaris arundinacea, a facultative wetland (+) plant; and curly dock Rumex crispus, a facultative (+) plant. Vegetation inside the wetland boundary consists of reed canary grass and narrow leaf cattail Typha angustifolia, an obligate wetland plant. Upland vegetation consists of bluegrass Poa sp.; reed canary grass; and common plantain Plantago major, a facultative (+) plant. Soils Project 63713-002 Wetland Delineation June 2003 The USDA Soil Survey of Hennepin County classifies the soils on the property as Lester Loam. Boundary soils were field identified as black (10YR 2/1) loam to a depth of 15 inches. The upland soils were disturbed in the upper 10 inches. Below 10 inches, the Ab -horizon was identified as black (10YR 2/1) loam. Wetland soils were disturbed in the upper 10 inches. The predominate matrix color was identified as black (10YR 2/1) with 5/5G gley. Yellowish brown (10YR 5/6) mottles were also present in the wetland profile. Hydrology In the boundary pit, saturated soils were identified at a depth of 2 inches below the surface. Free water was encountered at 15 inches. Saturated soils were encountered at a depth of 14 inches in the upland pit. Free water was present at 15 inches below the surface. In the wetland pit, saturated soils were present at a depth of 2 inches. Free water was encountered at 15 inches below the surface. Basin 2 Wetland 2 consists of a Type 2, Inland fresh meadow as defined in Wetlands of the United States (USFWS Circular 39; Shaw and Fredine 1971). Basin 2 is classified as a PEMB (Palustrine Emergent Saturated) wetland based on the Wetlands and Deepwater Habitats of the United States (FWS Publication 79/31; Cowardin et al). Vegetation Observed vegetation along the wetland boundary consists of reed canary grass, bluegrass, and sow thistle Sonchus o/eraceus, a facultative upland plant. Vegetation inside the wetland boundary consists of reed canary grass and smartweed Polygonum sp.. Upland vegetation consists of dandelion Taraxacum officinale, a facultative upland plant; and mowed field. Soils Project 63713-002 Wetland Delineation June 2003 The USDA Soil Survey of Hennepin County classifies the soils on the property as Lester Loam. Boundary soils were disturbed in the upper 4 inches of the profile. Below 4 inches, the Ab -horizon was identified as black (10YR 2/1) peat to a depth of 20 inches. The upland soils were identified as black (10YR 2/1) peat to a depth of 25 inches. Wetland soils were disturbed in the upper 7 inches. Below 7 inches, soil was identified as black (10YR 2/1) peat to a depth of 24 inches. Hydrology In the boundary pit, saturated soils were identified at a depth of 12 inches below the surface. Free water was encountered at 18 inches. Saturated soils were not encountered in the upland pit. In the wetland pit, saturated soils were present at a depth of 10 inches. Depth to free water is greater than 24 inches. Basin 3 Wetland 3 consists of a Type 2, Inland fresh meadow as defined in Wetlands of the United States (USFWS Circular 39; Shaw and Fredine 1971). Basin 3 is classified as a PEMBd (Palustrine Emergent Saturated ditched) wetland based on the Wetlands and Deepwater Habitats of the United States (FWS Publication 79/31; Cowardin et al). Vegetation Observed vegetation along the wetland boundary consists of reed canary grass, smartweed, trembling aspen Populus tremula, a facultative plant; and box elder Acer negundo, a facultative wetland (-) plant. Upland vegetation consists of giant foxtail Setaria faberi, a facultative plant; golden -rod Solidago sp.; Aster sp.; mallow Napaea dioica, a facultative wetland (-) plant; and thistle Circium sp.. Soils Project 63713-002 Wetland Delineation June 2003 The USDA Soil Survey of Hennepin County classifies the soils on the property as Peat and Muck. Boundary soils were field identified as black (10YR 2/1) peat to a depth of 25 inches. Marl was present in the bottom half of the pit. The upland soils were identified as black (10YR 2/1) peat to a depth of 20 inches. Marl was present in bottom half of the pit. Wetland soils were identified as black (10YR 2/1) peat to a depth of 30 inches. Marl was present throughout the profile. Hydrology Though saturated soils were not encountered in the boundary or wetland pits, hydrology for the basin is assumed based upon the predominance of hydrophytes and hydric soils. Wetland Conservation Act The site lies within the Riley Purgatory Bluff Creek Watershed District (RPBCWD) boundaries. According to the Wetland Conservation Act of 1996, wetlands on this site come under the jurisdiction of the Board of Water and Soil Resources. The responsibility for administering the provisions of this legislation is up to the local unit of government (LGU). In this case, the City of Chanhassen will oversee as the LGU. The project must be certified by the LGU as having complied with the provisions of the Act. Any wetland impacts must be replaced or restored at a minimum ratio of 2 acres of replacement for every 1 acre impacted. These mitigation activities must occur within the same watershed as the impact occurs. The act also mandates that restoration or creation of replacement wetlands only be considered after an applicant has demonstrated that the impacts cannot be avoided, further minimized, corrected, or eliminated over time. This requirement is essentially the same as the U.S. Army Corps of Engineers permit process. During the final design process, effort should be taken whenever possible to avoid and minimize wetland impacts. By utilizing this approach, wetland replacement costs will be kept to a minimum and any additional permitting will be more easily facilitated. In addition, this strategy should result in a greater level of project acceptance. �' �; ,, �.� ,, s� 4 ro 3 4 '.`�� f.. �. _. „,,. �..3 _: �: S - l.: s Wetland Basin 3 1 PARCEL A ._ _ - r 7 PARCEL B TRUNK HIGHWAY No. 5 pig MC �,, PfMAI PEMC Pic 'q.` t_,1 . i q.5.. { Lke.A PQM i Moa 4 - _ ,k PFii PFO b F t� i%-OIC Pl1BG C n� J F S'yQ� M gyp,". 9 Sde Location Psalc REMU 'PU8 'OK \1 PFOIC u PEMC� Si5 I r P€MAd `/ POMC'/�, +a I ry� ✓ f a 1cn w� PEMCb PFfi+l d ,/ !PEMN FFOfe P M I 1 1i7 PEMA FFDIA7 r� ' P6GIc"' h 6bAZ, P�MCd .P=bC , PEMG 1' r EMU � rz�JL�f, 1. sl PEMC €M•_ .. U N, J cEMf EM ,!P 1'F � L� ��.u O Et. :pEMR F 4 P -\ �p� PEN�pB r i s G' P[�t.� LIP- lkw l r y F POMC I v li' f _` PetNA hrPE! ^'qa :. _ Ft.y� 3 V�PifOl a ll PEM,- Em E'M <+ •' " tr'. r x "' PEMA ��CW1Cd '�Ju PEMOd{ ,yp�t-� � C ZUE r1 P�`,: �LY d Vim'. .• .ih �I eeMns ; TEMPEMF , Schoell & Madson, Inc. National Wetland Inventory Map FIGURE 2 10580 Wayzata Blvd., Suite 1 Chanhassen, Minnesota Project No. 63713-002 Minneapolis, MN 55305-1525 Section 16, T.116, R.23 Carver County, Minnesota Schoell & Madson, Inc. DNR Protected Waters Map FIGURE 3 10580 Wayzata Blvd., Suite 1 Chanhassen, Minnesota Project No. 63713-002 Minneapolis, MN 55305-1525 Section 16, T.116, R.23 Carver County, Minnesota Schoell & Madson, Inc. Engineers Surveyors Planners Soil Testing Environmental Services 10580 Wayzata Blvd. Suite 1, Minnetonka, Mn 55305 (952) 546-7601 Wetland Data Form Wetland Basin No. 1 Stake. 3 Routine Onsite Determination Method 1 Date: 6/13/03 Field Investigator(s): Meg Jeffery & Patrick Donahue Project Number: 63713-002 Applicant/Owner: John Przymus Project Site: Chanhassen Minnesota County: Carver Plant Community / Name: Do normal environmental conditions exist at the plant community? Yes Has the vegetation, soils, and/or hydrology been significantly disturbed? Yes soils Rnu n.i�... Von n.atinn Dominant Plant Species % Status Stratum Dominant Plant Species % Status Stratum Rumex cris us 10 FAC+ Forb Phalaris arundinacea 80 FACW+ Forb r r..r�..a ve..e.�s.... Dominant Plant Species % Status Stratum Dominant Plant Species _- % Status Stratum Plantago major 10 FAC+ Forb Poa s . 60 Forb Pha/aris arundinacea 20 FACW+Forb Dominant Plant Species % Status Stratum Dominant Plant Spec as r % Status Stratum Phalaris arundinacea 70 FACW+ Forb Typha an ustifolia 10 OBL Forb L Percent of dominant species that are OBL, FACW, and/or FAC > 50% Is the hydrophytic vegetation criteria met? Yes Boundary soils Depth (in inches)/Horizon Matrix Color Gle in Mottle Color 0-15"+IA 10YR2/1 I On Hydric soils list Histic Epipedon Reducing conditions _ Organic streaking Histosol Sulfidic odor High organic content _ Concretions Depth in inches /Horizon Matrix Color Gleying I Mottle Colors Texture/Structure 0 —10" /Disturbed 10"+1 A buried 10YR 211 Loam De th in inches /Horizon Matrix Color Gle in Mottle Colors Texture/Structure 0-15"1 Disturbed 10YR 211 5/513 ` 10YR 5/6 Loam On Hydric soils list HIStc Epipedon neauany wnwuuiis Uiydruc buednuiy Histosol x Sulfidic odor High organic content Concretions Schoell & Madson, Inc. Engineers Surveyors Planners Soil Testing Environmental Services 10580 Wayzata Blvd. Suite 1, Minnetonka, Mn 55305 (952) 546-7601 Wetland Data Form Wetland Basin No. 2 Stake: Routine Onsite Determination Method 1 Date: 6/13/03 Field Investigator(s): Meg Jeffery & Patrick Donahue Project Number: 63713-002 Applicant/Owner: John Przymus Project Site: Chanhassen Minnesota County: Carver Plant Community / Name: Do normal environmental conditions exist at the plant community? Yes Has the vegetation, soils, and/or hydrology been significantly disturbed? No Boundary Vegetation Dominant Plant Species % Status Stratum Dominant Plant Species % I Status Stratum Phalans arundinacea 70 FACW+ Forb Poa s . 10 I Forb Sonchus oleraceus 10 FACU Forb Upland Vegetation Dominant PlantSpecies % Status Stratum I Dominant Plant Species % Status Stratum Tarexacum officinale 5 FACU Forb Mowed field Wetland Vegetation Dominant Plant Species % Status Stratum Dominant Plant Species % Status Stratum Pha/aris arundinacea 80 FACW+ Forb Poly2onum so. 10 I Percent of dominant species that are OBL, FACW, and/or FAC > 50% Is the hydrophytic vegetation criteria met? Yes Boundary soils Depth in inches /Horizon Matrix Color Gle in .- Mottle Colors Texture/Stricture 4-20"/ Oe buried 10YR 2/1 Peat'' I I On Hydric soils list Histosol Upland soils Histic Epipedon _ Reducing conditions _ Organic streaking Sulfidic odor High organic content Concretions Depth in inches /Horizon Matrix Color Gleying Mottle Colors Texture/Structure 5-25 "/ Oe buried 10YR 2/1 Peat I I Wetland soils Depth in inches /Horizon Matrix Color eying ottle Colors Texture/Structure 7-24"/ disturbed 10YR 2/1 Peat I _ On Hydric soils list _ Histic Epipedon _ Reducing conditions Organic streaking Histosol Sulfidic odor _ High organic content Concretions Schoell & Madson, Inc. Engineers Surveyors Planners Soil Testing Environmental Services 10580 Wayzata Blvd. Suite 1, Minnetonka, Mn 55305 (952) 546-7601 Wetland Basin 1 Hydrology Boundary Is the ground surface inundated? No Surface water depth: Is the soil saturated? Yes Depth to Saturation: 12" below the surface Depth to free standing water in pit or soil probe hole 18" below the surface List other field evidence of surface inundation or soil saturation Primary indicators Secondary indicators _ Inundation Oxidized root channels x Saturated in upper 12 inches Water stained leaves _ Water marks Local soil survey data _ Sediment deposits FAC -Neutral test definite vegetation transition at boundary Drainage patterns in wetlands Is the wetland hydrology criterion met? Rationale: Hydrology Upland Is the ground surface inundated? No Surface water depth: Is the soil saturated? Yes Depth to Saturation: 25" below the surface Depth to free standing water in pit or soil probe hole 25" below the surface List other field evidence of surface inundation or soil saturation Primary indicators Secondary indicators _ Inundation Oxidized root channels _ Saturated in upper 12 inches Water stained leaves _ Water marks Local soil survey data _ Sediment deposits FAC -Neutral test definite vegetation transition at boundary Drainage patterns in wetlands Is the wetland hydrology criterion met? Rationale: Hydrology Wetland Is the ground surface inundated? No Surface water depth: Is the soil saturated? Yes Depth to Saturation: 10" Depth to free standing water in pit or soil probe hole > 24" List other field evidence of surface inundation or soil saturation Primary indicators Secondary indicators Inundation Oxidized root channels x Saturated in upper 12 inches Water stained leaves _ Water marks Local soil survey data _ Sediment deposits FAC -Neutral test definite vegetation transition at boundary Drainage patterns in wetlands Is the wetland hydrology criterion met? Rationale: Jurisdictional Determination and Rationale Is Hydrophytic vegetation present? Yes Is Wetland hydrology present? Yes Are Wetland soils present? Yes Is the plant community a wetland? Yes Rationale for jurisdictional decision All criteria met Schoell & Madson, Inc. Engineers Surveyors Planners Soil Testing Environmental Services 10580 Wayzata Blvd. Suite 1, Minnetonka, Mn 55305 (952) 546-7601 %A), #I.. A n....:., kf, a 0a -b... Field Investigator(s): Meg Jeffery & Patrick Donahue Project Number: 63713-002 Applicant/Owner: John Przymus Project Site: Chanhassen Minnesota Plant Community / Name: Do normal environmental conditions exist at the plant community? Yes Has the vegetation, soils, and/or hydrology been significantly disturbed? No Boundary Vegetation County: Carver Dominant Plant Species % "Status r Stratum Dominant Plant Species % Status Stratum Phalaris arundinacea 30 FACW+ Forb 10 Polygonum s . 30 Na aea dioica Forb FACW- Acer ne undo 5 FACW- '_ Forb Forb Po ulus tremu/a 5 FAG ' Forb Upland Veaetation Dominant Plant Species % "Stafus"',r Stratum Dominant Plant Species % Status Stratum Solida o altissima 30 FACIL' " Forb GIANT FOXTA/L 30 Asters . 10 Forb Na aea dioica 5 FACW- Forb Circium s . 10 Forb Wetland Veaetation Dominant Plant S ecies % Status '- Stratum Dominant Plant Species % Status Stratum Drowned out 0.20"/ Oe 10YR 211 Peat/Marl Percent of dominant species that are OBL, FACW, and/or FAC > 50% Is the hydrophytic vegetation criteria met? Yes Boundary soils Depth in inches /Horizon Matrix Color Gle in : Mottle Colors Texture/Structure 0-25"/Oe 10YR 211 Peat/ Marl n _ On Hydric soils list Histic Epipedon Histosol Sulfidic odor LIVIFUN.RR.7IR9 Reducing conditions _ Organic streaking High organic content Concretions Depth in inches /Horizon Matrix Color -Gle in '- Mottle Colors Texture/Structure 0.20"/ Oe 10YR 211 Peat/Marl Wetland soils Depth in -inches /Horizon Matrix Color Gle int Mottle Colors Texture/Structure 0-30"/ Oe 10YR 2/1 Peat/Marl _ On Hydric soils list Histic Epipedon Reducing conditions Organic streaking Histosol x Sulfidic odor High organic content Concretions Preliminary Stormwater Management Summary for Galpin Crossing Twinhomes CITYOF RECEIVEDSSEN Chanhassen, MN MAR 3 0 2006 Revised 3/22/2006 CHANHASSEN PLANNING DEPT Existing Drainage Conditions: Refer to the attached existing conditions drainage plan sheet D-1. The proposed townhome site (Parcel A) naturally drains to the north towards the existing wetlands and towards Bluff Creek. There is also drainage entering Parcel A from the parcel of land (Parcel B) to the south that is bound be W. 7801, Galpin Avenue and Hwy 5. This drainage is conveyed through an existing 27" culvert that exists beneath W. 780i street. We examined the existing conditions on Parcel B to determine the peak flow rates that may be anticipated through the culvert and incorporated the development of Parcel A. Below are the existing condition peak flow rates for the required storm events. The peak flow rates for Parcel B are the flow rates at the down stream end of the existing 27" culvert. These calculations were generated using HydroCad. Drainage Acres 100 Yr 10 Yr 2 Yr Peak Area Peak Q (cfs) Peak Q Q (cfs) cfs Parcel A 4.00 12.64 6.32 0.00 Parcel B (27" 7.97 5.85 2.03 0.01 culvert) Total 11.97 18.49 8.35 0.01 Proposed Drainage: The proposed drainage areas are similar to the existing conditions except that the amount of pervious area has increased with the proposed development. The amount of impervious area proposed is 1.14 acres and a Curve Number of 98 was assumed for this area. The remaining amount of pervious area is 2.51 acres and a Curve Number of 61 was assumed for this area. The weighted curve number was then calculated to be 68. Please refer to the attached proposed Drainage Areas sheet D-2 Rate Control is provided by a NURP pond located at the north western part of the site, just south of the wetland buffer. The NURP pond is designed to limit the flow rates to not exceed the existing conditions for the 100 -year, 10 -year, and 2 -year rain events. Rainfall amounts uses are 6" for the 100 year storm, 4.2" for the 10 year storm and 1.15' for the 2 year storm. The 6" and 10" rainfall amounts were given by City engineering staff and the 2 year storm is based on the Rainfall Frequency Atlas of the Midwest, 1992. See attached Hydro Cad calculations for hydrographs. The table below lists the resulting flow rates to compare between existing and Page 1 of 2 SCANNED Preliminary Stormwater Management Summary for Galpin Crossing Twinhomes Chanhassen, MN Revised 3/22/2006 proposed conditions. For all required storm events, the proposed flow rates do not exceed the existing conditions. Water Quality is provided by the dead storage in the pond. Per NURP standards, the required dead storage volume is equal to the runoff from the 2.5" rain from the proposed conditions. From the HydroCad calculations the required volume is 0.15 acre-feet. The provided volume is 0.16 acre-feet. Please see attached Pond WQ calculations sheet. Page 2 of 2 Existing Proposed Existing Proposed Existing Proposed 100 Yr 100 Yr Q 10 Yr 10 Yr Q 2 Yr Q 2 Yr Q Q (cfs) (cfs) Q (cfs) (cfs) (cfs) (cfs) Parcel A 12.64 11.30 6.32 4.96 0.00 0.00 Parcel B 5.85 5.85 2.03 2.03 0.01 0.01 (27„ Culvert) Total 18.49 17.15 8.35 6.99 0.01 0.01 Water Quality is provided by the dead storage in the pond. Per NURP standards, the required dead storage volume is equal to the runoff from the 2.5" rain from the proposed conditions. From the HydroCad calculations the required volume is 0.15 acre-feet. The provided volume is 0.16 acre-feet. Please see attached Pond WQ calculations sheet. Page 2 of 2 PROJECT: GALPIN CROSSING TWINHOMES LOCATION: Chanhassen DEVELOPER: EPIC DEVELOPMENT, LLC DATE: 2/16/2006 STAGE AREA(SQ.FT) VOLUME(AC.FT) 946 19.33 0.008327135 948 343.4 0.032943756 950 1091.63 0.076067034 952 2221.85 0.080850666 953 4821.86 TOTAL STORAGE TO 953.00 POND WQ CALCULATIONS BASED ON PROPOSED GRADING PLAN STORAGE REQUIRED Nurp Requirements (Dead Storage) 0.15 ACRE FEET 100 yr. Requirements (Live Storage) See Hydrocad Model NWL = 953.00 HWL = See Hydrocad Model 0.20 ACRE FEET (=Dead Storage) Ryan Engineering, Inc. Galpin North Pond Vol 6/15/05 Galpin Crossing Twinhomes-R1 Prepared by RYAN ENGINEERING, INC. HydroCAD® 7.00 s/n 001971 © 1986-2003 Applied M Type /I 24 -hr Water Quality Rainfall=2.50" Subcatchment 3S: Proposed to Pond Hydrograph ® Runo(t Type II 24 -hr Water Quality 2 Rainfall=2.50" Runoff Area=3.650 ac Runoff Volume=0.152 of q Runoff Depth=0.50" u Tc=15.0 min LL CN=73 7 8 9 10 11 12 13 Time (hours) 1S 2S 3S Ex. No. Side Ex.So th Side Propose to Pond 47 1�1 Ex. So.Side Low Area Pond Subcat Reach on Link Drainage Diagram for Galpin Crossing TWinhomes•R1 Prepared by RYAN ENGINEERING, INC. 3/22/2006 FHydroCAD@ 7.00 s/n 001971 ©1986-2003 Applied Microcomputer Systems Galpin Crossing Twinhomes-R1 Prepared by RYAN ENGINEERING, INC. M Type 11 24 -hr 2Year Rainfall= 1. 15" Page 2 Subcatchment 1S: Ex. No. Side Runoff = 0.01 cfs @ 17.90 hrs, Volume= 0.002 af, Depth= 0.01" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 2Year Rainfall=1.15' Area (ac) CN Description 3.650 69 50-75% Grass cover, Fair, HSG B Tc Length Slope Velocity Capacity Description (min) (feet) (Wit) (fUsec) (cfs) 15.0 Direct Entry, Direct Subcatchment 1S: Ex. No. Side Hydrograph — Runoff 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Type II 24 -hr 2Year 0.004 Rainfall=1.15" 0.004 Runoff Area=3.650 ac 0.003 Runoff Volume=0.002 of p 0.003,Runoff Depth=0.01" 0 LL 0.002 Tc=15.0 min 0.002 CN=69 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Galpin Crossing Twinhomes-R1 Type 11 24 -hr 2Year Rainfall= 1. 15" Prepared by RYAN ENGINEERING, INC. Page 3 HydroCAD® 7.00 s/n 001971 @ 1986-2003 Applied Microcomputer Systems 3/22/2006 Subcatchment 2S: Ex.South Side Runoff = 0.01 cfs @ 17.90 hrs, Volume= 0.005 af, Depth= 0.01" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 2Year Rainfall=1.15" Area (ac) CN Description 7.970 69 50-75% Grass cover, Fair, HSG B Tc Length Slope Velocity Capacity Description 15.0 Direct Entry, Direct Subcatchment 2S: Ex.South Side Hydrograph 0.011 0071 0.01 Type II 24 -hr Mar 01 0 9 o.00s Rainfall=1.15" 0.009 o.om Runoff Area=7.970 ac 0.008 0.007 Runoff Volume=0.005 of 0.007 aow Runoff Depth=0.01" c 0.006 LL 0.005 Tc=15.0 min 0.005 0004. CN=69 0.001 0.001 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) — RunoH Galpin Crossing Twinhomes-R1 Type 11 24 -hr 2Year Rainfall=1.15" Prepared by RYAN ENGINEERING, INC. Page 4 HydroCAD@ 7.00 s/n 001971 ©1986-2003 Applied Microcomputer Systems 3/22/2006 Subcatchment 3S: Proposed to Pond Runoff = 0.02 cfs @ 12.56 hrs, Volume= 0.009 af, Depth= 0.03" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 2Year Rainfall=1.15" Area (ac) CN Description 2.510 61 >75% Grass cover, Good, HSG B 1.140 98 Paved parking & roofs 3.650 73 Weighted Average Tc Length Slope Velocity Capacity Description 15.0 Direct Entry, Direct Subcatchment 3S: Proposed to Pond Hydrograph °.021 Type II 24 -hr 2Year 0.02 0018 Rainfall=1.15" 0017 Runoff Area=3.650 ac 0.016 0015 Runoff Volume=0.009 of 0.014 3 0012 Runoff Depth=0.03" O LL 0017 Tc=15.0 min 0.61 — CN=73 MM 9 10 11 12 13 Time (hours) —Runoff Galpin Crossing Twinhomes-R1 Prepared by RYAN ENGINEERING, INC. HvdroCAD® 7.00 s/n 001971 n 1986 -?003 Ani Type 1124 -hr 2Year Rainfall=1.15" Page 5 Pond 2P: Ex. So.Side Low Area Inflow Area = 7.970 ac, Inflow Depth = 0.01" for 2Year event Inflow = 0.01 cfs @ 17.90 hrs, Volume= 0.005 of Outflow = 0.00 cfs @ 5.00 hrs, Volume= 0.000 af, Atten= 100%, Lag= 0.0 min Primary = 0.00 cfs @ 5.00 hrs, Volume= 0.000 of Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 955.02'@ 20.00 hrs Surf.Area= 8,159 sf Storage= 229 cf Plug -Flow detention time= (not calculated) Center -of -Mass det. time= (not calculated) _ # Invert Avail.Storage Storage Description 1 955.00' 193,052 cf Custom Stage Data (Prismaticyisted below Elevation (feet) Surf.Area (sq -ft) Inc.Store (cubic -feet) Cum.Store (cubic -feet) 955.00 8,000 0 0 956.00 16,466 12,233 12,233 958.00 47,655 64,121 76,354 960.00 69,043 116,698 193,052 # Routing Invert Outlet Devices 1 Primary 955.50' 27.0" x 95.0' long Culvert RCP, end -section conforming to fill, Ke= 0.500 Outlet Invert= 955.00' S=0.0053'/' n=0.013 Cc= 0.900 Primary OutFlow Max=0.00 cfs @ 5.00 hrs HW=955.00' (Free Discharge) t1=Culvert ( Controls 0.00 cfs) Galpin Crossing Twinhomes-1111 Type 1124 -hr 2Year Rainfall=1.15" Prepared by RYAN ENGINEERING, INC. Page 6 HydroCAM) 7.00 s/n 001971 © 1986-2003 Applied Microcomputer Systems 3/22/2006 Pond 2P: Ex. So.Side Low Area Hydrograph 0.01 0.011 0.011 0.01 Inflow Area=7.970 ac 0.01 o:� Peak Elev=955.02' 0.008 0M8 Storage=229 cf 0.007 o:' 27.0" x 95.0' Culvert c 0.006 E 0.005 7 8 9 10 11 12 13 14 Time (hours) 15 16 17 18 19 20 Inflow Primary Galpin Crossing Twinhomes-1111 Prepared by RYAN ENGINEERING, INC. Pond 3P: Pond Type 1124 -hr 2Year Rainfall= 1. 15" Page 7 Inflow Area = 11.620 ac, Inflow Depth = 0.01" for 2Year event Inflow = 0.02 cfs @ 12.56 hrs, Volume= 0.009 of Outflow = 0.01 cfs @ 19.20 hrs, Volume= 0.004 af, Aften= 52%, Lag= 398.7 min Primary = 0.01 cfs @ 19.20 hrs, Volume= 0.004 of Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 953.04' @ 19.20 hrs Surf.Area= 0.112 ac Storage= 0.005 of Plug -Flow detention time= 216.8 min calculated for 0.004 of (48% of inflow) Center -of -Mass det. time= 96.7 min ( 1,032.9 - 936.2 ) # Invert Avail.Storage Storage Description 1 953.00' 0.434 of Custom Stage Data (Prismatic]Listed below Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 953.00 0.111 0.000 0.000 954.00 0.132 0.121 0.121 956.00 0.181 0.313 0.434 # Routing Invert Outlet Devices 1 Primary 953.00' 21.0" x 20.0' long Culvert RCP, end -section conforming to fill, Ke= 0.500 Outlet Invert= 952.70' S=0.0150'/' n=0.013 Cc= 0.900 2 Primary 955.00' 0.5' long x 5.0' breadth Broad -Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Primary OutFlow Max=0.01 cfs @ 19.20 hrs HW=953.04' (Free Discharge) 1=Culvert (Barrel Controls 0.01 cfs @ 1.0 fps) L 2=Broad-Crested Rectangular Weir( Controls 0.00 cfs) Galpin Crossing Twinhomes-1111 Prepared by RYAN ENGINEERING, INC. Pond 3P: Pond Hydrograph Type l/ 24 -hr 2Year Rainfall= 1. 15" Page 8 Time (hours) Inflow Primary Galpin Crossing Twinhomes-R1 Type 11 24 -hr 10 Year Rainfall=4.20" Prepared by RYAN ENGINEERING, INC. Page 9 HydroCAD@ 7.00 s/n 001971 @ 1986-2003 Applied Microcomputer Systems 3/22/2006 Subcatchment 1S: Ex. No. Side Runoff = 6.32 cfs @ 12.08 hrs, Volume= 0.383 af, Depth= 1.26" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 10 Year Rainfall=4.20" Area (ac) CN Description 3.650 69 50-75% Grass cover, Fair, HSG B Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Direct Subcatchment 1S: Ex. No. Side Hydrograph —Runoff Type II 24 -hr 10 Year Rainfall=4.20" Runoff Area=3.650 ac Runoff Volume=0.383 of Runoff Depth=1.26" Tc=15.0 min CN=69 5 6 7 A 9 10 11 19 13 to 1F 16 17 1R 19 Time (hours) Galpin Crossing Twinhomes-R1 Type 1l 24 -hr 10 Year Rainfall=4.20" Prepared by RYAN ENGINEERING, INC. Page 10 HydroCAD® 7.00 s/n 001971 © 1986-2003 Applied Microcomputer Systems 3/22/2006 Subcatchment 2S: Ex.South Side Runoff = 13.79 cfs @ 12.08 hrs, Volume= 0.836 af, Depth= 1.26" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 10 Year Rainfall=4.20" Area (ac) CN Description 7.970 69 50-75% Grass cover, Fair, HSG B Tc Length Slope Velocity Capacity Description 15.0 Direct Entry, Direct 5 6 7 8 9 Subcatchment 2S: Ex.South Side Hydrograph Type II 24 -hr 10 Year Rainfall=4.20" Runoff Area=7.970 ac Runoff Volume=0.836 of Runoff Depth=1.26" Tc=15.0 min CN=69 Time (hours) — Runoff Galpin Crossing Twinhomes-1111 Type 11 24 -hr 10 Year Rainfall=4.20" Prepared by RYAN ENGINEERING, INC. Page 11 HydroCAD® 7.00 s/n 001971 @ 1986-2003 Applied Microcomputer Systems 3/22/2006 Subcatchment 3S: Proposed to Pond Runoff = 7.72 cis @ 12.08 hrs, Volume= 0.462 at, Depth= 1.52" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 10 Year Rainfall=4.20" Area (ac) CN Description 2.510 61 >75% Grass cover, Good, HSG B 1.140 98 Paved parking & roofs 3.650 73 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Direct a LL Subcatchment 3S: Proposed to Pond Hydrograph 8 7.72 cfs Type II 24 -hr 10 Year Rainfall=4.20" 6 Runoff Area=3.650 ac 5 Runoff Volume=0.462 of Runoff Depth=1.52" Tc=15.0 min 3 CN=73 2 a 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) — RUOof( Galpin Crossing Twinhomes-111 Type 1124 -hr 10 Year Rainfall=4.20" Prepared by RYAN ENGINEERING, INC. Page 12 HydroCAD@ 7.00 s/n 001971 @ 1986-2003 Applied Microcomputer Systems 3/22/2006 Pond 2P: Ex. So.Side Low Area Inflow Area = 7.970 ac, Inflow Depth = 1.26" for 10 Year event Inflow = 13.79 cfs @ 12.08 hrs, Volume= 0.836 of Outflow = 2.03 cfs @ 12.65 hrs, Volume= 0.620 af, Atten= 85%, Lag= 34.1 min Primary = 2.03 cfs @ 12.65 hrs, Volume= 0.620 of Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 956.14'@ 12.65 hrs Surf.Area= 18,646 sf Storage= 16,715 cf Plug -Flow detention time= 141.9 min calculated for 0.620 of (74% of inflow) Center -of -Mass det. time= 74.6 min ( 888.8 - 814.2 ) # Invert Avail.Storage Storage Description 1 955.00' 193,052 cf Custom Stage Data (Prismaticj_isted below Elevation Surf.Area Inc.Store Cum.Store (feet) (sq -ft) (cubic -feet) (cubic -feet) 955.00 8,000 0 0 956.00 16,466 12,233 12,233 958.00 47,655 64,121 76,354 960.00 69,043 116,698 193,052 # Routing Invert Outlet Devices 1 Primary 955.50' 27.0" x 95.0' long Culvert RCP, end -section conforming to fill, Ke= 0.500 Outlet Invert= 955.00' S=0.0053'/' n=0.013 Cc= 0.900 Primary OutFlow Max=2.03 cfs @ 12.65 hrs HW=956.14' (Free Discharge) L1=Culvert (Barrel Controls 2.03 cfs @ 3.3 fps) Galpin Crossing Twinhomes-R1 Prepared by RYAN ENGINEERING, INC. HvdroCAD® 7.00 s/n 001971 n 1986-9nn3 An u LL Type 11 24 -hr 10 Year Rainfall=4.20" Page 13 Pond 2P: Ex. So.Side Low Area Hydrograph 15- 14- 13.79 ds 13 Inflow Area=7.970 ac 12 11Peak Elev=956.14' 19 Storage=16,715 cf 8 27.0" x 95.0' Culvert 7 6 5 4 3- 2.03 cfs 2 0 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) —Inflow Primary Galpin Crossing Twinhomes-111 Prepared by RYAN ENGINEERING, INC. HydroCAD@ 7.00 s/n 001971 © 1986-2003 Ap Pond 3P: Pond Type 11 24 -hr 10 Year Rainfall=4.20" Page 14 Inflow Area = 11.620 ac, Inflow Depth = 1.12" for 10 Year event Inflow = 7.97 cfs @ 12.10 hrs, Volume= 1.082 of Outflow = 4.96 cfs @ 12.28 hrs, Volume= 1.044 af, Atten= 38%, Lag= 10.7 min Primary = 4.96 cfs @ 12.28 hrs, Volume= 1.044 of Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 954.09'@ 12.28 hrs Surf.Area= 0.134 ac Storage= 0.135 of Plug -Flow detention time=29.2 min calculated for 1.044 of (97% of inflow) Center -of -Mass det. time= 17.7 min ( 871.3 - 853.6 ) # Invert Avail.Storage Storage Description 1 953.00' 0.434 of Custom Stage Data (Prismatic)_isted below Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 953.00 0.111 0.000 0.000 954.00 0.132 0.121 0.121 956.00 0.181 0.313 0.434 # Routing Invert Outlet Devices 1 Primary 953.00' 21.0" x 20.0' long Culvert RCP, end -section conforming to fill, Ke= 0.500 Outlet Invert= 952.70' S= 0.0150'/' n=0.013 Cc= 0.900 2 Primary 955.00' 0.5' long x 5.0' breadth Broad -Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Primary OutFlow Max=4.94 cfs @ 12.28 hrs HW=954.09' (Free Discharge) 1=Culvert (Barrel Controls 4.94 cfs @ 4.5 fps) L 2=Broad-Crested Rectangular Weir( Controls 0.00 cfs) Galpin Crossing Twinhomes-R1 Type 1124 -hr 10 Year Rainfall=4.20" Prepared by RYAN ENGINEERING, INC. Page 15 HydroCAD® 7.00 s/n 001971 © 1986-2003 Applied Microcomputer Systems 3/22/2006 10 Pond 3P: Pond Hydrograph Inflow Area=11.620 ac rime (hours) Peak Elev=954.09' Storage=0.135 of Inflow Primary Galpin Crossing Twinhomes-R1 Prepared by RYAN ENGINEERING, INC. HydroCAD@ 7.00 s/n 001971 ©1986-2003 Applied M Type// 24 -hr 100 year Rainfall=6.00" Page 16 Subcatchment 1S: Ex. No. Side Runoff = 12.64 cfs @ 12.08 hrs, Volume= 0.753 af, Depth= 2.48" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 year Rainfall=6.00" Area (ac) CN Description 3.650 69 50-75% Grass cover. Fair. HSG B Tc Length Slope Velocity Capacity Description int KOMI !ff/ff1 /9/c.'% h.fcI 15.0 Direct Entry, Direct Subcatchment 1S: Ex. No. Side Hydrograph — Runoff t2 Type II 24 -hr 100 year ,o Rainfall=6.00r' 9 Runoff Area=3.650 ac 6 Runoff Volume=0.753 of u 7 Runoff Depth=2.48" LL 6 Tc=15.0 min 5 CN=69 6 7 8 9 10 11 12 13 Time (hours) Galpin Crossing Twinhomes-1111 Prepared by RYAN ENGINEERING, INC. HydroCAD@ 7.00 s/n 001971 @ 1986-2003 Apl Type 11 24 -hr 100 year Rainfall=6.00" Page 17 Subcatchment 2S: Ex.South Side Runoff = 27.59 cfs @ 12.08 hrs, Volume= 1.645 af, Depth= 2.48" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 year Rainfall=6.00" Area (ac) CN Description 7.970 69 50-75% Grass cover. Fair. HSG B Tc Length Slope Description 15.0 Direct Entry, Direct Subcatchment 2S: Ex.South Side Hydrograph 1 27.59 cfs I 26 Type II 24 -hr 100 year 22- Rainfall=6.00" 20 Runoff Area=7.970 ac 16 Runoff Volume=1.645 of 0 14 Runoff Depth=2.48" LL 12 Tc=15.0 min 10 CN=69 5 6 7 8 9 10 11 12 13 Time (hours) — Runoff Galpin Crossing Twinhomes-R1 Prepared by RYAN ENGINEERING, INC. HvdroCAD@ 7.00 s/n 001971 @ 1986-2003 Ao Type 11 24 -hr 100 year Rainfall=6.00" Page 18 Subcatchment 3S: Proposed to Pond Runoff = 14.47 cfs @ 12.07 hrs, Volume= 0.863 af, Depth= 2.84" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 year Rainfall=6.00" Area (ac) CN Description 2.510 61 >75% Grass cover, Good, HSG B 1.140 98 Paved parking & roofs 3.650 73 Weighted Average Tc Length Slope Velocity Capacity Description 15.0 Direct Entry, Direct Subcatchment 3S: Proposed to Pond Hydrograph — Runoff 13 Type II 24 -hr 100 year 12 Rainfall=6.00" 11 Runoff Area=3.650 ac u 19 Runoff Volume=0.863 of 0 6 Runoff Depth=2.84" LL 7 6 Tc=15.0 min 5 CN=73 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Galpin Crossing Twinhomes-R1 Prepared by RYAN ENGINEERING, INC. Type 11 24 -hr 100 year Rainfall=6.00" Page 19 Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 956.64'@ 12.45 hrs Surf.Area= 26,392 sf Storage= 32,640 cf Plug -Flow detention time= 112.4 min calculated for 1.404 of (85% of inflow) Center -of -Mass det. time= 68.7 min ( 868.9 - 800.2 ) # Invert Avail.Storage Storage Description 1 955.00' 193,052 cf Custom Stage Data (Prismaticyisted below Elevation Surf.Area Inc.Store Cum.Store _ (feet) (sq -ft) (cubic -feet) (cubic -feet) 955.00 8,000 0 0 956.00 16,466 12,233 12,233 958.00 47,655 64,121 76,354 960.00 69,043 116,698 193,052 # Routing Invert Outlet Devices 1 Primary 955.50' 27.0" x 95.0' long Culvert RCP, end -section conforming to fill, Ke= 0.500 Outlet Invert= 955.00' S=0.0053'/' n=0.013 Cc= 0.900 Primary OutFlow Max=5.85 cfs @ 12.45 hrs HW=956.64' (Free Discharge) t1=Culvert (Barrel Controls 5.85 cfs @ 4.2 fps) Pond 2P: Ex. So.Side Low Area Inflow Area = 7.970 ac, Inflow Depth= 2.48" for 100 year event Inflow = 27.59 cfs @ 12.08 hrs, Volume= 1.645 of Outflow = 5.85 cfs @ 12.45 hrs, Volume= 1.409 af, Atten= 79%, Lag= 22.6 min Primary = 5.85 cfs @ 12.45 hrs, Volume= 1.409 of Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 956.64'@ 12.45 hrs Surf.Area= 26,392 sf Storage= 32,640 cf Plug -Flow detention time= 112.4 min calculated for 1.404 of (85% of inflow) Center -of -Mass det. time= 68.7 min ( 868.9 - 800.2 ) # Invert Avail.Storage Storage Description 1 955.00' 193,052 cf Custom Stage Data (Prismaticyisted below Elevation Surf.Area Inc.Store Cum.Store _ (feet) (sq -ft) (cubic -feet) (cubic -feet) 955.00 8,000 0 0 956.00 16,466 12,233 12,233 958.00 47,655 64,121 76,354 960.00 69,043 116,698 193,052 # Routing Invert Outlet Devices 1 Primary 955.50' 27.0" x 95.0' long Culvert RCP, end -section conforming to fill, Ke= 0.500 Outlet Invert= 955.00' S=0.0053'/' n=0.013 Cc= 0.900 Primary OutFlow Max=5.85 cfs @ 12.45 hrs HW=956.64' (Free Discharge) t1=Culvert (Barrel Controls 5.85 cfs @ 4.2 fps) Galpin Crossing Twinhomes-R1 Type // 24 -hr 100 year Rainfall=6. 00 " Prepared by RYAN ENGINEERING, INC. Page 20 HydroCAD® 7.00 s/n 001971 © 1986-2003 Applied Microcomputer Systems 3/22/2006 Pond 2P: Ex. So.Side Low Area Hydrograph — Inflow Primary 261 A Inflow Area=7.970 ac 24 22 Peak Elev=956.64' 20 Storage=32,640 cf 16 27.0" x 95.0' Culvert LL g 14 12 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Galpin Crossing Twinhomes-R1 Type 1124 -hr 100 year Rainfall=6.00" Prepared by RYAN ENGINEERING, INC. Page 21 HydroCAD@ 7.00 s/n 001971 @ 1986-2003 Applied Microcomputer Systems 3/22/2006 Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 954.90'@ 12.28 hrs Surf.Area= 0.154 ac Storage= 0.263 of Plug -Flow detention time= 22.6 min calculated for 2.216 of (98% of inflow) Center -of -Mass det. time= 15.4 min ( 855.5 - 840.1 ) # Invert Avail.Storage Storage Description 1 953.00' 0.434 of Custom Stage Data (Prismatic}isted below Elevation Surf.Area Pond 3P: Pond Inflow Area = 11.620 ac, Inflow Depth = 2.35" for 100 year event Inflow = 17.27 cfs @ 12.09 hrs, Volume= 2.272 of Outflow = 11.30 cfs @ 12.28 hrs, Volume= 2.223 af, Atten= 35%, Lag= 11.0 min Primary = 11.30 cfs @ 12.28 hrs, Volume= 2.223 of Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 954.90'@ 12.28 hrs Surf.Area= 0.154 ac Storage= 0.263 of Plug -Flow detention time= 22.6 min calculated for 2.216 of (98% of inflow) Center -of -Mass det. time= 15.4 min ( 855.5 - 840.1 ) # Invert Avail.Storage Storage Description 1 953.00' 0.434 of Custom Stage Data (Prismatic}isted below Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 953.00 0.111 0.000 0.000 954.00 0.132 0.121 0.121 956.00 0.181 0.313 0.434 # Routing Invert Outlet Devices 1 Primary 953.00' 21.0" x 20.0' long Culvert RCP, end -section conforming to fill, Ke= 0.500 Outlet Invert= 952.70' S=0.0150'/' n=0.013 Cc= 0.900 2 Primary 955.00' 0.5' long x 5.0' breadth Broad -Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Primary OutFlow Max=11.28 cfs @ 12.28 hrs HW=954.90' (Free Discharge) 1=Culvert (Barrel Controls 11.28 cfs @ 5.4 fps) 1 2=Broad-Crested Rectangular Weir( Controls 0.00 cfs) Galpin Crossing Twinhomes-R1 Prepared by RYAN ENGINEERING, INC. HydroCAD® 7.00 sln 001971 © 1986-2003 An n `u 3 U. LL Pond 3P: Pond Hydrograph Type 11 24 -hr 100 year Rainfall=6. 00 " Page 22 Time (hours) mFlow Primary Preliminary Stormwater Management Summary for Galpin Crossing Twinhomes CITY OF RECEIVED Chanhassen, MN 3/17/06 MAR 1 7 2006 CHANHASSEN PLANNING DEN Existing Drainage Conditions: Refer to the attached existing conditions drainage plan sheet D-1. The proposed townhome site (Parcel A) naturally drains to the north towards the existing wetlands and towards Bluff Creek. There is also drainage entering Parcel A from the parcel of land (Parcel B) to the south that is bound be W. 78`s, Galpin Avenue and Hwy 5. This drainage is conveyed through an existing 27" culvert that exists beneath W. 78d' street. We examined the existing conditions on Parcel B to determine the peak flow rates that may be anticipated through the culvert and incorporated the development of Parcel A. Below are the existing condition peak flow rates for the required storm events. The peak flow rates for Parcel B are the flow rates at the down stream end of the existing 27" culvert. These calculations were generated using HydroCad. Drainage Acres 100 Yr 10 Yr 2 Yr Peak Area Peak Q (cfs) Peak Q Q (cfs) (cfs) Parcel A 4.00 11.17 4.38 0.00 Parcel B (27" 7.97 7.20 3.58 0.01 culvert) Total 11.97 28.37 7.86 0.01 Proposed Drainage: The proposed drainage areas are similar to the existing conditions except that the amount of pervious area has increased with the proposed development. The amount of impervious area proposed is 1.14 acres and a Curve Number of 98 was assumed for this area. The remaining amount of pervious area is 2.51 acres and a Curve Number of 61 was assumed for this area. The weighted curve number was then calculated to be 68. Please refer to the attached proposed Drainage Areas sheet D-2 Rate Control is provided by a NURP pond located at the north western part of the site, just south of the wetland buffer. The NURP pond is designed to limit the flow rates to not exceed the existing conditions for the 100 -year, 10 -year, and 2 -year rain events. Rainfall amounts were based on Rainfall Frequency Atlas of the Midwest, 1992. See attached Hydro Cad calculations for hydrographs. The table below lists the resulting flow rates to compare between existing and proposed conditions. For all required storm events, the proposed flow rates do not exceed the existing conditions. Page I of 2 SCANNED Preliminary Stormwater Management Summary for Galpin Crossing Twinhomes Chanhassen, MN 3/17/06 Water Quality is provided by the dead storage in the pond. Per NURP standards, the required dead storage volume is equal to the runoff from the 2.5" rain from the proposed conditions. From the HydroCad calculations the required volume is 0.15 acre-feet. The provided volume is 0.16 acre-feet. Please see attached Pond WQ calculations sheet. Page 2 of 2 Existing Proposed Existing Proposed Existing Proposed 100 Yr 100 Yr Q 10 Yr 10 Yr Q 2 Yr Q 2 Yr Q Q (cfs) (cfs) Q (cfs) (cfs) (cfs) (cfs) Parcel A 11.17 8.67 4.68 2.46 0.00 0.00 Parcel B 7.20 7.20 4.52 4.52 0.01 0.01 (27" Culvert Total 28.37 1 15.87 9.20 6.98 0.01 0.01 Water Quality is provided by the dead storage in the pond. Per NURP standards, the required dead storage volume is equal to the runoff from the 2.5" rain from the proposed conditions. From the HydroCad calculations the required volume is 0.15 acre-feet. The provided volume is 0.16 acre-feet. Please see attached Pond WQ calculations sheet. Page 2 of 2 PROJECT: GALPIN CROSSING TWINHOMES LOCATION: Chanhassen DEVELOPER: EPIC DEVELOPMENT, LLC DATE: 211612006 STAGE AREA (SQ.FT.) VOLUME (AC.FT.) 948 217 0.025964187 950 914 0.06505968E 952 1920 0.06976584 953 4158 TOTAL STORAGE TO 953.00 POND WQ CALCULATIONS BASED ON PROPOSED GRADING PLAN STORAGE REQUIRED Nurp Requirements (Dead Storage) 0.15 ACRE FEET 100 yr. Requirements (Live Storage) See Hydrocad Model NWL = 953.00 HWL = See Hydrocad Model 0.16 ACRE FEET (=Dead Storage) Ryan Engineering, Inc. Galpin North Pond Vol 6/15/05 Galpin Crossing Twinhomes Prepared by RYAN ENGINEERING, INC. HydroCADO 7.00 s/n 001971 © 1986-2003 Applied Microcom Type II 24 -hr Water Quality Rainfall=2.50" Subcatchment 3S: Proposed to Pond Hydrograph 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) ❑ Runoff z sr crs Type II 24 -hr Water Quality Rainfall=2.50" Runoff Area=3.650 ac Runoff Volume=0.152 of Runoff Depth=0.50" Tc=15.0 min C N=73 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) ❑ Runoff 1S 2S 3S Ex. No. Side Ex.SOL th Side Propose to Pond 47 47 2P � 3P Ex. So.Side Low Area Pond Subcat Reach Aon Link Galpin Crossing Twinhomes Prepared by RYAN ENGINEERING, INC. HydroCAD® 7.00 s/n 001971 © 1986-2003 Api Type // 24 -hr 2Year Rainfall=1.15" Page 2 Subcatchment 1S: Ex. No. Side Runoff = 0.01 cfs @ 17.90 hrs, Volume= 0.002 af, Depth= 0.01" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 2Year Rainfall=1.15" Area (ac) CN Description 3.650 69 50-75% Grass cover. Fair. HSG B Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Direct Subcatchment 1S: Ex. No. Side Hydrograph Type II 24 -hr 2Year Rainfall=1.15" "I Runoff Area=3.650 ac 0003 Runoff Volume=0.002 of 00031 Runoff Depth=0.01" 0.002 Tc=15.0 min CN=69 0.001 8 9 10 11 12 13 14 1 Time (hours) — Runoff Galpin Crossing Twinhomes Prepared by RYAN ENGINEERING, INC. HvdroCAD® 7.00 s/n 001971 n 1986-9003 An Type 1124 -hr 2Year Rainfall=1.15" Page 3 Subcatchment 2S: Ex.South Side Runoff = 0.01 cfs @ 17.90 hrs, Volume= 0.005 af, Depth= 0.01" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 2Year Rainfall=1.15' Area (ac) CN Description 7.970 69 50-75% Grass cover, Fair, HSG B Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Direct Subcatchment 2S: Ex.South Side Hydrograph 0.013 0.012 0.011 0011 0.01 Type II 24 -hr Mar 0.01 o.009 Rainfall=1.15" 0.009 o.008 Runoff Area=7.970 ac 0.008 0007 Runoff Volume=0.005 of F 0.007 ao06 Runoff Depth=0.01" 0.006 LL 0.005 Tc=15.0 min 0.005 °°°' CN=69 0.001 0.001 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) — Runof( Galpin Crossing Twinhomes Prepared by RYAN ENGINEERING, INC. HydroCAD@ 7.00 s/n 001971 @ 1986-2003 Applied M Type 1124 -hr 2Year Rainfall=1.15" Page 4 Subcatchment 3S: Proposed to Pond Runoff = 0.02 cfs @ 12.56 hrs, Volume= 0.009 af, Depth= 0.03" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type 11 24 -hr 2Year Rainfall=1.15' Area (ac) CN Description 2.510 61 >75% Grass cover, Good, HSG B 1.140 98 Paved parking & roofs 3.650 73 Weighted Average Tc Length Slope Description 15.0 Direct Entry, Direct Subcatchment 3S: Proposed to Pond Hydrograph — RunoH 0021 Type II 24 -hr Mar 0.02 Rainfall=1.15" 0019 18 0.077 Runoff Area=3.650 ac 0.016 0.015 Runoff Volume=0.009 of 0.0,4 0.012 Runoff Depth=0.03" 0.01, Tc=15.0 min 0.01�] 0009 MQ CN=73 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Galpin Crossing Twinhomes Prepared by RYAN ENGINEERING, INC. Type 11 24 -hr 2Year Rainfall= 1. 15" Page 5 Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 955.20'@ 18.39 hrs Surf.Area= 47 sf Storage= 19 cf Plug -Flow detention time=26.8 min calculated for 0.005 of (92% of inflow) Center -of -Mass det. time= 13.2 min ( 1,036.2 - 1,023.0 ) # Invert Avail.Storage Pond 2P: Ex. So.Side Low Area Inflow Area = 7.970 ac, Inflow Depth = 0.01" for 2Year event Inflow = 0.01 cfs @ 17.90 hrs, Volume= 0.005 of Outflow = 0.01 cfs @ 18.39 hrs, Volume= 0.005 af, Atten= 1%, Lag= 29.0 min Primary = 0.01 cfs @ 18.39 hrs, Volume= 0.005 of Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 955.20'@ 18.39 hrs Surf.Area= 47 sf Storage= 19 cf Plug -Flow detention time=26.8 min calculated for 0.005 of (92% of inflow) Center -of -Mass det. time= 13.2 min ( 1,036.2 - 1,023.0 ) # Invert Avail.Storage Storage Description 1 955.20' 187,404 cf Custom Stage Data (Prismaticyisted below Elevation Surf.Area Inc.Store Cum.Store (feet) (sq -ft) (cubic -feet) (cubic -feet) 955.20 0 0 0 956.00 16,466 6,586 6,586 958.00 47,655 64,120 70,707 960.00 69,043 116,697 187,404 _ # Routing Invert Outlet Devices 1 Primary 954.90' 27.0" x 95.0' long Culvert RCP, end -section conforming to fill, Ke= 0.500 Outlet Invert= 954.90' S=0.0000'/' n=0.013 Cc= 0.900 Primary OutFlow Max=0.17 cfs @ 18.39 hrs HW=955.20' (Free Discharge) t1=Culvert (Barrel Controls 0.17 cfs @ 0.8 fps) Galpin Crossing Twinhomes Prepared by RYAN ENGINEERING, INC. HydroCAD® 7.00 s/n 001971 ©1986-2003 Apl 0.001 0.001 Type 11 24 -hr 2Year Rainfall= 1. 15 " Page 6 Pond 2P: Ex. So.Side Low Area Hydrograph Inflow Area=7.970 ac Peak Elev=955.20' Storage=19 cf 27.011 x 95.0' Culvert 5 6 7 8 9 10 Time (hours) 14 15 16 17 18 19 20 F--1 n-fi.-. Primary Galpin Crossing Twinhomes Type ll 24 -hr 2Year Rainfall= 1.15" Prepared by RYAN ENGINEERING, INC. Page 7 HydroCAD® 7.00 s/n 001971 @ 1986-2003 Applied Microcomputer Systems 3/17/2006 Pond 3P: Pond Inflow Area = 11.620 ac, Inflow Depth= 0.01" for 2Year event Inflow = 0.02 cfs @ 15.59 hrs, Volume= 0.014 of Outflow = 0.01 cfs @ 20.00 hrs, Volume= 0.002 af, Atten= 78%, Lag= 264.5 min Primary = 0.01 cfs @ 20.00 hrs, Volume= 0.002 of Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 953.03'@ 20.00 hrs Surf.Area= 0.672 ac Storage= 0.012 of Plug -Flow detention time=282.7 min calculated for 0.002 of (12% of inflow) Center -of -Mass det. time= 74.6 min ( 1,045.2 - 970.6 ) # Invert Avail.Storaae Storaae Description 1 953.00' 0.685 of Custom Stage Data (Prismatic�isted below Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 953.00 0.690 0.000 0.000 954.00 0.120 0.405 0.405 956.00 0.160 0.280 0.685 # Routing Invert Outlet Devices 1 Primary 953.00' 21.0" x 20.0' long Culvert RCP, end -section conforming to fill, Ke= 0.500 Outlet Invert= 952.70' S=0.0150'/' n=0.013 Cc= 0.900 Primary OutFlow Max=0.01 cfs @ 20.00 hrs HW=953.03' (Free Discharge) t--1 =Culvert (Barrel Controls 0.01 cfs @ 0.8 fps) Galpin Crossing Twinhomes Type// 24 -hr 2Year Rainfall=1.15" Prepared by RYAN ENGINEERING, INC. Page 8 HydroCAD® 7.00 s/n 001971 © 1986-2003 Applied Microcomputer Systems 3/17/2006 0.02, Pond 3P: Pond Hydrograph — Inflow Pnmary Inflow Area=11.620 ac Peak Elev=953.03' 00.017 016 Storage=0.012 of 0.01621.0" m 0.0155 x 20.0' Culvert 0.014 0.013 u 0.012 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Galpin Crossing Twinhomes Type 11 24 -hr 10 Year Rainfall=3.68" Prepared by RYAN ENGINEERING, INC. Page 9 HydroCAD@ 7.00 s/n 001971 @ 1986-2003 Applied Microcomputer Systems 3/17/2006 Subcatchment 1S: Ex. No. Side Runoff = 4.68 cfs @ 12.09 hrs, Volume= 0.289 af, Depth= 0.95' Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 10 Year Rainfall=3.68" Area (ac) CN Description 3.650 69 50-75% Grass cover, Fair, HSG B Tc Length Description 15.0 Direct Entry, Direct Subcatchment 1S: Ex. No. Side Hydrograph — Runoff Type II 24 -hr 10 Year Rainfall=3.68" Runoff Area=3.650 ac Runoff Volume=0.289 of Runoff Depth=0.95" Tc=15.0 min CN=69 5... _F 7 A a in i, 19 iq is is is 1,7 ..19 .. .i4 Time (hours) Galpin Crossing Twinhomes Prepared by RYAN ENGINEERING, INC. HydroCAD® 7.00 s/n 001971 © 1986-2003 Ap Type 11 24 -hr 10 Year Rainfall=3.68" Page 10 Vo...o 4 /171W)OCZ Subcatchment 2S: Ex.South Side Runoff = 10.22 cfs @ 12.09 hrs, Volume= 0.631 af, Depth= 0.95' Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 10 Year Rainfall=3.68" Area (ac) CN Description 7.970 69 50-75% Grass cover, Fair, HSG B Tc Length Slope Velocity Capacity Description rminl /fncf\ /ff/ff\ /f+/cun\ lnfc\ 15.0 Direct Entry, Direct Subcatchment 2S: Ex.South Side Hydrograph 11 10.22 cls 0 Type II 24 -hr 10 Year 9 Rainfall=3.68" 6 Runoff Area=7.970 ac Runoff Volume=0.631 of Runoff Depth=0.95" 5 Tc=15.0 min 4 CN=69 3 2 1 0 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 Time (hours) — RunOR Galpin Crossing Twinhomes Prepared by RYAN ENGINEERING, INC. Type 11 24 -hr 10 Year Rainfall=3.68" Page 11 Subcatchment 3S: Proposed to Pond Runoff = 5.93 cfs @ 12.08 hrs, Volume= 0.357 af, Depth= 1.18" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 10 Year Rainfall=3.68" Area (ac) CN Description 2.510 61 >75% Grass cover, Good, HSG B 1.140 98 Paved parking & roofs 3.650 73 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Direct Subcatchment 3S: Proposed to Pond Hydrograph 6 5.93 cfs Type II 24 -hr 10 Year 5 Rainfall=3.68" Runoff Area=3.650 ac 4 Runoff Volume=0.357 of 3 Runoff Depth=1.18" Tc=15.0 min 2 CN=73 1 01 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) —Runoff Galpin Crossing Twinhomes Prepared by RYAN ENGINEERING, INC. Type 11 24 -hr 10 Year Rainfall=3.68" Page 12 Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 956.05'@ 12.33 hrs Surf.Area= 17,178 sf Storage= 8,051 cf Plug -Flow detention time=40.9 min calculated for 0.616 of (98% of inflow) Center -of -Mass det. time= 32.4 min ( 852.6 - 820.2 ) # Invert Avail.Storage Pond 2P: Ex. So.Side Low Area Inflow Area = 7.970 ac, Inflow Depth = 0.95" for 10 Year event Inflow = 10.22 cfs @ 12.09 hrs, Volume= 0.631 of Outflow = 3.58 cfs @ 12.33 hrs, Volume= 0.616 af, Atten= 65%, Lag= 14.8 min Primary = 3.58 cfs @ 12.33 hrs, Volume= 0.616 of Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 956.05'@ 12.33 hrs Surf.Area= 17,178 sf Storage= 8,051 cf Plug -Flow detention time=40.9 min calculated for 0.616 of (98% of inflow) Center -of -Mass det. time= 32.4 min ( 852.6 - 820.2 ) # Invert Avail.Storage Storage Description 1 955.20' 187,404 cf Custom Stage Data (Prismatic)Listed below Elevation Surf.Area Inc.Store Cum.Store (feet) (sq -ft) (cubic -feet) (cubic -feet) 955.20 0 0 0 956.00 16,466 6,586 6,586 958.00 47,655 64,120 70,707 960.00 69,043 116,697 187,404 # Routing Invert Outlet Devices 1 Primary 954.90' 27.0" x 95.0' long Culvert RCP, end -section conforming to fill, Ke= 0.500 Outlet Invert= 954.90' S=0.0000'/' n=0.013 Cc= 0.900 Primary OutFlow Max=3.58 cfs @ 12.33 hrs HW=956.05' (Free Discharge) L1=Culvert (Barrel Controls 3.58 cfs @ 2.6 fps) Galpin Crossing Twinhomes Prepared by RYAN ENGINEERING, INC. HydroCAD® 7.00 s/n 001971 © 1986-2003 Ap Type 1124 -hr 10 Year Rainfall=3.68" Page 13 Pond 2P: Ex. So.Side Low Area Hydrograph Inflow Pnmary Inflow Area=7.970 ac Peak Elev=956.05' Storage=8,051 cf 27.0" x 95.0' Culvert 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Galpin Crossing Twinhomes Prepared by RYAN ENGINEERING, INC. HydroCAD@ 7.00 s/n 001971 © 1986-2003 Applied Type 11 24 -hr 10 Year Rainfall=3.68" Page 14 Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 953.78'@ 12.96 hrs Surf.Area= 0.246 ac Storage= 0.316 of Plug -Flow detention time= 96.1 min calculated for 0.852 of (88% of inflow) Center -of -Mass det. time= 57.6 min ( 895.2 - 837.5 ) # Invert Avail.Storage Pond 3P: Pond Inflow Area = 11.620 ac, Inflow Depth = 1.01" for 10 Year event Inflow = 8.44 cfs @ 12.13 hrs, Volume= 0.974 of Outflow = 2.85 cfs @ 12.96 hrs, Volume= 0.852 af, Atten= 66%, Lag= 50.1 min Primary = 2.85 cfs @ 12.96 hrs, Volume= 0.852 of Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 953.78'@ 12.96 hrs Surf.Area= 0.246 ac Storage= 0.316 of Plug -Flow detention time= 96.1 min calculated for 0.852 of (88% of inflow) Center -of -Mass det. time= 57.6 min ( 895.2 - 837.5 ) # Invert Avail.Storage Storage Description 1 953.00' 0.685 of Custom Stage Data (Prismatic�isted below Elevation Surf.Area Inc.Store Cum.Store _ (feet) (acres) (acre-feet) (acre-feet) 953.00 0.690 0.000 0.000 954.00 0.120 0.405 0.405 956.00 0.160 0.280 0.685 # Routing Invert Outlet Devices 1 Primary 953.00' 21.0" x 20.0' long Culvert RCP, end -section conforming to fill, Ke= 0.500 Outlet Invert= 952.70' S= 0.0150'P n=0.013 Cc= 0.900 Primary OutFlow Max=2.85 cfs @ 12.96 hrs HW=953.78' (Free Discharge) t1=Culvert (Barrel Controls 2.85 cfs @ 4.1 fps) Galpin Crossing Twinhomes Prepared by RYAN ENGINEERING, INC. HydroCAD® 7.00 s/n 001971 ©1986-2003 Ap Pond 3P: Pond Hydrograph Type 1124 -hr 10 Year Rainfall=3.68" Page 15 9 8.44 cfs 8 Inflow Area=11.620 ac Peak Elev=953.78' Storage=0.316 of 5 21.011 x 20.0' Culvert 4- 3- 2.85 cfs 2- 1 0 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 rime (hours) nflow Pnmary Galpin Crossing Twinhomes Prepared by RYAN ENGINEERING, INC. Type 1124 -hr 100 Year Rainfall=5.72" Page 16 Subcatchment 1S: Ex. No. Side Runoff = 11.60 cfs @ 12.08 hrs, Volume= 0.692 af, Depth= 2.28" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 Year Rainfall=5.72" Area (ac) CN Description 3.650 69 50-75% Grass cover, Fair, HSG B Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Direct Subcatchment 1S: Ex. No. Side Hydrograph — RunoH Type II 24 -hr 100 Year Rainfall=5.72" Runoff Area=3.650 ac Runoff Volume=0.692 of Runoff Depth=2.28" Tc=15.0 min CN=69 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2 Time (hours) Galpin Crossing Twinhomes Type // 24 -hr 100 Year Rainfall=5.72" Prepared by RYAN ENGINEERING, INC. Page 17 HydroCAD@ 7.00 s/n 001971 @ 1986-2003 Applied Microcomputer Systems 3/17/2006 Subcatchment 2S: Ex.South Side Runoff = 25.34 cfs @ 12.08 hrs, Volume= 1.511 af, Depth= 2.28" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 Year Rainfall=5.72" Area (ac) CN Description 7.970 69 50-75% Grass cover, Fair, HSG B Tc Length Description 15.0 Direct Entry, Direct Subcatchment 2S: Ex.South Side Hydrograph — Runoff Type II 24 -hr 100 Year Rainfall=5.72" Runoff Area=7.970 ac Runoff Volume=1.511 of Runoff Depth=2.28" Tc=15.0 min CN=69 F ] R 4 10 11 19 13 1d 15 16 17 Time (hours) Galpin Crossing Twinhomes Type 11 24 -hr 100 Year Rainfall=5.72" Prepared by RYAN ENGINEERING, INC. Page 18 HydroCAD(D7.00 s/n 001971 @ 1986-2003 Applied Microcomputer Systems 3/17/2006 Subcatchment 3S: Proposed to Pond Runoff = 13.39 cfs @ 12.07 hrs, Volume= 0.798 af, Depth= 2.62" Runoff by SCS TR -20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 Year Rainfall=5.72" Area (ac) CN Description 2.510 61 >75% Grass cover, Good, HSG B 1.140 98 Paved parking & roofs 3.650 73 Weighted Average Tc Length min) (feet) 15.0 13 12 11 10 5 6 7 Velocity Capacity Description Direct Entry, Direct Subcatchment 3S: Proposed to Pond Hydrograph Type II 24 -hr 100 Year Rainfall=5.72" Runoff Area=3.650 ac Runoff Volume=0.798 of Runoff Depth=2.62" Tc=15.0 min CN=73 8 9 10 11 12 13 14 15 16 17 18 19 Time (hours) — Runofl Galpin Crossing Twinhomes Type 11 24 -hr 100 Year Rainfall=5.72" Prepared by RYAN ENGINEERING, INC. Page 19 HydroCAD@ 7.00 s/n 001971 @ 1986-2003 Applied Microcomputer Systems 3/17/2006 Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 956.53'@ 12.36 hrs Surf.Area= 24,674 sf Storage= 23,462 cf Plug -Flow detention time=46.4 min calculated for 1.470 of (97% of inflow) Center -of -Mass det. time= 37.3 min ( 839.2 - 801.9 ) # Invert Avail.Storage Pond 2P: Ex. So.Side Low Area Inflow Area = 7.970 ac, Inflow Depth = 2.28" for 100 Year event Inflow = 25.34 cfs @ 12.08 hrs, Volume= 1.511 of Outflow = 7.20 cfs @ 12.36 hrs, Volume= 1.475 af, Atten= 72%, Lag= 17.3 min Primary = 7.20 cfs @ 12.36 hrs, Volume= 1.475 of Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 956.53'@ 12.36 hrs Surf.Area= 24,674 sf Storage= 23,462 cf Plug -Flow detention time=46.4 min calculated for 1.470 of (97% of inflow) Center -of -Mass det. time= 37.3 min ( 839.2 - 801.9 ) # Invert Avail.Storage Storage Description 1 955.20' 187,404 cf Custom Stage Data (Prismatic)_isted below Elevation Surf.Area Inc.Store Cum.Store (feet) (sq -ft) (cubic -feet) (cubic -feet) 955.20 0 0 0 956.00 16,466 6,586 6,586 958.00 47,655 64,120 70,707 960.00 69,043 116,697 187,404 Invert Outlet Devices 1 Primary 954.90' 27.0" x 95.0' long Culvert RCP, end -section conforming to fill, Ke= 0.500 Outlet Invert= 954.90' S=0.0000'/' n=0.013 Cc= 0.900 Primary OutFlow Max=7.19 cfs @ 12.36 hrs HW=956.53' (Free Discharge) 't-1 =Culvert (Barrel Controls 7.19 cfs @ 3.3 fps) Galpin Crossing Twinhomes Type 11 24 -hr 100 Year Rainfall=5.72" Prepared by RYAN ENGINEERING, INC. Page 20 HydroCAD® 7.00 s/n 001971 © 1986-2003 Applied Microcomputer Systems 3/17/2006 Pond 2P: Ex. So.Side Low Area Hydrograph — Inflow Primary 241 A Inflow Area=7.970 ac 20 Peak Elev=956.53' 6 Storage=23,462 cf 14 27.0" x 95.0' Culvert O LL .n 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Galpin Crossing Twinhomes Prepared by RYAN ENGINEERING, INC. HydroCAD® 7.00 s/n 001971 @ 1986-2003 Ap Pond 3P: Pond Type 11 24 -hr 100 Year Rainfall=5.72" Page 21 Inflow Area = 11.620 ac, Inflow Depth = 2.35" for 100 Year event Inflow = 18.42 cfs @ 12.09 hrs, Volume= 2.273 of Outflow = 9.85 cfs @ 12.46 hrs, Volume= 2.108 af, Atten= 47%, Lag= 21.8 min Primary = 9.85 cfs @ 12.46 hrs, Volume= 2.108 of Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 954.71'@ 12.46 hrs Surf.Area= 0.134 ac Storage= 0.505 of Plug -Flow detention time= 63.7 min calculated for 2.101 of (92% of inflow) Center -of -Mass det. time=40.0 min ( 863.7 - 823.7 ) # Invert Avail.Storage Storage Description 1 953.00' 0.685 of Custom Stage Data (Prismaticyisted below Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 953.00 0.690 0.000 0.000 954.00 0.120 0.405 0.405 956.00 0.160 0.280 0.685 Invert Outlet Devices 1 Primary 953.00' 21.0" x 20.0' long Culvert RCP, end -section conforming to fill, Ke= 0.500 Outlet Invert= 952.70' S=0.0150'/' n=0.013 Cc= 0.900 Primary OutFlow Max=9.84 cfs @ 12.46 hrs HW=954.71' (Free Discharge) t1=Culvert (Barrel Controls 9.84 cfs @ 5.2 fps) Galpin Crossing Twinhomes Type 1124 -hr 100 Year Rainfall=5.72" Prepared by RYAN ENGINEERING, INC. Page 22 HydroCAD® 7.00 s/n 001971 © 1986-2003 Applied Microcomputer Systems 3/17/2006 iK Pond 3P: Pond Hydrograph Inflow Area=11.620 ac Peak Elev=954.71' Storage=0.505 of 21.0" x 20.0' Culvert 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) — Inflow Pnmary co zw u gg di_`i Z� r (7017 CSF m�A as ZfAU Z—Qc t0 �Itib (z1 adnx rm� g WY f �pzQ crcr Yi `w"g E iE}}i WQQ< $ � I I— — 11 / 1 I I P. v ``\ a\��99 I rt . r// I II � 81 I 1l I 1 1 i I II \1 1 a: to lig a-o� � I I— — 11 / 1 I I P. v ``\ a\��99 I 0. °nFx.. 7 BLUFF CREf OUTLOT F ^ ✓/bUA A / r BLOCK O N E � I 13 A6 WESr 78 B_ a < F, 2 i` f / PARCEL A TOTAL AREA - 3.65 AC PERVIOUSAC MPEIIOUSUS SURFACE -� 2.51 AC u�p rtxYFn xq�. WS45f s�ww —Vn— 6 'xA Rya 9 NIO RlROPMfryf S[MCFS 4A° Wu BIrM E°°N°bI. MN SS:gI (i52) 86}5LW F CREEK..M�� ,...,., 1 GALPIN _ CROSSING TWNHOMES d / for M°EPIC F� i°0F°0 AGSn LOT 1 X PROPOSED DRAINAGE AREAS ° D-2 0 2005 RYM! EN) EERW_ NC. `_ BLUFF CREEK / UFF i / � � �! � CREEK __ / / / / / \\\\\ \\ \4 \ // / ! I / �zs xm.0 1� \ / \\ `\ / / // Wen. PARCEL A ,A I \ \\\ 1\ DRAINAGE TO NQR III Ii° ' 3.65 AC / / /�� _ --%• _ '--' �--_ / / 1\ Ill 11 Mill 11 1 x� \� 11 11rli 11 t a�ii II 1 / PA�CEIL \BI , '✓S 47 OfAJ NAC TO CUL ERT — - — // 7.97 AC \ / / 1• I ' 1 1 h LEGEND DIG �mgn Smit -Y5 --4-- SANITARY SEWER WATER — — I — — WATER NTD. W/VALW: —1-4 RW7. W/VALVC STp SEWER — —GC— — SWIM SEWER �'I a so' Izo' 111ea Rya Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 awwrv� s 6, w., Wai m d o k. .. aM WI Ian . u, si�w we u. e..an. GALPIN CROSSING TWINHOMES Chanhassen, MN for MEP P *Ct A DiyTd D.o.:'v ne,.. gelPh-c..RWiyouLcIng &ey n By MAS a EWN ,ate k25 For: Dots SCI Wbc Ddb C.� m P EXISTING CONDITIONS DRAINAGE AREAS D-1 0 200e MAN E KN*3EFINq INC. I — OUTLOT F OUTLOT A r BLOCK ONE IPOND It �.\ \ a;: 9 � � 6 Of WEST 78 I o — n « Y 4 < ' I , 1 ��4t•' , 3 « 2 i A< / g' / Wv / PARCEL A ' .;r LOT i TOTAL AREA = 3.65 AC PERVIOUS SURFACE = 1.14 AC IMPERVIOUS SURFACE = 2.51 AC I` X . ore ,g I SWnitay Sew —4— — SANITARY SEWER WATER — I — — WATER HYO. W/VAVE —I— � HYD. W/VALVE 0. W. Im 15 STORM SEWER —RO— STORY SEWER Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Ezcekiw. MN 55331 (952) 380-5000 .nWvryN W.Wnd..wirp cvn I '.W," W R W� .Tsl ve RV Whm.a Ws mT a'c' Wamavi .a as I rn . uT moa.a r�H. Wa. nW an a u. style a nnea. GALPIN CROSSING TWINHOMES for al E cE a*a Au 0/ d! P -o Nan' p'm B MAS LTMM By PIH Lbr' a'Hs:ons� Wa�aa For Date S&mn,W DOOM DOW De"Mment PreFhwy ReNaw FpW Be iew Bd*g carwhIctm PROPOSED DRAINAGE AREAS NIP D-2 nary Plans For GALPIN CROSSING TWI Chanhassen, Minnesota CITY R CHANHASSfvN RECEII, DEVELOPER. 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CITY OF RECEIVE4 SEN APR 1 9 2006 CHANHASSEN PLANNING DEPT 0' 50 100' 15C Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952)380-5000 ...ry...ty ..'1Pq mt Altar a.1lr Na Ne M w3albl ta•1 a ENo•.a 6'. . aer M &PA S.® And .M 1. a 61} qA�CAP .,ls V bs w Yw GALPIN CROSSING TWINHOMES Chanhassen, SIN for MEPIC Praerf Na Issued Fon Dale:_ athematic Oeagt ___ y Re1 Pr RWI ReAew BKWQ Combvcbon Preliminary Buffer Yard Planting Plan P.pe M ♦ ®. \` �\ � �• A. \ ` ♦� / 12 11 ti &WrlUS AA 0 WEST 78 aT�F►� NOM& 8A D V KMT AVµ W. A pEiQBpCR WWRWS 8[ wai TO 91 MX M AaaV M SIIE SA,, ,TA V WT PNNIX WFPWH iAlY1 M OT (r lNRyy[. 111E 1REE5 RNIIEO iE 8E 8ASE0 1MlV AVMARItt N 1E SONIL Ir yEpt Al NAOI I.E A qIN 914E BF plelAirEO. 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CITY OF CHANHASSEN RECEIVED MAR 3 0 2006 CHANHASSEN PLANNING DEPT e iminary Plans For GALPIN CROSSING TWINHO E Chanhassen, Minnesota DEVELDPER: CIVI ENGINEER: MEPIC 1-0 M ya CEKLOPMENi, LLC Engineering sere n 9820 Sky Lane Eden Prairie, MN 55347 (612) 730-2814 � ,MNLake BSSSU a4�Pyr IG ..... (952) 380-5000 REVISED 3 27/06 (952) 380-5010 (Fu) #YDEX d SIIEEI NO OESLRIPpLW P-1 COKR SHEET EXISIINL LONOIILQVS P-2 PRELIMINARY PLAT T P-J P-JA PRELIMINARY GRACING h SNPP PLAN PRELIM StERM WATR P%LUV0. 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F 0 aw I WZ § rfli 1;�i Z o m cd zm0 -Jog EL m\^ Y \\ P! 0 m\^ Y R S700: Yngineering LAND DEVELOPMENT SERVICES March 30, 2006 Mr. Robert Generous City of Chanhassen — Planning Division 7700 Market Boulevard PO Box 147 Chanhassen, MN 55317 Phone: 952-227-1100 CITY OF CHANHASSEN RECEIVED MAR 3 0 2006 CHANHASSEN PLANNING DEPT Re: Galpin Crossing Twinhomes, Chanhassen, MN Planning Case No. 06-13 Dear Mr. Generous, 434 Lake Street Excelsior, MN 55331 Tel 952-380.5000 Fax 952-380-5010 www.ryanengineering.com On behalf of Epic Development, we have received your letter dated March 21, 2006 regarding the 3/17/2006 submittal of documents for approval of the Galpin Crossing Twinhome project. We are submitting 16 full size drawings and 1 reduced size (11x17) that reflect revisions that were required to be made. Below, we have summarized explanations, revisions and attachments that are being submitted to fully address your letter. 1.) Tonography beyond 100' of Boundary: We have revised the grading plan to include topography 100' beyond the north boundary. We have also included the building footprints of the existing twinhomes that exist west of western boundary. 2.) Westerly Perimeter Setback: Based on the Concept PUD Approval on 12/12/05, the site was laid out according to the Design Development Standards that stated the west perimeter building setback is to be 30 feet. Furthermore, this 30 foot setback seems appropriate due to the fact that the adjacent twinhomes are of similar land use. There also an existing stormwater treatment pond that is approximately 65 feet wide that lies between the existing twinhomes and westerly boundary line. The distance between the existing and proposed twinhomes would be about 140 feet at the narrowest point. There are also spruce and pine trees proposed to be planted along the western boundary to provide screening as part of project reforestation. With the proposed spacing between existing and proposed buildings and proposed screening along the western boundary, the 30 foot setback should be more than adequate. 3.) Landscape Plan: We have revised the plans to include a plant schedule listing quantity and size and species of trees to be planted as re -forestation. We have also revised the plans by adding sheet 6 that includes a listing of buffer yard requirement with plant schedule and planting locations shown on the plan. From our telephone conversation with you on 3/24/06, we have used the "buffer yard B" requirements that would provide screening along W.780' Street. 4.) Pond Calculations: We have made minor adjustments to the hydraulic computations per the direction of engineering staff. We also revised the configuration of the pond. We have attached a revised preliminary stormwater management summary along with drainage calculations for staff review. 5.) Soils Data: We would greatly appreciate the opportunity to review any soils data the city may have on this site. We were not aware that the city was in possession of any soils data that may be useful to this site. 6.) Digital Data: We have attached electronic documentation in Tiff Format as requested. 7.) Variance Justification: The variance requested is for the private drive to serve the proposed twinhomes. There are several points of justification that can be made for the variance request. a. The private drive will provide one point of access onto West 78th street to serve all of the proposed units versus individual access points for each of the proposed units. b. The site is uniquely and significantly constrained to the north by the existence of the Bluff Creek Primary Corridor and the existing wetland. The proposed design allows extremely low housing density while maintaining no impact to the existing wetland and the creek corridor as well as no impact to newly established buffers around the wetland. c. Allows consistent land use with the adjacent twinhomes to the west. d. The proposed private drive is consistent with the approved PUD concept approval development design standards such that it contains a cul-de-sac that meets city standards (91 foot radius) so that a fire truck may tum around. With submission of this information we request that city move forward with the review and approval process of this application. If you have any questions or need of further information, please contact us as soon as possible. Respectfully Submitted, RYAN ENGINEERING, INC. Mark A. Scholle, P.E. Engineering Manager Enclosures Cc: Mr. Rich Ragatz — Epic Development Bulldlnq 4,^ and dinxndons drown are b, grapMc purposes unry aixl are wElni m donge Pk,. — Ilnal aPPwveal Jrawliyp br Gblla. CONVENIENCE STORE alpin-�� ROBBING I RFan Engineering LAND DEVELOPMENT SERVICES -EPIC DEVELOPMENT, LLC EETHWA INC. n d OUTLOT F 7 /M' BLDG. S/B WEST PROP RT 5 � I BLUFF CREEK:_:: SM NH II ss E" 0'J TLOASE� A I ( SS C WETLAND BASIN N0. 3 40' OFFSET FROM I — WL _ _ PRIMARY CORRIDOR / WL, UNE �W< _ I WL—L 16.5'I I�IM. Y3C1.O1 •' ��___- _WL J ,� I i IHIYYYYLL 950 _50' SETBACK CONCEPT LAYOUT (Approved late 2005) FROM O.H.W.L. �--RE;� P OPIR YFR ZPRELIMINARY PLAN LAYOUT (Conforms to City's PUD standards for this project) � SS Eq SE R BLOCK ON / 1 - 7 I \ 5 -MM T. 960. SS •� �_ .. SRF. �.. / / O-PaRaaT`N�TT 12 PHENT UNDO _TT A AU EAMEN SS fqS f 50' BLOC. 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W -7 131N ST. W HWY. 5 HWY. 5 m C0VL�ER Z (21 BLVD z a m J 0 W N a a S C� O O 3 0.' NORM F VICINTY WAP NOT TO SCALE DEVELOPER: CIVIL ENGINEER: %IEPIC DEVELOPMENT, LLC 9820 Sky Lane Eden Prairie, MN 55347 (612) 730-2814 a:00007 9!n Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 (952) 380-5010 (Fax) www.ryanengineering.com CITY OF RECEIVEDSSEN APR 1 9 2006 CHAWASSEN PUNNING DEPT GAL PIN CROSSING REVISED 4/19/06 11 ) 2006 RYAN ENGINEERING, INC. S80-111 4 7"E S87'11'47"E B� (JFF CREE — K— .. —BC ;B— ..----��.. 9'17'47„E 1 BE 12 EL +2 U 6 EL 8 BE ,Q BE 14 e I I T I T �_– 5 MH BE ,. BE 14 --_� OV 1 L_ 0 /� N Top= .79 _ BE a BE, BE ,e PSE o Inv=�943.2t –sS n,2 � 4j'E SS �. 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Ft. \\ ��+ i 1416 c BE ,o ms's r 1 (6.097 Acres) \ e 'o O. _V 5 Ss FgSF BA Cb 60 _ x,62 4 BITUMINOUS pgTH B R 9 5g 16" /s1 NVIM57 WEST 1 Q A / \ / R= 6 I= 7�+� "RIM=962.20\ Jc< 27^ 5� \ INV=956.12 � � � � � -�' -- \� RCP 012 1001Sg A1r '0 FES / �� \e / aR4 NgCc EAs_,M Nr� IE=954 0 L� / JPS, n` 5 � / FE 54.9 Q RIM=960.57 / �� INV=950.¢rg Q RI,M=960.57 !NV=951!55 / uJ�/ LEGEND OUTLET=949.,30 I Sanitary Sewer 4 — — WATER HYD. W/VALVE STORM SEWER WETLAND Id BLUFF CREEK — — —BCPC— — — PRIMARY CORRIDOR BOUNDARY PROPOSED SANITARY SEWER —4 WATER — HYD. W/VALVE STORM SEWER —44— RIM=963.68' INV=959.83 / J I IVY5 .�c j \ / /CONVENIENCE STORE 1ST FL. ELEV.=967.25/ LOT 1 L � �J 0' 50' 100' 150' R7 anr Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. Date GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No. Digital Drawing Nome 9elph-tnrinhomee-prelim-5.dwg Drawn By GILG Checked By PMR Dote 3/16/06 Revisions 3/27/06 Per City Review Commente Issued For: _ _ Date: Schematic Design Design Development Preliminary Review Final Review Bidding Construction Existing Conditions Page P-1 , 2006 RYAN ENGINEERING, INC. OUTLOT F OWNER: RALPH PAMPERIN & BARBARA ELSE 7719 VASSERMAN TRAIL / CHANHASSEN, MN 55317 9 LEGEND LAWRENCE & MICHAELE I 7725 VASSERMAN TRAIL CHANHASSEN, MN 55317 580'1 7,4 7" j 77 77, E OWNER _ THEODORE & MARLENE BENTZ _ S87'11'47"E 7,300 GALPIN BLVD. 100.40 EXCELSIOR, MN 55331 i --� — 579.11'47" �1g4.14 E o , --SS EASE_ 18`7 E �—SS EASE t EASE ---_j' Sgi. SEP OUTLOT E �s �. 03 , A 9? ,'ASE _ \SS e \FNB 74.98 SSB, As �' 71,F�� S89'56'47"E 13 �Z \ \ of .72' O 54' �? G 5a �gl qg' 45' p 64. y \ P 6.01 \ PERMANENT MNDOT_ SS / 0 ti `y. 45 �` SS DRAMAGE EASEMENT �t 12 co q £ C Co I W \ \ 22F\ PERMANENT MN00T_ n> 1 n "' W 5' AGE EASEMENT \ 8 � t ER: ' CHARLES &GAIL GAUNO 7729 VASSERMAN TRAIL i CHANHASSEN, MN 553,y7--, 7 ER: DIANE ERICKSON, TRUSTEE 7735 VASSERMAN TRAIL CD CHANHASSEN, MN 55317 6 _ IV OWNER: J ROBERT & GABRIELLE GRIFFITH 7739 VASSERMAN TRAIL CHANHASSEN, MN 55317 L Q V JAMES & AMELIA CHMURA 7745 VASSERMAN TRAIL W 4 CHANHASSEN, MN 55317 OWNER. THOMAS & HELLEN ERNST \/ 3 7749 VASSERMAN TRAIL CHANHASSEN, MN 55317�� OWNER: 2 GERALD & PEGGY WOLFE 7755 VASSERMAN TRAIL CHANHASSEN, MN 55317 OWNER: MICHAEL & CAROL YN SHIELDS 7759 VASSERMAN TRAIL , CHANHASSEN, MN 55317z M o z / o rn u, Sanitary Sewer —4 — — SANITARY SEINER —4 WATER — -- — WATER — HYD. W/VALVE -! — 'r? HYD. W/VALVE --- I---- *} STORM SEWER -- <" -- STORM SEWER WETLAND -- BLUFF CREEK ---BCPC--- PRIMARY CORRIDOR BOUNDARY Iq•� 45'7 �"" q5 PRSND (EN7/RE LOT 13) cs. SEM L ,11-0 0 R�'35a' 16„ 45' ' p-59 WEST 78 // 83' 1 / lee, \ 01 n OWNER: OSP �N EPIC DEVELOPMENT XVI, LLC / 9820 SKY LANE / \N / EDEN PRAIRIE, MN 55347 \ \� / \ Dc'\ / aq) / DEVELOPMENT DATA LOT AREA DATA ZONING: EXISTING ZONING Agriculctural SINGLE FAM. DEVELOPMENT AREA 6.101 +/— AC / PROPOSED ZONING: Planned Unit Development CITY LAND USE PLAN: Residential (1.2-4 Units/Acre) PROPOSED LAND USE: 2.0 Units/Acre LOT NUMBER AREA S.F. LEGAL DESCRIPTION BLOCK 1 1 3,735± 2 3, 735± 3 3, 330±4 WRITTEN DESCRIP LION TO BE SUBMITTED. 3, 330± 5 3,735± 5 3,7,35.± DEVELOPER: 7 3,735± 3, 735± EPIC DEVELOPMENT XVI, LLC 3, 735± 9820 SKY LANE EDEN PRAIRIE, MN 55347 1 10 3, 735± 11 3,735± 12 3,735± 13 120,778± OUTLOT A 100,807± Total BLOCK 1 265,595± Avg. Lot Area 3,668± Total Plat Area 265,5951 CT C) rA o�^ ry ci M0) I OWNER: I KLINGELHUTZ DEVELOPMENT 350 HWY 212 E, PO BOX 89 I CHASKA, MN 55318 \ \ OWNER: \ \ CITY OF CHANHASSEN \ PO BOX 147 \ CHANHASSEN, MN 55317 0' 50' 100' - Rya n Engineering LAND DEVELOPMENT SEHVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering.com I hereby certify that this pan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engined under the laws of the State of Minnesota. Signature Registration No. Date GALPIN CROSSING TWINHOMES Chanhassen, MN for EPIC DEVELOPMENT, LLC Project No. Digitcl Drawing Nome galpin-Wnhomes-prelim-5, ft Drown By GLG Checked By PMR Date 3/16/06 Revisions 4/19/06 Per City Review Comments Issued For: Date: Schematic Design Design Development _ Preliminary Review Final Review Bidding Construction Preliminary Plat Page P-2 2006 RYAN ENGINEERING, INC i I , � _ f e�U RBE 15 QU L_ U , .n, PS�� o N —�� !_IS GIN + SSE �_ �! CASE --__\ r = i2f 2 �era:� lr.1 ,.zVO r 61 �� o C•v .9154 riS EAE > B OUTLO� E �yX 1 S5 - n i /l 7 A I r Wt I LAIVU tJH�)iPl INU- JH - t/POIq _ NWL 953.0OBE s.a . HWL 954.9 / / 9 - � _�� -A % a' "� �` a /PERM E oT ST -5 - Vim- \ J 0114" '�� / ` / DRAIN" ENT o16 /ST / IjvV=943 �5 956 - 2 S 957 9574'q _ ; / g57 12 q F\ �\ �S`\{�r` ,.�� l a` PERMANENT or rJ7 11 DRAINi�OE/iA ENT \ \ f 9 �\\ \ �` h. oo`'� 9 1 967 96 �` \ \ RI 96 0/ RIM' 963.68 I \ \ \ \\ 1 �� / 967 970 \ \ \\V 941. 8/ INV�959.83 / /^\\ 9so.10 , m \\ ST -2 --- ST -3 95� ' �8 ' g67 g67 972 974 \ ho\`\ �r y F 4 I I �c \ _1b�1 5 6 / 966 - _ —966 i { 0 / 3 I /1 6 \\ f rp / l '�� -f �ruM!No ' ----u= PnrH l8 �� = J_ ,` 1 { { { 968 968 CO 968 � ` p I I I } --� —8 q1PGo a 96S 5 / t RIM= 1 { 1 rn WEST INV= 457 ST -1 RIM=962.20 �7'�RCP% —<<�q• R� �— INV=956.12 w 6P 40 00 1 un$ \PPER , 1 DR 14 q 4NeNT / Fq 1 II{ { { { 964 9 ^ IV=958.79 0 21" RCP ®0.5% �e 4I 965.78 Va 9.27 j/ RIM=964-. � 1 � � � .� � � R / � ,� � r i � ✓ � INV=60.43 RIM q 6 68 INV-- 5 0 J / M ,8.2/ l 4 I i Al / FESS// -Z I / // IE 54.9 /� { I 1co a7 6 <il ,D LCI/ A �\\ \ a a ONVENIENCE STORE ' > RI 600713) I f ' \T FL ELEV=967.25/ 1 R6 LOT (40 LA 17 V �� LEGEND -- -- o 1� SOIL BORING __ dlLYf ET' EXISTING CONTOURS ST -2 WETLAND t ) 1 (BRAUN INTERTEC) 927 PROPOSED CONTOURS STING BLUFF CREEK C--- PRIMARY CORRIDOR BACK YARD ELEV. SANITARY SEWER—<— — BOUNDARY LO ��� ( ) SILT FENCE BASEMENT ELEV. (WO) WATER— i 11 25.0 GENERAL HOUSE PAD PREP. AREA EXISTING SPOT ELEVATION HYD. W/VALVE LO HOUSE TYPE 93.1 i Xg5 0 PROPOSED SPOT ELEVATION STORM SEWER Q4 27.0 GARAGE FLOOR ELEVATION PROPOSED 815.5 FINISHED FLOOR ELEVATION STORM SEWER .4406- 0, 50' 100' 150' Rya n Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. Date GALPIN CROSSING TWINHOMES Chanhassen, MN for . MEPIC DEVELOPMENT, LLC Project No. Digitcl Drawing Name galpn-twinhomes-preirm5.dwg Drawn By GLG Checked By PMR Dote 3/16/06 Revisions 3/27/06 Per City Review Canir>ents 4/19/06 Per City Review Corrrnente— ssued For: Date: 3chematic Design Design Development . 'reliminary Review _ sinal Review 3idding -onstruction Preliminary Gradin and S1 ?PP Plan 'age P-3 C' 2006 RYAN ENGINEERING, INC_ / I TO 2 INCH DIAMETER pOKO WASHED ROCK, MNOOT BASED ON MY INQUIRY OF THE PERSON OR PERSONS WHO MANAGE THE SYSTEM, OR THOSE PERSONS STANDARD SPECIFICATION BEST OF MY KNOWLEDGE AND BELIEF, TRUE, ACCURATE, AND COMPLETE. I AM AWARE THAT THERE ARE CA -3 / OR AL COARSEMRSE OREOUAL Q AGGREGATE DA TE.• ------------ CONTRACTOR'S CERTIFICATION O Q8n-O O NATIONAL POLLUTANT DISCHARGE ELIMINAT70N SYSTEM (NPDES) PERMIT THAT AUTORIZES THE STORM 12 INCH AS PART OF THIS CERTIFICATION. MINIMUM FOR THICKNESS Q SIGNED: --------------- CONTRACTOR GENERAL CONTRACTOR MI FOOT MINIMUM ADDRESS LENGTH Q CITY, STATE ZIP CODE "DOT STANDARD / PHONE NUMBER SPECIFICATION 3733 20 FOOT TYPE V PERMEABLE Who" GEOTIDmUE FABRIC WDTN MATERIAL BENEATH THE ROCK 24 INCH HIGH CUT-OFF BERM NOTE: ROCK CONSTRUCTION ENTRANCE SHOULD BE A MINIMUM HEIGHT OF 2.0' AND CONTAIN MAXIMUM SIDE SLOPES OF 4:1. ROCK CONSTRUCTION ENTRANCE GENERAL GRADING AND DRAINAGE NOTES CONTRACTOR SHALL CONTACT GOPHER STATE "ONE CALL" FOR UTILITY LOCATIONS AT 454-0002 THE CONTRACTOR SHALL VERIFY THE LOCAT70N AND ELEVATION OF EXISTING URL177ES AND TOPOGRAPHICAL FEATURES WITH THE OWNERS AND FIELD—VERIFY PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL IMMEDIATELY NOTIFY THE ENGINEER OF ANY DISCREPANCIES OR VARIATIONS. ALL CONTOURS AND SPOT ELEVATIONS ARE SHOWN TO FINISHED SURFACE/GUTTER GRADES UNLESS SHOWN OTHERWISE. REFER TO PAVING PLAN FOR DETAILED SPOT ELEVATIONS, GRADE PERCENTAGES, AND VERTICAL CURVE INFORMATION. ALL SILT FENCE SHALL BE IN PLACE PRIOR TO INITIATION OF EARTHWORK AND SHALL BE MAINTAINED UN77L VIABLE TURF OR GROUND COVER IS ESTABLISHED, AT WHICH TIME IT SHALL BE REMOVED. TEMPORARY PONDING, DIKES, HAYBALES, ETC., REQUIRED BY THE CITY SHALL BE INCIDENTAL TO THE GRADING. THE CONTRACTOR SHALL USE A ROCK CONSTRUCTION ENTRANCE ACCORDING TO THE DETAILS. ALL STREETS DISTURBED DURING WORKING HOURS MUST BE CLEANED AT THE END OF EACH WORKING DAY. GRAVEL & FILTER FABRIC SHALL BE INSTALLED PER DETAIL AT ALL CATCH BASINS (INCIDENTAL). THE CONTRACTOR SHALL INSURE POS177VE DRAINAGE IS MAINTANED FROM THE SITE AT ALL TIMES. CONTRACTOR SHALL BE RESPONSIBLE FOR TEMPORARY DITCHES, PIPING, OR OTHER MEANS REQUIRED TO INSURE PROPER DRAINAGE DURING CONSTRUCTION. LOW POINTS IN ROADWAYS OR BUILDING PADS MUST BE PROVIDED WITH A POSITIVE OUTFLOW. WITHIN 7 DAYS OF COMPLETION OF GRADING, ALL NEWLY GRADED SLOPES SHALL BE SEEDED, FERTILIZED AND MULCHED IN ACCORDANCE WITH THE CITY SPECIFICATIONS. SEED SHALL BE MIXTURE NO. 50A AT A RATE OF 75 POUNDS PER ACRE. MULCH MATERIAL SHALL BE TYPE 1 PLACED AT OF 2 TONS PER ACRE. ALL PONDS SHALL RECEIVE A WETLAND SEED MIXTURE NO. 25A ABOVE THE NMI PER CITY SPECIFICATIONS. ALL UPLAND AREAS DISTURBED AS A RESULT OF CONSTRUCTION ACTIVITIES SHALL BE IMMEDIATELY RESTORED WITH SEED AND DISC—MULCHED, COVERED WITH A WOOD—FIBER BLANKET OR SODDED WITHIN TWO WEEKS OF COMPLETION OF EACH ACTIVITY IN ACCORDANCE WITH THE CITY'S BEST MANAGEMENT PRACTICE HANDBOOK. BUILDING PAD HOLD DOWN SHALL BE 1'-0". ROADWAY HOLD DOWN SHALL BE PER DETAIL SHEET ALL LOTS WITHIN THIS DEVELOPMENT SHALL BE MASS GRADED. ALL GRADING SHOWN ON THE PLANS SHALL BE COMPLETED IN A SUBSEQUENT AND EXPED177OUS MANNER TO INSURE PROPER DRAINAGE AND FUNCTIONING OF PONDS. PHASING & TIMING OF THE POND CONSTRUCTION WILL BE COORDINATED WITH THE ENGINEER & CITY OFFICIALS TO INSURE ALL SAFEGAURDS ARE IN PLACE TO MINIMIZE EROSION. INLET PROTECTION SHALL BE "TYPE B" PER THE DETAIL SHEET AND SHALL BE MAINTAINED THROUGH CONSTRUC77ON PONDING AREAS ARE TO BE GRADED FIRST TO A DEPTH OF 6 INCHES ABOVE FINAL GRADE. TEMPORARY POND SEED MIXTURE SHALL BE 100A MODIFIED AT A RATE OF 25 POUNDS PER ACRE. MULCH PER ABOVE RATE. UPON COMPLETION OF MASS GRADING, THE PONDS SHALL BE EXCAVATED TO FINAL GRADES, THUS REMOVING ANY SEDIMENTATION DURING CONSTRUCTION AND ALLOWING PROPER INFILTRATION. INSTALL SEEDED, STAKED FIBER BLANKETS ON LONG OR STEEP SLOPES (3: 1 OR HIGHER) SEE GRADING PLAN, GENERAL AREAS HATCHED. JOIN SECTIONS WRAP POSTS AND TIE TOGETHER 2 INCH SQUARE HAROWOO PINE, OR STANDARD T- 0 U -SECTION STEEL POSTS. NOT EXCEED MAXIMUM P0: SPACING OF 4 FT. O.C. 30• N DIRECTION OF SURFACE FLOW USE LATH AND STAP TO ATTACH FABRIC TO 'MOOD POSTS. USE TIE WIRES TO ATTACH FABRIC TO STEEL POSTS, USE HOG RINGS TO ATTACH FABRIC TO WIRE MESH PERSPECTIVE VIEW FABRIC (ORAIMd W COLOR) REINFORCE WITH SNOW FENCE, WIRE MESH, OR STIFF PLASTIC FENCE IN AREAS WHERE CONCENTRATED FLOWS OCCUR (SUCH AS SWN.ES, DITCHES, AND IN FRONT OF CULVERTS AND CATCHBASMS) -LAY THE FABRIC AGAINST THE SIDES AND BOTTOM OF THE TRENCH. BACKFILL AND COMPACT WITH A Iff VIBRATORY PLATE COMPACTOR FABRIC IN SOIL ANCHOR SUPPORT POST SECTION IN SOIL VIEW TYPE 1 SILT FENCE DIVERSIONARY DIKE SWPPP N 0 TES 4' MINIMUM NOTE BOTTOM OF FABRIC IS --sl BURIED INTRENCH IT IS WHEN INSTALLED AS SILT FENCC E. MAXIMUU M DISTANCE BETWEEN POSTS IS 4'. AN ADDITIONAL POST MAY BE ADDED TO EACH SIDE. DROP INLET WITH GRATE STRAW BALES STAKED WITH 2 STAKES LN PER BALE COMPACTED SOIL TO PREVENT PIPING RUNOFF WATER WITH SEDIMENT IOOD OR METAL STAKE -24" TER FABRIC BALES STAKED 12" TO 24" FROM INLET STAKED STRAW BALE FILTERED WATER INLET ALL CONSTRUCTION ACTIVITIES TO BE IN ACCORDANCE WITH "CONSTRUCTION ACTIVITY REQUIREMENTS" AS DIRECTED IN PART IV, WHICH INCLUDE BUT ARE NOT LIMITED TO THE FOLLOWING: PIPE OUTLETS MUST BE PROVIDED WITH TEMPORARY OR PERMANENT ENERGY DISSIPATION WITHIN 24 HOURS OF CONNECTION TO A SURFACE WATER. SEDIMENT CONTROL PRACTICES MUST BE ESTABLISHED ON ALL DOWN GRADIENT PERIMETERS BEFORE ANY UP GRADIENT LAND DISTURBING PRACTICES BEGIN. THESE PRAC77CES SHALL REMAIN IN PLACE UNTIL FINAL STABILIZATION HAS BEEN ESTABLISHED IN ACCORDANCE WITH PART IV.G. ALL EXPOSED SOIL AREAS WITH A CON77NOUS POSITIVE SLOPE WITHIN 200 LINEAL FEET OF A SURFACE WATER, MUST HAVE TEMPORARY EROSION PROTECTION OR PERMANENT COVER FOR THE EXPOSED SOIL AREAS YEAR ROUND, ACCORDING TO THE FOLLOWING TABLE OF SLOPES AND TIME FRAMES.- TYPE RAMES: TYPE OF SLOPE I1ME (MAXIMUM 77ME AN AREA CAN REMAIN OPEN WHEN THE AREA STEEPER THAN 3: 1 7 DAYS IS NOT ACTIVELY BEING WORKED) 10: 1 TO 3.• 1 14 DAYS FLATTER THAN 10:1 21 DAYS THE TIMING OF THE INSTALLATION OF SEDIMENT CONTROL PRACTICES MAY BE ADJUSTED TO ACCOMODATE SHORT—TERM ACTIVITIES SUCH AS CLEARING OR GRUBBING, OR PASSAGE OF VEHICLES. ANY SHORT—TERM ACT70TY MUST BE COMPLETED AS QUICKLY AS POSSIBLE AND THE SEDIMENT CONTROL PRACTICES MUST BE INSTALLED IMMEDIIATLEY AFTER THE ACTIVITY IS COMPLETED. HOWEVER, SEDIMENT CONTROL PRACTICES MUST BE INSTALLED BEFORE THE NEXT PRECIPITATION EVENT EVEN IF THE ACTIVITY IS NOT COMPLETE ALL STORM DRAIN INLETS MUST BE PROTECTED BY APPROPRIATE BMPs DURING CONSTRUCTION UNTIL ALL SOURCES WITH POTENTIAL FOR DISCHARGING TO THE INLET HAVE BEEN STABILIZED. TEMPORARY SOIL STOCKPILES MUST HAVE SILT FENCE OR OTHER EFFECTIVE SEDIMENT CONTROLS, AND CANNOT BE PLACED IN SURFACE WATERS, INCLUDING STORM CONVEYANCES SUCH AS CURB AND GUTTER SYSTEMS, OR CONDUITS AND DITCHES. VEHICLE TRACKING OF SEDIMENT FROM THE CONSTRUC77ON SITE MUST BE MINIMIZED BY BMPs SUCH AS STONE PADS, CONCRETE OR STEEL WASH RACKS, OR EQUIVALENT SYSTEMS. STREET SWEEPING MUST BE USED IF SUCH BMPs ARE NOT ADEQUATE TO PREVENT SEDIMENT FROM BEING TRACKED ONTO THE STREET. THE CONTRACTOR IDENTIFIED IN THE SWPPP MUST ROU 77NELY INSPECT THE CONSTRUCTION SITE ONCE EVERY SEVEN (7) DAYS DURING AC77VE CONSTRUCTION AND WITHIN 24 HOURS AFTER A RAINFALL EVENT GREATER THAN 0.5 INCHES IN 24 HOURS. ALL INSPECTIONS AND MAINTENANCE CONDUCTED DURING CONSTRUCTION MUST BE RECORDED IN WRITING AND THESE RECORDS MUST BE RETAINED WITH THE SWPPP IN ACCORDANCE WITH PART IIID BY THE CONTRACTOR RECORDS OF EACH INSPEC77ON AND MAINTENANCE ACTIVITY SHALL INCLUDE, A. DATE AND TIME OF INSPECTIONS,- B. NSPECTIONS,B. NAME OF PERSON(S) CONDUCTING INSPECTIONS C. FINDINGS OF INSPECTIONS, INCLUDING RECOMMENDATIONS FOR CORRECTIVE ACTIONS D. CORREC77VE ACTIONS TAKEN (INCLUDING DATES, TIMES AND PARTY COMPLETING MAINTENANCE ACTIVITIES); E. DATE AND AMOUNT OF RAINFALL EVENTS GREATER THAN 1/2 INCH (0.5 INCHES) IN 24 HOURS; AND F. DOCUMENTATION OF CHANGES MADE TO THE SWPPP AS REQUIRED IN PART 11I.A.4. PROJECT TYPE- RESIDENTIAL DEVELOPMENT TOTAL SITE AREA: +/— 6.1 ACRES TOTAL DISTURBED AREA: +/— 3.3 ACRES FINAL RUNOFF COEFFICIENT.0.68 CATCH BASIN LA PONDING HEIGHT PLAN VIEW CURB INLET zi- SPILLWAY------ CATCH BASIN NOTE SECTION A — A 1, PLACE CURB TYPE SEDIMENT BARRIERS ON GENTLY SLOPING STREET SEGMENTS, WHERE WATER CAN POND AND ALLOW SEDIMENT TO SEPARATE FROM RUNOFF. 2. SANDBAGS, OF EITHER BURLAP OR WOVEN GEOTEXTILE FABRIC. ARE FILLED WITH GRAVEL, LAYERED AND PACKED TIGHTLY 3. LEAVE ONE SANDBAG GAP IN THE TOP ROW TO PROVIDE A SPILLWAY FOR OVERFLOW. 4, INSPECT BARRIERS AND REMOVE SEDIMENT AFTER EACH STORM EVENT. SEDIMENT AND GRAVEL MUST BE REMOVED FROM THE TRAVELED WAY IMMEDIATELY. Cl1RB INLET SED&WIT BARRIER POLLUTION PREVENTION PLAN CERTIFICATION I CERTIFY UNDER PENALTY OF LAW THAT THIS DOCUMENT AND ALL ATTACHNENTS WERE PREPARED UNDER MY DIRECTION OR SUPERVISION IN ACCORDANCE WITH A SYSTEM DESIGNED TO ASSURE THAT QUALIFIED PERSONNEL PROPERLY GATHERED AND EVALUATED THE INFORMAT70N SUBMITTED. BASED ON MY INQUIRY OF THE PERSON OR PERSONS WHO MANAGE THE SYSTEM, OR THOSE PERSONS DIRECTLY RESPONSIBLE FOR GATHERING THE INFORMATION, THE INFORMATION SUBMITTED IS, TO THE BEST OF MY KNOWLEDGE AND BELIEF, TRUE, ACCURATE, AND COMPLETE. I AM AWARE THAT THERE ARE SIGNIFICANT PENAL77ES FOR SUBMITT7NG FALSE INFORMATION, INCLUDING THE POSSIBILITY OF FINE AND IMPRISONMENT FOR KNOWN VIOLATIONS. SIGNED: ---------- ---------------- DEVELOPER CONTACT EPIC DEVELOPMENT XVI, LLC DA TE.• ------------ CONTRACTOR'S CERTIFICATION l CERTIFY UNDER PENALTY OF LAW THAT I UNDERSTAND THE TERMS AND CONDITIONS OF THE GENERAL NATIONAL POLLUTANT DISCHARGE ELIMINAT70N SYSTEM (NPDES) PERMIT THAT AUTORIZES THE STORM WATER DISCHARGES ASSOCIATED WITH INDUSTRIAL AC77VITY FROM THE CONSTRUCTION SITE IDENTIFIED AS PART OF THIS CERTIFICATION. SIGNATURE FOR RESPONSIBLE FOR SIGNED: --------------- CONTRACTOR GENERAL CONTRACTOR CONTRACTOR SIGNATURE ADDRESS CITY, STATE ZIP CODE PHONE NUMBER DA TE ------------ Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota Signature Registration No. Date GALPIN CROSSING TWINHOMES Chanhassen, MN for ME14C DEVELOPMENT, LLC Project No. Digital Drawing Nome galpin-twinhom_es-prelim-3.dwg Drown By GLG Checked By PMR Dote 3/16/06 Revisions Issued For:_ Date: _ Schematic Design Design Development Preliminary Review Final Review Bidding Construction PRELIMINARY STORM WATER POLLUTION PREVENTION PLAN Page P -3A (() 2006 RYAN ENGINEERING, INC. nUTI OT LJ � i v 30' BLDG WEST PR 0 i7XMFZ9#J STMH - RE= 956.5 IE= 953.1 OUTLET= / lel / rFLO EXISTING PROPOSED Sanitary Sewer 4- - SANITARY SEWER -4- WATER -- - - WATER - I HYD. W/VALVE -1-4 HYD. W/VALVE -1- STORM SEWER -<34-- STORM SEWER -N--- WETLAND - WL -- BLUFF CREEK - - -BCPC- - - PRIMARY CORRIDOR BOUNDARY - 71 F CREEK SMH To .2± hw�n7 + 79.=15 �o O U TLO T SS EASE__ i0' SETBACK ROM O. H.W.L 50' BLDG. SIB FROM REAR PROPERTY LINE - FF \ Mo SAN M 1 960. WETLAND BASIN N0. 3771 40' OFFSET FROM PRIMARY CORRIDOR B L O C K 0 NLINE / L 0 - wL I POND \ \ OWL 953.0 -A l \ 954.9 1! z z' 0 5 Cal V7LET CONTROL\\\ / �TRUCTURE 3 I PER�MANENT MND®T_ / 20' WIDE DRIVE /� Fq \S f DRARKS EASEMENT 1 / SE �. , \ RAIN ANENT MNOOT EMEN1 L RAINACE EASEMENT ,\ 16.5' l 9 10 - X943\ 8 H \ 7 1 S S fgaF 1 �' 50' BLDG. SSB FROM\ \ 5 FRONT PROPERTY LIN / ���1 . 6 1 I MH _9E�! 966.3 NOUS PATH f MH i MH ag -� �' \ �- RIM= 6 c=955 3 / I 5 PROPOSED 8" INV= 57 2 Q� IESAN. SEWER \ / / �M RIM=962.20 <e 27" RCP << - RCP _ Q7 - ' j R=9 6 g'` INV=956.12 L_ --- HYD. M=965.03 V=958.79 EsIE=95 y\�/ \ 21" RCP @ 0.5% / Pe*P�C�f'�' / \` / J 965.78 V�`8�w9.27 o E=959.5 p 5 RE= 958.0 / RE 96 �9 QL� /CONNECT TO l I P �< RIM=964.51 IE=953.7/ 1E=954.0, \ / EXISTING 18"WM ' \ ' I RIM= 6 68 NV=960.43 /� INV= 5 0 / / \ / // i/ / i ^ L- O. / i j � L FEST/ ZIP �QF RIM=960.57 / INV=950.0 i RIM=960.5 1 '� INV=959!55 / 2 / /IMPERVIOUS AREA CALCS GENERAL UTILITY NOTES �- RIM=963.68' INV=959.83 / TOTAL SITE = 265,595 SF WETLAND AREA = 27,577 SF IMPERVIOUS AREA = 51,081 SF (22,845 SF PVMT + 12 UNITS ® 2,353 SF EA.) TOTAL IMPERVIOUS AREA/(TOTAL SITE - WETLAND) = % HARD SURFACE 51,081/265,595 - 27,577 = 21% HARD SURFACE (REQUIRMENT <= 30%) SITE DATA Sq. Ft. Acres GROSS SITE AREA 265,595± 6.10± RIGHT OF WAYS O± 0± NET SITE AREA 265,595-f 6.1O± SITE DENSITY 12 SINGLE-FAMILY DWELLING UNITS ON 6.1 AC. = 2.0 D.U./AC. - GROSS 12 SINGLE-FAMILY DWELLING UNITS ON 6.1 AC. = 2.0 D.U./AC. - NET THE CONTRACTOR SHALL VERIFY ALL EXISTING COND177ONS PRIOR TO CONSTRUCTION AND NOTIFY THE OWNER OF ANY DIFFERENCES. ALL WORK SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE CITY STANDARD SPECIFICATIONS, PROJECT SPECIFICATIONS OR AS MODIFIED HEREIN. UNLESS OTHERWISE NOTED, OR AS SPECIFIED IN THE ABOVE NOTE, ALL MATERIALS, CONSTRUCTION TECHNIQUES AND TESTING SHALL CONFORM TO THE 1999 ED. OF THE "STANDARD UTIL177ES SPECIFICATIONS FOR WATER MAIN AND SERVICE LINE INSTALLATION AND SANITARY SEWER AND STORM SEWER INSTALLATION BY THE CITY ENGINEERING ASSOCIATION OF MINN." AND TO THE "STANDARD SPECIFICATION FOR HIGHWAY CONSTRUCTION" MINN. DEPT. OF TRANS., 2000 EDITION, INCLUDING THE CURRENT ADDENDUM. THE CONTRACTOR SHALL RECEIVE THE NECESSARY PERMITS FOR ALL WORK OUTSIDE OF THE PROPERTY LIMITS. SEE ARCH. PLAN FOR EXACT BLDG. LOCA770N. SEE SI7E PLAN FOR LAYOUT DIMENSIONS. SERVICE ENTRY LOCATIONS TO BE COORDINATED WITH THE ARCHITECT. VERIFY EXIS77NG INVERT LOC. & ELEV. PRIOR TO BEGINNING CONSTRUCTION. THE WATER SERVICE SHALL BE INSTALLED WITH A MIN. OF 7.5 FT. OF COVER. ALL STORM SEWER PIPE SHALL BE CLASS 5 UNLESS OTHERWISE NOTED. THE CONTRACTOR SHALL CONTACT "GOPHER STATE ONE CALL" FOR FOR UTILITY LOCA7IONS PRIOR TO U77LITY INSTALLATION. 0, � o• ? ,�0' 150 Rya n Flo 7 Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. - Date GALPIN CROSSING TWINHOMES Chanhassen, MN for EPIC DEVELOPMENT, LLC Project No. Digital Drawing Nome gall*-twintwmes-prelim-5.dwg Drawn By GLG Checked By PMR Dote 3/16/06 Re vision s 3/27/06 Per City Review Cornlnente 4/19/06 Per City Review Convnente Issued For Date; _ Schematic Design Design Development , Preliminary Review Final Review Bidding Construction Preliminary Site and Utility Plan Page P-4 i RIM=963.68' INV=959.83 / TOTAL SITE = 265,595 SF WETLAND AREA = 27,577 SF IMPERVIOUS AREA = 51,081 SF (22,845 SF PVMT + 12 UNITS ® 2,353 SF EA.) TOTAL IMPERVIOUS AREA/(TOTAL SITE - WETLAND) = % HARD SURFACE 51,081/265,595 - 27,577 = 21% HARD SURFACE (REQUIRMENT <= 30%) SITE DATA Sq. Ft. Acres GROSS SITE AREA 265,595± 6.10± RIGHT OF WAYS O± 0± NET SITE AREA 265,595-f 6.1O± SITE DENSITY 12 SINGLE-FAMILY DWELLING UNITS ON 6.1 AC. = 2.0 D.U./AC. - GROSS 12 SINGLE-FAMILY DWELLING UNITS ON 6.1 AC. = 2.0 D.U./AC. - NET THE CONTRACTOR SHALL VERIFY ALL EXISTING COND177ONS PRIOR TO CONSTRUCTION AND NOTIFY THE OWNER OF ANY DIFFERENCES. ALL WORK SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE CITY STANDARD SPECIFICATIONS, PROJECT SPECIFICATIONS OR AS MODIFIED HEREIN. UNLESS OTHERWISE NOTED, OR AS SPECIFIED IN THE ABOVE NOTE, ALL MATERIALS, CONSTRUCTION TECHNIQUES AND TESTING SHALL CONFORM TO THE 1999 ED. OF THE "STANDARD UTIL177ES SPECIFICATIONS FOR WATER MAIN AND SERVICE LINE INSTALLATION AND SANITARY SEWER AND STORM SEWER INSTALLATION BY THE CITY ENGINEERING ASSOCIATION OF MINN." AND TO THE "STANDARD SPECIFICATION FOR HIGHWAY CONSTRUCTION" MINN. DEPT. OF TRANS., 2000 EDITION, INCLUDING THE CURRENT ADDENDUM. THE CONTRACTOR SHALL RECEIVE THE NECESSARY PERMITS FOR ALL WORK OUTSIDE OF THE PROPERTY LIMITS. SEE ARCH. PLAN FOR EXACT BLDG. LOCA770N. SEE SI7E PLAN FOR LAYOUT DIMENSIONS. SERVICE ENTRY LOCATIONS TO BE COORDINATED WITH THE ARCHITECT. VERIFY EXIS77NG INVERT LOC. & ELEV. PRIOR TO BEGINNING CONSTRUCTION. THE WATER SERVICE SHALL BE INSTALLED WITH A MIN. OF 7.5 FT. OF COVER. ALL STORM SEWER PIPE SHALL BE CLASS 5 UNLESS OTHERWISE NOTED. THE CONTRACTOR SHALL CONTACT "GOPHER STATE ONE CALL" FOR FOR UTILITY LOCA7IONS PRIOR TO U77LITY INSTALLATION. 0, � o• ? ,�0' 150 Rya n Flo 7 Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. - Date GALPIN CROSSING TWINHOMES Chanhassen, MN for EPIC DEVELOPMENT, LLC Project No. Digital Drawing Nome gall*-twintwmes-prelim-5.dwg Drawn By GLG Checked By PMR Dote 3/16/06 Re vision s 3/27/06 Per City Review Cornlnente 4/19/06 Per City Review Convnente Issued For Date; _ Schematic Design Design Development , Preliminary Review Final Review Bidding Construction Preliminary Site and Utility Plan Page P-4 2006 RYAN ENGINEERING, INC. \ \ BLUFF C REck , I 1,OEO,2 A EL APPROXIMATE TREE CANOPY \ — _ FROM AERIAL PHOTOGRAPHY 9E ,o — OU —r - LOT FA�_ qe ,.0ee O 0 OW is — ` 49a9. IN --SS EASES \ — / \ 80E a n ,z es \ . e.3 OBE 6.2 w0 w1( (D w e &16 pit I SS EA �, " NIL. � �_� / � \ \ �. e>• "\ a \ zo \ OEl t o OU TLOT 55Ate" _ \ _OK 4 011 OISEWETLAND BASIN N0. 3 / \`— Segse —WL---- // B L 0 C K 0 N �— �\\\\\a�\daa a 7— -Ne' (SW 1414 a�# r s \ e 21 E4°°E,.Q p . 12 POND ow 10 IHV& 9549 NML 953.0 _ 10 4 •` 3/ 4 I � 3 II m 0 5 F/mll 0 8 \ \� 7 qSf\ wEsr 78 � i I t I / °,�a QPM• � � J O? / BASELINE TREE CANOPY COVERAGE CALC. PLANT LIST / / I / TOTAL PLAT AREA = 265,5951 SF �rMb.L OTY COMMON NAME SIZE / WETLAND = 27,577± SF 15 LARGE TREES TO INCLUDE THE FOLLOWING: / NET PLAT AREA = 238,018± SF �yy� PATMORE ASH z-1/2- B&B 'lkrd' GREENSPIRE LINDEN 2-1/2_ B&B AMERICAN LINDEN 2-1/2• B&S EMERALOD LUSTTRE MAPLE 2-1/2•• B&B / BRUSH TREE COVERAGE = 33,490± SF NORTHWOOD MAPLE 2-1/2 B&B BRUSH/TREE OAK 2-1/2B&B (EXCLUDING WETLANDS) IMPERIAL HONEYLOCUST 2-1/2•„ B&B CTREE CANOPY COVERAGE 33,490± SF (14% EXISTING COVERAGE) 15 BLACK HILLS RRUCE > 6' High o COLORADO SPRUCE > 6' High OR SCOTCH PINE > 6' High AUSTRIAN PINE > 6' High / OUNL)-ATION PLANTINGS - TWINHOMES REQUIRED TREE CANOPY COVERAGE CALC. TOTAL EXISTING CANOPY COVERAGE ON SITE = 14% REQUIRED CANOPY COVERAGE (LOW DENS. RESID.) = 25% REPLACEMENT REQUIRED: TARGET CANOPY - EXISTING CANOPY X UPLAND AREA DIVIDED BY 1089 (25%-14% = 25%) 11% X 238,018/1089 = 24 TREES PLUS EXISTING COVERAGE REMOVED (1%) X 1.2 (PENALTY) DIVIDED BY 1089 2,380 X 1.2/1089 = 3 TREES TOTAL TREE REPLACEMENT REQUIRED = 27 TREES REPLACED = 30 NOTES: BASED UPON PLANT AVAILABILITY, THE DEVELOPER RESERVES THE RIGHT TO SUBSTITUTE THE ABOVE TREES WITHIN THE SAME CATAGORY WITH - PRIOR APPROVAL FROM THE CITY OF CHANHASSEN. THE TREES PLANTED WILL BE BASED UPON AVAILABILITY IN THE SPRING OF 2002 AT WHICH TIME A PLAN SHALL BE SUBMITTED. TREES MUST BE FROM THE APPROVED LIST OF DESIRABLE SPECIES - (PREFERENCE GIVEN FOR TREES DESIGNATED AS NATIVE) NO MORE THAN ONE—THIRD (1/3) OF THE TREES MAY BE FROM ANY ONE (1) TREE SPECIES, TREES SHALL BE USED THAT ARE ARE APPROPRIATE TO THE SOIL CONDITIONS FOUND ON THE SITE AND TREES SHALL AVERAGE AT LEAST TWO—AND—ONE—HALF—INCH CALIPER AND MAY BE A MINIMUM OF ONE—AND—ONE—HALF—INCH CALIPER. NOT LESS THAN TWENTY (20) PERCENT OF THE TREES SHALL BE CONIFERS, CONIFER TREES SHALL AVERAGE SEVEN (7) FEET AND SHALL BE A MINIMUM OF SIX (6) FEET IN HEIGHT. TREES SHALL BE FROM CERTIFIED NURSERY STOCK AS DEFINED AND CONTROLLED BY MINNESOTA STATUTE SECTIONS 18.44 THROUGH 18.61, THE PLAN PEST ACT. . C 0' 50' 100' 150' Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. Date GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No Di-gifol Drawing Name galpin-tvAnhomes-preNm-5.dwg Drawn Sy GLG Checked By PMR 3/16/06 Revisions 3/27/06 Per City Review Commwnte 4/19/06 Per City Review Comments Issued_ For: r• _ Date: Schematic Design Design Development . Preliminary Review Final Review Bidding Construction Preliminary Tree Inventory/ Landscape Plan Page P-5 C/2 Key Name Oty./Unit Size A MINT JULEP JUNIPER 6 /3 CONT. A/3 B SCANDIA JUNIPER 2 /3 CONT. C DWARF WINGED EUONYMUS 4 :,(15 CONT. E/2 D MISS KIM LILAC 9yy2 CONT. E GOLDFLAME SPIREA 4 2 CONT. D/4 NOTE: ALL PLANTINGS SHALL BE LANDSCAPE EDGED B/1 AND ROCK MULCHED (ALSO UNDER DECKS) IRRIGATION SYSTEM WILL BE REQUIRED FOR D/1 FOUNDATION PLANTINGS. REQUIRED TREE CANOPY COVERAGE CALC. TOTAL EXISTING CANOPY COVERAGE ON SITE = 14% REQUIRED CANOPY COVERAGE (LOW DENS. RESID.) = 25% REPLACEMENT REQUIRED: TARGET CANOPY - EXISTING CANOPY X UPLAND AREA DIVIDED BY 1089 (25%-14% = 25%) 11% X 238,018/1089 = 24 TREES PLUS EXISTING COVERAGE REMOVED (1%) X 1.2 (PENALTY) DIVIDED BY 1089 2,380 X 1.2/1089 = 3 TREES TOTAL TREE REPLACEMENT REQUIRED = 27 TREES REPLACED = 30 NOTES: BASED UPON PLANT AVAILABILITY, THE DEVELOPER RESERVES THE RIGHT TO SUBSTITUTE THE ABOVE TREES WITHIN THE SAME CATAGORY WITH - PRIOR APPROVAL FROM THE CITY OF CHANHASSEN. THE TREES PLANTED WILL BE BASED UPON AVAILABILITY IN THE SPRING OF 2002 AT WHICH TIME A PLAN SHALL BE SUBMITTED. TREES MUST BE FROM THE APPROVED LIST OF DESIRABLE SPECIES - (PREFERENCE GIVEN FOR TREES DESIGNATED AS NATIVE) NO MORE THAN ONE—THIRD (1/3) OF THE TREES MAY BE FROM ANY ONE (1) TREE SPECIES, TREES SHALL BE USED THAT ARE ARE APPROPRIATE TO THE SOIL CONDITIONS FOUND ON THE SITE AND TREES SHALL AVERAGE AT LEAST TWO—AND—ONE—HALF—INCH CALIPER AND MAY BE A MINIMUM OF ONE—AND—ONE—HALF—INCH CALIPER. NOT LESS THAN TWENTY (20) PERCENT OF THE TREES SHALL BE CONIFERS, CONIFER TREES SHALL AVERAGE SEVEN (7) FEET AND SHALL BE A MINIMUM OF SIX (6) FEET IN HEIGHT. TREES SHALL BE FROM CERTIFIED NURSERY STOCK AS DEFINED AND CONTROLLED BY MINNESOTA STATUTE SECTIONS 18.44 THROUGH 18.61, THE PLAN PEST ACT. . C 0' 50' 100' 150' Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. Date GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No Di-gifol Drawing Name galpin-tvAnhomes-preNm-5.dwg Drawn Sy GLG Checked By PMR 3/16/06 Revisions 3/27/06 Per City Review Commwnte 4/19/06 Per City Review Comments Issued_ For: r• _ Date: Schematic Design Design Development . Preliminary Review Final Review Bidding Construction Preliminary Tree Inventory/ Landscape Plan Page P-5 2006 RYAN ENGINEERING, INC. \ I \ I \ I BUFF CR 1 EEK \k ?012 IPS00 po BE _—� APPROXIMATE TREE CANOPY BE FROM AERIAL PHOTOGRAPHY o . BE is O VT L OT I J/AH ,z5 --SS EASE . ` *F31O' c.1a.zcw ° iOK °.1 ° 480 0 ear EASE_ 1_ O SS -----fie ° 6 zo OUTLOr— i — — iBASINN0. S \ WETLAND BAS�r,a O \ / /i EA E��1 01A\ / \ OK (DBA 9 13 \ 1 iz d, \ I Ml7RKT' 1 \use, 4 r B�jaE ,♦ It 14 �ia A i1 17 \ • f�pec ,aQ ° BE , 14 16 POND 12 IPBE NWL 953.0 , 1 , NL--- -- b"1i _ \ -% o -04% 1� 8 el ��� 5 6 .1(0 I � 3 1 ri 2 1 J � a6p► M f 0 1 L / BUFFER YARD TYPE B REQUIREMENTS +P // / REQUIREMENTS PER 100 LF OR RIGHT OF WAY: % 2 OVERSTORY TREES / SHRUB 2 STORY TREES 6 SHRUBS PLANT LIST - WEST 78TH ST. - 860' PLANT LIST - GALPIN BLVD. - 210' �SEYMpOL OTY COMMON NAME SIZE SYMBOL OTY COMMON NAME SIZE 9 BLACK HILLS SRUCE / COLORADO SPRUCE 6' B&B 2 BLACK HILLS SRUCE / COLORADO SPRUCE 6' B&B / ® 54 SHRUBS TO INCLUDE THE FOLLOWING: ® 12 SHRUBS TO INCLUDE THE FOLLOWING: ISANTI DOGWOOD 18'-24" CONTAINER SANTI DOGWOOD 18"-24" CONTAINER WENTWORTH VIBRUNUMCONTAINER WENTWORTH VIBRUNUM �S CONTAINER M5 CARDINAL DOGWOOD 8"-24" CONTAINER CARDINAL DOGWOOD 18"-24 CONTAINER WINGED EUONYMUS 18"-24" CONTAINER WINGED EUONYMUS 18"-24" CONTAINER COMPACT AMUR MAPLE 18"-24" CONTAINER COMPACT AMUR MAPLE 18"-24" CONTAINER CHARLES JOY LILAC 18"-24" CONTAINER CHARLES JOY LILAC 18'-24" CONTAINER 9 SMALL TREES TO INCLUDE THE FOLLOWING: Anta 2 SMALL TREES TO INCLUDE THE FOLLOWING: SPARKLER CRABAPPLE 2" B&B iv SPARKLER CRABAPPLE 2" B&B SPRING SNOW CRABAPPLE 2" B&B SPRING SNOW CRABAPPLE 2" B&B JAPANESE TREE LILAC 2" B&B JAPANESE TREE LILAC 2" B&B AMUR MAPLE CLUMP 6' B&B AMUR MAPLE CLUMP 6' B&B I I 18 LARGE TREES TO INCLUDE THE FOLLOWING: 4 LARGE TREES TO INCLUDE THE FOLLOWING: 1 II PATMORE ASH 2 1/2" B&B PATMORE ASH 2 1/2" B&B GREENSPIRE LINDEN 2 1/2: B&B GREENSPIRE LINDEN 2 1/2" B&B AMERICAN LINDEN 2 1/2B&B AMERICAN LINDEN 2 1/2" B&B I EMERALOO LUSTTRE MAPLE 2 1/2" B&B EMERALOD LUSTTRE MAPLE 2 1/2 B&B NORTHWOOD MAPLE 2 1/2" B&B NOPTHWOOD MAPLE 2 1/2" B&B PIN OAK 2 1/2" . B&B PIN OAK 2 1/2: B&B IMPERIAL HONEYLOCUST 2 1/2 B&B IMPERIAL HONEYLOCUST 2 1/2 B&B 0 NOTES: BASED UPON PLANT AVAILABILITY, THE DEVELOPER RESERVES THE RIGHT TO SUBSTITUTE THE ABOVE TREES WITHIN THE SAME C.ATAGORY WITH PRIOR APPROVAL FROM THE CITY OF LAKEVILLE, THE TREES PLANTED WILL BE BASED UPON AVAILABILITY IN THE SPRING OF 2002 AT WHICH TIME A PLAN SHALL BE SUBMITTED. CONVENIENCE STORE r� `"J I 0' 50' 100' 150' Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am o duly registered Engineer under the laws of the Stale of Minnesota. Signature Registration No. Date GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No. Digital Drawing Name galp W twhhomes-preim-4.dwg Dro wn By GLG Checked By PMR Do to 3/27/06 Revisions 4/19/08 Per CRy Review Comments Issued For: Date_ : Schematic Design Design Development Preliminary Review Final Review Bidding Construction Preliminary Buffer Yard Planting Plan Page P-6 V 2006 RYAN ENGINEERING. INC Preliminary Plans For GALPIN CROSSING TWINHOM S �P SITE - m" 78TH ST. W 7aST. W HWY. 5 HWY. 5 m GOVLSER Z � w a BLVD o Z m J � � N N Q Q S c� O 3 � NORTH Lj "."T�qm Chanhassen, Minnesota DEVELOPER: MEPIC DEVELOPMENT, LLC 9820 Sky Lane Eden Prairie, MN 55347 (612) 730-2814 CIVIL ENGINEER: R r y an 7 Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 (952) 380-5010 (Fax) www.ryanengineering.com CITY OF CHANHASSEN RECEIVED MAR 3 0 2006 CHANHASSEN PUNNING DEPT GALPIN CROSSING REVISED 3/27/06 I'r') 2006 RYAN FNGINFERING, INC 580'11'47"E 1 Z. 77' S87'11'47"E BL _ — . UFF CR — i 579'11 '47„ BE 2 EL 12 El. 8 EL a BE 10 _• " 4, E BE 14 S MH BE 14 BE ,. --��,. = . 0 U T L 0 T FTap= '5'.79 BE 14 BE ,B BE N nv="0943.2± H 14 \ �p •� �'4 1 55 EPS _� SS EASES B s "''2 \ 00, E - _ BE 6.2 BE B 30' BE 16 N CCN 1i . Pr B BE OVERHEAD ELECTRIC - �� -� ��z , SS e ,r e TRANSMISSION WIRES SS EASES �= o EASE s BE zo A qe� sR) / SANM11-,EN 32 , / \ I SS EP7 _ \ I . off- _- Top— 960. BCB \�`>' �' 03'13'E BASIN 140. 3 ,eGe -- -SS EASE 'BCPC___ s f \- $ 98 se / \ WETLAND B _ eE 4C ° _4.98 s 202 l J SAN MH \ �y\\\ \ n a . ,4 � 8, i•. TOP- / era ee ° BA +aA " B \ /PERMANENT DOT F!r\ \ S89'56'4'"E /EX. MH — — \ I / \ \ , \ \ yr `\ \ ec B u .oq 1♦ P`^ = ` 0�7� DRAINAGE EA MENT \ B\ oz t• B / o " IC RIM=955.50 Y� CPC` i \ X1.4 � 14 10 NV=943.Fa6 - ' PARCEL A POWER POLE C = SSS CPC \ SS H` +.• �y a STRUCTURE I Fgse , \\cq B BE 12, _ I / I 265,595 Sq. Ft. aE TDR (6.097 Acresj -� �+4�B i0 N I \ \ I"A-962 0 1 5 f OUTLE 1 =949..3 B1 l O I L SS '62• BITUMINOUS PATH eA e rb/ qIP CL_ 51 i ��/� 34 ��G INV 57/1 \ /.00 ameer / �IM=962.20 << 27" RCS Q U% <<2 INV=956.12 RCP FES / 1$ \P / ORq/NgGE Eqs NT IE -954.0 / 1 °�91� LL 5 L IL FE; IE�954.9 . QP RIN4=960.57 / � IiJV=950. Q G RhM=960.5 > INV=95P!55 / 40A' / LEGEND Sanitary Sewer 4— — SANITARY SEWER —4 WATER WATER — I HYD. W/VALVE HYD. W/VALVE STORM SEWER STORM SEWER —N— WETLAND BLUFF CREEK — — —BCPC— — — PRIMARY CORRIDOR BOUNDARY 0 SIM 4T MNDOT EASEMENT RIM=963.68 INV=959.831 O I M=965.03 V=958.79 21" RCP 0 0.59 1965.78 / JV=959.27 014E'L \ /CONVENIENCE STORE / _1ST FL. ELEV.=967.25/ / LOT 1 J 0' 50' 100' 150 RY4n Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www. ry anengineer i ng, com I hereby certify that this pion, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No Digital Drawing Nome 9a1ph-twinhomee-prelim-5.dwg Drown By CLG Checked Byy PMR Dote 3/16/06 ,9e vision s 3/27/06 Per City Review Comrante Issued For Date: Schematic Design Design Development . Preliminary Review Final Review Bidding Construction Existing Conditions Page P-1 RIM=964.51 o p14 eTNV=960.43 RIM 65 68 INV 5 .80 \ /CONVENIENCE STORE / _1ST FL. ELEV.=967.25/ / LOT 1 J 0' 50' 100' 150 RY4n Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www. ry anengineer i ng, com I hereby certify that this pion, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No Digital Drawing Nome 9a1ph-twinhomee-prelim-5.dwg Drown By CLG Checked Byy PMR Dote 3/16/06 ,9e vision s 3/27/06 Per City Review Comrante Issued For Date: Schematic Design Design Development . Preliminary Review Final Review Bidding Construction Existing Conditions Page P-1 �' ( 2006 RYAN ENGINEERING, INC. OU 1 LO T F OWNER. RALPH PAMPER/N & BARBARA ELSETH 7719 VASSERMAN TRAIL CHANHASSEN, MN 55317 9 OWNER: LAWRENCE & MICHAELE MARTIN 7725 VASSERMAN TRAIL CHANHASSEN, MN 55317 8 OWNER: CHARLES & GAIL GALINO 7729 VASSERMAN TRAIL CHANHASSEN, MN 55,317 I } OWNER: ' DIANE ERICKSON, TRUSTEE W 7735 VASSERMAN TRAIL CHANHASSEN, MN 55317 S80.11.47„ 177 77, E OWNER: THEODORE & MARLENE BEN TZ _ S87.11'47"E 7,300 GALPIN BLVD. 100.40' EXCELSIOR, MN 55331 194.14, E / N S75 -71, S •1j 47 E 1 /55 EASES_ / SSS EASE�� �� E6 EASE! N� O56, , OUTLOT i - _ 92 N82•p313 ,CASE E 1' \SS F 74.98'�SSB• A p, �� B LOCK 0 N � -� � � �8• F \ S89'56'47"E 13 �,� io1.72' v — O 54' PSQ. eel 45 \45 \ 4� 4' 6 Q P �9h P a5 �, \ 6hp9�S \ PERMANENT MNDOT._ / �' l6• 45 S f SS F4S DRAINAGE EASEMENT W 12 w '�Sf 00 4� W 1 n W 1� \ \� 2�5' PERMANENTAGE EASEMENT \ I� 143 0 6 tr + N 01 OWNER J 45' I 451 \ 8 \ -7 CP 45 PROPOSED D & U CP / 4 EASEMENT (ENTIRE LOT 13) SS fAsf� R 935a 46., WEST 78 Ser ROBERT & GABRIELLE GRIFFITH O 83' 7739 VASSERMAN TRAIL15 CHANHASSEN, MN 55317 I a / �\l OWNER: , / !, JAMES & AMELIA CHMURA / 7745 VASSERMAN TRAIL W 4 CHANHASSEN, MN 55317 �Pr� Of OWNER: EPIC DEVELOPMENT XVI, LLC 9820 SKY LANE OWNER: / N / EDEN PRAIRIE, MN 55347 \ THOMAS & HELLEN ERNST 7749 VASSERMAN TRAIL CHANHASSEN, MN 55317 1 2 OW GERALD & PEGGY WOLFE i p�� / / 7755 VASSERMAN TRAIL CHANHASSEN, MN 55317 / OWNER: MICHAEL & CAROL YN SHIELDS / 7759 MAN TRAIL CHANHASSEN, MN 55317 / i / l m DEVELOPMENT DATA LOT AREA DATA / ZONING: EXISTING ZONING: Agriculctural SINGLE FAM. DEVELOPMENT AREA 6. 10± +/- AC o / PROPOSED ZONING. Planned Unit Development o CITY LAND USE PLAN Residential 0 2-4 Units /Acre) / n PROPOSED LAND USE. 2.0 Units/Acre � LOT NUMBER AREA S.F. / 0 LEGAL DESCRIPTION BLOCK 1 1 3,735E / 2 3,735-± WRITTEN DESCRIPTION TO BE SUBMITTED. 3 3,7,35± 3, 735± 5 3,7.35± 6 3,7,35-± DEVELOPER: 7 3, 735±8 3, 735± EPIC DEVELOPMENT XVI, LLC 9 3,735± LEGEND 9820 SKY LANE EDEN PRA/RIE, MN 55347 10 3, 7351 - EXISTING 11 3, 7351 PROPOSED 12 3,735± Sanitary Sewer 4— — SANITARY SEWER —4 13 119,968± WATER WATER —1 OUTLOT A 100,807± HYD. W/VALVE HYD. W/VALVE —1—�+} Total BLOCK 1 265,5951 STORM SEWER STORM SEWER Avg Lot Area 3,735± WETLAND Toto/ Plot Area 265,5951 BLUFF CREEK — — —BCPC— — — PRIMARY CORRIDOR BOUNDARY II I I I OWNER: I KL/NGELHUTZ DEVELOPMENT 350 HWY 212 E, PO BOX 89 I CHASKA, MN 55318 \ I \ \ \ \ OWNER: \ \ \ CITY OF CHANHASSEN PO BOX 147 \ \ CHANHASSEN, MN 55317 \ \ 0' 50' 100' 150 R07 ya 0.0000 n. Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www. ry anengi nee r ing. corn I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. (late GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No. Digital Drawing Nome ga1pin-twinhomes-prelim-3.dwg Drawn By GLG Checked By PMR Date 3/16/06 Revisions Issued For Date: Schematic Design _ Design Development Preliminary Review Final Review Bidding - Construction Preliminary Plat Page P-2 / n PROPOSED LAND USE. 2.0 Units/Acre � LOT NUMBER AREA S.F. / 0 LEGAL DESCRIPTION BLOCK 1 1 3,735E / 2 3,735-± WRITTEN DESCRIPTION TO BE SUBMITTED. 3 3,7,35± 3, 735± 5 3,7.35± 6 3,7,35-± DEVELOPER: 7 3, 735±8 3, 735± EPIC DEVELOPMENT XVI, LLC 9 3,735± LEGEND 9820 SKY LANE EDEN PRA/RIE, MN 55347 10 3, 7351 - EXISTING 11 3, 7351 PROPOSED 12 3,735± Sanitary Sewer 4— — SANITARY SEWER —4 13 119,968± WATER WATER —1 OUTLOT A 100,807± HYD. W/VALVE HYD. W/VALVE —1—�+} Total BLOCK 1 265,5951 STORM SEWER STORM SEWER Avg Lot Area 3,735± WETLAND Toto/ Plot Area 265,5951 BLUFF CREEK — — —BCPC— — — PRIMARY CORRIDOR BOUNDARY II I I I OWNER: I KL/NGELHUTZ DEVELOPMENT 350 HWY 212 E, PO BOX 89 I CHASKA, MN 55318 \ I \ \ \ \ OWNER: \ \ \ CITY OF CHANHASSEN PO BOX 147 \ \ CHANHASSEN, MN 55317 \ \ 0' 50' 100' 150 R07 ya 0.0000 n. Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www. ry anengi nee r ing. corn I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. (late GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No. Digital Drawing Nome ga1pin-twinhomes-prelim-3.dwg Drawn By GLG Checked By PMR Date 3/16/06 Revisions Issued For Date: Schematic Design _ Design Development Preliminary Review Final Review Bidding - Construction Preliminary Plat Page P-2 II I I I OWNER: I KL/NGELHUTZ DEVELOPMENT 350 HWY 212 E, PO BOX 89 I CHASKA, MN 55318 \ I \ \ \ \ OWNER: \ \ \ CITY OF CHANHASSEN PO BOX 147 \ \ CHANHASSEN, MN 55317 \ \ 0' 50' 100' 150 R07 ya 0.0000 n. Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www. ry anengi nee r ing. corn I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. (late GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No. Digital Drawing Nome ga1pin-twinhomes-prelim-3.dwg Drawn By GLG Checked By PMR Date 3/16/06 Revisions Issued For Date: Schematic Design _ Design Development Preliminary Review Final Review Bidding - Construction Preliminary Plat Page P-2 2006 RYAN ENGINEERING, INC. 1-2 OF BE 6 a..__ fir__ �. .. ��-.A 6 ♦ n 2E i- ♦ :�/ / OUTLOT �-_ _ - ,-----rPCND �. I NwL. 953 .0 � B 0 �.. N 8 HY& 954.9i 9 / ST -5 \ \� `�� it °i a,, -a 6 n "�•: �.E`/' ST -4 \ v \ ee ar 956 �I -7 I 957 957 � �IlCPC� 13 9 11 12 f; 10 9 967 I ib g ST -2 ST pFj� 8 6� �� ST_g h 7�o��2g�� 1 4 958 � C78� 5 6 58 3 /— -- g i 968 00 z 1(965.5 WEST X78 T_00 CID, _ —q\ Ln � 964 916 / Q j r G - j LEGEND OIL ING %I EXISTING CONTOURS (BRST-2 WETLAND BRAN NTERTEC) BLUFF _ _ _ BCPC--- 927 PROPOSED CONTOURS EMSTING PRIMARY CORRIDOR B.ACV Y'ARC ELEv. (L2� SILT FENCE SANITARY SEWER <1— — BOUNDARY BASEMENT ELEV (WO) WATER - 25.0 — GENERAL H,-,uSE PAD PREP. AREA EXISTING SPOT ELEVATION HYD W/VALVE — -- LO HOUSE TYPE _ %950 PROPOSED SPOT ELEVATION STORM SEWER— a I` 27.0 F GARAGE FLOOR ELEVATION PROPOSED 8' 5.5 FINISHED FLOOR ELEVATION STORM SEWER —N— Ry an Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengir)eering.com hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly •egistered Engineer under the laws of the State of Minnesota. ;ignoture Registration No Nate GALPIN CROSSING TWINHOMES Chanhassen, MN for ME DEVELOPMENT, LLC Project P✓o. Digitcl Drawing Nome galpirt W**liomes-prelim-5.dwg Drown By GLG Checked By PMH Date 3/16/06 Re ivrsions 3/27/06 Per CQy P&Aow Cormfiiii Issued For Date Schematic Design Design Development . Preliminary Review Final Review Bidding Construction Preliminary Grading and SWPP Plan Page P-3 2006 RYAN ENGINEERING, INC. L RD/ MI MCH tTy �i THICKNESS 50 FOOT MINIMUM LENGTH MNDOT STANDARD SPECIFICATION 3133 TYPE V PERMEABLE GEOTEXTILE FABRIC MATERu BENEATH THE ROCK I TO 2 INCH DIAMETER WASHED ROCK, MNDOT STANCNRD SPECIFICATION 1131 CA -1. CA -2. CA -3 OR EQUAL COARSE AGGREGATE 24 INCH HIGH CUT-OFF BERM NOTEROCK CONSTRUCTION ENTRANCE SHOULD BE A MINIMUM HEIGHT OF 2.0' AND CONTAIN MAXIMUM SIDE SLOPES OF 4 1. 20 F00T MINIMUM WIDTH ROCK CONSTRUCTION ENTRANCE GENERAL GRADING AND DRAINAGE NOTES CONTRACTOR SHALL CONTACT GOPHER STATE "ONE CALL" FOR UTILITY LOCAT70NS AT 454-0002 THE CONTRACTOR SHALL VERIFY THE LOCA77ON AND ELEVATION OF EXISTING UTIL177ES AND TOPOGRAPHICAL FEATURES WITH THE OWNERS AND FIELD—VERIFY PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL IMMEDIATELY NOTIFY THE ENGINEER OF ANY DISCREPANCIES OR VARIATIONS. ALL CONTOURS AND SPOT ELEVATIONS ARE SHOWN TO FINISHED SURFACE/GUTTER GRADES UNLESS SHOWN OTHERWISE REFER TO PAVING PLAN FOR DETAILED SPOT ELEVATIONS, GRADE PERCENTAGES, AND VERTICAL CURVE INFORMATION. ALL SILT FENCE SHALL BE IN PLACE PRIOR TO IN177ATION OF EARTHWORK AND SHALL BE MAINTAINED UNTIL VIABLE TURF OR GROUND COVER IS ESTABLISHED, AT WHICH 77ME IT SHALL BE REMOVED. TEMPORARY PONDING, DIKES, HAYBALES, ETC., REQUIRED BY THE CITY SHALL BE INCIDENTAL TO THE GRADING. THE CONTRACTOR SHALL USE A ROCK CONSTRUCTION ENTRANCE ACCORDING TO THE DETAILS. ALL STREETS DISTURBED DURING WORKING HOURS MUST BE CLEANED AT THE END OF EACH WORKING DAY. GRAVEL & FILTER FABRIC SHALL BE INSTALLED PER DETAIL AT ALL CATCH BASINS (INCIDENTAL). THE CONTRACTOR SHALL INSURE POSITIVE DRAINAGE /S MA/NTANED FROM THE SITE AT ALL TIMES. CONTRACTOR SHALL BE RESPONSIBLE FOR TEMPORARY DITCHES, PIPING, OR OTHER MEANS REQUIRED TO INSURE PROPER DRAINAGE DURING CONSTRUCTION. LOW POINTS IN ROADWAYS OR BUILDING PADS MUST BE PROVIDED WITH A POSITIVE OUTFLOW. WITHIN 7 DAYS OF COMPLETION OF GRADING, ALL NEWLY GRADED SLOPES SHALL BE SEEDED, FERTILIZED AND MULCHED IN ACCORDANCE WITH THE CITY SPECIFICATIONS. SEED SHALL BE MIXTURE NO. 50A AT A RATE OF 75 POUNDS PER ACRE. MULCH MATERIAL SHALL BE TYPE 1 PLACED AT OF 2 TONS PER ACRE. ALL PONDS SHALL RECEIVE A WETLAND SEED MIXTURE NO. 25A ABOVE THE NWL PER CITY SPECIFICATIONS. ALL UPLAND AREAS DISTURBED AS A RESULT OF CONSTRUCTION ACTIVITIES SHALL BE IMMEDIATELY RESTORED WITH SEED AND DISC—MULCHED, COVERED WITH A WOOD—FIBER BLANKET OR SODDED WITHIN TWO WEEKS OF COMPLETION OF EACH ACTIVITY /N ACCORDANCE WITH THE CITY'S BEST MANAGEMENT PRACTICE HANDBOOK. BUILDING PAD HOLD DOWN SHALL BE 1'-0". ROADWAY HOLD DOWN SHALL BE PER DETAIL SHEET ALL LOTS WITHIN THIS DEVELOPMENT SHALL BE MASS GRADED. ALL GRADING SHOWN ON THE PLANS SHALL BE COMPLETED /N A SUBSEQUENT AND EXPED177OUS MANNER TO INSURE PROPER DRAINAGE AND FUNCTIONING OF PONDS. PHASING & TIMING OF THE POND CONSTRUCT70N WILL BE COORDINATED WITH THE ENGINEER & CITY OFFICIALS TO INSURE ALL SAFEGAURDS ARE /N PLACE TO MINIMIZE EROSION. INLET PROTECTION SHALL BE "TYPE B" PER THE DETAIL SHEET AND SHALL BE MAINTAINED THROUGH CONSTRUCTION. PONDING AREAS ARE TO BE GRADED FIRST TO A DEPTH OF 6 INCHES ABOVE FINAL GRADE. TEMPORARY POND SEED MIXTURE SHALL BE 100A MODIFIED AT A RATE OF 25 POUNDS PER ACRE. MULCH PER ABOVE RATE. UPON COMPLETION OF MASS GRADING, THE PONDS SHALL BE EXCAVATED TO FINAL GRADES, THUS REMOVING ANY SEDIMENTATION DURING CONSTRUCTION AND ALLOWING PROPER INFILTRATION. INSTALL SEEDED, STAKED FIBER BLANKETS ON LONG OR STEEP SLOPES (J. 1 OR HIGHER) SEE GRADING PLAN, GENERAL AREAS HATCHED. ,ON SH:TiONS WIUP POSTS AND Tr To E -HER 2 INCH SQUARE HARDWD01 PINE. OR STANDARD T- OF 0- SECTION STEEL POSTS. NOT EXCEED MAXIMUM PO'. SPACING OF 4 FT. O.C. ", M DIRECTION OF SURFACE FLOW USE LATH AND STAPDM TO ATTACH FABRIC TO WOOD POSTS. USE TIE S WIRES TO ATTACH FABRIC TO STEEL POSTS. USE HOG RINGS TO ATTACH FABRIC TO WIRE MESH PERSPECTIVE VIEW FABRIC (ORANGE IN COLOR) REINFORCE WITH SNOW FENCE. WIRE MESH. OR STIFF PLASTIC FENCE IN AREAS WHERE CONCENTRATED FLOWS OCCUR (SUCH AS SWALES. DITCHES. AND IN FRONT OF CULVERTS AND CATCHBASINS) -LAY THE FABRIC AGAMST THE SIDES AND BOTTOM OF THE TRENCH. BACKFILL MID COMPACT WITH A Iff VIBRATORY PLATE COMPACTOR P_ ANCHOR FABRIC IN SOIL JSUPPORT Pas SECTION VIEW TYPE 1 SILT FENCE DIVERSIONARY DIKE S WPPP NO TES I 4' MINIMUM I NOTE' WOOD OR METAL STAKE BOTTOM OF FABRIC IS —4"-24" BURIED IN TRENCH AS IT IS WHEN INSTALLED AS SILT FENCE MAXIMUM DISTANCE BETWEEN POSTS IS 4'. AN ADDITIONAL FILTER FABRIC POST MAY BE ADDED TO EACH SIDE DROP INLET WITH GRATE STRAW BALES STAKED WITH 2 STAKES PER BALE — BALES STAKED 12" TO 24" FROM INLET COMPACTED SOIL STAKED STRAW BALE TO PREVENT I FILTERED WATER PIPING E- , - -=,� INLET RUNOFF WATER WITH SEDIMENTlqqSTRAW BALE INLET SEDIMENT FILTERTYPE B ALL CONSTRUCTION ACTIVITIES TO BE IN ACCORDANCE WITH "CONSTRUCTION ACTIVITY REQUIREMENTS" AS DIRECTED IN PART /V, WHICH INCLUDE BUT ARE NOT LIMITED TO THE FOLLOWING: PIPE OUTLETS MUST BE PROVIDED WITH TEMPORARY OR PERMANENT ENERGY DISSIPATION WITHIN 24 HOURS OF CONNECTION TO A SURFACE WATER. SEDIMENT CONTROL PRAC77CES MUST BE ESTABLISHED ON ALL DOWN GRADIENT PERIMETERS BEFORE ANY UP GRADIENT LAND DISTURBING PRACTICES BEGIN. THESE PRACTICES SHALL REMAIN IN PLACE UNTIL FINAL STABILIZATION HAS BEEN ESTABLISHED /N ACCORDANCE WITH PART IV.G. ALL EXPOSED SOIL AREAS WITH A CON77NOUS POSITIVE SLOPE WITHIN 200 LINEAL FEET OF A SURFACE WATER, MUST HAVE TEMPORARY EROSION PROTECTION OR PERMANENT COVER FOR THE EXPOSED SOIL AREAS YEAR ROUND, ACCORDING TO THE FOLLOWING TABLE OF SLOPES AND TIME FRAMES: TYPE OF SLOPE TIME (MAXIMUM TIME AN AREA CAN REMAIN OPEN WHEN THE AREA STEEPER THAN 3:1 7 DAYS IS NOT ACTIVELY BEING WORKED) 10.1 TO 3:1 14 DAYS FLATTER THAN 10:1 21 DAYS THE TIMING OF THE INSTALLA77ON OF SEDIMENT CONTROL PRACTICES MAY BE ADJUSTED TO ACCOMODATE SHORT—TERM ACT7VIT7ES SUCH AS CLEARING OR GRUBBING, OR PASSAGE OF VEHICLES. ANY SHORT—TERM ACTIVITY MUST BE COMPLETED AS QUICKLY AS POSSIBLE AND THE SEDIMENT CONTROL PRACTICES MUST BE INSTALLED IMMEDIIATLEY AFTER THE ACTIVITY /S COMPLETED. HOWEVER, SEDIMENT CONTROL PRACTICES MUST BE INSTALLED BEFORE THE NEXT PRECIPITATION EVENT EVEN /F THE ACTIVITY /S NOT COMPLETE. ALL STORM DRAIN INLETS MUST BE PROTECTED BY APPROPRIATE BMPs DURING CONSTRUCTION UNTIL ALL SOURCES WITH POTENTIAL FOR DISCHARGING TO THE INLET HAVE BEEN STABILIZED. TEMPORARY SOIL STOCKPILES MUST HAVE SILT FENCE OR OTHER EFFEC77VE SEDIMENT CONTROLS, AND CANNOT BE PLACED /N SURFACE WATERS, INCLUDING STORM CONVEYANCES SUCH AS CURB AND GUTTER SYSTEMS, OR CONDUITS AND DITCHES. VEHICLE TRACKING OF SEDIMENT FROM THE CONSTRUCTION SITE MUST BE MINIMIZED BY BMPs SUCH AS STONE PADS, CONCRETE OR STEEL WASH RACKS, OR EQUIVALENT SYSTEMS. STREET SWEEPING MUST BE USED IF SUCH BMPs ARE NOT ADEQUATE TO PREVENT SEDIMENT FROM BEING TRACKED ONTO THE STREET. THE CONTRACTOR IDENTIFIED /N THE SWPPP MUST ROUTINELY INSPECT THE CONSTRUCTION SITE ONCE EVERY SEVEN (7) DAYS DURING ACTIVE CONSTRUCTION AND WITHIN 24 HOURS AFTER A RAINFALL EVENT GREATER THAN 0.5 INCHES IN 24 HOURS. ALL INSPECTIONS AND MAINTENANCE CONDUCTED DURING CONSTRUCTION MUST BE RECORDED /N WRITING AND THESE RECORDS MUST BE RETAINED WITH THE SWPPP /N ACCORDANCE WITH PART IIID BY THE CONTRACTOR RECORDS OF EACH INSPECTION AND MAINTENANCE ACTIVITY SHALL INCLUDE. A. DATE AND TIME OF INSPECTIONS; B. NAME OF PERSON(S) CONDUCTING INSPECTIONS; C. FINDINGS OF INSPECTIONS, INCLUDING RECOMMENDATIONS FOR CORREC77VE ACTIONS; D. CORRECTIVE ACTIONS TAKEN (INCLUDING DATES, TIMES AND PARTY COMPLETING MAINTENANCE ACTIVITIES); E. DATE AND AMOUNT OF RAINFALL EVENTS GREATER THAN 1/2 INCH (0.5 INCHES) IN 24 HOURS; AND F. DOCUMENTATION OF CHANGES MADE TO THE SWPPP AS REQUIRED IN PART III.A.4. PROJECT TYPE: RESIDENTIAL DEVELOPMENT TOTAL SITE AREA: +/— 6.1 ACRES TOTAL DISTURBED AREA: +/— 3.3 ACRES FINAL RUNOFF COEFFICIENT.' 0.68 BACK OF SIDEWALK A BACK OF CURB GRAVEL FILLED SANDBAGS ARE STACKED TIGHTLY. CATCH BASIN ri CURB INLET, ►A r- PONDING HEIGHT PLAN VIEW 1 CURB INLET SPILLWAY t _ �a-- I' ' -'IWW,�V ICATCH BASINI lo. I CERTIFY UNDER PENALTY OF LAW THAT THIS DOCUMENT AND ALL ATTACHNENTS WERE PREPARED NOTE: SECTION A - A QUALIFIED PERSONNEL PROPERLY GATHERED AND EVALUATED THE INFORMA77ON SUBMITTED. 1. PLACE CURB TYPE SEDIMENT BARRIERS ON DIRECTLY RESPONSIBLE FOR GATHERING THE INFORMATION, THE INFORMATION SUBMITTED IS, TO THE GENTLY SLOPING STREET SEGMENTS. WHERE SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING THE POSSIBILITY OF FINE AND WATER CAN POND AND ALLOW SEDIMENT TO SIGNED: --------------------------- SEPARATE FROM RUNOFF. EPIC DEVELOPMENT XVI, LLC 2. SANDBAGS. OF EITHER BURLAP OR WOVEN CONTRACTOR'S CONTRACTOR'S CERTIFICATION GEOTEXTILE FABRIC. ARE FILLED WITH GRAVEL, NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT THAT AUTORIZES THE STORM LAYERED AND PACKED TIGHTLY. AS PART OF THIS CERTIFICATION. 1 LEAVE ONE SANDBAG GAP IN THE TOP ROW FOR TO PROVIDE A SPILLWAY FOR OVERFLOW. SIGNED: ---------------- 4 INSPECT BARRIERS AND REMOVE SEDIMENT CURB INLET AFTER EACH STORM EVENT. SEDIMENT AND SEDIMENT BARRIER GRAVEL MUST BE REMOVED FROM THE TRAVELED WAY IMMEDIATELY POLLU77ON PREVENTION PLAN CERTIFICATION I CERTIFY UNDER PENALTY OF LAW THAT THIS DOCUMENT AND ALL ATTACHNENTS WERE PREPARED UNDER MY DIRECTION OR SUPERVISION IN ACCORDANCE WITH A SYSTEM DESIGNED TO ASSURE THAT QUALIFIED PERSONNEL PROPERLY GATHERED AND EVALUATED THE INFORMA77ON SUBMITTED. BASED ON MY INQUIRY OF THE PERSON OR PERSONS WHO MANAGE THE SYSTEM, OR THOSE PERSONS DIRECTLY RESPONSIBLE FOR GATHERING THE INFORMATION, THE INFORMATION SUBMITTED IS, TO THE BEST OF MY KNOWLEDGE AND BELIEF, TRUE, ACCURATE; AND COMPLETE. I AM AWARE THAT THERE ARE SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING THE POSSIBILITY OF FINE AND IMPRISONMENT FOR KNOWN VIOLATIONS. SIGNED: --------------------------- DEVELOPER CONTACT EPIC DEVELOPMENT XVI, LLC DATE -------------- —_ ----- CONTRACTOR'S CONTRACTOR'S CERTIFICATION CERTIFY UNDER PENALTY OF LAW THAT / UNDERSTAND THE TERMS AND CONDITIONS OF THE GENERAL NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT THAT AUTORIZES THE STORM WATER DISCHARGES ASSOCIATED WITH INDUSTRIAL ACTIVITY FROM THE CONSTRUC77ON SITE IDENTIFIED AS PART OF THIS CERTIFICATION. SIGNATURE FOR RESPONSIBLE FOR SIGNED: ---------------- CONTRACTOR GENERAL CONTRACTOR CONTRACTOR SIGNATURE ADDRESS CITY, STATE ZIP CODE PHONE NUMBER DA TE- ____----__ -- Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 wvvw.ry anengineering.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. Date GALPIN CROSSING TWINHOMES Chanhassen, MN for EPIC DEVELOPMENT, LLC Project No Digital Drawing Nome galpin-twinhomee-praCm-3.dwg Drown By GLG Checked By PMR Dote 3/16/06 Revisions Issued For: Date: Schematic Design Design Development Preliminary Review Final Review Bidding Construction PRELIMINARY STORM WATER POLLUTION PREVENTION PLAN Page P -3A 2006 RYAN ENGINEERING, INC. i - _ 50' SETBACK FROM O. H. W. L. RL UFF -;REEK - _ :: _-. _ _ 50' BLDG. SIB FROM - REAR PROPERTY LINE _ OU 1 LOT F I 7 � � I SAN MH Top= 954.9 i ^ APRON IE=953.0 7 STMH i� RE=956.5 IE=953.1 30' BLDG. SIB FROM Sop MH - � T \ SS EPSE o j»u��v--943.2± 2t - OU TLOT- --Ss EASE -\\�SE�- 5t i � \ - > SAN 4R- Top t- rs EP A �_�� ��_.,B Top= 960. �\ WETLAND BASIN N0. 3 /, EASES` -= _� _ \SSFgsF 40' OFFSET FROM B L 0 C K 0 N \ \ PRIMARY CORRIDOR i _ - - - L LINE 13 OUTLET CONTROL I _ l �� STRUCTURE I \� - \�aE MANENT MN _ 20' WIDE DRIVE Fq5 , \s f ORAI 'Gi EASEMENT / I 12 _ \ - ` PERMANENT MNDOT pp�p � 11 � RAINAGE EASEMENTr4V& 953.0' I HWL9549 1 1 --- 76.5 --- -�� /� 10 \ REMH 96 \ 1 r, n X9435 y I• wl/ • z 4 5K� I w 3 i s m WEST PROPERTY LINE '1 I N `✓ \` PROPOSED \ STO. SEWER `5� I I � I / Ul �I r m I / o� / f / Wl 0I I OUTLET=949.30 LEGEND EXISTING PROPOSED Sanitary Sewer 4 SANITARY SEWER -4- WATER WATER - I HYD. W/VALVE HYD. W/VALVE -I--*} STORM SEWER STORM SEWER -14- WETLAND BLUFF CREEK - - -BCPC- - - PRIMARY CORRIDOR BOUNDARY on• 7 5 6 -MH / / MH71j H o \\�__50­BLDG. SIB FROM SS Fqs FRONT PROPERTY LINE F\ MH " RE=966.3 IE�sTUMINOU- S !- --- -- PATH �' -I 1-8=q1 I, RE -9 / /IEZ;79 4.5 -PROPOSED 8" WEST RIM= 2 IE=9557,41$ . NV= 57 S ` SAN. SEWER RIM -962.20 « 7 RCP a 0.5% s?H- i 2 „ /RE=964.INV=956.12 - CC 1=960.2�G - HYD. / / / LL / FE E S95 / ��F F CB / =963.5 5� / =959.5 p RE= 958.0 / RE -H6 \\ GQL? /CONNECT TO IE=953.7/ 1 9 .0 / EXISTING 18"WM QP / 0 0\J LL EES 54.9 ;t• i RIM=960.57 / INV=950.0 RIM -960.57 INV=95SY55 �\ /IMPERVIOUS AREA CALCS GENERAL UTILITY NOTES TOTAL SITE = 265,595 SF WETLAND AREA = 27,577 SF IMPERVIOUS AREA = 51,081 SF (22,845 SF PVMT + 12 UNITS ® 2,353 SF EA.) TOTAL IMPERVIOUS AREA/(TOTAL SITE - WETLAND) = % HARD SURFACE 51, 081/265, 595 - 27,577 = 21Z HARD SURFACE (REQUIRMENT <= 30%) 960.51 1l RIM=963.68' INV=959.83 n x I I \ SITE DATA GROSS SITE AREA RIGHT OF WAYS NET SITE AREA SITE DENSITY Sq. Ft. Acres 265,595± 6.10E 0± O± 265,595± 6.10± 12 SINGLE-FAMILY DWELLING UNITS ON 6.7 AC. = 2.0 D.U./AC. - GROSS 72 SINGLE-FAMILY DWELLING UNITS ON 5.1 AC. = 2.0 D.U./AC. - NET N� THE CONTRACTOR SHALL VERIFY ALL EXISTING COND1770AIS PRIOR TO CONSTRUCTION AND NOTIFY THE OWNER OF ANY DIFFERENCES. ALL WORK SHALL BE CONSTRUCTED /N ACCORDANCE WITH THE CITY STANDARD SPECIFICATIONS, PROJECT SPECIFICATIONS OR AS MODIFIED HEREIN. UNLESS OTHERWISE NOTED, OR AS SPECIFIED IN THE ABOVE N07F ALL MATERIALS, CONSTRUCTION TECHNIQUES AND TESTING SHALL CONFORM TO THE 1999 ED. OF THE "STANDARD UTILITIES SPECIFICATIONS FOR WATER MAIN AND SERVICE LINE INSTALLATION AND SANITARY SEWER AND STORM SEWER INSTALLATION BY THE CITY ENGINEERING ASSOCIA77ON OF MINN." AND TO THE "STANDARD SPECIFICATION FOR HIGHWAY CONSTRUCTION" MINN. DEPT. OF TRANS., 2000 EDITION, INCLUDING THE CURRENT ADDENDUM. THE CONTRACTOR SHALL RECEIVE THE NECESSARY PERMITS FOR ALL WORK OUTSIDE OF THE PROPERTY LIMITS. SEE ARCH. PLAN FOR EXACT BLDG. LOCATION. SEE SITE PLAN FOR LAYOUT DIMENSIONS. SERVICE ENTRY LOCATIONS TO BE COORDINATED WITH THE ARCHITECT. VERIFY EXISTING INVERT LOC. & ELEV. PRIOR TO BEGINNING CONSTRUCTION. THE WATER SERVICE SHALL BE INSTALLED WITH A MIN. OF 75 FT OF COVER. ALL STORM SEWER PIPE SHALL BE CLASS 5 UNLESS OTHERWISE NOTED. THE CONTRACTOR SHALL CONTACT "GOPHER STATE ONE CALL" FOR FOR UTILITY LOCATIONS PRIOR TO UTILITY INSTALLATION. 0, 50' 100' 150' Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the Slate of Minnesota. Signature Registration No. Date GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No. Digitcl Drawing Name galpn-twinhomes-pre n-5.dwg Drown By GLG Checked By PMR Dote 3/16/06 Revisions 3/27/06 Per City Review Conynente Issued For Date; Schematic Design Design Development . Preliminary Review Final Review Bidding Construction Preliminary Site and Utility Plan Page P-4 L / J � L � 7 � \ J 0, 50' 100' 150' Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the Slate of Minnesota. Signature Registration No. Date GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No. Digitcl Drawing Name galpn-twinhomes-pre n-5.dwg Drown By GLG Checked By PMR Dote 3/16/06 Revisions 3/27/06 Per City Review Conynente Issued For Date; Schematic Design Design Development . Preliminary Review Final Review Bidding Construction Preliminary Site and Utility Plan Page P-4 vnm Ilinll I t1(41'111 IIll' k, 111( 12 EE 12 EL B EL B 18 18 APPROXIMATE TREE CANOPY FROM AERIAL PHOTOGRAPHY —_`E,4 — \ BE ,4 -- BEy - \ 4 BE 16 BE 1B � SS si— BE 6H 12 BE 8.2 \ 8E 8.2 BE B BE 16.3 ey �° - cn 48M 48 —____ DB Id -- 408E B � B Fl B -- �AQc --� —'SSE �-�6 A e RE ZD A UP �' . --- N CEL I OU TLOT - -- //�� a+ 32 1 - jS EPyt -___ `\ BE B \\ \ E T!_APID BASIf I"10 3 / r IF 14 B L O C K O N -- — \\\ \\ BE 6 A,0 aA,4 I BA 16 BE 6 " " T � BE e \ \ � � 13 ,. BE �, \ BE 8 - ` \ \ � A H BA'-8.3� ?A 1..-qb`IbSA 8 �O R \ `\ \W_ 14 8E 1♦ / eAE ID r 14� 1 BE � BE 6 L SfAsf Et4 p `. BE '21 1r/� BE 14 / 1 \ BE 16 Bu a KID / \ e 1° 9 10 8 7 aft.'t' Asf � BA B WEST 78 S7�?EFj�-r �. 1 � � I � 1 I f / I � m BASELINE TREE CANOPY COVERAGE CALC. PLANT LIST Z / / 0 I / ,MP OTY COMMON NAME SIZE i TOTAL PLAT AREA = 265,595± SF m WETLAND = 27,577± SF 15 LARGE TREES TO INCLUDE THE FOLLOWING f I /PATMORE ASH 2-1/2_" B&B NET PLAT AREA = 238'018± SF GREENSPIRE LINDEN 2-1/2 B&B AMERICAN LINDEN 2-1/2"" B&B > EMERALOD LUSTTRE MAPLE 2-1/2 " B&B I BRUSH TREE COVERAGE = 33,490± SF NORTHWOOD MAPLE 2-1/2 B&B / / IMPERIAL HONEYLOCUST 2-1% (EXCLUDING WETLANDS) 2"" B&B m 0 0 o TREE CANOPY COVERAGE 33,490± SF (14% EXISTING COVERAGE) 15 BLACK HILLS > 6' High COLORADO SPRUCE > 6' High OR SCOTCH PINE > 6' High AUSTRIAN PINE > 6' High FOUNDATION PLANTINGS - TWINHOMES REQUIRED TREE CANOPY COVERAGE CALC. C/2 ® C/2 Key Name Oty./Unit Size 9 A MINT JULEP JUNIPER 6 #3 CONT. A/3A/3 B SCANDIA JUNIPER 2 /3 CONT. C DWARF WINGED EUON YMUS 4 5 CONT. 4y. E/2 E/2 D MISS KIM LILAC 9 2 CONT. 4IRRIGATION E GOLDFLAME SPIREA 4 #2 CONT. B�1 D/4 NOTE: ALL PLANTINGS SHALL BE LANDSCAPE EDGED — B/1 AND ROCK MULCHED (ALSO UNDER DECKS) SYSTEM WILL BE REQUIRED FOR D/1 FOUNDATION PLANTINGS. TOTAL EXISTING CANOPY COVERAGE ON SITE = 14% REQUIRED CANOPY COVERAGE (LOW DENS. RESID.) = 25% REPLACEMENT REQUIRED: TARGET CANOPY — EXISTING CANOPY X UPLAND AREA DIVIDED BY 1089 (25%-14% = 25%) 11% X 238,018/1089 = 24 TREES PLUS EXISTING COVERAGE REMOVED (1%) X 1.2 (PENALTY) DIVIDED BY 1089 2,380 X 1.2/1089 = 3 TREES TOTAL TREE REPLACEMENT REQUIRED = 27 TREES REPLACED = 30 i NOTES: BASED UPON PLANT AVAILABILITY, THE DEVELOPER RESERVES THE RIGHT TO SUBSTITUTE THE ABOVE TREES WITHIN THE SAME CATAGORY WITH PRIOR APPROVAL FROM THE CITY OF CHANHASSEN. THE TREES PLANTED WILL BE BASED UPON AVAILABILITY IN THE SPRING OF 2002 AT WHICH TIME A PLAN SHALL BE SUBMITTED. TREES MUST BE FROM THE APPROVED LIST OF DESIRABLE SPECIES. (PREFERENCE GIVEN FOR TREES DESIGNATED AS NATIVE) NO MORE THAN ONE–THIRD (1/3) OF THE TREES MAY BE FROM ANY ONE (1) TREE SPECIES. TREES SHALL BE USED THAT ARE ARE APPROPRIATE TO THE SOIL CONDITIONS FOUND ON THE SITE AND TREES SHALL AVERAGE AT LEAST TWO–AND–ONE–HALF–INCH CALIPER AND MAY BE A MINIMUM OF ONE–AND–ONE–HALF–INCH CALIPER. NOT LESS THAN TWENTY (20) PERCENT OF THE TREES SHALL BE CONIFERS. CONIFER TREES SHALL AVERAGE SEVEN (7) FEET AND SHALL BE A MINIMUM OF SIX (6) FEET IN HEIGHT. TREES SHALL BE FROM CERTIFIED NURSERY STOCK AS DEFINED AND CONTROLLED BY MINNESOTA STATUTE SECTIONS 18.44 THROUGH 18.61, THE PLAN PEST ACT. 0' 50' 100' 150' \ R7 an Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952)380-5000 www.ryanonginearing.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. Dote GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No Digital Drowing Nome galpin-twinhomes-prelim-5.dwg Drawn By GLG Checked By PMR Dote 3/16/06 Re visions 3/27/06 Per Cfty Review Commente Issued For Date: Schematic Design Design Development Preliminary Review Final Review Bidding Construction Preliminary Tree Inventory/ Landscape Plan Page P-5 � t \ � J 0' 50' 100' 150' \ R7 an Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952)380-5000 www.ryanonginearing.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. Dote GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No Digital Drowing Nome galpin-twinhomes-prelim-5.dwg Drawn By GLG Checked By PMR Dote 3/16/06 Re visions 3/27/06 Per Cfty Review Commente Issued For Date: Schematic Design Design Development Preliminary Review Final Review Bidding Construction Preliminary Tree Inventory/ Landscape Plan Page P-5 2006 RYAN ENGINEERING, INC. BLUFF CREEK - .. ,e 12 EE 12 EE e B eE APPROXIMATE TREE CANOPY — — B"° FROM AERIAL PHOTOGRAPHY 18 55E _ -� -SS EgSf�_ JK 82 6 9E 6.1 BE 6 9E 16 J° CN 46 12 HE ♦E 8 N w r__ 6 EE a SS E�c I A 6 P 6 BE 30 A E&4L/' . 5Ep5�/ OUTLOT �- _�� ` ft,• CN 37 �F \ as SE. _____ _ l r r�BASIN rl� o. B L O C K O N E —. St K ° \ \ \ \ BE O SBF 6` P E A 10 A �4 i' 'f. BE 6 BA 8AA / \ BA 14 BE H A 14 \ I � \ 9i •♦ BP ♦ B � `O A t 16 HE JS - / +~sem BE B BPB A Of 14 HE 20 BE 16 POND �. � I 11 12 � NWL 953.0 au 6 B o , Fift954.9 `----- 10 n a t I ® .41 1 W GED EUONYMUS COMPACT AMUR MAPLE 1 18'-24" CONTAINER CHARLES JOY LILAC 9 SMALL TREES TO INCLUDE THE FOLLOWING: > / SMALL TREES TO INCLUDE THE FOLLOWING: SPARKLER CRABAPPLE 2" B&B SPARKLER CRABAPPLE SPRING SNOW CRABAPPLE 2" B&B SPRING SNOW CRABAPPLE JAPANESE TREE LILAC BUFFER YARD TYPE B REQUIREMENTS JAPANESE TREE LILAC 6 / REQUIREMENTS PER 100 LF OR RIGHT OF 2 OVERSTORY TREES WA1 AMUR MAPLE CLUMP / 2 UNDERSTORY TREES LARGE TREES TO INCLUDE THE FOLLOWING: PATMORE ASH GREENSPIRE LINDEN 2 1/2" B&B 2 1/Y B&B 6 SHRUBS AMERICAN LINDEN 2 1/2 B&B AMERICAN LINDEN EMERALOD LUSTTRE MAPLE 2 1/2" B&B EMERALOD LUSTTRE MAPLE NORTHWOOD MAPLE 2 1/2 B&B NORTHWOOD MAPLE PIN OAK 21/2" B&B PIN OAK IMPERIAL HONEYLOCUST PLANT LIST - WEST 78TH ST. - 860' PLANT LIST - GALPIN BLVD. - 210' / SYMBOL OTY COMMON NAME SIZE OTY _ )MMON NAME SIZE / / 9 BLACK HILLS SRUCE / COLORADO SPRUCE 6' B&B 2 BLACK HILLS SRUCE / COLORADO SPRUCE 6' B&B w / 54 SHRUBS TO INCLUDE THE FOLLOWING 12 SHRUBS TO INCLUDE THE FOLLOWING: / ISANTI DOGWOOD 18"-24" CONTAINER ISANTI DOGWOOD 18"-24" CONTAINER WENTWORTH VIBRUNUM CARDINAL DOGWOOD k5 CONTAINER 18"-24" CONTAINER WENTWORTH VIBRUNUM CARDINAL DOGWOOD (j5 CONTAINER 18"-24" CONTAINER WINGED EUONYMUS 18"-24" CONTAINER N COMPACT AMUR MAPLE 18"-24" CONTAINER W GED EUONYMUS COMPACT AMUR MAPLE CHARLES JOY LILAC 18'-24" CONTAINER CHARLES JOY LILAC 9 SMALL TREES TO INCLUDE THE FOLLOWING: 2 SMALL TREES TO INCLUDE THE FOLLOWING: SPARKLER CRABAPPLE 2" B&B SPARKLER CRABAPPLE SPRING SNOW CRABAPPLE 2" B&B SPRING SNOW CRABAPPLE JAPANESE TREE LILAC 2" B&B JAPANESE TREE LILAC AMUR MAPLE CLUMP 6' B&B AMUR MAPLE CLUMP 18 LARGE TREES TO INCLUDE THE FOLLOWING: 4 LARGE TREES TO INCLUDE THE FOLLOWING: PATMORE ASH GREENSPIRE LINDEN 2 1/2" B&B 2 1/Y B&B PATMORE ASH ,REENSPIRE LINDEN AMERICAN LINDEN 2 1/2 B&B AMERICAN LINDEN EMERALOD LUSTTRE MAPLE 2 1/2" B&B EMERALOD LUSTTRE MAPLE NORTHWOOD MAPLE 2 1/2 B&B NORTHWOOD MAPLE PIN OAK 21/2" B&B PIN OAK IMPERIAL HONEYLOCUST 2 1/2 B&B IMPERIAL HONEYLOCUST NOTES: BASED UPON PLANT AVAILABILITY. THE DEVELOPER RESERVES THE RIGHT TO SUBSTITUTE THE ABOVE TREES WITHIN THE SAME CATAGORY WITH PRIOR APPROVAL FROM THE CITY OF LAKEVILLE. THE TREES PLANTED WILL BE BASED UPON AVAILABILITY IN THE SPRING OF 2002 AT WHICH TIME A PLAN SHALL BE SUBMITTED 18-24 CONTAINER 18"-24' CONTAINER 18"-24" CONTAINER 2" B&B 2" B&B 2" B&B 6' B&B 2 1/2" B&B 2 1/2" B&B 2 1/2" B&B 2 1/2B&B 2 1/2" B&B 2 1/2" B&B 2 1/2 B&B •A� \ � J 660!!!1 0' 50' 100' 150' Rya n Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior. MN 55331 (952) 380-5000 www.ryanengineering.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the Slate of Minnesota. Signature Registration No, Date GALPIN CROSSING TWINHOMES Chanhassen, MN LI MEPIC DEVELOPMENT, LLC Project No Digitol Drawing Nome galpin-twiihomes-preim-4.dwg Drown By GLG Checked By PMR 3/27/06 Revisions Issued_ For Date; Schematic Design Design Development . Preliminary Review Final Review Bidding Construction Preliminary Buffer Yard Planting Plan Page P-6 Z 2006 RYAN ENGINEERING. INC. Preliminary Plans For GALPIN CROSSING TWINHOM S TP SITE 410 m Q 78TH ST. W �giH ST. W HWY. 5 HWY. 5 m GGVV�ER z BLVD z W a o z Q m J Q% W � N Q Q = tY D O 3 Of NORTH W ^� \A/VYTV \IAD NOT TO SCALE Chanhassen, Minnesota DEVELOPER: CIVIL ENGINEER: EPIC R y an DEVELOPMENT, LLC Engineering 9820 Sky Lane LAND DEVELOPMENT SERVICES Eden Prairie, MN 55347 (612) 730-2814 434 Lake Street Excelsior, MN 55331 (952) 380-5000 (952) 380-5010 (Fax) www.ryanengineering.com -my OF CHANW SQ r, RECEIVE, - MAR 1 7 2ou6 HANHASSEN'L. - GALPIN CROSSING TWINHOMES SUBMITTED 3/17/06 1 2006 RYAN ENGINEERING, INC. V, S80 -17'47"E 77, 1 �1 B _ _ S87'1 1'47"E FF -F - . - -100-40' REEK — S7 81147 S? ajd'¢�, - 1` .w f H < : fA P - . .��♦x _ =AN MH n OCeG�' -- ---BCp ��/3 03'13"E 5r 57 Top= 9603 / \ \ N8 74.98' SS S89'56' Z7�'"E� �r PARCEL A '`BCPC,�� )1'2 u—BCPC---� u I 8„ WEST 78 ; I � / f ; J -0 / mO U LEGEND Sanitary Sewer --: — WATEP HYL). W/VALVE STORM SEWER WETLAND BLUFF CREEK — — —BCPC— — — PRIMARY CORRIDOR BOUNDARY PROPOSED SANITARY SEWER —4 WATER — HYD W/VALVE —1—�} STORM SEWER —p-- i Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952)380-5000 www.ryanengineering.com r ! r • i " h rVr GALPIN CROSSING TWINHOMES Chanhassen. MN for MEPIC DEVELOPMENT, LLC galpin - twmhomea-prelim-3.dwg GLG PMR 3/16%06 ;sued For Date chematic Design >esign Development , reliminary Review inal Review adding onstruction Existing Conditions age P-1 2006 RYAN ENGINEERING, INC. Uu I 0T OWNER - RALPH PAMPERIN & BARBARA ELSETH 7719 VASSERMAN TRAIL CHANHASSEN, MN 55317 I OWNER. LAWRENCE & MICHAELE MARTIN 7725 VASSERMAN TRAIL CHANHASSEN, MN 55317 I OWNER: CHARLES & GAIL GALINO 7729 VASSERMAN TRAIL CHANHASSEN, MN 55317 7 OWNER: DIANE ERICKSON, TRUSTEE 7735 VASSERMAN TRAIL LLJ CHANHASSEN, MN 55317 S80-111 4 7" f OWNER: 77.77' THEODORE & MARLENE BENTZ S8701 1'47"E 7300 GALPIN BLVD. 1 40' EXCELSIOR, MN 55331 j —0. — —� S79-11'47. X194.14' f / —SS 4j»f .11 ' N 55 APSE o/ �SSS EASES ` Np � � SS EASES � -- EASE--_] p/ O \ \s s SS APSE OU TLOT\�. N82•o3'i3"E A 92' SASE--- _ _4 ' mss Eq 74.9a�sg8. P B L 0 C K O N,\ s89•56'47"E Z r�� �. 101.72' O 54' w gQ� el 13 45' 45' A 4. o hg5 P° 45 PERMANENT MNDGT_ S DRAINAGE EASEMENT p l6 45' SS 1 ^L egse Fgse cD 1 n LA (r+ \ �25' CD PER AG EEASEMENT \ N 01 OWNER: J 143 Ig•F \ \ o EASEMENT (ENTIRE LOT 13) \\SS eqs e \ / Q,<1 WEST 78 slnE v I /A ) ROBERT & GABRIELLE GRIFFITH 83 7739 VASSERMAN TRAIL 1/or CHANHASSEN, MN 55317 5 � _ z 83 _ OWNER. JAMES & AMELIA CHMURA TRAIL h 7745 VASSERMAN W 4 CHANHASSEN, MN 55317 OWNER: o�P / EPIC DEVELOPMENT XVI, LLC \ / 9820 SKY LANE OWNER: HELLEN ERNST / p, EDEN PRAIRIE, MN 55347 \ THOMAS & > 7749 VASSERMAN TRAIL CHANHASSEN, MN 55317 D` / . GIERALD & PEGGY WOLFE 2 7755 VASSERMAN TRAIL CHANHASSEN, MN 55317 / OWNER: MICHAEL & CAROLYN SHIELDS7759 TRAIL CHANHASSEN,MAN MN 55317 m / DEVELOPMENT DATA LOT AREA DATA / / --- - - - / M I / ZONING: EXISTING ZONING. Agriculctural SINGLE FAM. DEVELOPMENT AREA 6.10± +/- AC / p / PROPOSED ZONING: Planned Unit Development CITY LAND USE PLAN Rd t' 1 (1 2-4 /1-;f FA I I ' OWNER: l KLINGELHUTZ DEVELOPMENT 350 HWY 212 E, PO BOX 89 I CHASKA, MN 55318 \ \ OWNER: \ \ \ CITY OF CHANHASSEN \ PO BOX 147 \ \ CHANHASSEN, MN 55317 0. / L_ 0 T V � 4, es r en a s cre / u, PROPOSED LAND USE. 2.0 Units/Acre rn LOT NUMBER AREA S.F. / LEGAL DESCRIPTION BLOCK 1 1 3,735± / 0 2 3,735-± WRITTEN DESCRIPTION TO BE SUBMITTED. 3 3, 735±4 3,735± 5 3, 735± 6 3, 735± DEVELOPER. 7 3, 735±8 3, 735± LEGEND EPIC DEVELOPMENT XVI, LLC 9 3, 735± 9820 SKY LANE 10 3, 735± EDEN PRAIRIE, MN 55347 11 3,7,35.± EXISTING PROPOSED 12 5,735-± Sanitary Sewer 4— — SANITARY SEWER —1 13 119,968± WATER WATER —1 OUTLOT A 100,807± HYD. W/VALVE HYD. W/VALVE —1— } Total BLOCK 1 265,595± STORM SEWER STORM SEWER Avg. Lot Area 3,735± WETLAND Total Plot Area 265,5951 BLUFF CREEK — — —BCPC— — — PRIMARY CORRIDOR 0' 50' 100' 150' BOUNDARY R7 an Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. Date GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No Digital Drawing Name gaIp1n-twk**mes-pre1mm3.dwg Dra wn By GLG Checked By PMR Date 3/16/06 Revisions Issued For Date: Schematic Design Design Development Preliminary Review Final Review Bidding Construction Preliminary Plat Page P-2 R7 an Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. Date GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No Digital Drawing Name gaIp1n-twk**mes-pre1mm3.dwg Dra wn By GLG Checked By PMR Date 3/16/06 Revisions Issued For Date: Schematic Design Design Development Preliminary Review Final Review Bidding Construction Preliminary Plat Page P-2 CCS 2006 RYAN ENGINEERING, INC. UUiL-U1 �j EX. MH RIM:955.50 INV=943.66 BL IFF FREE KHE 16 6E 18--=�— BE 13 El ,z B El 9 KIDBE 1, L e 14 —\� BE 11 � ,6 H BE IB 2 \ PSE/ Na ry SSS H 14 1 - _ ` a IB % H ,55 EASES_ aE a BE Bz Io -�BE 6.2 8E 8- �- No ry �B 1za' e..eE B ¢ B -+6 E°�e' - _ _ .B / ~SS EASE—_. _> o ®6 EASE� A6 A 6 BE 20 A �� \ ` 0 U TLO T_ - - �= 14 \ SEF ���--- as WETLAND BASIN N0. 3 A � — _ BE 14 BEB P,yo�m // 1 SS BE ,s I ^� —�\ Eq Se \.a - BA( 14 t�L �SS.O /i/.� OF WETLANDB O8 \ \ BE - - - \ A 6 A 10 AF�- E� \ BE 6 E1^` �.� � 9L+ \ \ � BA 16 HE 8 BA i ST -5 V \ \ \ BE 14 BA „ ST -4 1 V \ BE B A 14 BA_�.3. \ B ---- I 956 aA,2 A,0\ ^� \ \ \ \ 1{ UA ,l 1A 1, 10It A L6 \\ 1 BA B - r A'11 A 12 g 957 eCPC� sS BE 1, \ . BE B 1 3 957 12 4 £\ , \ \f �F 9E ]B - BE ,2.1 957 1 \ \� 1�E t6.3 K 10 16 J \ W 6 BE 10 ) Q 10 \\ 9 ��----cirPr_--.. 1 / 9�j� J �' "� v FSI 9E 967 967 \: �-�,N1 -94 " ST -2 411� ST -3 9 8 967 i 1 C�� 4 958 1 g67 % � 9Zg74g� \\SSEgSf\ i 958 _ v , 3 5 6 966 � – ab -�� B BITUMINOUS pqr�_ o'er 968_q1P 51 RM— 5600 00 96S,S N 0) 0) Ww WEST 2 73/lrd� o� n � O'S ' `\ � 7 � U ST -1 RIM=962.20 _—_c< 27" cr RC P 51 NV=956.12 — — —�— — _ 0,5 h A 00 1 96� _ — p / �c O) FES / �`bi \ / ORANACE Nr 4rvo ENT // 'I M=965.03 964 �_ 9 / � a 6rL/ ` / L / V=958.79 . 3E / 21" RCP / 1 965.78 '° 5 / QP RIN4=960.57 / INV=950.0 RIM=960.5 - / NV=951Y55 / /I / -1 1 \ / M I / / �IQ i ` �IIi N RIM=963-68 / INV=959.83 I I M— 6 .58 / /\ V= 5.80 CONVENIENCE STORE 1ST FL. ELEV =967.25 \ i I o`Q I LEGEND y F� OUTLET=949..30 I >/ I 927 EXISTING CONTOURS PROPOSED CONTOURSEXISTING SOIL BORING (BRAUN INTERTEC) ST -2 WETLAND BLUFF CREEK RI - -BCPC- - - PRIMARY CORRIDOR BACK YARD ELEV. (LO) SILT FENCE SANITARY SEWER -4- - BOUNDARY BASEMENT ELEV. (WO) WATER — I - - 25.0 GENERAL HOUSE PAD PREP. AREA EXISTING SPOT ELEVATION HYD. W/VALVE —I- LO HOUSE TYPE Xg50 PROPOSED SPOT ELEVATION STORM SEWER —44 27.0 GARAGE FLOOR ELEVATION PROPOSED 815.5 FINISHED FLOOR ELEVATION STORM SEWER .44- 0' 50' 100' 150 RFan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. Date GALPIN CROSSING TWINHOMES Chanhassen, MN for EPIC DEVELOPMENT, LLC Project No Digital Drawing Name g*h-twinhomea-pre1rn-3.dwg Drown By GLG Checked Byp��p PMR Date 3/16/06 Re visions Issued For: Date: Schematic Design Design Development . Preliminary Review Final Review Bidding Construction Preliminary Grading and SWPP Plan Page P-3 II 1 2006 RYAN FN(dINFFRING, INC. MCN 14 -106'Ll MI WNMUM THICKNESS 50 FOOT MINIMUM LENGTH MNDOT STANDARD SPECIFICATION 1753 TYPE V PERMEABLE GEOTEXTILE FABRIC MATERIAL BENEATH THE ROCK 1 TO 2 INCH DIAMETER WASHED ROCK, NNDOT STANDARD SPECIFICATION 3137 CA -1, CA -2, CA -3 OR EQUAL COARSE AGGREGATE 24 INCH HIGH CUT-OFF BERM NOTE: ROCK CONSTRUCTION ENTRANCE SHOULD BE A MINIMUM HEIGHT OF 2.0' AND CONTAIN MAXIMUM SIDE SLOPES OF 4:1. 10 FOOT Who" WIDW ROCK CONSTRUCTION ENTRANCE GENERAL GRADING AND DRAINAGE NOTES CONTRACTOR SHALL CONTACT GOPHER STA7E "ONE CALL" FOR UTILITY LOCA77ONS AT 454-0002 THE CONTRACTOR SHALL VERIFY THE LOCATION AND ELEVAT70N OF EXISTING UTILI77ES AND TOPOGRAPHICAL FEATURES WITH THE OWNERS AND FIELD—VERIFY PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL IMMEDIATELY NOTIFY THE ENGINEER OF ANY DISCREPANCIES OR VARIATIONS. ALL CONTOURS AND SPOT ELEVATIONS ARE SHOWN TO FINISHED SURFACE/GUTTER GRADES UNLESS SHOWN OTHERWISE. REFER TO PAVING PLAN FOR DETAILED SPOT ELEVATIONS, GRADE PERCENTAGES, AND VERTICAL CURVE INFORMATION. ALL SILT FENCE SHALL BE IN PLACE PRIOR TO INITIATION OF EARTHWORK AND SHALL BE MAINTAINED UNTIL VIABLE TURF OR GROUND COVER IS ESTABLISHED, AT WHICH TIME IT SHALL BE REMOVED. TEMPORARY PONDING, DIKES, HAYBALES ETC., REQUIRED BY THE CITY SHALL BE INCIDENTAL TO THE GRADING. THE CONTRACTOR SHALL USE A ROCK CONSTRUCTION ENTRANCE ACCORDING TO THE DETAILS. ALL STREETS DISTURBED DURING WORKING HOURS MUST BE CLEANED AT THE END OF EACH WORKING DAY. GRAVEL & FILTER FABRIC SHALL BE INSTALLED PER DETAIL AT ALL CATCH BASINS (INCIDENTAL). THE CONTRACTOR SHALL INSURE POSITIVE DRAINAGE IS MAINTANED FROM THE SITE AT ALL TIMES. CONTRACTOR SHALL BE RESPONSIBLE FOR TEMPORARY DITCHES, PIPING, OR OTHER MEANS REQUIRED TO INSURE PROPER DRAINAGE DURING CONSTRUCTION. LOW POINTS IN ROADWAYS OR BUILDING PADS MUST BE PROVIDED WITH A POSITIVE OUTFLOW. WITHIN 7 DAYS OF COMPLETION OF GRADING, ALL NEWLY GRADED SLOPES SHALL BE SEEDED, FERPLIZED AND MULCHED IN ACCORDANCE WITH THE CITY SPECIFICATIONS. SEED SHALL BE MIXTURE NO. 50A AT A RATE OF 75 POUNDS PER ACRE. MULCH MATERIAL SHALL BE TYPE 1 PLACED AT OF 2 TONS PER ACRE. ALL PONDS SHALL RECEIVE A WETLAND SEED MIXTURE NO. 25A ABOVE THE NWL PER CITY SPECIFICATIONS. ALL UPLAND AREAS DISTURBED AS A RESULT OF CONSTRUCT70N ACTIVITIES SHALL BE IMMEDIATELY RESTORED WITH SEED AND DISC—MULCHED, COVERED WITH A WOOD—FIBER BLANKET OR SODDED WITHIN TWO WEEKS OF COMPLETION OF EACH ACTIVITY IN ACCORDANCE WITH THE CITY'S BEST MANAGEMENT PRACTICE HANDBOOK. BUILDING PAD HOLD DOWN SHALL BE 1'-0". ROADWAY HOLD DOWN SHALL BE PER DETAIL SHEET. ALL LOTS WITHIN THIS DEVELOPMENT SHALL BE MASS GRADED. ALL GRADING SHOWN ON THE PLANS SHALL BE COMPLETED IN A SUBSEQUENT AND EXPED177OUS MANNER TO INSURE PROPER DRAINAGE AND FUNCTIONING OF PONDS. PHASING & 77MING OF THE POND CONSTRUCTION WILL BE COORDINATED WITH THE ENGINEER & CITY OFFICIALS TO INSURE ALL SAFEGAURDS ARE IN PLACE TO MINIMIZE EROSION. INLET PROTECTION SHALL BE "TYPE B" PER THE DETAIL SHEET AND SHALL BE MAINTAINED THROUGH CONSTRUCTION. PONDING AREAS ARE TO BE GRADED FIRST TO A DEPTH OF 6 INCHES ABOVE FINAL GRADE. TEMPORARY POND SEED MIXTURE SHALL BE 100A MODIFIED AT A RATE OF 25 POUNDS PER ACRE. MULCH PER ABOVE RATE. UPON COMPLETION OF MASS GRADING, THE PONDS SHALL BE EXCAVATED TO FINAL GRADES, THUS REMOVING ANY SEDIMENTATION DURING CONSTRUCTION AND ALLOWING PROPER INFILTRATION. INSTALL SEEDED, STAKED FIBER BLANKETS ON LONG OR STEEP SLOPES (3: 1 OR HIGHER) SEE GRADING PLAN, GENERAL AREAS HATCHED. JOIN SECTIONS WRAP Pp4I5 AND TIE TOGETHER 2 MCH SOUARE HARDWOO PINE. OR STANDARD T- 0 U -SECTION STEEL POSTS. NOT EXCEED MAXIMUM PO SPACING OF 4 FT. O.C. X, Y DIRECTION OF SURFACE FLOW VSE LATH ANO ST TO ATTACH FABRIC TO WOOD POSTS. USE TIE WINES TO ATTACH FABRIC TO STEEL POSTS. USE HOG RINGS TO ATTACH FABRIC TO WIRE MESH PERSPECTIVE VIEW FABRIC (ORANGE IN COLOR) REINFORCE WITH SHOW FENCE, WIRE MESH, OR STIFF PLASTIC FENCE IN AREAS WHERE CONCENTRATED FLOWS OCCUR (SUCH AS $WALES. DITCHES. AND M FRONT OF CULVERTS AND CATCHBASINS) -LAY THE FABRIC AONNST THE SIDES AND BOTTOM OF THE TRENCH, BACKFILL ifAND COMPACT WITH A VIBRATORY PLATE COMPACTOR FABRIC IN SOIL .ANCHOR SUPPORT Post SECTION IN SOIL VIEW TYPE 1 SILT FENCE DIVERSIONARY DIKE SWPPP NOTES NOTE: BOTTOM OF FABRIC IS BURIED IN TRENCH AS IT IS WHEN INSTALLED AS SILT FENCE. MAXIMUM DISTANCE BETWEEN POSTS IS 4'. AN ADDITIONAL POST MAY BE ADDED TO EACH SIDE. DROP INLET WITH GRATE STRAW BALES STAKED WITH 2 STAKES PER BALE COMPACTED SOIL TO PREVENT PIPING 4' MINIMUM WOOD OR METAL STAKE I 4"-24" FILTER FABRIC BALES STAKED 12" TO 24" FROM INLET —STAKED STRAW BALE FILTERED WATER INLET RUNOFF WATER WITH SEDIMENT STRAW BALE INLET SEDIMENT FILTER TYPE B ALL CONSTRUC77ON ACTIVITIES TO BE IN ACCORDANCE WITH "CONSTRUCTION ACTIVITY REQUIREMENTS" AS DIRECTED IN PART IV, WHICH INCLUDE BUT ARE NOT LIMITED TO THE FOLLOWING: PIPE OUTLETS MUST BE PROVIDED WITH TEMPORARY OR PERMANENT ENERGY DISSIPATION WITHIN 24 HOURS OF CONNECTION TO A SURFACE WATER. SEDIMENT CONTROL PRAC77CES MUST BE ESTABLISHED ON ALL DOWN GRADIENT PERIMETERS BEFORE ANY UP GRADIENT LAND DISTURBING PRACTICES BEGIN. THESE PRACTICES SHALL REMAIN IN PLACE UNTIL FINAL STABILIZATION HAS BEEN ESTABLISHED IN ACCORDANCE WITH PART IV.G. ALL EXPOSED SOIL AREAS WITH A CON77NOUS POSITIVE SLOPE WITHIN 200 LINEAL FEET OF A SURFACE WATER, MUST HAVE TEMPORARY EROSION PROTECTION OR PERMANENT COVER FOR THE EXPOSED SOIL AREAS YEAR ROUND, ACCORDING TO THE FOLLOWING TABLE OF SLOPES AND 77ME FRAMES: TYPE OF SLOPE TIME (MAXIMUM 77ME AN AREA CAN REMAIN OPEN WHEN THE AREA STEEPER THAN 3:1 7 DAYS IS NOT AC TTVEL Y BEING WORKED) 10: 1 TO 3: 1 14 OA YS FLATTER THAN 10:1 21 DAYS THE TIMING OF THE INSTALLAT70N OF SEDIMENT CONTROL PRACTICES MAY BE ADJUSTED TO ACCOMODATE SHORT—TERM ACTIVITIES SUCH AS CLEARING OR GRUBBING, OR PASSAGE OF VEHICLES. ANY SHORT—TERM ACTIVITY MUST BE COMPLETED AS QUICKLY AS POSSIBLE AND THE SEDIMENT CONTROL PRACTICES MUST BE INSTALLED IMMEDIIATLEY AFTER THE ACTIVITY IS COMPLETED. HOWEVER, SEDIMENT CONTROL PRACTICES MUST BE INSTALLED BEFORE THE NEXT PRECIPITATION EVENT EVEN IF THE ACTIVITY IS NOT COMPLETE. ALL STORM DRAIN INLETS MUST BE PROTECTED BY APPROPRIATE BMPs DURING CONSTRUCTION UNTIL ALL SOURCES WITH POTENTIAL FOR DISCHARGING TO THE INLET HAVE BEEN STABILIZED. TEMPORARY SOIL STOCKPILES MUST HAVE SILT FENCE OR OTHER EFFECTIVE SEDIMENT CONTROLS, AND CANNOT BE PLACED IN SURFACE WATERS, INCLUDING STORM CONVEYANCES SUCH AS CURB AND GUTTER SYSTEMS, OR CONDUITS AND DITCHES. VEHICLE TRACKING OF SEDIMENT FROM THE CONSTRUCTION SITE MUST BE MINIMIZED BY BMPS SUCH AS STONE PADS, CONCRETE OR STEEL WASH RACKS, OR EQUIVALENT SYSTEMS. STREET SWEEPING MUST BE USED IF SUCH BMPs ARE NOT ADEQUATE TO PREVENT SEDIMENT FROM BEING TRACKED ONTO THE STREET THE CONTRACTOR IDENTIFIED IN THE SWPPP MUST ROU77NELY INSPECT THE CONSTRUCTION SITE ONCE EVERY SEVEN (7) DAYS DURING ACTIVE CONSTRUCTION AND WITHIN 24 HOURS AFTER A RAINFALL EVENT GREATER THAN 0.5 INCHES IN 24 HOURS. ALL INSPECTIONS AND MAINTENANCE CONDUCTED DURING CONSTRUCTION MUST BE RECORDED IN WRITING AND THESE RECORDS MUST BE RETAINED WITH THE SWPPP IN ACCORDANCE WITH PART III.D BY THE CONTRACTOR RECORDS OF EACH INSPEC77ON AND MAINTENANCE ACTIVITY SHALL INCLUDE.' A. DATE AND TIME OF INSPECTIONS; B. NAME OF PERSON(S) CONDUCTING INSPECTIONS; C. FINDINGS OF INSPECTIONS, INCLUDING RECOMMENDA77ONS FOR CORREC77VE ACTIONS; D. CORRECTIVE ACTIONS TAKEN (INCLUDING DATES, 77MES AND PARTY COMPLETING MAINTENANCE ACTIVITIES); E. DATE AND AMOUNT OF RAINFALL EVENTS GREATER THAN 1/2 INCH (0.5 INCHES) IN 24 HOURS; AND F. DOCUMENTATION OF CHANGES MADE TO THE SWPPP AS REQUIRED IN PART 111.A.4. PROJECT TYPE: RESIDENTIAL DEVELOPMENT TOTAL SITE AREA: +/— 6.1 ACRES TOTAL DISTURBED AREA: +/— 3.3 ACRES FINAL RUNOFF COEFFICIENT 0.68 BACK OF CURB GRAVEL FILLED SANDBAGS ARE STACKED TIGHTLY. CATCH BASIN CURB INLET, Ilk A PONDING HEIGHT PLAN VIEW CURB INLET SPILLWAY \m " (CATCH BASIN I\" QUALIFIED PERSONNEL PROPERLY GATHERED AND EVALUATED THE INFORMATION SUBMITTED. NOTE: SECTION A - A DIRECTLY RESPONSIBLE FOR GATHERING THE INFORMATION, THE INFORMATION SUBMITTED IS, TO THE 1. PLACE CURB TYPE SEDIMENT BARRIERS ON SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING THE POSSIBILITY OF FINE AND GENTLY SLOPING STREET SEGMENTS. WHERE SIGNED: --------------------------- WATER CAN POND AND ALLOW SEDIMENT TO EPIC DEVELOPMENT XVI, LLC SEPARATE FROM RUNOFF. CONTRACTOR'S CERTIFICAT70N 2. SANDBAGS, OF EITHER BURLAP OR WOVEN NAT70NAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPOES) PERMIT THAT AUTORIZES THE STORM GEOTEXTILE FABRIC, ARE FILLED WITH GRAVEL, AS PART OF THIS CERTIFICATION. LAYERED AND PACKED TIGHTLY. FOR 1 LEAVE ONE SANDBAG GAP IN THE TOP ROW SIGNED: ________________ TO PROVIDE A SPILLWAY FOR OVERFLOW. GENERAL CONTRACTOR 4. INSPECT BARRIERS AND REMOVE SEDIMENT CURB INLET AFTER EACH STORM EVENT. SEDIMENT AND SEDIMENT BARRIER GRAVEL MUST BE REMOVED FROM THE TRAVELED WAY IMMEDIATELY. PHONE NUMBER POLLUTION PREVENTION PLAN CERTIFICATION I CERTIFY UNDER PENALTY OF LAW THAT THIS DOCUMENT AND ALL ATTACHNENTS WERE PREPARED UNDER MY DIRECTION OR SUPERVISION IN ACCORDANCE WITH A SYSTEM DESIGNED TO ASSURE THAT QUALIFIED PERSONNEL PROPERLY GATHERED AND EVALUATED THE INFORMATION SUBMITTED. BASED ON MY INQUIRY OF THE PERSON OR PERSONS WHO MANAGE THE SYSTEM, OR THOSE PERSONS DIRECTLY RESPONSIBLE FOR GATHERING THE INFORMATION, THE INFORMATION SUBMITTED IS, TO THE BEST OF MY KNOWLEDGE AND BELIEF, TRUE, ACCURATE, AND COMPLETE. I AM AWARE THAT THERE ARE SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING THE POSSIBILITY OF FINE AND IMPRISONMENT FOR KNOWN VIOLATIONS. SIGNED: --------------------------- DEVELOPER CONTACT EPIC DEVELOPMENT XVI, LLC DATE.___ — CONTRACTOR'S CERTIFICAT70N I CERTIFY UNDER PENALTY OF LAW THAT I UNDERSTAND THE TERMS AND CONDITIONS OF THE GENERAL NAT70NAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPOES) PERMIT THAT AUTORIZES THE STORM WATER DISCHARGES ASSOCIATED WITH INDUSTRIAL ACTIVITY FROM THE CONSTRUCTION SITE IDENTIFIED AS PART OF THIS CERTIFICATION. SIGNATURE FOR RESPONSIBLE FOR SIGNED: ________________ CON 7RACTOR GENERAL CONTRACTOR CONTRACTOR SIGNATURE ADDRESS CITY, STATE ZIP CODE PHONE NUMBER DATE.' ------------ Ry,an ngineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. Date GALPIN CROSSING TWINHOMES Chanhassen, MN for EPIC DEVELOPMENT, LLC Project No Digital Drawing Nome galpin-twinhomes-prelim-3.dwg Drown By GLG Checked By PMR Dote 3/16/06 Revisions Issued For; Date; Schematic Design Design Development Preliminary Review Final Review Bidding Construction PRELIMINARY STORM WATER POLLUTION PREVENTION PLAN Page P -3A 2006 RYAN FNOINF.FRING, INC "'J 1LOT F 7 SAN MH Top' 954.9 7 STMH — RE=956.5 IE=953.1 30' BLDG. SIB FROM WEST PROPERTY LINE PROPOSED STO. SEWER 0 3 I I 2 i J rn I m A All ut 0 1 �Q 0 I F� OUTLET=949.30 LEGEND Io EXISTING PROPOSED Sanitary Sewer 4 — — SANITARY SEWER —4— WATER WATER — I HYD. W/VALVE HYD. W/VALVE —1--�� STORM SEWER STORM SEWER WETLAND BLUFF BLUFF CREEK — — —BCPC— — — PRIMARY CORRIDOR BOUNDARY 79 o =_ 50' SETBACK FROM O. H. W.L. 50' BLDG. SIB FROM REAR PROPERTY LINE o SSE— r' — — �SS'- �� B L 0 C K O N � �� \`� C,�,�F�\ G ' 24>RIM= RCPi0.5% 1 .2 X//4.2 INV=9562 960. " ` 1$ =958.0 I L 9 a0 �� 0.GcL ./ =953.7 QP J� / O 9� L IF 54.9 RIM=960.57 / 1 INV=950.¢ RIM=960.5 INV=95(0.55 ,,/IMPERVIOUS AREA CALCS / LL / / / CONNECT TO EXISTING 18"W'd TOTAL SITE = 265,595 SF WETLAND AREA = 27,577 SF 0.tt4hr'`t' IMPERVIOUS AREA = 51,081 SF (22,845 SF PVMT + 12 UNITS ® 2,353 SF EA.) TOTAL IMPERVIOUS AREA/(TOTAL SITE — WETLAND) = % HARD SURFACE 51,081/265,595 — 27,577 = 21% HARD SURFACE (REQUIRMENT <= 30%) SITE DATA GROSS SITE AREA RIGHT OF WAYS NET SITE AREA SITE DENSITY Sq. Ft. Acres 265,595± 6.101 0± 265,595± O± I `k 12 SINGLE—FAMILY DWELLING UNITS ON 6.1 AC. = 2.0 D.U./AC. — GROSS 12 SINGLE—FAMILY DWELLING UNITS ON 6.1 AC. = 2.0 D.U./AC. — NET 5,,N't PL� GENERAL UTILITY NOTES THE CONTRACTOR SHALL VERIFY ALL EXISTING CONDITIONS PRIOR TO CONSTRUCTION AND NOTIFY THE OWNER OF ANY DIFFERENCES. ALL WORK SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE CITY STANDARD SPECIFICATIONS, PROJECT SPECIFICATIONS OR AS MODIFIED HEREIN. UNLESS OTHERWISE NOTED, OR AS SPECIFIED IN THE ABOVE NOTE, ALL MATERIALS, CONS7RUC77ON TECHNIQUES AND TESTING SHALL CONFORM TO THE 1999 ED. OF THE "STANDARD UTILITIES SPECIFICA77ONS FOR WATER MAIN AND SERVICE LINE INSTALLATION AND SANITARY SEWER AND STORM SEWER INSTALLATION BY THE CITY ENGINEERING ASSOCIATION OF MINN." AND TO THE "STANDARD SPECIFICATION FOR HIGHWAY CONSTRUCTION" MINN. DEPT. OF TRANS., 2000 EDITION, INCLUDING THE CURRENT ADDENDUM. THE CONTRACTOR SHALL RECEIVE THE NECESSARY PERMITS FOR ALL WORK OUTSIDE OF THE PROPERTY LIMITS. SEE ARCH. PLAN FOR EXACT BLDG. LOCATION. SEE SITE PLAN FOR LAYOUT DIMENSIONS. SERVICE ENTRY LOCATIONS TO BE COORDINATED WITH THE ARCHITECT VERIFY EXISTING INVERT LOC. & ELEV. PRIOR TO BEGINNING CONSTRUCTION. THE WATER SERVICE SHALL BE INSTALLED WITH A MIN. OF 75 FT. OF COVER. ALL STORM SEWER PIPE SHALL BE CLASS 5 UNLESS OTHERWISE NOTED. THE CONTRACTOR SHALL CONTACT "GOPHER STATE ONE CALL' FOR FOR UTILITY LOCATIONS PRIOR TO UTILITY INSTALLATION. RIM=963.68' INV=959.83 / O I RIM— 668 IN 5 .80 1s� L 0' 50' 100' 150' Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanenginearirig.com I hereby certify that this pion, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the lows of the Stale of Minnesota. Signature - Registration No. Dote GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No Digital Drawing Nome galpin-twinhomee-prelim-3.dwg Drown By GLG Checked By PMR Dote 3/16/06 Revisions Issued For: Schematic Design Design Development Preliminary Review Final Review Bidding Construction Date: Preliminary Site and Utility Plan Page P-4 2006 RYAN ENGINEERING, INC F OUTLOT �t UFF CREEK A nz E e E 6 BE '6 `' APPROXIMATE TREE CANOPY 11 II \ ►--BE'° FROM AERIAL PHOTOGRAPHY r _ / �_ \@B 1{ BE 16 BE 1B �1 ` \ _ F i 55 � ND/ '= _SSS EASE �\ .� --\ eE s H ,z BE 82 ' yds,,. 1 B .e ec 6.2 BE -.BE B BE 16.5 \�. / o _ NO / -_`_ _�S\ C{N'{8 CK 12 ,1lr� BE B a B—M6ELEL E/� SS EASE—_ --------- O S E�`—�J \A 6 BE zu �EPsi OUTLOT SS�eEB\� ,� -- WETLAND BASIN N0. EASES _ \ �S'eE` BE '6 B L O C K O N - --fQsf `a _ _ >_ _�jBE 6 BA 16 BE 6 BA POND 4114 H.°9 / i 12 SS fAsf� I I --10 . —-------� 9 8 w 4 U 5 3 6 BITUMINOUS PATH I MAL 46A WEST 1 _ — I 100, �6 I � / I / .. w 12.5 .�• / / J QP OJy / / Z BASELINE TREE CANOPY COVERAGE CALC. PLANT LIST / rn 0 I I / SYMBOL OTY COMMON NAME - / TOTAL PLAT AREA = 265,595± SF WETLAND = 27,5771 SF 15 LARGE TREES TO INCLUDE THE FOLLOWING: Ln NET PLAT AREA = 238,018± SF PATMORE ASH GREENSPIRE LINDEN AMERICAN LINDEN EMERALOD LUSTTRE MAPLE ,j NORTHWOOD MAPLEPIN OAK I / BRUSH/TREE COVERAGE = 33,490± SF i m (EXCLUDING WETLANDS) IMPERIAL HONEYLOCUST A \ \ o I TREE CANOPY COVERAGE 33,490± SF (14% EXISTING COVERAGE) c 15 BLACK HILLS I COLORADO SPRUCE I OR SCOTCH PINE AUSTRIAN PINE REQUIRED TREE CANOPY COVERAGE CALC. 2-1/2— B&B 2 1/2 B&B 2-1/2 B&B 2 1/2 B&B _ 2 1/z B&B 2-1/2"' B&B 2-1/2"" B&B t > 6' High > 6 High > 6 High > 6' High .01 NOTES: BASED UPON PLANT AVAILABILITY, THE DEVELOPER RESERVES THE RIGHT / I TOTAL EXISTING CANOPY COVERAGE ON SITE = 14% TO SUBSTITUTE THE ABOVE TREES WITHIN THE SAME CATAGORY WITH PRIOR APPROVAL FROM THE CITY OF CHANHASSEN. THE TREES PLANTED WILL BE BASED REQUIRED CANOPY COVERAGE (LOW DENS. RESID.) = 25% UPON AVAILABILITY IN THE SPRING OF 2002 AT WHICH TIME A PLAN SHALL BE SUBMITTED. I o REPLACEMENT REQUIRED: TREES MUST BE FROM THE APPROVED LIST OF DESIRABLE SPECIES. I TARGET CANOPY — EXISTING CANOPY X UPLAND AREA DIVIDED BY 1089 (PREFERENCE GIVEN FOR TREES DESIGNATED AS NATIVE) (25%-14% = 25%) 11% X 238,018/I = 24 TREES PLUS EXISTING COVERAGE REMOVED (1%) X 1.2 (PENALTY) DIVIDED BY 1089 2,380 X 1.2/1089 = 3 TREES TOTAL TREE REPLACEMENT REQUIRED = 27 TREES REPLACED = 30 NO MORE THAN ONE—THIRD (1/3) OF THE TREES MAY BE FROM ANY ONE (1) TREE SPECIES, TREES SHALL BE USED THAT ARE ARE APPROPRIATE TO THE SOIL CONDITIONS FOUND ON THE SITE AND TREES SHALL AVERAGE AT LEAST TWO—AND—ONE—HALF—INCH CALIPER AND MAY BE A MINIMUM OF ONE—AND—ONE—HALF—INCH CALIPER. NOT LESS THAN TWENTY (20) PERCENT OF THE TREES SHALL BE CONIFERS. CONIFER TREES SHALL AVERAGE SEVEN (7) FEET AND SHALL BE A MINIMUM OF SIX (6) FEET IN HEIGHT. TREES SHALL BE FROM CERTIFIED NURSERY STOCK AS DEFINED AND CONTROLLED BY MINNESOTA STATUTE SECTIONS 18.44 THROUGH 18.61, THE PLAN PEST ACT, CONVENIENCE STORE IST FL. ELEV.=967.25 0' 50' 100' 150 Ryan Engineering LAND DEVELOPMENT SERVICES 434 Lake Street Excelsior, MN 55331 (952) 380-5000 www.ryanengineering.com I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly registered Engineer under the laws of the State of Minnesota. Signature Registration No. GALPIN CROSSING TWINHOMES Chanhassen, MN for MEPIC DEVELOPMENT, LLC Project No Digital Drawing Nome galpin-twilntux -prelim-3.dwg Dra wn Ry GLG Checked Ry PMR Dote 3/16/06 Revisions Issued For: Date. Schematic Design Design Development Preliminary Review Final Review Bidding Construction Preliminary Tree Inventory/ Landscape Plan P-5