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3c.-1. The Meadows at Longacres Final Plat Approval, 2nd & 3rd Additions3C /) CITY OF C I MEMORANDUM CHANHASSEN 690 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317 (612) 937 -1900 • FAX (612) 937 -5739 ' TO: Don Ashworth, City Manager FROM: Kate Aanenson, Planning Director ' Dave Hempel, Assistant City Engineer kim IV GtY )Iltt*avw 6Kbts�d.1/ 7> `'� � Do Srbmitted b CommFs" Ntt Submitted to Couna S-Aa -qS DATE: June 5, 1995 SUBJ: Meadows at Longacres, 2nd and 3rd Addition Final Plat At the October 26, 1992, meeting, the City Council approved of the rezoning ( #92 -5) from A2, ' Agricultural Estate to PUD, Planned Unit Development with the following conditions: 1. The applicant shall enter into a PUD Agreement which contains conditions of preliminary ' plat approval and wetland alteration permit approval. 2. All conditions of preliminary plat and wetland alteration permit. 3. Approval is also subject to the City Council ordering the Capital Improvement Project ' #92 -5 for trunk utility improvements. The City Council approved the preliminary plat ( #92 -4 PUD) to create 112 single family lots with the followip conditions: 1. The front yard setback for each lot may be a minimum of 20 feet from the street right- ' of -way. The intent being to minimize the impact on the natural features of constructing a new home on each home site. The lots that have already been identified on the preliminary plat are Lots 1, 14 -19, 37 -43 52 -57, 62, 65, 73, 74 and 78 -81, Block 2. In ' addition to these lots, staff recommends 'similar flexibility on the following lots: Lots 22 -24, 30, 31, 46, 47, 58 -61, 66 -72, Block 2. ' 2. Each lot shall maintain a side yard separation of 20 feet between each principal structure, including decks. The applicant shall be required to submit proof with each building permit application that the 20 foot separation is being maintained. Meadows at Longacres 2nd & 3rd Additions Final Plat Page 2 3. The preliminary plat shall be revised to reduce the local street right -of -way from 60' to 50' except Street A and maintain the cul -de -sac radius at 120 feet. Cul -de -sacs must be large enough to facilitate turning around of all emergency vehicles in the City of Chanhassen, taking into consideration cars that might be parked either on the inside or outside of the turning radius, and that no parking signs may be required. 4. The landscaping plan shall be revised to provide exterior landscaping along Highway 41 within the subject property. The exterior landscaping plan must be approved by city staff. 5. The applicant shall provide a copy of the covenants for review and approval by city staff. 6. The pool located on Lot 4, Block 2, shall be removed by the applicant prior to the filing of the final plat. 7. Outlot F and Lot 1, Block 6 shall be vacated by BMT and cleared no later than January 3, 1994. The applicant shall be required to receive demolition permits prior to removing any of the existing buildings. 8. The area substantially as shown on the plans as tree preservation areas will be protected by a preservation easement. The preservation easement will not allow the removal of any healthy vegetation. Precise delineation of the areas for tree preservation shall be agreed upon between the developer and staff. 9. The applicant shall provide "as- built" locations and dimensions of all corrected house pads or other documentation acceptable to the Building Official. 10. The applicant shall be required to pay full park and trail dedication fees as the time of building permit application at the per lot fee in force for residential property. The ' applicant shall provide a 20 foot wide trail easement for future trail construction along the western border of the subject property abutting the right -of -way of State Highway 41. 11. The applicant shall provide the necessary drainage and utility easements for construction of the lift station within the development. 12. The applicant shall provide sewer and water service to the parcels directly north and east ' of this development. The sewer and water service stubs shall be extended between Lots 5 and 6, Block 4 and between Outlot E and Lot 1, Block 4. In addition, the applicant and ' city engineering staff shall work together regarding extending the sanitary sewer on Street A to the easterly plat boundary. An individual sewer and water service shall be extended from Street D (cul -de -sac) to provide service to the exception parcel. At the time the ' exception parcel connects to the sewer and water service provided, the City will refund a portion of the connection fees to Lundgren Bros. ' Meadows at Longacres 2nd & 3rd Additions Final Plat ' Page 3 13. The existing home on Lot 4, Block 2 will be required to connect to the municipal sanitary t sewer line within one year after the sewer system is operational. The existing business on Lot 1, Block 1 shall be removed after January 3, 1994. 14. Except for the condition in Recommendation 3 above, All utility and street improvements shall be constructed in accordance with the latest edition of the City's Standard Specification and Detail Plates. Formal construction plans and specification approval by the City Council will be required in conjunction with the final platting. 15. Fire hydrant spacing shall be subject to review by the City's Fire Marshal. 16. The applicant shall apply for and obtain all the necessary permits of the regulatory agencies such as MPCA, Health Department, Watershed District, DNR and MnDOT. 17. The grading plan shall be amended to include the wetland mitigation areas and any known or proposed drain tile systems. Furthermore, the developer shall also report to the City Engineer the location of any drain tiles found during construction. 18. The applicant shall submit storm drainage and ponding calculations verifying the pipe sizing and pond volumes. Storm sewers shall be designed and constructed to handle 10 -year storm events. Detention ponds shall be constructed to NURP standards as well as maintain the surface water discharge rate from the subdivision at the predeveloped runoff rate for a 100 -year, 24 -hour storm event. Drainage plans shall be consistent with the City of Chanhassen's Best Management Practices Handbook. 19. The appropriate drainage and utility easements should be conveyed to provide access to maintain the ponding areas. An easement shall also be provided along wetlands and each side of drainageways from the storm ponds or wetlands. Easements for drainage and utility purposes shall not be less than 20 feet wide along the lot lines with the exception where utilities have been combined in the same easement area. In those areas the easement width shall be increased to 30 feet. 20. The storm sewer line proposed to discharge into Lot 33, Block 2 shall be extended to ' sediment basin No. 6 or some alternative design acceptable to the City Engineer shall be developed. ' 21. The applicant shall construct a 36 -foot wide gutter -to- gutter urban street section along Street A. The remaining streets may be constructed to City urban standards (31 -foot wide back -to- back). Meadows at Longacres 2nd & 3rd Additions , Final Plat Page 4 ' 22. Both the business and the existing home shall change their addresses in accordance with the City grid system once the streets have been constructed with the first lift of asphalt. ' Driveways shall also be relocated to take access off the interior street (Street A). 23. Type III erosion control is recommended around the higher - quality type wetlands. Type ' I erosion control shall be around the remaining or lower quality wetlands and sedimentation ponds. 24. The applicant shall resolve vacating the existing private road easement through Lots 3, 4, 5 and 6, Block 5. 25. Drainage and conservation easements shall be dedicated over all wetland areas within the subdivision, including outlots, except for Outlots G and H which shall be replatted in the future. ' 26. Prior to the City signing the final plat, the applicant shall enter into a development contract with the City and provide the necessary financial security to guarantee construction of the public improvements. 27. The applicant shall provide high water elevations for all wetlands. 28. The applicant shall provide at a minimum deceleration and acceleration lanes along Trunk Highway 41 and possibly a bypass lane on southbound Trunk Highway 41 if so required ' by MnDOT. These improvements should be incorporated into the street construction plans accordingly. 29. Plans for the turning radius of the proposed cul -de -sacs with center islands must be approved by the Chanhassen Fire Marshal. Note: "No Parking Fire Lane" signs may be required. This will depend on the size of the cul -de -sac, and the ability of fire apparatus to turn around with vehicles parked in the cul -de -sac. 30. All new street names must be approved by the Fire Department to avoid duplication or , confusion with existing street names. 31. A 10 foot clear space must be maintained around fire hydrants so as to avoid injury to ' fire fighters and to be easily recognizable, i.e. NSP transformers, street lighting, cable boxes, landscaping. ' 32. All conditions of rezoning and wetland alteration permit. 33. Cul -de -sacs G and I be eliminated and that I Street and G Street be connected. ' C Meadows at Longacres 2nd & 3rd Additions Final Plat Page 5 34. All streets that are proposed for future connection shall be provided with a turnaround which meets city standards with a barricade and signage stating that it is a temporary cul -de -sac and will be a future road connection. 35. Approval is also subject to the City Council ordering the Capital Improvement Project #92 -5 for trunk utility improvements. I The City Council also approved Wetland Alteration Permit #92- 9 with the following conditions: 1. The drain tile leading out of the newly created wetland to Wetland IA shall not be ' replaced. 2. The runoff currently entering Wetlands 7 and 7A shall be piped to the newly created wetland adjacent to Lot 28, Block 2. If possible, Wetland 7 shall be maintained in its current condition and location. 3. The 3 proposed wetlands adjacent to Wetlands IA, 1B and 1C shall have an undulating depth of at least 6 feet. 4. A revised wetland plan shall be submitted which shows each wetland edge, the proposed buffer strip and dimension, and the proposed setback and dimension (not including the buffer strip). This plan shall also include the wetlands being created as part of the mitigation plan. 5. The revised wetland plans shall show that the minimum average buffer strip required is being provided and shall provide details on how the vegetation requirement of the buffer strip is being met. The applicant shall be required to monument the buffer strips with a monument on each lot. The proposed monumentation shall be approved by staff 6. All conditions of preliminary plat, rezoning and wetland alteration permit. 7. Approval is also subject to the City Council ordering the Capital Improvement Project #92 -5 for trunk utility improvements. ' FINAL PLAT REQUEST Lundgren Brothers is requesting final plat approval for the 2nd and 3rd Additions of the ' Meadows at Longacres. The preliminary plat approval was given in October of 1992 and an extension of the PUD was given a year later. The preliminary plat has been revised to ' accommodate the acquisition of the Song property and the subsequent plat. The first phase of this plat included 38 lots and accessed from Highway 41. The 2nd Addition is the extension of Meadows at Longacres 2nd & 3rd Additions Final Plat Page 6 Bent Bow Trail and part of Moccasin Trail. This addition includes 26 lots. The 3rd Addition is the further extension of Bent Bow Trail and includes 7 lots. This subdivision was given numerous conditions of approval with the preliminary plat, based on the scale of the development, sensitive of the natural features and the use of the PUD zone. Staff has reviewed these conditions to determine which ones apply to this phase, which ones have been met and which ones still need to be carried forward with this phase of the final plat. The applicant is proposing to final plat a total of 33 lots with 2 outlots. Following is a list of the proposed outlots; Outlot A Future development phases Outlot B Future development phases One of the purposes of applying the PUD zone was to give flexibility to the development standards in order to provide for the preservation of natural features. Two cul -de -sacs in the 3rd Addition were combined to create a through street (Bent Bow Trail). As a part of the preliminary plat, front yard variances were given to reduce tree removal or increase setbacks from wetlands. There are two natural wetlands on the final plats. All wetland lots will have a buffer strip and will be posted with a buffer monumentation sign. MEADOWS AT LONGACRES 2ND ADDITION DESCRIPTION LOT SQ. FT. ACRES WETLAND SETBAC BUFFER BLOCK 1 1 22,227 0.5103 40' 10' -30' 2 20,633 0.4737 40' 10' -30' BLOCK 2 1 19,415 0.4457 40' 0 -20' 2 34,115 0.7832 3 47,322 1.0864 4 54,510 1.2514 5 55,495 1.2740 6 56,790 1.3037 7 21,554 0.4948 I I Meadows at Longacres 2nd & 3rd Additions Final Plat Page 7 8 18,533 0.4255 9 30,884 0.7090 10 36,009 0.8266 11 43,389 0.9961 12 69,377 1.5927 13 79,483 1.8247 14 182,661 4.1933 15 59,582 1.3678 16 40,692 0.9342 17 40,930 0.9396 18 17,442 0.4004 19 18,793 0.4314 20 19,482 0.4472 21 47,530 1.0911 22 42,568 0.9772 23 35,643 0.8182 24 17,592 0.4039 OUTLOT A 522,650 11.9984 OUTLOT B 178,284 4.0928 GROSS AREA 1,869,087 42.9084 N ROAD AREA 3,622 0.0832 S ROAD AREA 31,881 0.7319 TOTAL ROAD 35,503 0.8151 NET AREA 1,833,584 42.0933 Meadows at Longacres 2nd & 3rd Additions Final Plat Page 8 MEADOWS AT LONGACRES 3RD ADDITION DESCRIPTION LOT SQ. FT. ACRES WETLAND SETBAC BUFFER BLOCK 1 1 38,719 0.8888 40' 0 -20' 2 19,557 0.4490 3 21,347 0.4901 BLOCK 2 1 16,519 0.3792 40' 10' -30' 2 23,758 0.5454 40' 10' -30' 3 21,286 0.4887 40' 10' -30' 4 16,290 0.3740 40' 10' -30' GROSS AREA 178,284 4.0928 ROAD AREA 20,808 0.4776 NET AREA 157,476 3.6152 LANDSCAPING One of the conditions of the preliminary plat approval was a landscaping /streetscape plan. Gene Ernst of Ernst and Associates had prepared a landscaping plan. This plan proposed landscaped entry monuments on either side of the entrance off of Highway 41 as well as a planter island. Landscaping in these areas include existing deciduous with the addition of 52 Austrian Pines. Seventeen of the pines will be located between Highway 41 and the private drive to screen the lots adjacent to Highway 41 in Block 1. Streetscape along Longacres Drive include substantial stands of existing and deciduous trees with the additional planting of 8 sugar maples and 9 ash trees. The collector street, Longacres Drive, shall have landscaping consistent with city ordinances for streetscape. Tree conservation easements will be developed after site grading and the property corners are staked. The applicant shall work with the city forester to establish the area for easements. n L L II J J ' Meadows at Longacres 2nd & 3rd Additions Final Plat ' Page 9 PARK AND RECREATION ' This plat proposes a private neighborhood park, a trail along Highway 41 and adjacent to the wetland located on the southern edge of the plat. The park will include an informal play area ' and a play structure. The Park and Recreation Director has reached an agreement with Lundgren Brothers Construction that they will act as a general contractor for the city in regard to the construction of the trail (which has been specified as an asphalt trail to be constructed per standard city specifications). Lundgren Brothers will solicit a minimum of three bids for the construction of the trail for presentation to the Chanhassen City Council. The council may elect to accept a qualifying bid or reject all bids in favor of constructing the trail under a separate contract. In the event that Lundgren Brothers coordinates this work, the city, upon completion and acceptance of the trail, will pay Lundgren Brothers Construction the full contract amount. This payment would be made from the city's trail acquisition and development fund. Under this arrangement, the city would collect full trail fees in addition to park fees for both the Meadows at Longacres and the Song property plats. An additional trail segment needs to be added to the eastern side of Lot 12, Block 2, 2nd Addition. The complete conditions of approval regarding parks and trails for the Meadows at Longacres shall read: 1. Full park and trail fees shall be paid per city ordinance. 2. Lundgren Brothers Construction will act as the city's general contractor, soliciting bids for construction of an 8 ft. wide asphalt trail as depicted on the applicant's grading and drainage plan dated March 1994. The trail segment north of Longacres Drive at Highway 41 shall be the only exclusion. Final alignment of this trail shall be staked by the applicant and approved by the Park and Recreation Director and City Engineer. This trail shall be constructed per standard city specifications and must maintain a minimum separation of 10 ft. from the wetland delineation. A portion of this trail was completed as a part of the 1 st Addition. A minimum of three bids for the construction of this trail shall be presented to the city for consideration by the Chanhassen City Council. The council will elect to accept a qualifying bid or reject all bids in favor of rebidding the work under city contract. In the event that a bid is accepted, Lundgren Brothers Construction will coordinate this work as a part of the first phase of public improvements. Upon completion and acceptance of the trail construction, the city will pay Lundgren Brothers Construction the full amount for said construction. ' 3. All easements for trail purposes necessitated by this construction shall be granted to the city for recording. The minimum width of said easements shall be 20 feet. Meadows at Longacres 2nd & 3rd Additions Final Plat Page 10 UTILITIES Trunk sanitary sewer and watermain have been made available to the area via City project No. 92 -5. Assessments for the trunk sanitary sewer and water improvements (trunk and lateral) to serve the area of the 2nd and 3rd Addition plats, associated with City Project No. 92 -5, have already been levied. Lateral sanitary sewer and watermain to serve the 2nd and 3rd Additions will be extended by the developer from the Meadows at Longacres 1 st Addition. The applicant has supplied the City with detailed utility and street construction plans and specifications which are also being considered for approval at this time. Staff has reviewed the plans and specifications and finds them in general conformance with City standards and detail plates. Some minor revisions are still pending on the construction plans. However, staff feels that they can be worked out fairly easily with the developer's engineer. GRADING AND DRAINAGE The applicant has submitted a final grading, drainage and erosion control plan for approval. The revised plans have incorporated staffs recommendations. There are still some minor adjustments necessary on the grading and drainage plan such as emergency overflow swales, adjusting a house pad elevation, etc. The applicant is proposing to fill approximately 2.8 acres of isolated wetlands at nine locations in the overall development. The applicant has received the necessary permits from the Army Corps of Engineers back in October of 1993. Therefore, their mitigation measures are 1:1. However, the developer is actually creating or expanding four wetlands at four separate locations having a total acreage of approximately 3 acres. This phase includes two natural wetlands. One of the previous conditions of the preliminary plat was for the applicant to show the setbacks and wetland buffer edges on the grading plan. The applicant has shown the setbacks as drainage and utility easements on the final plat. This will be easier for the individual homeowners to obtain a copy of to determine their actual setback requirements. In addition, the City, under the new ordinance, will be requiring that wetland monumentation signage be installed on every other lot line at the buffer edge. The applicant will be charged a fee of $20 per sign accordingly. Conservation easements and tree preservation easements will be provided over the applicable areas. These easements will be recorded with the final plat. Staff would still like to have wetland buffer setbacks shown on the grading plan. There are two natural wetlands in the 2nd and 3rd Additions. These wetlands require a setback of 40' plus a 10 -30' (20' average buffer strip). The applicant has proposed a plan demonstrating compliance with these requirements. Conservation easements shall be placed around all wetlands. Wetland 4 is proposed to be filled. Wetland 7, 7A and 1C are being modified to add mitigation to increase their size. Storm water runoff is being conveyed to the NURP basins. The basins overflow into the wetland areas. The wetland water level is controlled by a storm sewer outlet Meadows at Longacres 2nd & 3rd Additions Final Plat ' Page 11 pipe. Staff is concerned that the predeveloped flood bounce in these wetlands be maintained. ' The applicant will have to submit to the City for review and approval the predeveloped runoff conditions to each one of the wetlands on this site and adjust the storm sewer outlets to maintain the predeveloped flood levels in each wetland. Staff still has not received detailed storm sewer ' calculations for the individual segments of storm sewer or overflow swales on the site. These calculations must be submitted to staff for review and approval prior to the City formally approving the construction plans. The detailed storm water calculations shall be designed to ' handle a 10 -year storm event based on the rational method. The drainage overflow swales provided around Lots 20, 21, 22, 23, Block 2, between Lots 4 and 5, Block 2 and through Lot 1, Block 1 shall be a 100 -year design. The project will be complying with the City's water quality standards and therefore no surface water management plan (SWMP) fees for water quality will be required. However, depending on the storm ponding calculations, if the development is not meeting the City SWMP for water quantity, then the applicant will be required to contribute into the City's SWMP program. The proposed rate per acre for single family is $1,980 /acre. Upon review of the construction plans and final plat it appears an additional 15 -foot wide drainage and utility easement should be provided on the final plat along the common lot line ' between Lots 4 and 5, Block 2 to cover the drainage overflow swale. ' STREETS Access to the 2nd and 3rd Addition is via the extension of Moccasin Trail and construction of Bent Bow Trail. These streets will be constructed to the City's standard local urban section (31 ' feet). Staff has been working with the applicant to develop an island design that works from a snow plowing and public safety standpoint. Upon review of the island design with the City's Fire Marshal, based on actual field tests a fire truck will not be able to maneuver in the cul -de -sac with the islands without jockeying back and forth. If a car is parked either on the outside curb line or adjacent to the island the truck would not be able to accomplish that movement. Therefore, the Public Safety Department has recommended that these cul -de -sac islands, as well ' as the cul -de -sac, be posted for no parking. Two landscaped islands are proposed, one at the southern end of Bent Bow Trail and at the eastern end of Moccasin Trail. The islands will be maintained by the homeowners association through the means of declaration of covenants. SUBDIVISION (Rezoning) 1. The applicant shall enter into a PUD Agreement which contains conditions of preliminary plat approval and wetland alteration permit approval. y Meadows at Longacres 2nd & 3rd Additions Final Plat Page 12 • This has been met. 2. All conditions of preliminary plat and wetland alteration permit. • This condition is still applicable. 3. Approval is also subject to the City Council ordering the Capital Improvement Project #92 -5 for trunk utility improvements. • Project ordered - construction in progress. (Preliminary plat) 1. The front yard setback for each lot may be a minimum of 20 feet from the street right -of- way. The intent being to minimize the impact on the natural features of constructing a new home on each home site. • This condition will be modified with the final plat. 2. Each lot shall maintain a side yard separation of 20 feet between each principal structure, including decks. The applicant shall be required to submit proof with each building permit application that the 20 foot separation is being maintained. • This condition is still applicable. 3. The preliminary plat shall be revised to reduce the local street right -of -way from 60' to 50' except Street A and maintain the cul -de -sac radius at 120 feet. Cul -de -sacs must be large enough to facilitate turning around of all emergency vehicles in the City of Chanhassen, taking into consideration cars that might be parked either on the inside or outside of the turning radius, and that no parking signs may be required. • This condition is being met except there was an error in the cul -de -sac radius, it should have been 60 feet. 4. The landscaping plan shall be revised to provide exterior landscaping along Highway 41 within the subject property. The exterior landscaping plan must be approved by city staff. • This condition has been met. 5. The applicant shall provide a copy of the covenants for review and approval by city staff. • This condition has been met. Meadows at Longacres 2nd & 3rd Additions Final Plat ' Page 13 6. The pool located on Lot 4, Block 2, shall be removed by the applicant prior to the filing ' of the final plat. • This condition is still applicable. 7. Outlot F and Lot 1, Block 6 shall be vacated by BMT and cleared no later than January 3, 1994. The applicant shall be required to receive demolition permits prior to removing any of the existing buildings. • This condition has been met. 8. The area substantially as shown on the plans as tree preservation areas will be protected by a preservation easement. The preservation easement will not allow the removal of any ' healthy vegetation. Precise delineation of the areas for tree preservation shall be agreed upon between the developer and staff. • Tree conservation easements shall be established for all lots that fall in the tree area noted on the preliminary plat. These easements shall be established after site grading has taken place. Only one building permit shall be issued prior to the tree preservation area established, approved by the city and recorded with Carver County. 1 9. The applicant shall provide "as- built" locations and dimensions of all corrected house pads or other documentation acceptable to the Building Official. • This condition must still be met. 10. The applicant shall be required to pay full park and trail dedication fees as the time of ' building permit application at the per lot fee in force for residential property. The applicant shall provide a 20 foot wide trail easement for future trail construction along the western border of the subject property abutting the right -of -way of Trunk Highway 41. • Refer to memo dated March 30, 1994. This condition has been modified. An additional trail segment shall be provided between Lots 12 and 13, Block 2, 2nd Addition. 11. The applicant shall provide the necessary drainage and utility easements for construction of the lift station within the development. Meadows at Longacres 2nd & 3rd Additions Final Plat Page 14 • The applicant is providing the necessary 30 -foot by 33 -foot drainage and utility easement around the lift station and a 20 -foot wide drainage and utility easement over the force main. 12. The applicant shall provide sewer and water service to the parcels directly north and east of this development. The sewer and water service stubs shall be extended between Lots 5 and 6, Block 4 and between Outlot E and Lot 1, Block 4. In addition, the applicant and city engineering staff shall work together regarding extending the sanitary sewer on Street A to the easterly plat boundary. An individual sewer and water service shall be extended from Street D (cul -de -sac) to provide service to the exception parcel. At the time the exception parcel connects to the sewer and water service provided, the City will refund a portion of the connection fees to Lundgren Bros. • Not applicable with this phase. 13. The existing home on Lot 4, Block 2 will be required to connect to the municipal sanitary sewer line within one year after the sewer system is operational. The existing business on Lot 1, Block 1 shall be removed after January 3, 1994. • The existing home on Lot 4, Block 2 shall connect to the municipal sanitary sewer line within 30 days after the sewer system is operational. The existing well may be used until it fails, then the parcel must connect to city water. The existing business on Outlot D shall be removed within 30 days after final plat approval. This condition has not been met. It is an enforceable condition of the fiist plat. 14. All utility and street improvements shall be constructed in accordance with the latest edition of the City's Standard Specification and Detail Plates. Formal construction plans and specification approval by the City Council will be required in conjunction with the final platting. • This condition is still applicable. 15. Fire hydrant spacing shall be subject to review by the City's Fire Marshal. • This condition is still applicable. 16. The applicant shall apply for and obtain all the necessary permits of the regulatory agencies such as MPCA, Health Department, Watershed District, DNR and MnDOT. • This condition is still applicable. Meadows at Longacres 2nd & 3rd Additions Final Plat Page 15 17. The grading plan shall be amended to include the wetland mitigation areas and any known ' or proposed drain the systems. Furthermore, the developer shall also report to the City Engineer the location of any drain tiles found during construction. ' This condition has been partially met. The developer shall report to the City Engineer the location of any drain tiles found during construction. 18. The applicant shall submit storm drainage and ponding calculations verifying the pipe sizing and pond volumes. Storm sewers shall be designed and constructed to handle 10 -year storm events. Detention ponds shall be constructed to NURP standards as well ' as maintain the surface water discharge rate from the subdivision at the predeveloped runoff rate for a 100 -year, 24 -hour storm event. Drainage plans shall be consistent with the City of Chanhassen's Best Management Practices Handbook. • This condition is still applicable. 19. The appropriate drainage and utility easements should be conveyed to provide access to maintain the ponding areas. An easement shall also be provided along wetlands and each side of drainageways from the storm ponds or wetlands. Easements for drainage and utility purposes shall not be less than 20 feet wide along the lot lines with the exception where utilities have been combined in the same easement area. In those areas the easement width shall be increased to 30 feet. This condition is still applicable. 20. The storm sewer line proposed to discharge into Lot 33, Block 2 shall be extended to sediment basin No. 6 or some alternative design acceptable to the City Engineer shall be developed. • Not applicable with this phase. 21. The applicant shall construct a 36 -foot wide gutter -to- gutter urban street section along Street A. The remaining streets may be constructed to City urban standards (31 -foot wide back -to- back). • Not applicable with this phase. ' 22. Both the business and the existing home shall change their addresses in accordance with the City grid system once the streets have been constructed with the first lift of asphalt. Driveways shall also be relocated to take access off the interior street (Street A). • This condition has been met. Meadows at Longacres 2nd & 3rd Additions Final Plat Page 16 23. Type III erosion control is recommended around the higher - quality type wetlands. Type I erosion control shall be around the remaining or lower quality wetlands and sedimentation ponds. • This condition is being met. 24. The applicant shall resolve vacating the existing private road easement through Lots 3, 4, 5 and 6, Block 5. • Not applicable with this phase. 25. Drainage and conservation easements shall be dedicated over all wetland areas within the subdivision, including outlots, except for Outlots G and H which shall be replatted in the future. • No longer applicable. 26. Prior to the City signing the final plat, the applicant shall enter into a development contract with the City and provide the necessary financial security to guarantee construction of the public improvements. • This condition must still be met. 27. The applicant shall provide high water elevations for all wetlands. • This condition has partially been met. The applicant must still provide the predeveloped high water elevations for a 100 year storm event and 24 hour duration. 28. The applicant shall provide at a minimum deceleration and acceleration lanes along Trunk Highway 41 and possibly a bypass lane on southbound Trunk Highway 41 if so required by MnDOT. These improvements should be incorporated into the street construction plans accordingly. • This condition has been met with the 1st Addition. 29. Plans for the turning radius of the proposed cul -de -sacs with center islands must be approved by the Chanhassen Fire Marshal. Note: "No Parking Fire Lane" signs may be required. This will depend on the size of the cul -de -sac, and the ability of fire apparatus to turn around with vehicles parked in the cul -de -sac. Meadows at Longacres 2nd & 3rd Additions Final Plat ' Page 17 • This condition has been partially met. Staff has determined that the cul -de -sac ' islands will require posting "No Parking" signs around the islands and outside curb line of the cul -de -sacs in order to keep a lane open for turning movements. The City Council will need to adopt a resolution for "No Parking" zone in these areas. 30. All new street names must be approved by the Fire Department to avoid duplication or confusion with existing street names. • This condition is being met. 31. A 10 foot clear space must be maintained around fire hydrants so as to avoid injury to fire fighters and to be easily recognizable, i.e. NSP transformers, street lighting, cable boxes, landscaping. • This condition is still applicable. 32. All conditions of rezoning and wetland alteration permit. • This condition is still applicable. 33. Cul -de -sacs G and I be eliminated and that I Street and G Street be connected. • This condition has met with the extension of Bent Bow Trail. 34. All streets that are proposed for future connection shall be provided with a turnaround which meets city standards with a barricade and signage stating that it is a temporary cul -de -sac and will be a future road connection. • This condition is being met. 35. Approval is also subject to the City Council ordering the Capital Improvement Project ' #92 -5 for trunk utility improvements. ' 0 This condition has been met. (Wetland Alteration Permit) 1. The drain tile leading out of the newly created wetland to Wetland IA shall not be replaced. • This condition is no longer applicable. Meadows at Longacres 2nd & 3rd Additions Final Plat Page 18 2. The runoff currently entering Wetlands 7 and 7A shall be piped to the newly created wetland adjacent to Lot 28, Block 2. If possible, Wetland 7 shall be maintained in its current condition and location. • A drainage swale has been created for homes adjacent to the Swale. 3. The 3 proposed wetlands adjacent to Wetlands IA, 113 and 1C shall have an undulating depth of at least 6 feet. • Wetland IC shall have an average depth of at least 6 feet. This condition is being met. 4. A revised wetland plan shall be submitted which shows each wetland edge, the proposed buffer strip and dimension, and the proposed setback and dimension (not including the buffer strip). This plan shall also include the wetlands being created as part of the mitigation plan. • Part of this condition is being met. The developer still needs to show buffer strip and dimension and the proposed setback and dimensions on the grading plan. The final plat denotes the buffer strip setbacks by dedication of drainage and utility easements. 5. The revised wetland plans shall show that the minimum average buffer strip required is being provided and shall provide details on how the vegetation requirement of the buffer strip is being met. The applicant shall be required to monument the buffer strips with a monument on each lot. The proposed monumentation shall be approved by staff. This condition is being met. The developer shall be required to stake the wetland buffer edge on alternate lot lines. The city will install wetland monumentation and bill the applicant for the signage. 6. All conditions of preliminary plat, rezoning and wetland alteration permit. • This condition must still be met. 7. Approval is also subject to the City Council ordering the Capital Improvement Project #92 -5 for trunk utility improvements. • This condition has been met. Meadows at Longacres 2nd & 3rd Additions Final Plat ' Page 19 RECOMMENDATION SUBDIVISION Staff recommends the City Council approve the final plat for Meadows at Longacres 2nd and 3rd Addition to final plat 33 single family lots and 2 outlots as shown on the plans received dated May 12, 1995, with the following conditions: 1. The front yard setback for each lot may be a minimum of 20 feet from the street right -of- way. 2. Each lot shall maintain a side yard separation of 20 feet between each principal structure, including decks. The applicant shall be required to submit proof with each building permit application that the 20 foot separation is being maintained. 3. The applicant shall provide a copy of the covenants for review and approval by city staff. 4. The applicant shall provide "as- built" locations and dimensions of all corrected house pads or other documentation acceptable to the Building Official. The house design designation on Lots l and 2, Block 2, 2nd Addition shall be changed from WO to RLO. 5. Park and Recreation conditions: a. Full p ark and trail fees shall be paid per city ordinance. b. Lundgren Brothers Construction will act as the city's general contractor, soliciting bids for construction of an 8 ft. wide asphalt trail as depicted on the applicant's grading and drainage plan dated March 1994. The trail segment north of Longacres Drive at Highway 41 shall be the only exclusion. Final alignment of this trail shall be staked by the applicant and approved by the Park and Recreation Director and City Engineer. This trail shall be constructed per standard city ' specifications and must maintain a minimum separation of 10 ft. from the wetland delineation. A portion of this trail was completed as a part of the 1st Addition. A minimum of three bids for the construction of this trail shall be presented to the ' city for consideration by the Chanhassen City Council. The council will elect to accept a qualifying bid or reject all bids in favor of rebidding the work under city ' contract. In the event that a bid is accepted, Lundgren Brothers Construction will coordinate this work as a part of the first phase of public improvements. Upon completion and acceptance of the trail construction, the city will pay Lundgren Brothers Construction the full amount for said construction. An additional trail segment needs to be added to the eastern side of Lot 12, Block 2, 2nd Addition. Meadows at Longacres 2nd & 3rd Additions Final Plat Page 20 C. All easements for trail purposes necessitated by this construction shall be granted to the city for recording. The minimum width of said easements shall be 20 feet. 5. All utility and street improvements shall be constructed in accordance with the latest edition of the City's Standard Specification and Detail Plates. Formal construction plans and specification approval by the City Council will be required in conjunction with the final platting. 6. The applicant shall apply for and obtain all the necessary permits of the regulatory agencies such as MPCA, Health Department, Watershed District, DNR and MnDOT. 7. The developer shall report to the City Engineer the location of any drain tiles found during construction. 8. The applicant shall submit storm drainage and ponding calculations verifying the pipe sizing, overflow swale and pond volumes. Storm sewers shall be designed and constructed to handle 10 -year storm events. Detention ponds shall be constructed to NURP standards as well as maintain the surface water discharge rate from the subdivision at the predeveloped runoff rate for a 100 -year, 24 -hour storm event. Overflow drainage swales shall also be designed for a 100 -year event of 24 -hour duration. Drainage plans shall be consistent with the City of Chanhassen's Best Management Practices Handbook. 9. Drainage and conservation easements shall be dedicated over all wetland areas within the subdivision, including outlots. Wetland mitigation measures as shown on grading plan dated 3/10/94, revised 4/19/94 shall be completed in conjunction with site grading and restoration. 10. Prior to the City signing the final plat, the applicant shall enter into a development contract with the City and provide the necessary financial security to guarantee construction of the public improvements. 11. The applicant shall provide the city with high water elevations for predeveloped runoff conditions for a 100 year storm event and 24 hour duration. 12. "No Parking" signs shall be posted around the islands and outside curb line of the cul -de- sacs in order to keep a lane open for turning movements. The City Council shall adopt , a resolution for "No Parking" zone in these areas. 13. A 10 foot clear space must be maintained around fire hydrants so as to avoid injury to ' fire fighters and to be easily recognizable, i.e. NSP transformers, street lighting, cable boxes, landscaping. Meadows at Longacres 2nd & 3rd Additions Final Plat Page 21 14. All conditions of the rezoning and wetland alteration permit shall be met. 15. The applicant may commence with site grading in accordance to the approved grading, drainage and erosion control plan once the PUD /development contract is executed and the city furnished with the necessary security escrow and applicable administration fee. Utility and street construction may not commence until the final plat is recorded. 16. Applicant shall provide a 15 -foot wide drainage and utility easement centered along the common property line between Lots 4 and 5, Block 2, 2nd Addition. 17. A native vegetative buffer strip averaging 20 feet in width shall be maintained around natural wetlands. 18. If the development is not meeting the City SWMP for water quantity, then the applicant will be required to contribute into the City's SWMP program. The proposed rate per acre for single family is $1,980 /acre excluding wetlands. 19. The developer shall provide a full -time on -site inspector. The inspector will need to be state certified. 20. The landscaped islands shall be maintained by the homeowners association through the means of declaration of covenants. 21. Tree conservation easements shall be established for all lots that fall in the tree area noted on the preliminary plat. These easements shall be established after site grading has taken place. Only one building permit shall be issued prior to the tree preservation area established, approved by the city and recorded with Carver County. 22. The applicant and staff will work to review the grading on Lots 1 -3, Block 1, 3rd Addition and Lots 2 and 3, Block 2, 3rd Addition. ATTACHMENTS Final plats for Meadows at Longacres 2nd and 3rd Addition.