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03-01-2022 Agenda and Packet A.WORK SESSION B.7:00 P.M. - CALL TO ORDER C.PUBLIC HEARINGS C.1 Degler Farm: Consider a Request to Amend Interim Use Permit #2021-13 to Extend the Termination Date of the Permit C.2 6609 Horseshoe Curve: Consider a Request for Setback and Maximum Size Variances for a Water-Oriented Accessory Structure (WOAS), a Variance to Allow a Six-Foot, Six-Inch High Opaque Fence (Gate) within the Required Front Yard Setback and a Variance Request for a Front Yard Parking Pad C.3 10500 and 10520 Great Plains Boulevard: Consider a Request for Conceptual PUD Approval for a Mixed Use Planned Unit Development (PUD) Rezoning on approximately 8.3 Acres with a Land Use Designation of Mixed D.GENERAL BUSINESS E.APPROVAL OF MINUTES E.1 Approve Planning Commission Meeting Minutes dated February 15, 2022 F.COMMISSION PRESENTATIONS G.ADMINISTRATIVE PRESENTATIONS G.1 City Council Action Update H.CORRESPONDENCE DISCUSSION I.ADJOURNMENT AGENDA CHANHASSEN PLANNING COMMISSION TUESDAY, MARCH 1, 2022 CITY COUNCIL CHAMBERS, 7700 MARKET BOULEVARD 1 J.OPEN DISCUSSION NOTE: Planning Commission meetings are scheduled to end by 10:30 p.m. as outlined in the official by-laws. We will make every attempt to complete the hearing for each item on the agenda. If, however, this does not appear to be possible, the Chairperson will notify those present and offer rescheduling options. Items thus pulled from consideration will be listed first on the agenda at the next Commission meeting. If a constituent or resident sends an email to staff or the Planning Commission, it must be made part of the public record based on State Statute. If a constituent or resident sends an email to the Mayor and City Council, it is up to each individual City Council member and Mayor if they want it to be made part of the public record or not. There is no State Statute that forces the Mayor or City Council to share that information with the public or be made part of the public record. Under State Statute, staff cannot remove comments or letters provided as part of the public input process. 2 Planning Commission Item March 1, 2022 Item Degler Farm: Consider a Request to Amend Interim Use Permit #2021-13 to Extend the Termination Date of the Permit File No.Planning Case No. 2021-13A Item No: C.1 Agenda Section PUBLIC HEARINGS Prepared By Bob Generous, Senior Planner Applicant Todd Degler 112131 Haering Lane Chaska, MN 55318 Present Zoning Agricultural Estate District (A2) Land Use Office/Industrial Acerage 63.65 acres Density Applicable Regulations Chapter 20, Article IV, Division 3, Standards for Agricultural and Residential Districts Chapter 20, Article IV, Div. 5. Interim Use Permits Chapter 20, Article X, Agricultural Estate District, A2 SUGGESTED ACTION "The Chanhassen Planning Commission recommends the City Council approve an amendment to Interim Use Permit #2021-13 regarding Agritourism at 9111 Audubon Road to extend the termination date to 50 years; and adopt the Findings of Fact and Recommendation." SUMMARY The applicant is requesting an amendment to the termination date for the interim use permit for the Agritourism use of the property. 3 BACKGROUND The applicant currently farms their property. The agritourism use began last September of 2021. They would like to extend the termination date for the Agritourism use as part of their farming operation. On August 9, 2021, the City Council approved: "The ordinance amending sections 1-2, 20-252, and 20-576 regarding Agritourism; and an Interim Use Permit (IUP) for an Agritourism Use at 9111 Audubon Road with a termination date of five (5) years." DISCUSSION The IUP was originally approved for a period of five (5) years from the date of City Council approval. This timeframe was intended to allow for the use to get established on the site and the City to evaluate the impact of the use on the community. During the last half year of operation, the City has not received any complaints. Even with the extension of the time frame for termination of the use, there are other mechanisms to end the use due to violation of the conditions of the permit, changes in City zoning regulations, or subdivision of the property. RECOMMENDATION Staff recommends that the Planning Commission recommend approval of the amendment for a fifty (50) year termination date to the Interim Use Permit to permit the Agritourism use on the property, and restates the other existing conditions; and adopt the Findings of Fact and Recommendation. ATTACHMENTS Staff Report Findings of Fact and Recommendation Development Review Application Interim Use Permit 2021-13 4 CITY OF CHANHASSEN PC DATE: March 1, 2022 CC DATE: March 21, 2022 REVIEW DEADLINE: March 29, 2022 CASE #: 2021-13A BY: RG, EH, DN, JR, JS, ET, MU SUMMARY OF REQUEST: Consider a request to amend the termination date of an Interim Use Permit in the Agricultural Estate District for an Agritourism Use. LOCATION:9111 Audubon Road APPLICANT:Applicant: Todd Degler 112131 Haering Lane Chaska, MN 55318 Property Owner: Gayle Degler 541 Pine View Court Chanhassen, MN 55317 PRESENT ZONING:Agricultural Estate District (A-2) 2040 LAND USE PLAN:Office Industrial ACREAGE:63.67 acres LEVEL OF CITY DISCRETION IN DECISION- MAKING: The City has limited discretion in approving or denying interim use permits, based on whether or not the proposal meets the use standards outlined in the Zoning Ordinance. If the City finds that all the applicable use standards are met, the permit must be approved. This is a quasi-judicial decision. Notice of this public hearing has been mailed to all property owners within 500 feet. PROPOSED MOTION: “The Chanhassen Planning Commission recommends City Council approve an amendment to Interim Use Permit #2021-13 regarding Agritourism at 9111 Audubon Road to extend the termination date to 50 years; And Adopts the Findings of Fact and Recommendation.” 5 Degler Farm IUP Amendment March 1, 2022 Page 2 PROPOSAL/SUMMARY The applicant is requesting an amendment to the termination date of the Interim Use Permit #2021- 13 to perpetuity. The Degler’s were concerned that the five-year termination date was a major problem for their operation. They felt that the City could deny an extension of the Degler Farm IUP without cause. An acceptable time would provide a longer term horizon for the recouping of Agritourism attraction costs. Additionally, it would allow them to determine when the Agirtourism ended at some interim time. APPLICABLE REGULATIONS Chapter 20, Article IV, Division 3, Standards for Agricultural and Residential Districts Chapter 20, Article IV, Div. 5. Interim Use Permits Chapter 20, Article X, Agricultural Estate District, A-2 BACKGROUND The applicant currently farms their property. They would like to extend the termination date for the Agritourism use as part of their farming operation. On August 9, 2021, City Council approved: The ordinance amending sections 1-2, 20-252, and 20-576 regarding Agritourism; and An Interim Use Permit (IUP) for Agritourism Use at 9111 Audubon Road with a termination date of five (5) years. SITE CONSTRAINTS Bluff Creek Corridor This property is located within the Bluff Creek Overlay District (BCOD). The City of Chanhassen established the Bluff Creek Overlay District (BCOD) 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 BCOD. Section 20-1255 of the Chanhassen City Code requires a conditional use permit for all development within the Bluff Creek Corridor. The Bluff Creek Corridor primary zone is located on the property. The Primary Corridor is designated open space. All structures must meet a 40-foot structural setback from the Primary Corridor boundary as required by Chanhassen City Code. In addition, no grading is allowed within the first 20 feet of the Primary Corridor. 6 Degler Farm IUP Amendment March 1, 2022 Page 3 The proposed development shall not impact the BCOD. No grading or vegetative alterations shall be permitted in the BCOD Primary Zone. Wetland Protection There is a wetland located on the property. The proposed development should not impact this wetland. Bluff Protection There are bluffs on the property. The proposed development should not impact the bluffs. Shoreland Management The property is located within a shoreland protection district. Floodplain Overlay This property is not within a floodplain. SURROUNDING ZONING AND USES The property to the west is in the city of Chaska. Two single-family homes are located to the west of the site. The Preserve at Bluff Creek is located to the east across Bluff Creek. Liberty at Bluff Creek is located to the south of the site. The Bluff Creek Primary Corridor wraps around the southern and eastern portions of the property. INTERIM USE PERMIT The applicant is requesting an amendment to the termination date for the interim use permit for the Agritourism use of the property. City Code: Sec 20-323 Termination An interim use permit shall terminate on the happening of any of the following events, whichever first occurs: 1. The date stated in the permit; 2. Upon violation of conditions under which the permit was issued; 3. Upon change in the City's zoning regulations which renders the use nonconforming; 4. Upon the subdivision of the property or the alteration of the lot lines of the property. State Statute: 394.303 INTERIM USES. Subdivision 1.Definition. An "interim use" is a temporary use of property until a particular date, until the occurrence of a particular event, or until zoning regulations no longer permit it. The date or event that will terminate the use can be identified with certainty. 7 Degler Farm IUP Amendment March 1, 2022 Page 4 Agritourism Operation: 8 Degler Farm IUP Amendment March 1, 2022 Page 5 ACCESS Access to the property is from Audubon Road (County Road 15). All conditions set forth by Carver County shall be addressed by the applicant, and all permits required shall be obtained prior to the commencement of and during operation of the Agritourism operations. ANALYSIS This area guided for office industrial uses with the Bluff Creek primary corridor guided for permanent open space. As such continuation of the use in perpetuity is inconsistent with the City’s Comprehensive Plan. Interim Use Permits, pursuant to City Code and State Statute, require a termination date. MISCELLANEOUS The IUP was originally approved for a period of five (5) years from the date of City Council approval. This timeframe was intended to allow for the use to get established on the site and the City to evaluate the impact of the use on the community. Even with the extension of the time frame for termination of the use, there are other mechanisms to end the use due to violation of the conditions of the permit, changes in City zoning regulations, or subdivision of the property. Any change in use of the current buildings on site, including the barn, will require it to come up to building and fire codes. This will invoke MN Statute 1306, which will require the buildings to be fitted with a Fire Suppression System and Fire Alarm System to monitor the Suppression System. They would also need to address egress, exit and emergency lighting, door hardware, fire-rated construction, and many other fire code-related items when it comes to change in use and access to the general public. This includes bringing people through or any public access to a building, or the construction or use of an observation tower. A tower will need to be built to current Building Code. Safety concerns with the items on site such as: pumpkin canons, pumpkin catapult, zip lines, swings, etc. Department of Labor and Industry is responsible for overseeing licensing for these items, which are regulated by Minnesota Statutes Chapter 184B, Amusement Rides. Corn/Straw Mazes – Any and all ignition sources will need to be a great distance away, including open flame (recreational fire pits). Corn/straw mazes are highly combustible and can trap people inside if a fire develops. Some research into history of corn maze fires states all vehicle parking and any sources of ignition, such as campfires and smoking, be at least 75 feet away at all times. Emergency Responder access – Will need to maintain emergency vehicle access to all areas on site and entrance and egress. Will require proper road surface for emergency and fire vehicles. Possible vehicle turnaround area depending on distances. A fire hydrant will be required to be placed on site. 9 Degler Farm IUP Amendment March 1, 2022 Page 6 Sec 20-27 Revocation, Modification, Etc., Of Permits, Authorizations, Etc. The city manager may issue an order to the owner or occupant of any premises to cease and desist the use of such premises immediately, when such premises are being used in a manner creating substantial hazard to the public health, safety or welfare, or in violation of any permit issued pursuant hereto. The city manager shall have the power to prevent unlawful erection, construction, reconstruction, alteration, repair, conversion, maintenance, or use of lands or structures within the city and to restrain, correct or abate such violations, or to prevent the occupancy of buildings, structures or lands, or prevent any illegal act, conduct, business, or use on or about said premises and may use the city attorney, police and other personnel in accomplishing these duties. Accessory agriculture buildings used for Agritourism Events must meet existing Building Code. Existing buildings will more than likely change in occupancy type for this type of business, which will require both the Fire Marshal and Building Official to confirm use, occupancy type, and applicable codes for public use. A full architectural analysis would be required into items such as: fire safety, egress, structural integrity, use and occupancy type, as well as many other applicable codes. Special permission may not be given to leave existing buildings “as is” for use in Agritourism. One of the conditions of approval of the Interim Use Permit is an annual report of the activities proposed for the upcoming year and an updated site plan with the parking location for the year shall be submitted to the City by May 1st each year. As a follow-up to this report, site inspections shall be performed prior to beginning the years activities. PERMITS Permits from the appropriate regulatory agencies must be obtained; including but not limited to the Minnesota Department of Labor and Industry, Minnesota Agricultural Department, Minnesota Pollution Control Agency, Riley Purgatory Bluff Creek Watershed District and Carver County. UTILITIES City utilities are available to the property. Water is located in Audubon Road. Sewer is located in Lyman Boulevard and at the northeast corner of the property. However, none have been extended into the interior of the site. Sanitary facilities shall be provided for use of the visitors to the site. Such use shall comply with Building Code or meet the requirements for chemical toilets spelled out in the Agritourism Standards. RECOMMENDATION Staff recommends that the Planning Commission recommend approval of the amendment for a fifty (50) year termination date to the Interim Use Permit to permit the Agritourism use on the property and restates the other existing conditions: 10 Degler Farm IUP Amendment March 1, 2022 Page 7 Interim Use Permit Building: 1. Accessible parking shall be located on an improved, centralized, permanent surface and shall be based on the maximum parking provided based on the rotational parking plan. Engineering: 1. All conditions set forth by Carver County shall be addressed by the applicant, and all permits required shall be obtained prior to the commencement of Agritainment operations. 2. Parking capacity shall be based on city standard parking lot layout. 3. Corn rows are acceptable screening for parking lots. Fire: 1. Corn mazes and straw maze shall be at least 75 feet away from all vehicular parking and all ignition sources, including open flame (recreational fire pits). 2. Will require a fire hydrant to be placed on site. Planning: 1. The Interim Use Permit shall terminate fifty (50)years from the date of City Council approval. 2. Buildings and use areas shall be as shown on approved Exhibit B. Additional buildings shall require an amendment to the Interim Use Permit. 3. Sanitary facilities shall be provided for site visitors. 4. The use of the subject property must be in general conformance with the attached Exhibit B. An annual report of the activities proposed for the upcoming year and an updated site plan with the parking location for the year shall be submitted to the City by May 1st each year. Water Resources: 1. The applicant shall incorporate Bluff Creek Overlay District (BCOD) Conservation Area signage within the BCOD portion of the site. These signposts would not impede the applicant’s ability to use the site for agriculture. Precise amount and location of signage must be approved by the City’s Water Resources Engineer. And Adopt the Findings of Fact and Recommendation. ATTACHMENTS 1. Findings of Fact and Recommendation 11 Degler Farm IUP Amendment March 1, 2022 Page 8 2. Development Review Application 3. Interim Use Permit #2021-13 g:\plan\2021 planning cases\21-13a degler farm center iup amendment\staff report degler farm iup amend.docx 12 1 CITY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES, MINNESOTA FINDINGS OF FACT AND RECOMMENDATION IN RE: Application of Todd Degler and Gayle Degler for an amendment to Interim Use Permit #2021-13 to operate an Agritourism business. On March 1, 2022, the Chanhassen Planning Commission met at its regularly scheduled meeting to consider the application of Todd Degler and Gayle Degler for an amendment of the termination time frame for the Interim Use Permit for the property located at 9111 Audubon Road (County Road 15). The Planning Commission conducted a public hearing on the proposed conditional use and was 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, A-2. 2.The property is guided by the Land Use Plan for Office Industrial use. 3.The legal description of the property is: See Exhibit A. 4.Section 20-232: a. The proposed use will not be detrimental to but will enhance the public health, safety, comfort, convenience or general welfare of the neighborhood or the city by providing a unique experience. b. The proposed use will be consistent with the objectives of the City's Comprehensive Plan and the zoning ordinance by meeting the standards of each. c. The proposed use 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. The use will be buffered from adjacent properties and will preserve the Bluff Creek Primary Zone. d. The proposed use will not be hazardous or disturbing to existing or planned neighboring uses. e. The proposed use 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. f. The proposed use 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 use 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. 13 2 h. The proposed use will have vehicular approaches to the property which do not create traffic congestion or interfere with traffic or surrounding public thoroughfares. i. The proposed use will not result in the destruction, loss or damage of solar access, natural, scenic or historic features of major significance. j. The proposed use will be aesthetically compatible with the area. k. The proposed use will not depreciate surrounding property values. l. The proposed use will meet standards prescribed for certain uses as provided in Chapter 20, Article IV of the City Code. 5.The Planning Commission shall recommend an Interim Use Permit and the City Council shall issue interim permits only if it finds, based on the proposed location, that: a. The use meets the standards of a conditional use permit set forth in Section 20-232 of the City Code. b. The use conforms to the zoning regulations. c. The use is allowed as an interim use in the zoning district. d. The date or event that will terminate the use can be identified with certainty. e. The use will not impose additional costs on the public if it is necessary for the public to take the property in the future. f. The user agrees to any conditions that the City Council deems appropriate for permission of the use. 6.The planning report #2021-13A dated March 1, 2022, prepared by Robert Generous, et al, is incorporated herein. RECOMMENDATION The Planning Commission recommends that the City Council approve the amendment to Interim Use Permit #2021-13 regarding Agritourism at 9111 Audubon Road to extend the termination date to 50 years subject to the conditions of the staff report. ADOPTED by the Chanhassen Planning Commission this 1st day of March, 2022. CHANHASSEN PLANNING COMMISSION BY: Mark von Oven, Chairman 14 3 EXHIBIT A To the following described Real Estate situated in Carver County, Minnesota. (A)The Northwest Quarter of the Southeast Quarter (NW¼ of SE¼ of Section 22, Township 116, Range 23, containing 40 acres of land, more or less. (B)Also, beginning at the post in South line of Northwest Quarter of Southeast Quarter (NW¼ of SE¼) Section 22, Township 116, Range 23, One (1) chain West from the Southeast (SE) Corner of said Northwest quarter of Southeast quarter (NW¼ of SE¼); thence South 38½ dgs. West 2.38 chains; thence South 73 dgs. West 4.35 chains; thence South 36½ dgs. West 1.90 chains; thence South 17½ dge. West 3.70 chains; thence North 82 dgs. West 1.50 chains to a point in North and South middle line of Southwest quarter of Southeast quarter (SW¼ of SE¼); thence North along said middle line 8.00 chains to a post in South line of Northwest Quarter of Southeast Quarter (NW¼ of SE¼); thence East 10.00 chains to place of beginning, situated in East Half (E½) of Southwest Quarter of Southeast Quarter (SW¼ of SE¼), Section 22, Township 116, Range 23, containing 3.60 acres. (C)Also, Commencing at a post on center line of Section 22, Township 116, Range 23, which post bears South 4.20 chains from center post of said Sec. 22; thence South 15.32 chains to Quarter Quarter post; thence North 44½ dgs. West 27.90 chains; thence East 15.32 chains; thence South 4.28 chains; thence East 4.28 chains to place of beginning, situated in Lot 2, Sec. 22, Township 116, Range 23 and containing 17.37 acres, more or less. (D)Also, Beginning at the Quarter Section post on South line of Section 22, Township 116, Range 23, running thence North along center line of said Section 20.00 chains to middle line of Southeast quarter (SE¼) of said Section; thence East along said middle line 10.00 chains; thence South parallel with first mentioned line 15.75 chains to a point in the center of a creek; thence Southerly along center of said creek to South line of said Section; thence West 7.00 chains to place of beginning, containing 19 acres of land more or less, situated in West half of Southwest quarter of Southeast quarter (W½ of SW¼ of SE¼) of Section 22, Township 116, Range 23. 15 DEVELOPCOMMUNITY on-7700MENTlevardDEPARTMENT CITY OF CHANHASSENPlanningDivision — 7700 Markel Boulevard Mailing Address — P.O. Box 147, Chanhassen, MN 55317 Phone: (952) 227-1100 / Fax: (952) 227-1110 APPLICATION FOR DEVELOPMENT REVIEW Submittal Date: PC Date: CC Data: 60-Day Review Date: Refer fo the appropriate Application Checklist forrequired suhmiffal information that must accompany this application) Comprehensive Plan Amendment ......................... $600 Minor MUSA line for falling on -site sewers..... $100 Aw" LVS Conditional Use Permit (CUP) ISingle-Family Residence ... ............................. 325 All Others......................................................... 425 Interim Use Permit (IUP) In conjunction with Single -Family Residence.. 325 All Others......................................................... 425 Rezoning (REZ) Planned Unit Development(PUD)..................$750 Minor Amendment to existing PUD .................$100 All Others ............ ........................... .................. 500 Sign Plan Review............ ....................................... $150 Site Plan Review (SPR) Administrative ............................ ...................... $100 Commercial/Industrial Districts*......................$500 Plus $10 per 1,000 square feet of building area: thousand square feet) Include number of axis fina employees- Include number of new employees: Residential Districts ..... ........................ ............ $500 Plus $5 per dwelling unit (_ units) Subdivision (SUB) El Create 3 lots or less ....................... ................. $300 Create over 3 lots.......................$600 i $15 per lot lots) Metes & Bounds (2 lots) .... ..................... ......... $300 Consolidate Lots..............................................$150 Lot Line Adjustment. ............... ........ ........ ...... $150 Final Plat .................................. ........ ......$700 Includes $450 escrow for attorney costs)' Atldibonal escrow may be required for other applications through the development contract Vacation of Easements/Right-of-way (VAC) ........ 300 Additional recording fees may apply) Variance (VAR) .................... ............ .................... 200 Wetland Alteration Permit(WAP) Single -Family Residence...............................$150 All Others .......................................................$275 Zoning Appeal ................................... ................... 100 Zoning Ordinance Amendment (ZOA)................. 500 NOTE: When multiple applications are processed concurrently, the appropriate fee shall be charged for each application. ff—Notification Sign (City to install and rem ... ove)............................................................................................ I ..................... . $200 L[I /Property OwnersList within 500' (city to generate after p.ppll.tum meemlg).................................................. $3 per address addresses) Escrow for Recording Documents (check all that apply) ......................................... ...... El. $ 90 per document Conditional Use Permit Interim Use Permit [3 Site Plan A AgreementVacation Variance Wetland Alteration Permit Metes & Bounds Subdivision (3 docs.) Easements (_ easements) Deeds i( TOTAL FEE: el Drof Proposal: Property Address or Location: _ Parcel #: Z5_0 Z7_0 $C4i Total Acreage: &!P. us Present Zoning: Select One Present Land Use Designation: S tyto rS Legal Description: ,/ Wetlands Present? IeJT res Q'Qo { A- Z_ Requested Zoning: Select One WoLCqeLwr Requested Land Use Designation: Select One Existing Use of Property: (.x (i O—C'C`^ Check box if separate narrative is attached. 16 Section2l Property Owner and Applicant Information APPLICANT OTHER THAN PROPERTY OWNER: In signing this application, I, as applicant, represent to have obtained authorization from the property owner to file this application. I agree to be bound by conditions of approval, subject only to the right to object at the hearings on the application or during the appeal period. If this application has not been signed by the property owner, I have attached separate documentation of full legal capacity to file the application. 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 will keep myself informed of the deadlines for submission of material and the progress of this application. I further understand that additional fees maybe charged for consulting fees, feasibility studies, etc- with an estimate prior to any authorization to proceed with the study, I certify that the information and exhibits submitted are true and correct. Name: Contact: Address: "e Phone: G'7 SZ-' Z Z City/State0p: 'VNl '3 g Cell: Email:4'MA^ - Fax: Signature: Date: I1Z94, - PROPERTY OWNER: In signing t is application, I, as property owner, have full legal capacity to, and hereby do, authorize the filing of this application. I understand that conditions of approval are binding and agree to be bound by those conditions, subject only to the right to object at the hearings or during the appeal periods. 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. Icertifi/ that the information and exhibits submitted are true and correct. Name: C--77W L Contact: Address: ' I 6A ` Phone: cjSZ - q03 - City/ State/Zip:_ Lit4 - G53l1--7 Cell: Email: x-r I Q— Fax: Signature- Date: ,[/TB/ZZ This application must be completed in full and must be accompanied by all information and plans required by applicable City Ordinance provisions. Before filing this application, refer to the appropriate Application Checklist and confer with the Planning Department to determine the specific ordinance and applicable procedural requirements and fees. 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. PROJECT ENGINEER (it applicable) Name: Contact: Address: Phone: City/ State/Zip: Cell: Email: Fax: Section 4: Notification Information Wh should receive copies of staff reports? 'Other Contact Information: roperty Owner Via: frnail Mailed Paper Copy Name: Applicant Via: [v7Email Mailed Paper Copy Address: Engineer Via: Email Mailed Paper Copy City/State/zip: Other" Via: Email Mailed Paper Copy Email: INSTRUCTIONS TO APPLICANT: Complete all necessary fern fields, than select SAVE FORM to save a copy to your device. PRINT FORM and deliver to city along with required documents and payment. SUBMIT FORM to send a digital copy to the city for processing. SAVE FORM PRINT FORK BUBMR FORM 17 CITY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES INTERIM USE PERMIT#2021-13 1. Permit. Subject to the terms and conditions set forth herein,the City of Chanhassen hereby grants an interim use for an Agritainment use for 9111 Audubon Road. 2. Property. The permit is for the following described property("subject property") in the City of Chanhassen,Carver County,Minnesota: See Exhibit A) 3.Conditions. The permit is issued subject to the following conditions: Building: a. Accessible parking shall be located on an improved, centralized, permanent surface and shall be based on the maximum parking provided based on the rotational parking plan shown in Exhibit B. Engineering: a. All conditions set forth by Carver County shall be addressed by the applicant, and all permits required shall be obtained prior to the commencement of Agritainment operations. b. Parking capacity shall be based on city standard parking lot layout in Section 20-1118 of the Chanhassen City Code. c. Corn rows are an acceptable screening for parking lots. 1 18 Fire: a. Corn mazes and Straw Mazes shall be set back at least 75 feet from all vehicular parkin/ and all ignition sources, including open flame (recreational fire pits). b. Applicant must place a fire hydrant on site. Planning: a. The Interim Use Permit(IUP)shall terminate five (5) years from the date of City Council approval. b. Buildings and use areas shall be as shown on the approved Exhibit B. Additional buildings shall require an amendment to the Interim Use Permit. c. Sanitary facilities shall be provided for site visitors. d. The use of the subject property must be in general conformance with the attached Exhibit B. An annual report of the activities proposed for the upcoming year and an updated site plan with the parking location for the year shall be submitted to the City by May 1st each year. Water Resources: a. The applicant shall incorporate Bluff Creek Overlay District(BCOD) Conservation Area signage within the BCOD portion of the site. Precise amount and location of signage must be approved by the City's Water Resources Coordinator. 4. Termination of Permit. This Interim Use Permit shall terminate upon the occurrence of any of the following events,whichever first occurs: a. The date stated in the permit; b. Upon violation of conditions under which the permit was issued; c. Upon change in the city's zoning regulations which renders the use nonconforming; d. Upon the subdivision of the property or the alteration of the lot lines of the property. 5.Lapse. If within one year of the issuance of this permit the authorized construction has not been substantially completed or the use commenced,this permit shall lapse,unless an extension is granted in accordance with the Chanhassen Zoning Ordinance. 6.Criminal Penalty. Violation of the terms of this Interim Use Permit is a criminal misdemeanor. 2 19 Dated: August 9, 2021 CITY OF CHANHASSEN By: r(4,f0A>Elise Ryan,Mayor By: WA/Oki1A-44-0tAlLtAr Laurie Hokkanen, City Manager STATE OF MINNESOTA ) ss COUNTY OF CARVER ) The foregoing instrument was acknowledged before me this 1 gay of AUCOLC47-- 2021,by Elise Ryan, Mayor,and Laurie Hokkanen,City Manager, of the City of Chanhasle ,a Minnesota municipal corporation, on behalf of the corporation and pursuant to authority granted by its City Council. Notary P lic DRAFTED BY: City of Chanhassen 7700 Market Boulevard MEUWISSENKtMT. P.O. Box 147 Public Minnesota lL Notpiree Jar'31. 5 Chanhassen,MN 55317 r rmf c missioo 952)227-1100 20 EXHIBIT A To the following described Real Estate situated in Carver County,Minnesota. A) The Northwest Quarter of the Southeast Quarter(NW1/4 of SE'/4 of Section 22,Township 116,Range 23,containing 40 acres of land,more or less. B) Also,beginning at the post in South line of Northwest Quarter of Southeast Quarter(NW'/4 of SE'/4) Section 22,Township 116,Range 23,One(1)chain West from the Southeast(SE)Corner of said Northwest quarter of Southeast quarter(NW'/4 of SEA);thence South 381/4 dgs. West 2.38 chains;thence South 73 dgs. West 4.35 chains;thence South 361/4 dgs. West 1.90 chains;thence South 17'/2 dge. West 3.70 chains;thence North 82 dgs. West 1.50 chains to a point in North and South middle line of Southwest quarter of Southeast quarter(SW'/4 of SE'/4);thence North along said middle line 8.00 chains to a post in South line of Northwest Quarter of Southeast Quarter NW'/4 of SE'/4);thence East 10.00 chains to place of beginning, situated in East Half(E1/4)of Southwest Quarter of Southeast Quarter(SW'/4 of SE'/4), Section 22, Township 116,Range 23, containing 3.60 acres. C) Also,Commencing at a post on center line of Section 22,Township 116,Range 23,which post bears South 4.20 chains from center post of said Sec. 22;thence South 15.32 chains to Quarter Quarter post;thence North 441/4 dgs. West 27.90 chains;thence East 15.32 chains;thence South 4.28 chains;thence East 4.28 chains to place of beginning,situated in Lot 2, Sec. 22, Township 116, Range 23 and containing 17.37 acres,more or less. D) Also,Beginning at the Quarter Section post on South line of Section 22, Township 116, Range 23, running thence North along center line of said Section 20.00 chains to middle line of Southeast quarter(SE'/4)of said Section;thence East along said middle line 10.00 chains;thence South parallel with first mentioned line 15.75 chains to a point in the center of a creek;thence Southerly along center of said creek to South line of said Section;thence West 7.00 chains to place of beginning, containing 19 acres of land more or less, situated in West half of Southwest quarter of Southeast quarter(W'/z of SW'/4 of SE'/4) of Section 22,Township 116,Range 23. 4 21 EXHIBIT B Degler Farm Narrative& Site Plan Brief Background: Degler Farm has an extensive background in farming and educational teaching. Family founded by multi- generational elementary and high school educators; Degler Farm has a passion for educating youth. Our mission is to educate local youth on the operation,economics, and future of agriculture. In this spirit,Degler Farm would like to be more community facing through the growing area of Agritourism. We want to bring our passion for education and combine it with farm friendly activities. This"outside the classroom"learning on the farm is not only instructive,but fun. We see it as another yet another way to reach our neighbors and local community. Activity: Description: Education component: Hayrides Give participants a ride on a Local farm history in Chanhassen tractor pulled wagon. Tree identification Corn/Bean Maze -Participants walk through a How corn is grown corn/bean cut maze Corn Pit Area of shelled Corn for play What shelled corn looks like— differences between sweet corn and field corn. Straw Bale Maze -Smaller kid size maze What is straw? Pumpkin Picking -Pick your own Crop rotation and plant care Antique Tractor Outdoor tractor displays Evolution of the farm tractor. Displays Snowshoeing Snowshoeing Outdoor fitness&nature etiquette, animal tracking Other activities: Hayrides,corn/bean maze,corn pit, straw bale maze,tractor displays, snowshoeing,harvest-your- own produce,hill slides,pumpkin throwers/cannons, lookout towers,zip lines,play structures,saw mill demonstrations,hay stacks,kiddie trains, animal rides,sleigh rides, snowshoeing,maple syrup harvesting,cross country skiing,animal walks,animal rides, farm implement games, sledding hills, axe throwing,outdoor music,archery stands,agricultural demonstrations are exhibited regardless of compensation. 5 22 A Hayride: Hayride path is a loop that starts at farm and 4, trirLyman Blvd Lyman.Blvd travels through the back pasture. It will start/end at the farmyard.Hayride route will e change based on crop rotation. Cross country skiing,snowshoeing,hiking,animal walks,animal rides,sleigh rides,and biking will utilize same trail. Com/bean maze Location: Location of 2020/2021 corn maze is shown pictorially. Due to rotational nature of crops, r3 corn maze location will change. et Farm ask,.O ip•' Vendor Locations: i'. +,„,,kgc Shown in the general area marked by in a z v ,. Yellow dot. 0 Chemical Toilet Locations: Marked by orange dot,this location is not able to be seen from outside the property. l 4-if J•I V oCO Sledding HilUHill Slides: Marked in Red outline/green shaded area F Zip line: Marked in Purple line Corn pit&straw bale maze General location is shown by green dot. 0-- , Other activities:(will rotate around farmyard based on field planting&parking—(8 blue dot c::" areas) e. Tractor displays,harvest-your-own produce, i {,t - " x pumpkin throwers/cannons,lookout towers, play structures,sawmill demonstrations,hay stacks,kiddie trains,maple syrup harvesting, farm implement games,axe throwing,outdoor music,archery stands,agricultural demonstrations Y 1 ,,s fJ ` Parking Size/Caoacdv/Locations: A one acre parking lot with only lanes and spaces could fit approximately 150 cars.Assuming we are going with box(90 degree)parking,the dimensions of the space required are(9 ft wide)(18 ft long+26ft travel lane.) Shown on map are approximate parking car capacities. Parking Location: The 3 lots are options shown as rotational placements of parking. Entrances/exits are from Audubon Road and marked with dotted lines. In 2020 the most cars we had on the premise was 25 cars parked at 1 time. (40 total on a Saturday)The parking plan is meant to show we have ample parking spaces. Parking Surface will be a permittable fast growing alfalfa/grass mix. In the unlikely event that erosion or dust present a problem,the affected area will be roped off and fitted with erosion barriers.(hay bales)Lots that do not survive winter freeze will be replanted. Accessible parking locations will be placed each year as needed in magenta and follow guidelines of size and quantity. 6 23 Planning Commission Item March 1, 2022 Item 6609 Horseshoe Curve: Consider a Request for Setback and Maximum Size Variances for a Water-Oriented Accessory Structure (WOAS), a Variance to Allow a Six-Foot, Six-Inch High Opaque Fence (Gate) within the Required Front Yard Setback and a Variance Request for a Front Yard Parking Pad File No.Planning Case No. 2021-07B Item No: C.2 Agenda Section PUBLIC HEARINGS Prepared By MacKenzie Young-Walters, Associate Planner Applicant Elise Bruner & Brian Bruner 6609 Horseshoe Curve Chanhassen, MN 55317 Present Zoning Single Family Residential District (RSF) Land Use Residential Low Density Acerage .64 Density NA Applicable Regulations Chapter 1, Section 1-2, Rules of Construction and Definitions Chapter 20, Article II, Division 3. Variances Chapter 20, Article II, Division 4. Nonconforming Uses Chapter 20, Article VII. Shoreland Management District Chapter 20, Article XII, “RSF” Single-Family Residential District, Section 20- 615, Lot Requirements and Setbacks Chapter 20, Article XXIII, Division 5. Fences and Walls 24 SUGGESTED ACTION "City Staff recommends the Planning Commission, acting as the Board of Appeals and Adjustments, deny the requested opaque gate variance, deny the requested variance for a front yard parking pad, and approve a 58-square foot water oriented accessory structure size variance, a 5-foot side yard setback variance, and 2-foot shoreland setback variance for the construction of a water oriented accessory structure, subject to the Conditions of Approval, and adopt the attached Findings of Facts and Decision." SUMMARY The applicant is requesting a variance to construct a 6.5-foot high opaque gate within the required front yard setback, a variance for a front yard parking pad, and variances from the water oriented accessory structure (WOAS) maximum size limit, shoreland setback, and side yard setback to add a storage shed to the property’s existing WOAS. BACKGROUND General History In April of 1999, the City approved a two-lot subdivision with variances allowing for a 20% driveway grade and 81-foot shoreland setback.* *Note: At the time this subdivision was proposed, the ordinance required structures maintain the shoreland setbacks of the adjacent properties. This requirement was subsequently repealed and properties are subjected to the current 75-foot shoreland setback. In July of 1999, the City issued a building permit for the construction of a single-family home. In March of 2000, the City issued a building permit to add a deck. In November of 2018, the City issued a building permit for a significant remodel that included the demolition of the existing deck and patio. In June of 2020, the City issued a building permit to add a rooftop deck. In April of 2021, the applicant applied for a building permit in compliance with Variance 2021-07. Several permits for interior work and maintenance are also on file with the City. Variance 2021-07 History On May 21, 2020, the designer contacted staff with a proposal for the site that included a large concrete patio off the rear of the home, a concrete patio and large WOAS near the lake, and a front yard parking pad. On May 22, 2020, staff expressed concerns about the likely presence of a bluff on the property and 25 provided the designer with the sections of the City Code that they believed would apply to the proposal. Staff indicated that the proposal would require multiple variances and that a survey would be required to determine the exact nature and extent of the variances. On June 16, 2020, the designer sent a revised plan and requested a meeting with staff to discuss potential variances. On June 18, 2020, staff met with the applicant’s designer to discuss the proposed project. During the meeting, staff expressed concern regarding the proposed size and placement of the WOAS, proposed front yard parking pad, and presence of impervious surface within the bluff impact zone. On July 16, 2020, staff and the designer met to discuss the proposed project. During the meeting, staff expressed concern regarding the proposed size and placement of the WOAS, but was supportive of the plans to stabilize the bluff and proposed pervious patio above the bluff. On November 20, 2020, staff and the designer met to discuss the proposed project. The proposed WOAS had been scaled back to address staff’s concerns. On November 30, 2020, staff and the designer met to discuss the proposed project. No significant concerns were raised. On December 18, 2020, the applicant submitted the variance request. On January 19, 2021, the Planning Commission approved a 19-foot bluff impact zone and 29-foot bluff setback variance for the construction of a deck, a bluff impact zone and bluff setback variance for the construction of retraining walls within the bluff, and a 25-foot bluff, 5-foot side yard, and 3-foot shoreland setback for a WOAS. On June 4, 2021, the applicant submitted a variance request to increase the width of the deck from 12 to 14 feet, replace the western concrete window well and retaining wall with a living wall system, and add a 9-foot by 9-foot equipment pad and associated retaining wall to the east of the house. On June 17, 2021, staff contacted the applicant expressing concern over the proposed equipment pad and associated retaining wall’s encroachment into the bluff, and requested that the applicant investigate the possibility of relocating or modifying the proposed equipment pad. On June 22, 2021, the applicant agreed to remove the 9-foot by 9-foot pad and associated retaining wall, revising the design to work within the existing boulder wall and AC pad’s encroachment into the bluff setback. On July 6, 2021, the Planning Commission approved a 20-foot bluff impact zone and 30-foot bluff setback variance for the construction of a deck and a bluff impact zone and bluff setback variance for the construction of retaining walls within the bluff. On August 20, 2021, staff received a complaint that work on the site was exceeding what was permitted by the variance. Staff conducted an inspection and found that no permit had been issued and that work was being conducted by the lakeshore. A stop work order was issued. Subsequently, the applicant’s contractor received a zoning permit for the deck and stairs and this portion of the stop work order was lifted. He was informed that a grading permit would be needed to resume work on the slope. 26 From August 20, 2021 to September 16, 2021, staff and the applicant and their representatives had multiple discussions centering on the scope of work being conducted on the property, what had been approved as part of the variance, what ordinances and restrictions applied, and what permits were needed. On September 17, 2021, the applicant submitted a variance request asking the City to either revise their determination that a bluff was present on the property or grant a series of variances from the provisions of the bluff ordinance. The applicant also requested variances to add a shed to their existing WOAS and install a 6.5-foot opaque privacy fence within the front yard setback. On September 21, 2021, staff, after consulting with the City attorney, acknowledged that the property was not subject to the bluff ordinance and provided the applicant with a list of the permits that would be required for their proposed project. In this response, staff identified the proposed WOAS and front yard privacy fence as items which would still require variances. On September 27, 2021, the applicant updated their variance request to reflect the response they received from staff on September 21, 2021. On October 19, 2021, the applicant requested that their variance request be tabled at the October 19, 2021 Planning Commission meeting in order to allow them time to modify their request. They agreed to waive the required 60-day review period and agreed to extend the deadline to March 31, 2022. On February 28, 2022, the applicant submitted a revised variance request that reduced the proposed extent of the proposed fence to an opaque gate and retained the proposed WOAS. They also included a front yard parking area in their request. DISCUSSION The applicant is requesting that the City grant them a variance to install a 6.5-foot high opaque security gate. The proposed gate would straddle the driveway and be setback approximately 10 feet from the front property line. Since the City Code limits the height of opaque fences within the required 30-foot front yard setback to three feet, a variance is required to permit the proposed opaque gate in this location. The applicant is also requesting variances to allow them to add a 132-square foot shed to the property’s existing 225.5-square foot WOAS, and a deck less than 30 inches in height. The resulting structure would be 357.5 square feet in size with an 8-foot shoreland setback and a 1-foot side yard setback. Since WOASs are limited to a maximum of 250 square feet and subject to 10-foot side and shoreland setback, variances from these standards would be required to accommodate the proposed structure’s size and placement. Finally, the applicant is requesting a variance to allow for a front yard parking pad. Due to the City Code’s requirement that front yards remain unobstructed, save for certain allowed encroachments, and limiting of residential properties to a single access within the right-of-way, variances from these requirements would be required. The applicant has stated that they are requesting a variance from the City’s prohibition on opaque fencing within the front yard setback due to their concern that vehicles entering the driveway during wet or icy conditions will be unable to stop and could crash into their home. They have noted that due to the momentum that would be generated by a vehicle’s downward travel down their steep driveway a gate placed 30 feet back from the front lot line would be much less likely to be able to stop an out of control vehicle than one placed 10 feet back from the front lot line. They have also indicated that they do not believe a three foot high opaque gate would be able to address their safety concerns. 27 Additionally, the applicant has stated that a front yard parking pad is necessary to provide a safe place to park during inclement weather. They have noted that the pad would be located in the area occupied by the property’s former driveway access and that it would not place the property over its permitted 25 percent lot cover limit. Regarding the proposed WOAS, the applicant has stated that the shed is necessary due to the fact that they do not have an area in which to store valuable equipment (patio furniture, boats, etc.) down by the lake and that they have had previous issues with theft due to the inability to secure their property. They observe that the site’s topography creates a difficulty in continuing hauling items from the home to the lake and that a secure storage area is needed to remedy this. They have indicated the requested shed size is the minimum needed to store their canoe and that it is unreasonable for the City to propose that a portion of the recently built existing WOAS be removed due to the cost incurred in its constriction. The have also noted that the proposed location would minimize the sheds visibility from the lake, as required by code, and that there are provisions in the code allowing for a 400 square foot WOAS designed solely for the storage of watercraft and related items. Finally, they note that the proposed shed would not exceed the property’s lot cover limit and would be of a moveable design so as to not impede access to the City’s sanitary sewer line. In evaluating the requested variance for an opaque gate, staff cannot find that the applicant meets the conditions required for granting the requested variance. The applicant has not demonstrated that their security concern could not be addressed through a 6.5-foot high open gate, a 4-foot high chain link gate, or a 3-foot high opaque gate located within the front yard setback, as permitted by City Code. Based on the submitted material, the use of an opaque rather than open design for the gate appears to be a design choice rather than an engineering necessity. Staff believes the City’ prohibition on tall opaque fences and structures within the required front yard setback plays an important role in creating and maintaining neighborhood aesthetics. The existing parking pad that the applicant references is the old driveway access that was slated for removal as part of the driveway realignment in previously submitted and approved plans. The City Code does not permit front yard parking pads due to their increase of impervious surfaces within the right-of- way, increased risk of accidents, and the maintenance issues they can create during snow emergencies, as well as their aesthetic impact on neighborhoods. For these reasons staff cannot support the requested variance. Regarding the proposed WOAS, every riparian property in the city is subject to the same WOAS restrictions and property owners often must choose between lakeshore storage and recreational amenities. Staff believes that the WOAS regulations play an important role in limiting the amount of lot cover, both pervious and impervious, installed along the lake and in preserving the shoreline’s aesthetics. While the applicant is correct that the Code does allow for a 400-square foot WOAS, it does not permit one in conjunction with other amenities, such as the existing deck, and it limits these structures to a 20-foot width. The combined width of the applicant's deck and shed would be approximately 31 feet. Additionally, staff notes that any shed over 200 square feet would need to meet the requirements of the Building Code and the City would not allow the placement of this type of structure in an easement occupied by active infrastructure. For these reasons, staff cannot support the variance as requested; however, the property did have a nonconforming 308-square foot WOAS that was located seven feet from the ordinary high water level (OHWL) and five feet from the side yard setback. Under Variance 2021-07, the new deck was required to maintain those setbacks. While replacing the pre-existing patio and deck with a shed would be considered an expansion of the nonconformity, staff supports granting a variance to allow the applicant a 308-square foot WOAS with an 8-foot shoreland setback and 5-foot side yard setback, consistent with the footprint of the pre- 28 existing WOAS. A full discussion can be found in the attached staff report. RECOMMENDATION Staff recommends the Planning Commission, acting as the Board of Appeals and Adjustments, deny the requested opaque gate variance, denies the requested variance for a front yard parking pad, and approves a 58-square foot water oriented accessory structure size variance, a 5-foot side yard setback variance, and 2-foot shoreland setback variance for the construction of a water oriented accessory structure, subject to the Conditions of Approval, and adopt the attached Findings of Facts and Decision. 1. The applicant shall consult with City staff and apply for required permits, either building or zoning, for all proposed structures (i.e. shed and deck). 2. No construction can occur until the required permits identified in Condition 1 are issued. 3. The applicant shall file for an Encroachment Agreement with the City for any encroachments within public drainage and utility easements. 4. The shed and its appurtenances shall be constructed so that it is removable from the public utility easement, for review and approval by the City prior to issuance of the required permit. 5. The applicant must apply for and receive any all applicable permits from the Riley Purgatory Bluff Creek Water Shed District. ATTACHMENTS Staff Report Findings of Fact and Decision (Partial Approval) Revised Written Justification for Variance Application - 01-28-2022 Updated Variance Submittal - 02-24-2022 Updated Variance Materials Development Review Application Gate 3D Images Pre-existing Parking Pad Images Engineering Comments Water Resources Engineer Comments DNR Comments Neighbor Comments Affidavit of Mailing 29 CITY OF CHANHASSEN PC DATE: March 1, 2022 CC DATE: March 21, 2022 REVIEW DEADLINE: March 31, 2022 CASE #: PC 2021-07B BY: MYW SUMMARY OF REQUEST: The applicant is requesting a variance to construct a 6.5-foot high opaque gate within the required front yard setback, a variance for a front yard parking pad, and variances from the water oriented accessory structure (WOAS) maximum size limit, shoreland setback, and side yard setback to add a storage shed to the property’s existing WOAS . LOCATION:6609 Horseshoe Curve OWNER:Elise and Brian Bruner 6609 Horseshoe Curve Chanhassen, MN 55317 PRESENT ZONING: “RSF” –Single-Family Residential District 2040 LAND USE PLAN: Residential Low Density ACREAGE:.64 acres DENSITY: NA LEVEL OF CITY DISCRETION IN DECISION-MAKING: The City’s discretion in approving or denying a variance is limited to whether or not the proposed project meets the standards in the Zoning 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. Notice of this public hearing has been mailed to all property owners within 500 feet. PROPOSAL/SUMMARY: The applicant is requesting that the City grant them a variance to install a 6.5-foot high opaque security gate. The proposed gate would straddle the driveway and be setback approximately 10 feet from the front property line. Since the City Code limits the height of opaque fences within the required 30-foot front yard setback to three feet, a variance is required to permit the proposed PROPOSED MOTION: “The Chanhassen Board of Appeals and Adjustments denies the requested opaque gate variance, denies the requested variance for a front yard parking pad, and approves a 58-square foot water oriented accessory structure size variance, a 5-foot side yard setback variance, and 2-foot shoreland setback variance for the construction of a water oriented accessory structure, subject to the Conditions of Approval, and adopts the attached Findings of Facts and Decision.” 30 6609 Horseshoe Curve Request for Variance March 1, 2022 Page 2 opaque gate in this location. The applicant is also requesting variances to allow them to add a 132-square foot shed to the property’s existing 225.5-square foot WOAS, and a deck less than 30 inches in height. The resulting structure would be 357.5 square feet in size with an 8-foot shoreland setback and a 1-foot side yard setback. Since WOASs are limited to a maximum of 250 square feet and subject to 10-foot side and shoreland setbacks, variances from these standards would be required to accommodate the proposed structure’s size and placement. Finally, the applicant is requesting a variance to allow for a front yard parking pad. Due to the City Code’s requirement that front yards remain unobstructed, save for certain allowed encroachments, and limiting of residential properties to a single access within the right-of-way, variances from these requirements would be required. The applicant has stated that they are requesting a variance from the City’s prohibition on opaque fencing within the front yard setback due to their concern that vehicles entering the driveway during wet or icy conditions will be unable to stop and could crash into their home. They have noted that due to the momentum that would be generated by a vehicle’s downward travel down their steep driveway a gate placed 30 feet back from the front lot line would be much less likely to be able to stop an out of control vehicle than one placed 10 feet back from the front lot line. They have also indicated that they do not believe a three foot high opaque gate would be able to address their safety concerns. Additionally, the applicant has stated that a front yard parking pad is necessary to provide a safe place to park during inclement weather. They have noted that the pad would be located in the area occupied by the property’s former driveway access and that it would not place the property over its permitted 25 percent lot cover limit. Regarding the proposed WOAS, the applicant has stated that the shed is necessary due to the fact that they do not have an area in which to store valuable equipment (patio furniture, boats, etc.) down by the lake and that they have had previous issues with theft due to the inability to secure their property. They observe that the site’s topography creates a difficulty in continuing hauling items from the home to the lake and that a secure storage area is needed to remedy this. They have indicated the requested shed size is the minimum needed to store their canoe and that it is unreasonable for the City to propose that a portion of the recently built existing WOAS be removed due to the cost incurred in its constriction. The have also noted that the proposed location would minimize the shed’s visibility from the lake, as required by Code, and that there are provisions in the Code allowing for a 400-square foot WOAS designed solely for the storage of watercraft and related items. Finally, they note that the proposed shed would not exceed the property’s lot cover limit and would be of a moveable design so as to not impede access to the City’s sanitary sewer line. In evaluating the requested variance for an opaque gate, staff cannot find that the applicant meets the conditions required for granting the requested variance. The applicant has not demonstrated that their security concern could not be addressed through a 6.5-foot high open gate, a 4-foot high chain link gate, or a 3-foot high opaque gate located within the front yard setback, as permitted by City Code. Based on the submitted material, the use of an opaque rather than open 31 6609 Horseshoe Curve Request for Variance March 1, 2022 Page 3 design for the gate appears to be a design choice rather than an engineering necessity. Staff believes the City’s prohibition on tall opaque fences and structures within the required front yard setback plays an important role in creating and maintaining neighborhood aesthetics. The existing parking pad that the applicant references is the old driveway access that was slated for removal as part of the driveway realignment in previously submitted and approved plans. The City Code does not permit front yard parking pads due to their increase of impervious surfaces within the right-of-way, increased risk of accidents, and the maintenance issues they can create during snow emergencies, as well as their aesthetic impact on neighborhoods. For these reasons staff cannot support the requested variance. Regarding the proposed WOAS, every riparian property in the city is subject to the same WOAS restrictions and property owners often must choose between lakeshore storage and recreational amenities. Staff believes that the WOAS regulations play an important role in limiting the amount of lot cover, both pervious and impervious, installed along the lake and in preserving the shoreline’s aesthetics. While the applicant is correct that the Code does allow for a 400-square foot WOAS, it does not permit one in conjunction with other amenities, such as the existing deck, and it limits these structures to a 20-foot width. The combined width of the applicant’s deck and shed would be approximately 31 feet. Additionally, staff notes that any shed over 200 square feet would need to meet the requirements of the Building Code and the City would not allow the placement of this type of structure in an easement occupied by active infrastructure. For these reasons, staff cannot support the variance as requested; however, the property did have a nonconforming 308-square foot WOAS that was located seven feet from the ordinary high water level (OHWL) and five feet from the side yard setback. Under variance 2021-07, the new deck was required to maintain those setbacks. While replacing the pre-existing patio and deck with a shed would be considered an expansion of the nonconformity, staff supports granting a variance to allow the applicant a 308-square foot WOAS with an 8-foot shoreland setback and 5- foot side yard setback, consistent with the footprint of the pre-existing WOAS. APPLICABLE REGULATIONS Chapter 1, Section 1-2, Rules of Construction and Definitions Chapter 20, Article II, Division 3. Variances Chapter 20, Article II, Division 4. Nonconforming Uses Chapter 20, Article VII. Shoreland Management District Chapter 20, Article XII, “RSF” Single-Family Residential District Section 20-615, Lot Requirements and Setbacks Chapter 20, Article XXIII, Division 5. Fences and Walls BACKGROUND General History In April of 1999, the City approved a two-lot subdivision with variances allowing for a 20% driveway grade and 81-foot shoreland setback.* 32 6609 Horseshoe Curve Request for Variance March 1, 2022 Page 4 *Note: At the time this subdivision was proposed, the ordinance required structures maintain the shoreland setbacks of the adjacent properties. This requirement was subsequently repealed and properties are subjected to the current 75-foot shoreland setback. In July of 1999, the City issued a building permit for the construction of a single-family home. In March of 2000, the City issued a building permit to add a deck. In November of 2018, the City issued a building permit for a significant remodel that include the demolition of the existing deck and patio. In June of 2020, the City issued a building permit to add a rooftop deck. In April of 2021, the applicant applied for a building permit in compliance with Variance 2021-07. Several permits for interior work and maintenance are also on file with the City. Variance 2021-07 History On May21, 2020, the designer contacted staff with a proposal for the site that included a large concrete patio off the rear of the home, a concrete patio and large WOAS near the lake, and front yard parking pad. On May 22, 2020, staff expressed concerns about the likely presence of a bluff on the property and provided the designer with the sections of the City Code that they believed would apply to the proposal. Staff indicated that the proposal would require multiple variances and that a survey would be required to determine the exact nature and extent of the variances. On June 16, 2020, the designer sent a revised plan and requested a meeting with staff to discuss potential variances. On June 18, 2020, staff met with the applicant’s designer to discuss the proposed project. During the meeting, staff expressed concern regarding the proposed size and placement of the WOAS, proposed front yard parking, and presence of impervious surface within the bluff impact zone. On July 16, 2020, staff and the designer met to discuss the proposed project. During the meeting, staff expressed concern regarding the proposed size and placement of the WOAS but was supportive of the plans to stabilize the bluff and proposed pervious patio above the bluff. On November 20, 2020, staff and the designer met to discuss the proposed project. The proposed WOAS had been scaled back to address staff’s concerns. On November 30, 2020, staff and the designer met to discuss the proposed project. No significant concerns were raised. 33 6609 Horseshoe Curve Request for Variance March 1, 2022 Page 5 On December 18, 2020, the applicant submitted the variance request. On January 19, 2021, the Planning Commission approved a 19-foot bluff impact zone and 29-foot bluff setback variance for the construction of a deck, a bluff impact zone and bluff setback variance for the construction of retraining walls within the bluff, and a 25-foot bluff, 5-foot side yard, and 3- foot shoreland setback for a WOAS. On June 4, 2021, the applicant submitted a variance request to increase the width of the deck from 12 to 14 feet, replace the western concrete window well and retaining wall with a living wall system, and add a 9-foot by 9-foot equipment pad and associated retaining wall to the east of the house. On June 17, 2021, staff contacted the applicant expressing concern over the proposed equipment pad and associated retaining wall’s encroachment into the bluff, and requested that the applicant investigate the possibilityof relocating or modifying the proposed equipment pad. On June 22, 2021, the applicant agreed to remove the 9-foot by 9-foot pad and associated retaining wall, revising the design to work within the existing boulder wall and AC pad’s encroachment into the bluff setback. On July 6, 2021, the Planning Commission approved a 20-foot bluff impact zone and 30-foot bluff setback variance for the construction of a deck and a bluff impact zone and bluff setback variance for the construction of retaining walls within the bluff. On August 20, 2021, staff received a complaint that work on the site was exceeding what was permitted by the variance. Staff conducted an inspection and found that no permit had been issued and that work was being conducted by the lakeshore. A stop work order was issued. Subsequently, the applicant’s contractor received a zoning permit for the deck and stairs and this portion of the stop work order was lifted. He was informed that a grading permit would be needed to resume work on the slope. From August 20, 2021 to September 16, 2021, staff and the applicant and their representatives had multiple discussions centering on the scope of work being conducted on the property, what had been approved as part of the variance, what ordinances and restrictions applied, and what permits were needed. On September 17, 2021, the applicant submitted a variance request asking the City to either revise their determination that a bluff was present on the property or grant a series of variances from the provisions of the bluff ordinance. The applicant also requested variances to add a shed to their existing WOAS and install a 6.5-foot opaque privacy fence within the front yard and shoreland setback. 34 6609 Horseshoe Curve Request for Variance March 1, 2022 Page 6 On September 21, 2021, staff, after consulting with the City attorney, acknowledged that the property was not subject to the bluff ordinance and provided the applicant with a list of the permits that would be required for their proposed project. In this response, staff identified the proposed WOAS and front yard and shore land privacy fence as items which would still require variances. On September 27, 2021, the applicant updated their variance request to reflect the response they received from staff on September 21, 2021. On October 19, 2021, the applicant requested that their variance request be tabled at the October 19, 2021 Planning Commission meeting in order to allow them time to modify their request. They agreed to waive the required 60-day review period and agreed to extend the deadline to March 31, 2022. On February 28, 2022, the applicant submitted a revised variance request that reduced the propose extent of the proposed fence to an opaque gate and retained the proposed WOAS. They also included a front yard parking area in their request. SITE CONSTRAINTS Zoning Overview The property is zoned Single-Family Residential District and is located within the Shoreland Management District. This zoning classification requires riparian lots to be a minimum of 20,000 square feet, have front and rear yard setbacks of 30 feet, side yard setbacks of 10 feet, a shoreland setback of 75 feet, and limits parcels to a maximum of 25 percent lot cover. Residential structures are limited to 35 feet in height, and properties are allowed one WOAS up to 250 square feet in size within the 75-foot shoreland setback. The shoreland ordinance allows the construction of stairways, lifts, and landings, subject to design criteria. A portion of the property is also encumbered by a sanitary sewer easement. The lot is 27,878 square feet with 6,377 square feet (23 percent) lot cover. The home had a preexisting WOAS which was a 308-square foot structure with a 5-foot side yard setback and 7- foot shoreland setback. This WOAS was located within the City’s sanitary sewer easement. The WOAS was replaced with a 225.5-square foot WOAS with a 5-foot side yard setback and 3-foot shoreland setback. The house and other features appear to meet all other requirements of the City Code. Bluff Creek Corridor The property is not encumbered by the Bluff Creek Overlay District. Bluff Protection 35 6609 Horseshoe Curve Request for Variance March 1, 2022 Page 7 There is not a bluff on the property. Note: Based on the initial survey provided, staff determined that a bluff was present on the property. The property owner subsequently demonstrated that the City’s definition of bluff would not apply to the property and staff has acknowledged that the original bluff determination was in error. Floodplain Overlay This property is not within a floodplain. Shoreland Management The property is located within a Shoreland Protection District. This District requires a 75-foot structure setback from the lake’s OHWL and limits the property to a maximum impervious surface coverage of 25 percent. The shoreland ordinance permits one WOAS to be located within the 75-foot shoreland setback, provided that it is at least 10 feet from the OHWL, no larger than 250 square feet, and has a maximum height of 10 feet. Stairways, lifts and landings providing access up and down bluffs and steep slopes to shore areas are also permitted so long as they do not exceed four feet in width, do not cause soil erosion, and meet other design criteria. Fences within the shoreland setback are limited to 3.5 feet in height. Wetland Protection There is not a wetland located in the development site. NEIGHBORHOOD Pleasant View/Alicia Heights 36 6609 Horseshoe Curve Request for Variance March 1, 2022 Page 8 The plat for Pleasant View was recorded in March of 1910 and Alicia Heights, a two-lot subdivision within Pleasant View, was recorded in June of 1999. Pleasant View is one of the oldest neighborhoods in the city and it predates the establishment of the City of Chanhassen and its ordinances. The neighborhood is located on a peninsula jutting into Lotus Lake and this combined with challenging topography meaning it has a large number of atypically shaped lots, many of which do not conform to current City standards. Some of the homes are original to the neighborhood, while others are new construction or have been extensively updated. Many properties have nonconforming elements or have received variances due to the age of the neighborhood and atypical configuration of the lots. Variances within 500 feet: 6605 Horseshoe Curve (PC 1991-09): 17’ shoreland setback (deck) – Approved 6609 Horseshoe Curve (PC 2021-07): 19’ bluff impact zone and 29’ bluff setback (deck), bluff impact zone and bluff setback (retaining wall), and 25’ bluff, 5’ side, and 3’ shoreland setback (WOAS) – Approved* (PC 2021-07A): 20’ bluff impact zone and 30’ bluff setback (deck) and bluff impact zone and bluff setback (retaining wall) – Approved* 6631 Horseshoe Curve (PC 1996-07): 15’ shoreland setback (addition and attached garage) – Approved 6677 Horseshoe Curve (PC 1982-03): 25’ front and 7’ side setback (detached garage) – Approved 6681 Horseshoe Curve (PC 1986-15): 6’ side setback (detached garage) – Withdrawn (PC 1987-03): 6’ side setback (detached garage) – Approved (PC 2002-10): 16’ front and 5’ side setback, 4% LC (detached garage and addition) – Approved 6691 Horseshoe Curve (PC 1987-14): 19.6’ front setback (detached garage) – Approved 37 6609 Horseshoe Curve Request for Variance March 1, 2022 Page 9 6697 Horseshoe Curve (PC 1985-02): 9.03’ side setback (addition, intensify nonconforming) – Approved *Bluff portions of the variance subsequently rendered moot by determination that no bluff is present on the parcel. ANALYSIS Opaque Gate The applicant is requesting a variance for an opaque gate setback approximately 10 feet from the front property line. The applicant is concerned that due to the driveway’s steep 19.5 percent slope delivery trucks and other vehicles entering the driveway during wet or icy conditions may be unable to stop. The applicant has noted that since momentum increases with speed and distance traveled, placing the gate near to the property line will increase its ability to stop out of control vehicles. They have also stated that a 3-foot high opaque gate on the downward slope would be unable to address their security concerns. In their narrative the applicant states that their only alternative under the City Code is an opaque fence of three feet or less in height, which they do not believe will be able to provide the required level of security; however, the City Code also allows for open fencing, defined as fencing with no more than 20 percent opacity, to be located within the required front yard setback with a maximum height of 6.5 feet and for chain link fences with a maximum height of four feet to be located in this area. While the applicant is proposing placing an opaque gate 10 feet back from the property line, the City Code would allow the placement of 3-foot opaque, 6.5-foot open, or 4-foot chain link fences within the front yard setback. In order for the City to support the variance request, it would need to be the case that none of the fencing permitted by the City Code could achieve the applicant’s stated security goals. 38 6609 Horseshoe Curve Request for Variance March 1, 2022 Page 10 While the applicant expresses concern over the ability of a 3-foot opaque gate to stop a vehicle, staff would note that SUVs tend to have ground clearances of between 6-8 inches, with the highest ground clearances being around 12 inches. Even for vehicles at the upper end of this ground clearance, a three foot high barrier would provide a significant obstacle in the event of a low speed collision, such as would happen with a vehicle sliding into the fence immediately after decelerating for the turn into the driveway. It is unlikely that a vehicle traveling at those speeds would flip over a 3-foot barrier. To provide context, the Minnesota Department of Transportation requires roadway guardrails to be between 28 inches and 31 inches in height, a height selected in part due to the inability for most vehicles to surmount it. The City Code would also permit the applicant to install a 6.5-foot open fence, i.e. a fence with no more than 20 percent opacity, in the location where the applicant is proposing to install the opaque fence. It is not clear that an open fence would be unable to provide an adequate stopping mechanism. Staff would expect that the force needed to push open a gate’s automatic opening mechanism, which by necessity is designed to open, would be less than the force required to break a gate off of its hinges or break through the materials making up the gate itself. Staff does not believe that a vehicle traveling at low speeds would have sufficient force to breach an open construction steel gate, assuming the opening mechanism held. The applicant has not demonstrated that an opaque style gate is necessary to withstand a low speed impact. It should also be noted that variances should only be granted to the minimum extent necessary to provide relief. The applicant is proposing a privacy style gate with nearly 100 percent opacity in area that does not permit fencing of that height with over 20 percent opacity. If it could be demonstrated that a gate meeting the City’s definition of open or meeting the City’s 3-foot height restriction for opaque fences is structurally unable to provide adequate stopping power, the minimum deviation from the 20 percent opacity or height standard necessary for the gate to serve the proposed function would be the appropriate level of relief. Finally, the City Code does allow the placement of opaque gates of up to 6.5 feet in height behind the required 30-foot front yard setback. There are numerous gates on the market that are rated to stop 15,000 pound vehicles traveling at speeds of 30 per hour which would be permitted by City Code in that location. Staff understands that the applicant is not proposing installing a K4 or M30 rated barrier and that the proposed placement 10 feet from the lot line is an attempt to avoid the need for that robust of a structure as well as to limit the damage to any vehicle that slides into the gate, but this further illustrates the presence of unexplored options within the bounds of City Code. 39 6609 Horseshoe Curve Request for Variance March 1, 2022 Page 11 Staff sympathizes with the applicant’s concern and agrees that their desire to ensure their home is not damaged by vehicle’s sliding down their driveway is reasonable; however, staff believes there are options permitted by the City Code that would provide a similar level of protection as the proposed opaque gate. In order to grant a variance, the City must find that “…the property owner proposes to use the property in a reasonable manner not permitted by this chapter”, in this case the reasonable manner of protecting the home from out of control vehicles is permitted by the chapter. The use of a 6.5-foot high opaque gate in the proposed location rather than a gate meeting the requirements of the ordinance is a design choice that is not necessitated by any unique feature of the property. For this reason, staff cannot support the requested variance. Front Yard Parking Pad The applicant is proposing adding a parking pad located partially within the public right-of-way and entirely within the front yard drainage and utility easement and front yard setback. The applicant has indicated that they are currently using the property’s old driveway access as a front yard parking area and that it is very helpful in inclement weather. They have indicated their desire to place a permanent parking pad in that location and noted that it would not exceed the property’s 25-percent lot cover limit. Staff would note that when the applicant’s designer first approached staff with a conceptual plan for improving the property, it included a proposed guest parking area within the right-of-way and front yard setback and staff indicated that this would not be permitted by City Code in an email dated May 22, 2020. All subsequent proposals did not include a front parking area and all subsequently approved plans showed that the impervious surface and access associated with the former driveway location would be removed. Permits were granted for the driveway realignment because they showed that the existing driveway and its access would be removed. The City allows residential property’s a single driveway access in order to limit the amount of impervious surface within the public right of way and to provide for safe and efficient street networks. Parking pads within the public right-of-way increase the risk of accidents, due to vehicles colliding with parked vehicles or vehicles entering the street from unexpected locations. Horseshoe Curve is a narrow public road and staff is concerned that allowing parked cars abutting the road could intensify the risk of accidents. In addition to the potential safety concerns, front yard parking pads can create street maintenance issues during snow emergencies. Finally, the City prohibits front yard parking areas for aesthetic reasons as they result in the replacement of lawns with large expanses of paved surfaces. The City Code also limits driveway access to a maximum width of 24 feet at the right-of-way line, as part of its effort to limit the amount of impervious surface within the right-of-way. The applicant’s proposal would create an approximately 30-foot wide parking pad in addition to the 16-foot wide driveway, measured at the property line. The combined width of these accesses would be nearly double what is permitted by City Code and would result in 50 percent of the property’s street frontage being impervious surface. Granting the requested variance would not be consistent with the 40 6609 Horseshoe Curve Request for Variance March 1, 2022 Page 12 ordinance’s intent of preserving front yard greenspace and limiting impervious surfaces within the right-of-way. Staff notes that while the neighboring property has a parking/turn around area associated with its drive, it is separated from the roadway and appears to be located within its owner’s property. This feature can be observed on aerials dating to 1997 and would be considered a nonconforming driveway turnaround due to its location outside of the public right-of-way but within the property’s drainage and utilities easement. It is the intent of the City Code to encourage the elimination of nonconforming uses and the presence of a nonconformity within a neighborhood should not be used as grounds to allow for the proliferation of deviations from the City Code. For the aforementioned reasons, staff cannot support a variance request to locate a parking pad within the public right-of-way and the applicant’s front yard. Water-Oriented Accessory Structure (WOAS) The applicant is requesting a 107.5-square foot variance to allow them to add a 132-square foot shed to the property’s existing 225.5-square foot WOAS. The proposed placement of the shed would put it within one foot of the side lot line and eight feet from the OHWL. In the graphic (shown at right), the footprint of the pre-existing WOAS is shown in light purple, the proposed revised placement of the deck which was replaced is shown in black, and the proposed shed is shown in light blue. The applicant is requesting variances to permit the construction of the shed due to the challenges of transporting equipment down the steep slope from the home to the lake and the need to secure items that need to be stored by the lake, and has stated that the proposed size is the minimum necessary to allow them to store their canoe within the shed. The City recognizes the need for lakeshore storage and recreational amenities, as well as the importance of minimizing the number and size structures located along the shore. The City’s WOAS ordinance strikes a balance between these two needs by permitting one structure of up to 250 square feet located 10 feet from the side yard and 10 feet from the OHWL. For the purpose of applying the ordinance’s one structure provision, the City treats adjacent structures as a single structure. Every riparian parcel in the city is subject to these standards, unless they benefit from a legal nonconformity or variance, and though many owners would like additional storage space or multiple structures, City staff has always taken the position that property owners must prioritize how they configure their allowed WOAS. The Minnesota Department of Natural Resources 41 6609 Horseshoe Curve Request for Variance March 1, 2022 Page 13 responded to the City’s request for comment by noting that variances from the WOAS standards should only be granted when there are rare and unique circumstances. The DNR has recommend that the City not approve any deviation from the ordinance’s standards. Historically, variances have only been supported by City staff when a pre-existing condition is present. In this case, the applicant’s property did have a preexisting WOAS that was 308 square feet in size, five feet from the side lot line, and seven feet from the OHWL. The presence of this nonconforming structure was the rationale for staff formalizing the nonconforming setbacks as part of Variance 2021-07 and permitting the installation of a movable structure over the City’s sanitary sewer line, a situation that would not normally be permitted. While increasing the height of a nonconforming structure, such as by adding a shed on top of an existing patio or deck, would be an expansion of a nonconformity and require a variance, staff believes it would be consistent with past practice to support granting a variance allowing the applicant a 308-square foot structure setback five feet from the side lot line. The proposed increase from a 7-foot OHWL setback to an 8-foot OWHL setback would be a reduction to the previous nonconformity. The applicant could meet the 308-square foot requirement by either placing the proposed shed partially over the existing deck or removing 49.5 square feet of the existing decking. Alternatively, a smaller shed could be constructed. Any structure in the area would need to meet the Engineering Department’s requirements for encroachment in the sanitary sewer easement. The applicant has not demonstrated that there are any unique features to their lot which would justify allowing an expansion of their WOAS beyond the size of the pre-existing structure or which would require it to encroach closer than five feet to the side lot line. As the applicant has noted, they initially chose to construct the deck instead of a storage structure within the preexisting WOAS’s footprint and have now determined that a shed is necessary. The applicant has stated that they chose to construct the deck because they had been informed by staff that they had to choose between a shed or a deck. On July 8, 2020 staff sent the applicant’s designer a written response to questions regarding the City’s WOAS ordinance where staff stated “The City has considered patios/decks attached to a shed/boat house to constitute a single structure with an aggregate size limit of 250 sq. ft.” This was significantly in advance of the November 20, 2020 redesign where the designer submitted a plan showing a sub-250-square foot WOAS and the initial December 18, 2020 variance submittal. Additionally, staff’s initial May 22, 2020 response to a WOAS inquiry for the property noted “These structures are limited to a maximum of 250 square feet (including the building and any associated patio/decking).” Given that accurate information was provided to the party responsible for the design in writing in advance of revisions and the initial variance submittal, staff cannot agree with the applicant’s statement that staff informed them they could have either a deck or a shed, but not a structure incorporating both. 42 6609 Horseshoe Curve Request for Variance March 1, 2022 Page 14 The applicant notes that the City Code allows for an up to 400-square foot shed to be placed on properties solely for the storage of boats and boating-related equipment. While this is correct, that is not the use the applicant is proposing. The applicant is proposing a combined deck and shed WOAS which is not entitled to those dimensions. Additionally, the 400-square foot boathouses are limited to a maximum width of 20 feet, while the applicant is proposing an approximately 31-foot wide structure. Finally, while the WOAS does allow for 400-square foot structures, these structures would require a building permit and Engineering would not support placing a structure meeting the requirements of the State Building Code over an active sanitary sewer easement. It should be noted that the Engineering department has expressed concerns in their memo about the desirability of approving any variance accommodating the placement of a shed overtop the sanitary sewer. They have stated that they feel the proposed structure and location should be considered an encumbrance that would alter the intended use of the easement, and as such they are recommending that the WOAS variance be denied in its entirety. The constraints created by the presence of the deck do not justify the requested variances. For these reasons, staff is recommending that only a variance commensurate with the pre-existing nonconforming structures size and encroachment be approved. Impact on Neighborhood Pleasant View is an older neighborhood with many atypically shaped lots, nonconformities, and variances; however, to staff’s knowledge, no property in the neighborhood has 6.5-foot opaque gate within the front yard. Fences and gates have a large visual impact. Granting the requested fence variance would negatively impact the neighborhood’s aesthetics, especially if other residents requested and were granted similar variances. Similarly, front yard parking pads are highly visible encroachments into required front yards and the public right-of-way. Many properties with downward sloping driveways or narrow driveways may wish to have an additional parking area. The proliferation of these types of structures would negatively impact the character of the neighborhood. Finally, due to their shoreland location, WOASs are highly visible. Properties with larger or more numerous structures than others are noticed and cited by residents interested in increasing the size of or adding an additional WOAS to their own properties. The aesthetic and environmental benefits that come from limiting the size and number of WOASs can only be realized if the City universally applies these standards. RECOMMENDATION Staff recommends the Planning Commission, acting as the Board of Appeals and Adjustments, deny the requested opaque gate variance, denies the requested variance for a front yard parking pad, and approves a 58-square foot water oriented accessory structure size variance, a 5-foot side yard setback variance, and 2-foot shoreland setback variance for the construction of a water 43 6609 Horseshoe Curve Request for Variance March 1, 2022 Page 15 oriented accessory structure, subject to the Conditions of Approval, and adopt the attached Findings of Facts and Decision. 1. The applicant shall consult with City staff and apply for required permits, either building or zoning, for all proposed structures (i.e. shed and deck). 2. No construction can occur until the required permits identified in Condition 1 are issued. 3. The applicant shall file for an Encroachment Agreement with the City for any encroachments within public drainage and utility easements. 4. The shed and its appurtenances shall be constructed so that it is removable from the public utility easement, for review and approval by the City prior to issuance of the required permit. 5. The applicant must apply for and receive any all applicable permits from the Riley Purgatory Bluff Creek Water Shed District. ATTACHMENTS 1. Findings of Fact and Decision (Partial Approval) 2. Variance Document (Partial Approval) 3. Development Review Application 4. Variance Request Justification 5. Staff Response to Variance Request 6. Updated Variance Request Justification 7. Plan Set 8. Variance Documents 9. Water Resources Coordinator Memo 10. Engineering Dept. Memo 11. Dept. of Natural Resources Email 12. Affidavit of Mailing g:\plan\2021 planning cases\21-07b 6609 horseshoe curve 10-19-21 variance request\3-1-22 resumittal\staff report_6609 horseshoe curve_var_3_revised.docx 44 1 CITY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES, MINNESOTA FINDINGS OF FACT AND DECISION (PARTIAL APPROVAL) IN RE: Application of Elise Bruner and Brian Bruner for a fence height variance and water-oriented accessory structure (WOAS) size and setback variances on a property zoned Single-Family Residential District (RSF) - Planning Case 2021-07B. On March 1, 2022, the Chanhassen Planning Commission, acting as the Board of Appeals and Adjustments, met at its regularly scheduled meeting to consider the application. The Planning Commission conducted a public hearing on the proposed variances preceded by published and mailed notice. The Board of Appeals and Adjustments makes the following: FINDINGS OF FACT 1. The property is currently zoned Single-Family Residential District (RSF). 2. The property is guided in the Chanhassen Comprehensive Plan for Residential Low Density. 3. The legal description of the property is: Lots 1, Block 1, Alicia Heights 4. Variance Findings – Section 20-58 of the City Code provides the following criteria for the granting of a variance: a. Variances shall only be permitted when they are in harmony with the general purposes and intent of this Chapter and when the variances are consistent with the Comprehensive Plan. Finding:The intent of the City Code’s prohibition on tall opaque front yard fences is to create an attractive and consistent neighborhood aesthetic. The City Code allows for the use of open fences of up to 6.5 feet in hieght, chain link fences of up to four feet in height, and opaque fences of up to three feet in height to address security concerns. Granting the requested variances from the City’s fence height standards would not be consistent with the general purposes and intent of the City’s Zoning Code. The City Code prohibits the placement of parking pads within the required front yard to limit the amount of impervious surface in the right-of-way, provide an attractive and consistent neighborhood aesthetic, and to provide for safe and efficient street networks. Granting the requested variances to permit a front yard parking pad would not be consistent with the general purposes and intent of the City’s Zoning Code. It is the intent of the City Code to limit the size and location of structures within the required shoreland setback and to balance recognizing the rights of nonconforming structures to continue to exist with preventing their expansion. It would not be in line with the intent of the Zoning 45 2 Code to permit the applicant to construct a WOAS larger than the nonconforming WOAS that was previously present on the site. It would be consistent with the intention of the nonconforming use ordinance to grant a variance allowing the applicant to replace a portion of the nonconforming WOAS with a shed, increasing the height of the nonconformity in exchange for increasing the shoreland setback, so long as the size and side yard setback of the nonconforming WOAS are not increased. b.When there are practical difficulties in complying with the zoning ordinance. "Practical difficulties" as used in connection with the granting of a variance, means that the property owner proposes to use the property in a reasonable manner not permitted by this Chapter. Practical difficulties include, but are not limited to, inadequate access to direct sunlight for solar energy systems. Finding:The applicant has not demonstrated that they cannot achieve their goals of increasing their property’s security within the bounds of the City’s Code of Ordinances without the need for a variance. The applicant has not demonstrated why the right-of-way access and driveway configurations permitted by the City Code do not provide reasonable parking options. The applicant’s desire for a WOAS to store equipment is permitted by the City’s Code of Ordinances; however, the requested size and position is not. The applicant has the ability to reconfigure the proposed WOAS to maintain the size and encroachments of the nonconforming WOAS that was previously present on the site. c. That the purpose of the variation is not based upon economic considerations alone. Finding: The variance request is not solely based upon economic considerations. d. The plight of the landowner is due to circumstances unique to the property not created by the landowner. Finding:The stated front yard security concerns can be addressed through mechanisms other than the proposed gate. The proposed opaque design for the gate appears to be a design choice rather than a requirement for the gate to serve its intended function. While the driveway grade is steep, the property was adequately served by the pervious driveway without a separate front yard parking pad for over twenty years. The applicant’s requested variances from the City’s WOAS standards are the result of their previous decision to replace the previous WOAS with an at-grade deck rather than a storage shed and their subsequent realization that storage space was necessary. No unique features are present that would prevent the applicant from constructing a WOAS that maintains the size and encroachments of the nonconforming WOAS that was previously present on the site. e. The variance, if granted, will not alter the essential character of the locality. Finding: Pleasant View is an older neighborhood with many atypically shaped lots, nonconformities, and variances; however, to staff’s knowledge no property in the neighborhood has a 6.5-foot opaque gate within the front yard. Fences and gates have a large visual impact. 46 3 Granting the requested fence variance would negatively impact the neighborhood’s aesthetics, especially if other residents requested and were granted similar variances. Similarly, front yard parking pads are highly visible encroachments into required front yards and the public right-of- way. Many properties with downward sloping driveways or narrow driveways may wish to have an additional parking area. The proliferation of these types of structures would negatively impact the character of the neighborhood. Finally, due to their shoreland location, WOASs are highly visible. Properties with larger or more numerous structures than others are noticed and cited by residents interested in increasing the size of or adding an additional WOAS to their own properties. The aesthetic and environmental benefits that come from limiting the size and number of WOASs can only be realized if the City universally applies these standards. f. Variances shall be granted for earth-sheltered construction as defined in Minnesota Statutes Section 216C.06, subdivision 14, when in harmony with this Chapter. Finding: This does not apply to this request. 5. The planning report #2021-07B, dated March 1, 2022, prepared by MacKenzie Young-Walters, is incorporated herein. DECISION The Chanhassen Board of Appeals and Adjustments, denies the requested opaque gate variance, denies the requested variance for a front yard parking pad, and approves a 58-square foot water oriented accessory structure (WOAS) size variance, a 5-foot side yard setback variance, and 2-foot shoreland setback variance for the construction of a water oriented accessory structure, subject to the Conditions of Approval, and adopt the attached Findings of Facts and Decision. 1. The applicant shall consult with City staff and apply for required permits, either building or zoning, for all proposed structures (i.e. shed and deck). 2. No construction can occur until the required permits identified in Condition 1 are issued. 3. The applicant shall file for an Encroachment Agreement with the City for any encroachments within public drainage and utility easements. 4. The shed and its appurtenances shall be constructed so that it is removable from the public utility easement, for review and approval by the City prior to issuance of the required permit. 5. The applicant must apply for and receive any all applicable permits from the Riley Purgatory Bluff Creek Water Shed District. ADOPTED by the Chanhassen Planning Commission this 1st day of March, 2022. CITY OF CHANHASSEN BY: Mark von Oven, Chairman g:\plan\2021 planning cases\21-07b 6609 horseshoe curve 10-19-21 variance request\findings of fact and decision 6609 horseshoe curve ( partial approval).docx 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 BRUNER RESIDENCE ENTRY GATE AND SHED VARIANCE PACKAGE Issued: January 28, 2022 L000 PROJECT INFORMATION N/A Sheet #Title PRELIMINARY PRICING SET VARIANCE APPLICATION BID SET PERMIT SET VARIANCE APPLICATION REVISIONS CD SET ENTRY GATE AND SHED VARIANCE L000 PROJECT INFORMATION ●●●●●●● L001 GENERAL NOTES ●●●●●● L009 EXISTING INCOMING SURVEY ●● L010 EXISTING CONDITIONS + REMOVALS PLAN ●●●●●●● L011 OVERLAY DIAGRAM ●●●●● L101 SITE PLAN ●●●●●●● L102 SURFACING + WALLS PLAN ●●●● L103 SITE FURNISHINGS + LIGHTING PLAN ●●●● L201 GRADING+ DRAINAGE PLAN ●●●●●●● L401 LANDSCAPE PLAN ●●●●●● L501 WALL + SITE ELEMENT ELEVATIONS ●●●●●● L502 ENTRY GATE ENTRY DIAGRAM ● L601 WALL, STAIR, + SURFACING DETAILS ●●●●●● L602 DRAINAGE + LIGHTING DETAILS ●●●●●● L603 SITE ELEMENT DETAILS ●●●●● L604 SPA AND PLUNGE POOL DETAILS ● L605 WEST STAIRCASE HELICAL PIER LAYOUT ● L606 ENTRY GATE DETAILS ● L607 PLANTING DETAILS ●●●●●●● L609 EROSION CONTROL + TREE PROTECTION DETAILS ●●●●●●● L700 SCHEDULES + SPECIFICATIONS ● SHEET INDEX LOCATION MAP SITE ADDRESS: 6609 HORSESHOE CURVE CHANHASSEN, MN 55317 LOT SIZE: SEE EXISTING SURVEY INFORMATION LEGAL DESCRIPTION: SEE EXISTING SURVEY INFORMATION ZONING: SEE EXISTING SURVEY INFORMATION BUILDING SETBACK REQUIREMENTS SEE EXISTING SURVEY INFORMATION AND VARIANCE APPLICATION FOR PROJECT JURISDICTION: CITY OF CHANHASSEN, MN OWNER: BRIAN AND ELISE BRUNER 6609 HORSESHOE CURVE CHANHASSEN, MN 55317 GENERAL CONTRACTOR: SURVEY INFO PROVIDED BY: EGAN, FIELD & NOWAK, INC. 1229 TYLER STREET NE #100 MINNEAPOLIS, MN 55413 T 612 466 3300 PROJECT INFO: PROJECT SITE A ABV ABOVE AD AREA DRAIN ADA AMERICANS WITH DISABILITIES ACT ADJ ADJACENT AGG AGGREGATE ALGN ALIGNMENT ALUM ALUMINUM ANOD ANODIZED APPROX APPROXIMATE ARCH ARCHITECT, ARCHITECTURE AVG AVERAGE B BB BALLED AND BURLAPPED BC BACK OF CURB BFFE BASEMENT FINISHED FLOOR ELEVATION BLDG BUILDING BOC BOTTOM OF CURB BOP BOTTOM OF POOL BOR BOTTOM OF RAMP BOS BOTTOM OF STAIR BOT BOTTOM BOW BOTTOM OF WALL BTWN BETWEEN C CAL CALIPER CAP CAPACITY CB CATCH BASIN CHAM CHAMFER CIP CAST IN PLACE CIVIL CIVIL ENGINEER CJ CONTROL JOINT CL CENTER LINE CLR CLEAR, CLEARANCE CM CENTIMETER CMU CONCRETE MASONRY UNIT CO CLEAN OUT COL COLUMN COMP COMPOSITE, COMPACTED CONC CONCRETE COND CONDITION CONIF CONIFEROUS CONST CONSTRUCTION CONT CONTINUOUS CNTR CENTER CF CUBIC FEET CU CUBIC CY CUBIC YARDS D (D)DEEP, DEPTH DBL DOUBLE DECID DECIDUOUS DEMO DEMOLISH, DEMOLITION DET DETAIL DIA DIAMETER DIM/S DIMENSION/S DN DOWN DR DRAIN DWG/S DRAWING/S E E EAST EA EACH EJ EXPANSION JOINT EL ELEVATION ELEC ELECTRICAL EQ EQUAL EQUIP EQUIPMENT EST ESTIMATE ETR EXISTING TO REMAIN E.W.EACH WAY EXP EXPOSED EXT EXTERIOR EXTG EXISTING F FDN FOUNDATION F.F.FILTER FABRIC FFE FINISHED FLOOR ELEVATION FG FINISHED GRADE FIN FINISH FL FLOOR FOB FACE OF BRICK FOC FACE OF CONCRETE FOW FACE OF WALL FT FEET, FOOT FTG FOOTING FURN FURNISHING FUT FUTURE G GA GAUGE GALV GALVANIZED GC GENERAL CONTRACTOR GEN GENERAL, GENERATOR GEO GEO-TECHNICAL GL GLASS, GLAZING H (H)HIGH/HEIGHT HB HOSE BIB HC HANDICAP HDCP HANDICAP, HANDICAPPED HDWD HARDWOOD HDWR HARDWARE HORIZ HORIZONTAL H.P.HIGH POINT HR HANDRAIL HT HEIGHT I I.D.INSIDE DIAMETER, INSIDE DIMENSION I.E.INVERT ELEVATION IN INCH, INCHES INCL INCLUDED INSUL INSULATION INT INTERIOR INV INVERT ELEVATION J JST JOIST JT JOINT K K.O.KNOCK OUT L (L)LENGTH L.A.LANDSCAPE ARCHITECT LB POUND L.F.LINEAR FOOT LOCN LOCATION LOD LIMITS OF DISTURBANCE L.P.LOW POINT LT LIGHT M MAINT MAINTAIN, MAINTENANCE MAS MASONRY MAT MATERIAL MAX MAXIMUM MECH MECHANICAL MEMB MEMBRANE MFR MANUFACTURER MH MANHOLE MIN MINIMUM MISC MISCELLANEOUS MTL METAL N N NORTH N/A NOT APPLICABLE N.F.C.NOT FOR CONSTRUCTION N.I.C.NOT IN CONTRACT No.NUMBER NOM NOMINAL NTS NOT TO SCALE O OA OVERALL O.C.ON CENTER O.D.OUTSIDE DIAMETER, OUTSIDE DIMENSION OFD OVERFLOW DRAIN OH OVERHEAD OHW ORDINARY HIGH WATER MARK OPNG OPENING OPP OPPOSITE ORNM ORNAMENTAL P PA PLANTED AREA PAR PARALLEL PC POINT OF CURVATURE, PRECAST PERF PERFORATED PERP PERPENDICULAR PL PLATE, PROPERTY LINE PLYWD PLYWOOD PNT PAINT POB POINT OF BEGINNING POI POINT OF INTERSECTION POT POINT OF TANGENCY PSF POUNDS PER SQUARE FOOT PSI POUNDS PER SQUARE INCH PT POINT, PRESSURE TREATED PU POLYURETHANE PVC POLYVINYL CHLORIDE PVMT PAVEMENT PVR PAVER Q QTR QUARTER QTY QUANTITY R R RISER, RELOCATE (R)RISER HEIGHT RAD RADIUS RD ROOF DRAIN REBAR REINFORCING BAR RECEPT RECEPTACLE RECT RECTANGULAR REF REFERENCE REINF REINFORCED, REINFORCEMENT REM REMOVE REQD REQUIRED RET RETAINING, RETURN REV REVISION RO ROUGH OPENING ROW RIGHT OF WAY RP RADIUS POINT RT RIGHT S S SOUTH SCHED SCHEDULE SECT SECTION SD STORM DRAIN S.F.SQUARE FEET SHT SHEET SIM SIMILAR SLR SEALER SPEC SPECIFICATION SPP SPECIES SQ SQUARE SS SANITARY SEWER SST STAINLESS STEEL ST STORM SEWER STA STATION STD STANDARD STL STEEL STRUCT STRUCTURE, STRUCTURAL SURF SURFACE, SURFACING S.Y.SQUARE YARD SYM SYMMETRICAL T (T)THICK T&B TOP AND BOTTOM TBC TOP OF BACK OF CURB TBD TO BE DETERMINED THR THRESHOLD TOC TOP OF CURB, TOP OF CONCRETE TOD TOP OF DECK TOF TOP OF FOOTING TOP TOP OF PAVING TOPO TOPOGRAPHY TOR TOP OF RAMP TOS TOP OF STAIR TOW TOP OF WALL TRANS ELECTRICAL TRANSFORMER TSL TOP OF SLAB TVLS TRAVIS VAN LIERE STUDIO TYP TYPICAL U UTIL UTILITY V VAR VARIABLE, VARIES VEH VEHICLE VIF VERIFY IN FIELD VERT VERTICAL VOL VOLUME W W WEST (W)WIDE, WIDTH W/WITH W/O WITHOUT WD WOOD WL WATER LEVEL WP WATERPROOF, WORK POINT WS WATER SUPPLY WT WEIGHT WTR WATER WWF WELDED WIRE FABRIC WWM WELDED WIRE MESH Y YD YARD SYMBOLS &AND ∠ANGLE ⌒ARC LENGTH @ AT ℄CENTER LINE Ø DIAMETER °DEGREE #NUMBER, POUND /PER ±PLUS/MINUS ⅊PROPERTY LINE ℄SF X X X X LOD OHW SS ST LANDSCAPE LINE LEGENDLANDSCAPE SYMBOL LEGENDLANDSCAPE ABBREVIATIONS EXISTING SPOT ELEVATION000.00 PROPOSED SPOT ELEVATION DET SHT DET SHT TRAFFIC FLOW X EXISTING TREES TO BE REMOVED EXISTING TREES TO BE SAVED AND PROTECTED NEW DECIDUOUS TREE NEW CONIFEROUS TREE NEW SHRUB NEW PERENNIAL/ANNUAL CB RD AD AIR CONDITIONER UNIT CATCH BASIN, ROOF DRAIN, OR AREA DRAIN GAS METER WATER METER S P.E. GEN.GENERATOR HOSE BIB EXTERIOR ELECTRICAL OUTLET EXTERIOR LIGHT SWITCH AC HB WTR GAS LIGHT FIXTURES TRASH CONTAINER PLANTER POT SWING GATE SHT SHT PUP-UP EMITTER -XP -XW -XE -XS -XL -XR -XF X XXX XXX.XX LOCN POT CONTOUR ELEVATION DATUM ELEVATION TRAFFIC FLOW ARROW KEY NOTE SHEET NOTE EDGING TYPE FENCING TYPE LIGHTING TYPE PAVING TYPE REMOVAL SITE ELEMENT WALL TYPE GROUNDCOVER TYPE PLANTING REFERENCE ALGN POB 000.00 TOW X POINT OF BEGINNING POINT OF ENTRY AT BUILDING 1 REVISION CLOUD REVISION NUMBER PARALLEL ALIGNMENT QTY SPP ELEVATION CALLOUT DETAIL CALLOUT SECTION CALLOUT MATCH LINE / CONTROL LINE STRUCTURAL GRID LINE AREA OF ENLARGEMENT SYMMETRY SPRINKLER HEADS BREAK LINE PAVING HATCH LEGEND G X X DET SHT PLANT HATCH LEGEND SECTION/DETAIL HATCH LEGEND XXX PROPERTY LINE RIGHT-OF-WAY EASEMENT SETBACK CENTER LINE SILT FENCE TREE PROTECTION FENCE LIMITS OF DISTURBANCE ORDINARY HIGH WATER MARK DRAIN TILE SANITARY SEWER STORM SEWER EXISTING CONTOURS PROPOSED CONTOURS XX X 90° 180° 270° 360° SLOPE-AT-SURFACE/ DRAINAGE FLOW ARROW X.XX% STAIRDN UP ASPHALT SURFACING UNIT PAVER (RUNNING BOND) UNIT PAVER (HERRINGBONE) DRY-SET UNIT PAVER FLAGSTONE PAVING AGGREGATE SURFACING PAVING/SITE ELEMENT TO BE REMOVED GRASSPAVE POUROUS PAVER RIPRAP TURFSTONE PAVERS MORTAR-SET UNIT PAVER CONCRETE ASPHALT STONE, TYPE 1 STONE, TYPE 2 MORTAR GRANULAR FILL COMPACTED AGGREGATE METAL WOOD DIMENSIONAL LUMBER (SECTION) PLANTING SOIL EARTH (DISTURBED) EARTH (COMPACTED OR UNDISTURBED) GRASSPAVE POROUS GRASS PAVER TURFSTONE STONE, TYPE 3 NETLON ADVANCED TURF SYSTEM TURF PLANTING AREA GROUNDCOVER TYPE 1 GROUNDCOVER TYPE 2 GROUNDCOVER TYPE 3 CONCRETE SURFACING SAND SURFACING SAND SEEDING TYPE 2 SEEDING TYPE 1 FESCUE SITE AND LANDSCAPE LOTUS LAKE creation date:1/14/2022filepath:/Users/bretwieseler/Dropbox (TVLS)/PROJECTS (DROPBOX)/BRUNER RESIDENCE/2. DWG/1. DRAWINGS/VARIANCE - ENTRY GATE AND SHED/L000.dwglast saved:bretwieseler January 27, 2022 1:50 PMThe designs shown and described herein including all technical drawings, graphics and specifications thereof, are proprietary and cannot be copied, duplicated or commercially exploited, in whole or in part, without the express written permission of Travis Van Liere Studio, LLC. These are available for limited review and evaluation by clients, consultants, contractors, governement agencies, and vendors only in accordance with this notice. © Copyright 2021 Travis Van Liere Studio, LLC. All rights reserved. license no: 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 Landscape Architect under the laws of the State of Minnesota. 43728 TRAVIS VAN LIERE date:1/23/2018 6 6 0 9 H O R S E S H O E C U R V E C H A N H A S S E N , M I N N E S O T A 5 5 3 1 7 B R U N E R R E S I D E N C E Drawn By: Date: Scale: Drawing: Sheet: 09/17/2021 DJ Rev #Description Date VARIANCE APPLICATION 12/18/2020 ISSUED FOR PERMIT 4/16/2021 VARIANCE APPLICATION REVISIONS 6/4/2021 3 VARIANCE APPLICATION REVISIONS 9/17/2021 GRADING PERMIT SUBMITTAL 9/28/2021 4 PERMIT SET REVISIONS 10/01/2021 5 WEST STAIRCASE HELICAL PIERS REVISIONS 10/13/2021 6 ENTRY GATE AND SHED VARIANCE PACKAGE 01/28/2022 211 1ST STREET NORTH, SUITE 350 MINNEAPOLIS, MN 55401 t 612 345 4275 102 1 1 4 EXISTING GARAGE REFER TO ARCH 936.33 HORSESHOE CURVE 5' SIDE YARD SETBACKTRAFFIC FLOW TRAFFIC FLOW 5' SIDE YARD SETBACKNEIGHBORING STRUCTURE NEIGHBORING STRUCTURE 1 1 1 1 2 2 2 2 3 926.90 BFFEEXISTING PORCH ABOVE EXISTING HOUSE 937.08 FFE REFER TO ARCH TYP. EXISTI N G S A NI T A R Y S E W E R LI N EPROPERTY LINEPROPERTY LINE1 10' O H W S E T B A C K SS EASEMENT LOTUS LAKE OHW: 896.30 100 YEAR FLOOD LINE 30' FRONT YARD SETBACK 10' FRONT YARD SETBACK PROPERTY LINE -1R -1R -2R -2R -2R -2R -3R -4R -5R -2R -5R -5R -5R -5R -5R -6R EXISTING CONDITIONS + REMOVALS PLAN1 L010 EXISTING CONDITIONS +REMOVALS PLAN N 1" = 16' SCALE: 1 inch = 0 16'32'8' 16 feet REMOVALS KEY R1 EXISTING BITUMINOUS DRIVE TO BE REMOVED R2 EXISTING SITE WALL TO BE REMOVED R3 EXISTING PAVING TO BE REMOVED R4 EXISTING DECK TO BE REMOVED R5 EXISTING TREE TO BE REMOVED R6 PRE-EXISTING DECK REMOVED -R creation date:1/26/2022filepath:/Users/bretwieseler/Dropbox (TVLS)/PROJECTS (DROPBOX)/BRUNER RESIDENCE/2. DWG/1. DRAWINGS/VARIANCE - ENTRY GATE AND SHED/L010.dwglast saved:bretwieseler January 26, 2022 8:48 AMThe designs shown and described herein including all technical drawings, graphics and specifications thereof, are proprietary and cannot be copied, duplicated or commercially exploited, in whole or in part, without the express written permission of Travis Van Liere Studio, LLC. These are available for limited review and evaluation by clients, consultants, contractors, governement agencies, and vendors only in accordance with this notice. © Copyright 2021 Travis Van Liere Studio, LLC. All rights reserved. license no: 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 Landscape Architect under the laws of the State of Minnesota. 43728 TRAVIS VAN LIERE date:1/23/2018 6 6 0 9 H O R S E S H O E C U R V E C H A N H A S S E N , M I N N E S O T A 5 5 3 1 7 B R U N E R R E S I D E N C E Drawn By: Date: Scale: Drawing: Sheet: 09/17/2021 DJ Rev #Description Date VARIANCE APPLICATION 12/18/2020 ISSUED FOR PERMIT 4/16/2021 VARIANCE APPLICATION REVISIONS 6/4/2021 3 VARIANCE APPLICATION REVISIONS 9/17/2021 GRADING PERMIT SUBMITTAL 9/28/2021 4 PERMIT SET REVISIONS 10/01/2021 5 WEST STAIRCASE HELICAL PIERS REVISIONS 10/13/2021 6 ENTRY GATE AND SHED VARIANCE PACKAGE 01/28/2022 GENERAL NOTES 1.SEE SHEET L001 FOR GENERAL NOTES. 2.REFER TO ARCHITECTURAL DRAWINGS FOR BUILDING INFO. 3.ELECTRICAL CONTRACTOR, MECHANICAL CONTRACTOR, AND IRRIGATION CONTRACTOR TO COORDINATE W/ PAVING, CONCRETE, AND WALL CONTRACTORS ON SLEEVE LOCATIONS UNDER DRIVEWAYS, WALKS, AND WALLS.4.REFER TO SHEET L010, EXISTING CONDITIONS PLAN FOR BOUNDARY INFORMATION. ALL CONSTRUCTION STAKING MUST BE PERFORMED BY A REGISTERED LAND SURVEYOR 5.DO NOT SCALE THE DRAWINGS. WRITTEN DIMENSIONS ARE TO BE USED FOR ALL LAYOUT WORK. 6.THE CONTRACTOR SHALL IMMEDIATELY NOTIFY THE LANDSCAPE ARCHITECT OF ANY LAYOUT DISCREPANCIES. 7.ALL SITE ELEMENTS SHALL BE STAKED IN THE FIELD AND APPROVED BY LANDSCAPE ARCHITECT PRIOR TO CONSTRUCTION. 8.AUTOCAD FILE AVAILABLE TO CONTRACTOR UPON REQUEST FOR FIELD LAYOUT. KEYNOTES 1.EXISTING SIGNIFICANT TREE(S) TYP. - SAVE AND PROTECT 2.EXISTING NEIGHBORING PROPERTY/SITE FEATURE - SAVE AND PROTECT 3.EXISTING CITY STREET/ALLEY - SAVE AND PROTECT, REPAIR ANY DAMAGED AREAS PER CITY STANDARDS 4.EXISTING DOCK BY OWNER, REORIENT TO ALIGN WITH PATH, STAIRS 211 1ST STREET NORTH, SUITE 350 MINNEAPOLIS, MN 55401 t 612 345 4275 NOTES: 1. CONTRACTOR TO REMOVE ALL EXISTING BUCKTHORN AND OTHER INVASIVE MATERIALS ON SITE. BUCKTHORN TO BE CUT DOWN TO STEM. PROVIDE COST FOR SPRAYING ALL INVASIVE AREAS WITH COMMERCIAL GRADE HERBICIDE FOR A MINIMUM OF THREE TIMES DURING GROWING SEASON PRIOR TO COMMENCING WITH FINAL LANDSCAPE INSTALLATION. USE BEST MANAGEMENT PRACTICES FOR SPRAYING HERBICIDE ADJACENT TO PUBLIC WATERWAYS. 2. PROVIDE EROSION CONTROL MATTING FOR ALL DISTURBED SLOPED AREAS THAT ARE GREATER THAN 3:1. 3. INSTALL SILT FENCING WHERE ANY DIGGING OR CONSTRUCTION ACTIVITY IS TO OCCUR ADJACENT TO LAKE. 4. PROVIDE TEMPORARY SEEDING TO ALL AREAS THAT LAY EXPOSED OR BARE FOR MORE THAN 21 DAYS. 5. VERIFY ALL TREES TO BE REMOVED AND OR TRANSPLANTED ON SITE WITH LANDSCAPE ARCHITECT PRIOR TO CONSTRUCTION. NOTIFY LANDSCAPE ARCHITECT 7 DAYS PRIOR TO COMMENCING WITH WORK. 103 1 1 4DNEXISTING GARAGE REFER TO ARCH 936.33 HORSESHOE CURVE 5' SIDE YARD SETBACKTRAFFIC FLOW TRAFFIC FLOW 5' SIDE YARD SETBACKNEIGHBORING STRUCTURE NEIGHBORING STRUCTURE 1 1 1 1 2 2 2 2 3 926.90 BFFEEXISTING PORCH ABOVE EXISTING HOUSE 937.08 FFE REFER TO ARCH TYP. EXISTI N G S A NI T A R Y S E W E R LI N EPROPERTY LINEPROPERTY LINE1 10' O H W S E T B A C K SS EASEMENT LOTUS LAKE OHW: 896.30 100 YEAR FLOOD LINE 30' FRONT YARD SETBACK 10' FRONT YARD SETBACK PROPERTY LINE 1 2 3 OVERLAY DIAGRAM1 L011 OVERLAY DIAGRAM N 1" = 16' SCALE: 1 inch = 0 16'32'8' 16 feet EXISTING HARDCOVER EXISTING HOUSE 2,985 s.f. EXISTING DRIVEWAY 2,684 s.f. EXISTING PAVING 305 s.f. EXISTING WALLS 403 s.f. AREA OF PROPERTY 27,878 s.f. EXISTING HARDCOVER AREA 6,377 s.f. EXISTING HARDCOVER 23% HARDCOVER / PROPERTY AREA RATIO ALLOWED BY CODE 25% PROPOSED HARDCOVER EXISTING HOUSE 2,929 s.f. DRIVEWAY + AUTOCOURT 3,028 s.f. AGGREGATE SURFACING 210 s.f. PROPOSED MOVEABLE STORAGE SHED 132 s.f. PROPOSED PARKING PAD @ STREET 300 s.f. WALLS 15 s.f. AREA OF PROPERTY 27,878 s.f. PROPOSED HARDCOVER AREA 6,614 s.f. PROPOSED HARDCOVER PERCENTAGE 23.72% HARDCOVER / PROPERTY AREA RATIO ALLOWED BY CODE 25%creation date:1/27/2022filepath:/Users/bretwieseler/Dropbox (TVLS)/PROJECTS (DROPBOX)/BRUNER RESIDENCE/2. DWG/1. DRAWINGS/VARIANCE - ENTRY GATE AND SHED/L011.dwglast saved:bretwieseler January 27, 2022 1:50 PMThe designs shown and described herein including all technical drawings, graphics and specifications thereof, are proprietary and cannot be copied, duplicated or commercially exploited, in whole or in part, without the express written permission of Travis Van Liere Studio, LLC. These are available for limited review and evaluation by clients, consultants, contractors, governement agencies, and vendors only in accordance with this notice. © Copyright 2021 Travis Van Liere Studio, LLC. All rights reserved. license no: 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 Landscape Architect under the laws of the State of Minnesota. 43728 TRAVIS VAN LIERE date:1/23/2018 6 6 0 9 H O R S E S H O E C U R V E C H A N H A S S E N , M I N N E S O T A 5 5 3 1 7 B R U N E R R E S I D E N C E Drawn By: Date: Scale: Drawing: Sheet: 09/17/2021 DJ Rev #Description Date VARIANCE APPLICATION 12/18/2020 ISSUED FOR PERMIT 4/16/2021 VARIANCE APPLICATION REVISIONS 6/4/2021 3 VARIANCE APPLICATION REVISIONS 9/17/2021 GRADING PERMIT SUBMITTAL 9/28/2021 4 PERMIT SET REVISIONS 10/01/2021 5 WEST STAIRCASE HELICAL PIERS REVISIONS 10/13/2021 6 ENTRY GATE AND SHED VARIANCE PACKAGE 01/28/2022 GENERAL NOTES 1.SEE SHEET L001 FOR GENERAL NOTES. 2.REFER TO ARCHITECTURAL DRAWINGS FOR BUILDING INFO. 3.ELECTRICAL CONTRACTOR, MECHANICAL CONTRACTOR, AND IRRIGATION CONTRACTOR TO COORDINATE W/ PAVING, CONCRETE, AND WALL CONTRACTORS ON SLEEVE LOCATIONS UNDER DRIVEWAYS, WALKS, AND WALLS.4.REFER TO SHEET L010, EXISTING CONDITIONS PLAN FOR BOUNDARY INFORMATION. ALL CONSTRUCTION STAKING MUST BE PERFORMED BY A REGISTERED LAND SURVEYOR 5.DO NOT SCALE THE DRAWINGS. WRITTEN DIMENSIONS ARE TO BE USED FOR ALL LAYOUT WORK. 6.THE CONTRACTOR SHALL IMMEDIATELY NOTIFY THE LANDSCAPE ARCHITECT OF ANY LAYOUT DISCREPANCIES. 7.ALL SITE ELEMENTS SHALL BE STAKED IN THE FIELD AND APPROVED BY LANDSCAPE ARCHITECT PRIOR TO CONSTRUCTION. 8.AUTOCAD FILE AVAILABLE TO CONTRACTOR UPON REQUEST FOR FIELD LAYOUT. KEYNOTES 1.EXISTING SIGNIFICANT TREE(S) TYP. - SAVE AND PROTECT 2.EXISTING NEIGHBORING PROPERTY/SITE FEATURE - SAVE AND PROTECT 3.EXISTING CITY STREET/ALLEY - SAVE AND PROTECT, REPAIR ANY DAMAGED AREAS PER CITY STANDARDS 4.EXISTING DOCK BY OWNER, REORIENT TO ALIGN WITH PATH, STAIRS 211 1ST STREET NORTH, SUITE 350 MINNEAPOLIS, MN 55401 t 612 345 4275 3REV SHEET NOTES 1.PROPOSED 6'(h) ENTRY GATE 2. PROPOSED 11 'x 12' MOVEABLE STORAGE SHED 3. PROPOSED CAST-IN-PLACE CONCRETE PARKING PAD 6ADD6ADD6ADD 104 1 1 4DNEXISTING GARAGE REFER TO ARCH 936.33 HORSESHOE CURVE 5' SIDE YARD SETBACKTRAFFIC FLOW TRAFFIC FLOW 5' SIDE YARD SETBACKNEIGHBORING STRUCTURE NEIGHBORING STRUCTURE 1 1 1 1 2 2 2 2 3 926.90 BFFEEXISTING PORCH ABOVE EXISTING HOUSE 937.08 FFE REFER TO ARCH TYP. EXISTI N G S A NI T A R Y S E W E R LI N EPROPERTY LINEPROPERTY LINE1 AC WILDFLOWER GARDEN DN DN DN RISR DN3RISR DN3GAS&ELEC.GEN.HB AUTOCOURT DRIVEWAY 10' O H W S E T B A C K SS EASEMENT LOTUS LAKE OHW: 896.30 100 YEAR FLOOD LINE 30' FRONT YARD SETBACK 10' FRONT YARD SETBACK PROPERTY LINE GATE LOCATION AS ALLOWED BY CODE PROPOSED GATE LOCATION 13'3'-8"±10'-6"12'11'1'-2" 3'-9"8'-9"RISR DN 3 RISR DN 3 RISR DN 3 RISR DN 3 RISR DN 3 RISR DN 3 RISR DN 3 RISR DN 3 RISR DN 3 RISR DN 3 RISR DN 3 RISR DN 3 RISR DN 3 RISR DN1 PROPOSED LOCATION FOR MOVABLE STORAGE SHED 12 4 6 3 8 5 7 6 9 RISR DN 3 RISR DN 3 RISR DN 3 RISR DN 3 RISR DN 32L606 1L5021 L606 10 30'10'SITE PLAN1 L101 SITE PLAN 1" = 16' SCALE: 1 inch = 0 16'32'8' 16 feet N creation date:1/26/2022filepath:/Users/bretwieseler/Dropbox (TVLS)/PROJECTS (DROPBOX)/BRUNER RESIDENCE/2. DWG/1. DRAWINGS/VARIANCE - ENTRY GATE AND SHED/L101.dwglast saved:bretwieseler January 27, 2022 1:50 PMThe designs shown and described herein including all technical drawings, graphics and specifications thereof, are proprietary and cannot be copied, duplicated or commercially exploited, in whole or in part, without the express written permission of Travis Van Liere Studio, LLC. These are available for limited review and evaluation by clients, consultants, contractors, governement agencies, and vendors only in accordance with this notice. © Copyright 2021 Travis Van Liere Studio, LLC. All rights reserved. license no: 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 Landscape Architect under the laws of the State of Minnesota. 43728 TRAVIS VAN LIERE date:1/23/2018 6 6 0 9 H O R S E S H O E C U R V E C H A N H A S S E N , M I N N E S O T A 5 5 3 1 7 B R U N E R R E S I D E N C E Drawn By: Date: Scale: Drawing: Sheet: 09/17/2021 DJ Rev #Description Date VARIANCE APPLICATION 12/18/2020 ISSUED FOR PERMIT 4/16/2021 VARIANCE APPLICATION REVISIONS 6/4/2021 3 VARIANCE APPLICATION REVISIONS 9/17/2021 GRADING PERMIT SUBMITTAL 9/28/2021 4 PERMIT SET REVISIONS 10/01/2021 5 WEST STAIRCASE HELICAL PIERS REVISIONS 10/13/2021 6 ENTRY GATE AND SHED VARIANCE PACKAGE 01/28/2022 GENERAL NOTES 1.SEE SHEET L001 FOR GENERAL NOTES. 2.REFER TO ARCHITECTURAL DRAWINGS FOR BUILDING INFO. 3.ELECTRICAL CONTRACTOR, MECHANICAL CONTRACTOR, AND IRRIGATION CONTRACTOR TO COORDINATE W/ PAVING, CONCRETE, AND WALL CONTRACTORS ON SLEEVE LOCATIONS UNDER DRIVEWAYS, WALKS, AND WALLS.4.REFER TO SHEET L010, EXISTING CONDITIONS PLAN FOR BOUNDARY INFORMATION. ALL CONSTRUCTION STAKING MUST BE PERFORMED BY A REGISTERED LAND SURVEYOR 5.DO NOT SCALE THE DRAWINGS. WRITTEN DIMENSIONS ARE TO BE USED FOR ALL LAYOUT WORK. 6.THE CONTRACTOR SHALL IMMEDIATELY NOTIFY THE LANDSCAPE ARCHITECT OF ANY LAYOUT DISCREPANCIES. 7.ALL SITE ELEMENTS SHALL BE STAKED IN THE FIELD AND APPROVED BY LANDSCAPE ARCHITECT PRIOR TO CONSTRUCTION. 8.AUTOCAD FILE AVAILABLE TO CONTRACTOR UPON REQUEST FOR FIELD LAYOUT. KEYNOTES 1.EXISTING SIGNIFICANT TREE(S) TYP. - SAVE AND PROTECT 2.EXISTING NEIGHBORING PROPERTY/SITE FEATURE - SAVE AND PROTECT 3.EXISTING CITY STREET/ALLEY - SAVE AND PROTECT, REPAIR ANY DAMAGED AREAS PER CITY STANDARDS 4.EXISTING DOCK BY OWNER, REORIENT TO ALIGN WITH PATH, STAIRS 211 1ST STREET NORTH, SUITE 350 MINNEAPOLIS, MN 55401 t 612 345 4275 6ADD SHEET NOTES 1. CURB-CUT FOR EXISTING DRIVE APRON TO BE REPLACED 2. CURB CUT FOR NEW DRIVEWAY TO BE INSTALLED PER CITY STANDARDS 3.PROPOSED 6'(h) ENTRY GATE 4. PROPOSED CAST-IN-PLACE CONCRETE SURFACING 5.EXISTING CONCRETE RETAINING WALL 6.EXISTING DECK STAIRCASE 7. EXISTING DECK 8.PROPOSED 11 'x 12' MOVEABLE STORAGE SHED 9.EXISTING REMOVABLE DECK 10.PROPOSED CAST-IN-PLACE CONCRETE PARKING PAD 6ADD 6ADD 105 1 1 4DNEXISTING GARAGE REFER TO ARCH 936.33 HORSESHOE CURVE 5' SIDE YARD SETBACKTRAFFIC FLOW TRAFFIC FLOW 5' SIDE YARD SETBACKNEIGHBORING STRUCTURE NEIGHBORING STRUCTURE 1 1 1 1 2 2 2 2 3 1.50% 2.42% 926.90 BFFEEXISTING PORCH ABOVE EXISTING HOUSE 937.08 FFE REFER TO ARCH TYP. EXISTI N G S A NI T A R Y S E W E R LI N EPROPERTY LINEPROPERTY LINE1 AC WILDFLOWER GARDEN DN DN DN RISR DN3RISR DN3 953.50 M.E.954.45± M.E.GAS&ELEC.GEN.HB 7'x7'4" SPA w/ COVER AUTOCOURT DRIVEWAY 899.92 BOD 899.92 BOD 10' O H W S E T B A C K SS EASEMENT934933935936951 950 949 948 947 946 945 944 943 942 941 940 939 926 924 922 920 918 916 936 937 938 932929931915 914 913 912 911 910 909 908 907 906 905 904 903 902930934933935936932929931930928927 899 902903 900901 LOTUS LAKE OHW: 896.30 100 YEAR FLOOD LINE 30' FRONT YARD SETBACK 899.92 BOD 899.92 BOD 954.33954.75 954.29± M.E.954.53± M.E.954.13± M.E. 954 953 952 10' FRONT YARD SETBACK PROPERTY LINE 19.25%2 4 1 6 3 5 4 7 DN RISR 3 DN RISR 3 DN RISR 3 DN RISR 3 DN RISR 3 DN RISR 3 DN RISR 3 DN RISR 3 DN RISR 3 DN RISR 3 DN RISR 3 DN RISR 3 DN RISR 3 DN RISR 1 DN RISR 3 DN RISR 3 DN RISR 3 DN RISR 3 DN RISR 3 956.58± TOP OF GATE 8 GRADING + DRAINAGE PLAN1 L201 GRADING + DRAINAGE PLAN N 1" = 16' SCALE: 1 inch = 0 16'32'8' 16 feet creation date:1/25/2022filepath:/Users/bretwieseler/Dropbox (TVLS)/PROJECTS (DROPBOX)/BRUNER RESIDENCE/2. DWG/1. DRAWINGS/VARIANCE - ENTRY GATE AND SHED/L201.dwglast saved:bretwieseler January 25, 2022 12:45 PMThe designs shown and described herein including all technical drawings, graphics and specifications thereof, are proprietary and cannot be copied, duplicated or commercially exploited, in whole or in part, without the express written permission of Travis Van Liere Studio, LLC. These are available for limited review and evaluation by clients, consultants, contractors, governement agencies, and vendors only in accordance with this notice. © Copyright 2021 Travis Van Liere Studio, LLC. All rights reserved. license no: 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 Landscape Architect under the laws of the State of Minnesota. 43728 TRAVIS VAN LIERE date:1/23/2018 6 6 0 9 H O R S E S H O E C U R V E C H A N H A S S E N , M I N N E S O T A 5 5 3 1 7 B R U N E R R E S I D E N C E Drawn By: Date: Scale: Drawing: Sheet: 09/17/2021 DJ Rev #Description Date VARIANCE APPLICATION 12/18/2020 ISSUED FOR PERMIT 4/16/2021 VARIANCE APPLICATION REVISIONS 6/4/2021 3 VARIANCE APPLICATION REVISIONS 9/17/2021 GRADING PERMIT SUBMITTAL 9/28/2021 4 PERMIT SET REVISIONS 10/01/2021 5 WEST STAIRCASE HELICAL PIERS REVISIONS 10/13/2021 6 ENTRY GATE AND SHED VARIANCE PACKAGE 01/28/2022 GENERAL NOTES 1.SEE SHEET L001 FOR GENERAL NOTES. 2.REFER TO ARCHITECTURAL DRAWINGS FOR BUILDING INFO. 3.ELECTRICAL CONTRACTOR, MECHANICAL CONTRACTOR, AND IRRIGATION CONTRACTOR TO COORDINATE W/ PAVING, CONCRETE, AND WALL CONTRACTORS ON SLEEVE LOCATIONS UNDER DRIVEWAYS, WALKS, AND WALLS.4.REFER TO SHEET L010, EXISTING CONDITIONS PLAN FOR BOUNDARY INFORMATION. ALL CONSTRUCTION STAKING MUST BE PERFORMED BY A REGISTERED LAND SURVEYOR 5.DO NOT SCALE THE DRAWINGS. WRITTEN DIMENSIONS ARE TO BE USED FOR ALL LAYOUT WORK. 6.THE CONTRACTOR SHALL IMMEDIATELY NOTIFY THE LANDSCAPE ARCHITECT OF ANY LAYOUT DISCREPANCIES. 7.ALL SITE ELEMENTS SHALL BE STAKED IN THE FIELD AND APPROVED BY LANDSCAPE ARCHITECT PRIOR TO CONSTRUCTION. 8.AUTOCAD FILE AVAILABLE TO CONTRACTOR UPON REQUEST FOR FIELD LAYOUT. KEYNOTES 1.EXISTING SIGNIFICANT TREE(S) TYP. - SAVE AND PROTECT 2.EXISTING NEIGHBORING PROPERTY/SITE FEATURE - SAVE AND PROTECT 3.EXISTING CITY STREET/ALLEY - SAVE AND PROTECT, REPAIR ANY DAMAGED AREAS PER CITY STANDARDS 4.EXISTING DOCK BY OWNER, REORIENT TO ALIGN WITH PATH, STAIRS 211 1ST STREET NORTH, SUITE 350 MINNEAPOLIS, MN 55401 t 612 345 4275 STANDARD EROSION CONTROL NOTES FOR RPBCWD DEVELOPMENT REVIEWS C1. THE EROSION CONTROL PLAN MUST INCLUDE THE FOLLOWING NOTES: A. NATURAL TOPOGRAPHY AND SOIL CONDITIONS MUST BE PROTECTED, INCLUDING RETENTION ONSITE OF NATIVE TOPSOIL TO THE GREATEST EXTEND POSSIBLE. B. ADDITIONAL MEASURES, SUCH AS HYDRAULIC MULCHING AND OTHER PRACTICES AS SPECIFIED BY THE DISTRICT MUST BE USED ON SLOPES OF 3:1 (H:V) OR STEEPER TO PROVIDE ADEQUATE STABILIZATION. C. FINAL SITE STABILIZATION MEASURES MUST SPECIFY THAT AT LEAST SIX INCHES OF TOPSOIL OR ORGANIC MATTER BE SPREAD AND INCORPORATED INTO THE UNDERLYING SOIL DURING FINAL SITE TREATMENT WHEREVER TOPSOIL HAS BEEN REMOVED. D. CONSTRUCTION SITE WASTE SUCH AS DISCARDED BUILDING MATERIALS, CONCRETE TRUCK WASHOUT, CHEMICALS, LITTER, AND SANITARY WASTE MUST BE PROPERLY MANAGED. E. ALL TEMPORARY EROSION AND SEDIMENT CONTROL BMPS MUST BE MAINTAINED UNTIL COMPLETION OF CONSTRUCTION AND VEGETATION IS ESTABLISHED SUFFICIENTLY TO ENSURE STABILITY OF THE SITE, AS DETERMINED BY THE DISTRICT. F. ALL TEMPORARY EROSION AND SEDIMENT CONTROL BMPS MUST BE REMOVED UPON FINAL STABILIZATION. G. SOIL SURFACES COMPACTED DURING CONSTRUCTION AND REMAINING PERVIOUS UPON COMPLETION OF CONSTRUCTION MUST BE DECOMPACTED TO ACHIEVE A SOIL COMPACTION TESTING PRESSURE OF LESS THAN 1,400 KILOPASCALS OR 200 POUNDS PER SQUARE INCH IN THE UPPER 12 INCHES OF THE SOIL PROFILE WHILE TAKING CARE TO PROTECT UTILITIES, TREE ROOTS, AND OTHER EXISTING VEGETATION. H. ALL DISTURBED AREAS MUST BE STABILIZED WITHIN 7 CALENDAR DAYS AFTER LAND-DISTURBING WORK HAS TEMPORARILY OR PERMANENTLY CEASED ON A PROPERTY THAT DRAINS TO AN IMPAIRED WATER, WITHIN 14 DAYS ELSEWHERE. I. THE PERMITTEE, MUST, AT A MINIMUM, INSPECT, MAINTAIN, AND REPAIR ALL DISTURBED SURFACES AND ALL EROSION AND SEDIMENT CONTROL FACILITIES AND SOIL STABILIZATION MEASURES EVERY DAY WORK IS PERFORMED ON THE SITE AND AT LEAST WEEKLY UNTIL LAND-DISTURBING ACTIVITY HAS CEASED. THEREAFTER, THE PERMITTEE MUST PERFORM THESE RESPONSIBILITIES AT LEAST WEEKLY UNTIL VEGETATIVE COVER IS ESTABLISHED. THE PERMITTEE WILL MAINTAIN A LOG OF ACTIVITIES UNDER THIS SECTION FOR INSPECTION BY THE DISTRICT ON REQUEST. AIS NOTE FOR RPBCWD DEVELOPMENT REVIEWS (RULES B, D, E, F, G) ACTIVITIES MUST BE CONDUCTED SO AS TO MINIMIZE THE POTENTIAL TRANSFER OF AQUATIC INVASIVE SPECIES (E.G.) ZEBRA MUSSELS, EURASIAN WATERMILFOIL, ETC.) TO THE MAXIMUM EXTENT POSSIBLE. NOTE: SEE L401 LANDSCAPE PLAN FOR RESTORATION NOTES 6ADD6ADD SHEET NOTES 1.PROPOSED 6'(h) ENTRY GATE 2. PROPOSED CAST-IN-PLACE CONCRETE SURFACING 3. EXISTING CONCRETE RETAINING WALL 4. EXISTING DECK STAIRCASE 5. EXISTING DECK 6. PROPOSED 11 'x 12' MOVEABLE STORAGE SHED 7. EXISTING REMOVABLE DECK 8. PROPOSED CAST-IN-PLACE CONCRETE PARKING PAD 6ADD 106 L502 ENTRY GATE - SECTIONDIAGRAM 1" = 16'creation date:1/15/2022filepath:/Users/bretwieseler/Dropbox (TVLS)/PROJECTS (DROPBOX)/BRUNER RESIDENCE/2. DWG/1. DRAWINGS/VARIANCE - ENTRY GATE AND SHED/L502.dwglast saved:bretwieseler January 15, 2022 4:02 PMThe designs shown and described herein including all technical drawings, graphics and specifications thereof, are proprietary and cannot be copied, duplicated or commercially exploited, in whole or in part, without the express written permission of Travis Van Liere Studio, LLC. These are available for limited review and evaluation by clients, consultants, contractors, governement agencies, and vendors only in accordance with this notice. © Copyright 2021 Travis Van Liere Studio, LLC. All rights reserved. license no: 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 Landscape Architect under the laws of the State of Minnesota. 43728 TRAVIS VAN LIERE date:1/23/2018 6 6 0 9 H O R S E S H O E C U R V E C H A N H A S S E N , M I N N E S O T A 5 5 3 1 7 B R U N E R R E S I D E N C E Drawn By: Date: Scale: Drawing: Sheet: 09/17/2021 DJ Rev #Description Date VARIANCE APPLICATION 12/18/2020 ISSUED FOR PERMIT 4/16/2021 VARIANCE APPLICATION REVISIONS 6/4/2021 3 VARIANCE APPLICATION REVISIONS 9/17/2021 GRADING PERMIT SUBMITTAL 9/28/2021 4 PERMIT SET REVISIONS 10/01/2021 5 WEST STAIRCASE HELICAL PIERS REVISIONS 10/13/2021 6 ENTRY GATE AND SHED VARIANCE PACKAGE 01/28/2022 211 1ST STREET NORTH, SUITE 350 MINNEAPOLIS, MN 55401 t 612 345 4275 SCALE: 3/16" = 1'-0" ENTRY GATE - SECTION DIAGRAM1 6ADD 19.25% SLOPE EDGE OF STREET10' SETBACK30' SETBACK3'-8"± 13'-8"± 33'-8"±PROPERTY LINE6'4'-4"±GATE POST, TYPICAL GATE SWING, TYPICAL LINE OF SIGHT GATE LOCATION AS ALLOWED BY CODE15'± 35'± PROPOSED GATE LOCATION 107 L606 ENTRY GATE DETAILS 1" = 16' SCALE: 1/4" = 1'-0" ENTRY GATE - ELEVATION1 creation date:1/15/2022filepath:/Users/bretwieseler/Dropbox (TVLS)/PROJECTS (DROPBOX)/BRUNER RESIDENCE/2. DWG/1. DRAWINGS/VARIANCE - ENTRY GATE AND SHED/L606.dwglast saved:bretwieseler January 17, 2022 9:16 AMThe designs shown and described herein including all technical drawings, graphics and specifications thereof, are proprietary and cannot be copied, duplicated or commercially exploited, in whole or in part, without the express written permission of Travis Van Liere Studio, LLC. These are available for limited review and evaluation by clients, consultants, contractors, governement agencies, and vendors only in accordance with this notice. © Copyright 2021 Travis Van Liere Studio, LLC. All rights reserved. license no: 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 Landscape Architect under the laws of the State of Minnesota. 43728 TRAVIS VAN LIERE date:1/23/2018 6 6 0 9 H O R S E S H O E C U R V E C H A N H A S S E N , M I N N E S O T A 5 5 3 1 7 B R U N E R R E S I D E N C E Drawn By: Date: Scale: Drawing: Sheet: 09/17/2021 DJ Rev #Description Date VARIANCE APPLICATION 12/18/2020 ISSUED FOR PERMIT 4/16/2021 VARIANCE APPLICATION REVISIONS 6/4/2021 3 VARIANCE APPLICATION REVISIONS 9/17/2021 GRADING PERMIT SUBMITTAL 9/28/2021 4 PERMIT SET REVISIONS 10/01/2021 5 WEST STAIRCASE HELICAL PIERS REVISIONS 10/13/2021 211 1ST STREET NORTH, SUITE 350 MINNEAPOLIS, MN 55401 t 612 345 4275 6ADD 949.42± TOF 950.00± TOF 956.58 TOP 6'6" SQ., TYP. 2", TYP. 19' O.C. 9'-03 4", TYP.VARIES4"MIN.6"±EQ.EQ. 13' DRIVEWAY WIDTH - V.I.F. EQ. O.C.EQ. O.C. ℄ ℄ 24"Ø C.I.P. CONC. BELL FOOTING TO FROST, TYP. - REINF. AS SPECIFIED BY STRUCT. ENGINEER. 6"x6" ALUMINUM SQUARE TUBE POST. W/ WELDED CAP, TYP. - EMBED INTO CONC. FOOTING 48" MIN. GATE HARDWARE, TYP. 1 /12" SQ. ALUMINUM TUBE FRAME BEYOND, TYP. 21 2"x 3 16" ALUMINUM EDGE CAP - CONT. WRAP FRAME TO CONCEAL ENDS OF ALUMINUM TUBE PICKETS SURFACING AS SPECIFIED - SEE PLANS (34) 1 2"x11 2" ALUMINUM SQARE TUBE @ 2" O.C., TYP. - BOTH SIDES OF GATE58" GAPTYP.LINEAR ARM GATE OPERATOR, TYP.48" MIN.949.75± 950.33±TO FROST2L606112"6'112"TYP.58"GAPTYP.11 2" 6"VARIES1'O.C.VARIES -4" MIN.4" MIN. COVERAGE24"Ø C.I.P. CONC. BELL FOOTING TO FROST, TYP. - REINF. AS SPECIFIED BY STRUCT. ENGINEER. 6"x6" ALUMINUM SQUARE TUBE POST. W/ WELDED CAP, TYP. - EMBED INTO CONC. FOOTING 48" MIN. 1 /12" SQ. ALUMINUM TUBE FRAME, TYP. 21 2"x 3 16" ALUMINUM EDGE CAP - CONT. WRAP FRAME TO CONCEAL ENDS OF ALUMINUM TUBE PICKETS SURFACING AS SPECIFIED - SEE PLANS (34) 1 2"x11 2" ALUMINUM SQARE TUBE @ 2" O.C., TYP. - BOTH SIDES OF GATE LINEAR ARM GATE OPERATOR, TYP. COMPACTED OR UNDISTURBED SUBGRADE AS RECOMMENDED BY GEOTECHNICAL ENGINEERT O FROST48" MIN.21 2"1L606SCALE: 1/4" = 1'-0" ENTRY GATE - SECTION2 OBSTRUCTION LOOP CENTER LOOP EXIT LOOP 4'4'6'6'4'6' REMOTE POWER UNIT AND CONTROLS, PLACE IN PROPOSED MECHANICAL AREA - FIELD VERIFY FINAL LOCATION PRIMARY POWER, VERIFY REQUIREMENTS PER MANUFACTURER'S RECOMMENDATIONS 3 4" CONDUITS, EACH A HOME RUN (1) 3" PVC (1) 2" PVC (1) 1" PVC BYAN 900 GATE OPERATOR, TYP. 18" SONOTUBE BELL FOOTING, TYP.2'-1038"TYP.9'-2" TYP.1 2" PVC FOR ALL PHOTOEYES 13'2'O.C.7' O.C. ELS25 ON PEDESTAL- VERIFY ACCESS REQUIREMENTS W/ OWNERS PROPERTY LINE 10' FRONT YARD SETBACK ALIGN POST W/ 10' SETBACK 4' 10'- 6"1L6062 L606 SCALE: 1/4" = 1'-0" ENTRY GATE - PLAN3 108 ROOT ZONE ROOT PRUNING LIMITS PRUNING CUT, TYP., PER ARBORIST RECOMMENDATIONS BASE OF TREE GROUND PLANE PLAN VIEW MAXIMUM 25" ON ONE SIDE OR 33% OF TOTAL ROOT SYSTEM NO MORE THAN HALF THE CROWN OF THE TREE AT END OF SLOPE SECURE BLANKET MATERIAL BY INSERTINGSTAPLES ABOUT 20" APART THROUGH THE FABRIC EXTEND MATERIAL ABOUT 40" ON TOP OF THE GROUND AND RANDOMLY INSERT STAPLES THROUGH THE MATERIAL ABOUT 20" APART NOTES: 1. EROSION CONTROL BLANKET TO BE CATEGORY 4-COCONUT 2S FOR SLOPES GREATER THAN 5:1 AND SIDES AND BOTTOM OF ALL DRAINAGE SWALES AND PONDING AREAS AND CATEGORY 2-STRAW 2S FOR ALL SLOPES LESS THAN 5:1 PER MNDOT SPEC. SECTION 3885. 2. INSTALL PER MNDOT SPEC. SECTION 2575 LONGITUDINAL SEAMS: BLANKET MATERIAL MUST OVERLAP AT LEAST 6" AND STAPLES INSERTED THROUGH BOTH FABRICS AT A MAXIMUM SPACING OF 40" APART TRANSVERSE SEAMS: BLANKET MATERIAL MUST OVERLAP AT LEAST 6" AND STAPLES INSERTED THROUGH BOTH FABRICS AT A MAXIMUM SPACING OF 20" APART STAPLES AT 3' O.C. STAPLES MUST BE INSERTED THROUGH OVERLAP MATERIAL SLOPE LENGTH LESS THAN 50 ' 1. BEFORE INSTALLATION APPLY TOPSOIL, FERTILIZER AND SEED TO SURFACE. 2. BEGIN AT THE TOP OF THE CHANNEL, INSTALL MATS BY ANCHORING IN A 6" DEEP BY 6" WIDE TRENCH WITH APPROXIMATELY 12" OF MAT EXTENDED BEYOND THE UP-SLOPE PORTION OF THE TRENCH. ANCHOR WITH A ROW OF STAPLES APPROXIMATELY 12" APART IN THE BOTTOM OF THE TRENCH. BACKFILL AND COMPACT THE TRENCH AFTER STAPLING. APPLY SEED TO COMPACTED SOIL AND FOLD REMAINING 12" PORTION OF MAT BACK OVER SEED AND SOIL. SECURE MATS WITH A WITH A ROW OF STAPLES SPACED APPROXIMATELY 12" APART ACROSS THE WIDTH OF THE MATS. 3. ROLL CENTER MATS IN DIRECTION OF WATER FLOW IN BOTTOM OF CHANNEL. 4. PLACE CONSECUTIVE AND ADJACENT MATS END OVER END (SHINGLE STYLE) WITH A MINIMUM 6" OVERLAP. USE A DOUBLE ROW OF STAPLES STAGGERED 4" APART AND 4" ON CENTER TO SECURE OVERLAPPED MATS. 5. FULL LENGTH EDGE OF MATS AT TOP OF SIDE SLOPES MUST BE ANCHORED WITH A ROW OF STAPLES APPROXIMATELY 12" APART IN A 6" DEEP BY 6" WIDE TRENCH. 6. THE TERMINAL END OF MATS MUST BE ANCHORED WITH A ROW OF STAPLES APPROXIMATELY 12" APART IN A 6" DEEP BY 6" WIDE TRENCH. 7. BACKFILL AND SEED AFTER STAPLING. 8. FOLLOW MANUFACTURER'S RECOMMENDATIONS FOR PROPER INSTALLATION. FABRIC ANCHORAGE TRENCH BACKFILL WITH TAMPED NATURAL SOIL WIRE MESH REINFORCEMENT, ATTACH FABRIC TO WIRE MESH WITH HOG RINGS, PER MNDOT SPEC. SECTION 3886 B1. SILT FENCE FABRIC DIRECTION OF RUNOFF FLOW METAL (OR WOOD) POST OR STAKE NATURAL SOIL 1. SILT FENCES SHOULD BE INSTALLED ON THE CONTOUR (AS OPPOSED TO UP AND DOWN A HILL) AND CONSTRUCTED SO THAT FLOW CANNOT BYPASS THE ENDS. 2. ENSURE THAT THE DRAINAGE AREA IS NO GREATER THAN 1/4 ACRE PER 100 FT OF FENCE. 3. MAKE THE FENCE STABLE FOR THE 10-YEAR PEAK STORM RUNOFF. 4. WHERE ALL RUNOFF IS TO BE STORED BEHIND THE SILT FENCE, ENSURE THAT THE MAXIMUM SLOPE LENGTH BEHIND THE FENCE DOES NOT EXCEED THE SPECIFICATIONS SHOWN IN TABLENOTE: SILT FENCE SHALL FOLLOW MNDOT SPEC. SECTION 3886. DESIGN RECOMMENDATIONS FIGURE 1: TYPICAL INSTALLATION FOR SILT FENCE 6" MIN 6"MINPLAN VIEW NOTES: 1. ALL TREE PROTECTION FENCING AND EROSION CONTROL FENCING SHALL BE INSTALLED ACCORDING TO THE PLANS PRIOR TO ANY DEMOLITION. AFTER DEMOLITION OR AS NECESSARY, TREE PROTECTION FENCING MAY BE RELOCATED WITH APPROVAL FROM THE LANDSCAPE ARCHITECT. ALL TREE PROTECTION FENCING AND EROSION CONTROL DEVICES SHALL BE MAINTAINED FOR THE DURATION OF THE CONSTRUCTION PERIOD. 2. TREE PROTECTION FENCING SHALL CONSIST OF TEMPORARY METAL WIRE CHAIN LINK MESH FENCING OR APPROVED EQUAL. 3. CONTRACTOR SHALL NOT STORE ANY MATERIALS OR PARK ANY VEHICLES IN TREE PROTECTION ZONES. THE FENCE SHALL PREVENT TRAFFIC MOVEMENT AND THE PLACEMENT OF TEMPORARY FACILITIES, EQUIPMENT, STOCKPILES AND SUPPLIES FROM HARMING VEGETATION WITHIN THE LIMITS OF PROTECTION. 4. THE CONTRACTOR SHALL CLEANLY CUT ALL ROOTS EXPOSED BY GRADING AS DIRECTED BY THE LANDSCAPE ARCHITECT. 5. THE CONTRACTOR SHALL USE DESIGNATED CONSTRUCTION ENTRANCES AND STAGING AREAS. 6' MAX 6' MAX. POST SPACING 3' MINIMUM 6' IDEAL FROM DRIPLINE DRIPLINE 2/3 OFLOGDRIPLINE INSTALL SHREDDED HARDWOOD MULCH (MNDOT TYPE 6). EQUIVALENT MATERIAL MAY BE SUBSTITUTED AT THE DISCRETION OF THE ENGINEER. STAKE DRIVEN THROUGH LOG MESH COIR LOG 6"-7" MINIMUM DIAMETER SOIL WEDGE OR 2"X2" STAKE PRE-DRILLED HOLES 0.5"X0.5" OPENING IN NET 1/3 OFLOG10' MIN LENGTH 2" WASHED COURSE AGGREGATE, 12" THICK, OVER GEOFABRIC 50' M I N 20' MI N EDG E O F P U B LI C R O A D O R P A V E M E N T TABLE 1: MAXIMUM SLOPE LENGTH AND SLOPE FOR WHICH SILT FENCE IS APPLICABLE BY CALCULATION BY CALCULATION BY ACCEPTED DESIGN PRACTICES SLOPE (H:V)%SILT FENCE STORAGE EQUALS 2 FT FOR A 100-YEAR EVENT SILT FENCE STORAGE EQUALS 2 FT FOR A 2-YEAR EVENT OR 3 FT FOR A 100-YEAR EVENT MAXIMUM SLOPE LENGTH 100:1 1%400 FT 900 FT 100 FT 50:1 2%200 FT 450 FT 75 FT 25:1 4%100 FT 225 FT 75 FT 20:1 5%80 FT 180 FT 75-50 17:1 6%67 FT 150 FT 50 FT 12.5:1 8%50 FT 112 FT 50 FT 10:1 10%40 FT 90 FT 50-25 FT 5:1 20%20 FT 45 FT 25-15 FT 4:1 25%16 FT 36 FT 15 FT 3:1 33%12 FT 27 FT 15 FT 2:1 50%8 FT 18 FT 15 FT L609 EROSION CONTROL DETAILS 1" = 16'creation date:9/28/2021filepath:/Users/bretwieseler/Dropbox (TVLS)/PROJECTS (DROPBOX)/BRUNER RESIDENCE/2. DWG/1. DRAWINGS/VARIANCE - ENTRY GATE AND SHED/L609.dwglast saved:bretwieseler September 28, 2021 1:07 PMThe designs shown and described herein including all technical drawings, graphics and specifications thereof, are proprietary and cannot be copied, duplicated or commercially exploited, in whole or in part, without the express written permission of Travis Van Liere Studio, LLC. These are available for limited review and evaluation by clients, consultants, contractors, governement agencies, and vendors only in accordance with this notice. © Copyright 2021 Travis Van Liere Studio, LLC. All rights reserved. license no: 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 Landscape Architect under the laws of the State of Minnesota. 43728 TRAVIS VAN LIERE date:1/23/2018 6 6 0 9 H O R S E S H O E C U R V E C H A N H A S S E N , M I N N E S O T A 5 5 3 1 7 B R U N E R R E S I D E N C E Drawn By: Date: Scale: Drawing: Sheet: 09/17/2021 DJ Rev #Description Date VARIANCE APPLICATION 12/18/2020 ISSUED FOR PERMIT 4/16/2021 VARIANCE APPLICATION REVISIONS 6/4/2021 3 VARIANCE APPLICATION REVISIONS 9/17/2021 GRADING PERMIT SUBMITTAL 9/28/2021 4 PERMIT SET REVISIONS 10/01/2021 5 WEST STAIRCASE HELICAL PIERS REVISIONS 10/13/2021 6 ENTRY GATE AND SHED VARIANCE PACKAGE 01/28/2022 211 1ST STREET NORTH, SUITE 350 MINNEAPOLIS, MN 55401 t 612 345 4275 SCALE: N/A TREE PROTECTION FENCING INSTALLATION5 SCALE: N/A BIOLOG INSTALLATION6 SCALE: N/A SILT FENCE INSTALLATION1 SCALE: N/A EROSION CONTROL BLANKET INSTALLATION2 SCALE: N/A EROSION CONTROL MAT INSTALLATION3 SCALE: N/A GRAVEL CONSTRUCTION ENTRANCE DETAIL4 SCALE: N/A ROOT PRUNING DETAIL7 109 COMMUNITY DEVELOPMENT DEPARTMENT Planning Division - 7700 Market Boulevard Mailing Address - P.O. Box 147, Chanhassen, MN 55317 Phone: (952) 227-1100 lFax: (952\ 227-1110 APPLICATION FOR DEVELOPMENT REVIEW Submittal Oate: O \?Pcoare:lol tqlot "" o",", ll l? []t CITY OT CIIAI'IIIASSII'I 2-l It 60-Day Review Date I t, Section 1: Application Type (check all that apply) (Refer to the appropiate Application Checklist for required submitlal infomation lhat must accompany lhis application) E Comprehensive Plan Amendment......................... $600 E Minor MUSA line for failing on-site sewers ..... $100 E Conditional Use Permit (CUP) ! Single-Family Residence ................................ $325 n Al ottrers...... ....................... $425 ( lots) ! Metes & Bounds (2 lots).................................. $300 fl Consolidate 1ots.............................................. $1 50 E Lot Line Adjustment......................................... $150 E Final Plat-..................... ........ $700 (lncludes $450 escrow for attorney costs)* 'Additional escrow may be required for other applications lhrough the develoEnent contract. Vacation of Easements/Right-of-way (VAC)........ $300 (Additional recording tees may apply) $150 $275 lnterim Use Permit (lUP) E ln conjunction with Single-Family Residence n Att others...... Rezoning (REZ) E Planned Unit Development (PUD)................ f] Minor Amendment lo existing PUD............... . $32s . $425 . $750 . $100 E Subdivision (suB) E Create 3 lots or less E Create over 3 lots.... tr ........................ $300 ...$600 + $15 per lot E At otners... ! Sign Plan Review... ................... $500 E Site Plan Review (SPR) E Administrative ..................... $100 E Commercial/lndustrial Districts*...................... $500 Plus $10 per 1,000 square feet of building area:( thousand square feet) 'lnclude number of elg2g employees: 'lnclude number of !98 employees: E Residential Districts........-..........-..................... $500 Plus $5 per dwelling unit ( units) [f Notiflcation Sign (city to install and remove) ............. EI Property Owners' List within 500' lcity lo generate after pre-application meeting) Ef Variance (VAR).$200 ' S150 ! wettand Atteration Permit (wAP) E Single-Family Residencen Alt others...... E zoninq Appea|................. ......... $100 E Zoning Ordinance Amendment (ZOA)................. $500 !!EE: When multlple applications are processed concunen{y, the appropriate tee shall be charged for each applicatlon. . $200 ... $3 per address L_ addresses) ....................... $50 per document E Site Plan Agreement fl Wetland Alteration Permit Bt'ri"flit' -Frso 'e E Escrow for Recording Documents (check allthat apply).................... E Conditional Use Permit ! lnterim Use Permit E Vacation ! Variance E Metes & Bounds Subdivision (3 docs.) E Easements L- easements) Section 2: Required lnformation Description of Proposal 66o7 Hwse-sHo e- Cttr't o C,fu,+t ha-s*cez, Tn /y -95317Property Address or Location: Parcel #: 2SoSgOO lO .b1 Legal Description Rcs t /aa17 p1 Wetlands Present?!ves !ruo Requested Zoning Select OnePresent Zoning:Select One RSF Present Land Use Designation Select One Requested Land Use Designation sele^q\Qnft CH ANHvrr RECEIvEDftcstdt,t dcnecx box if separate narrative is aftached SEPJl 2O CHANHASSEN Total Acreage: Existing Use of Property: 110 Section 3: Property Owner and Applicant lnformation APPLICANT OTHER THAN PROPERW OWNER: ln signing this application, l, as applicant, represent to have obtained authorization from the property owner to file this application. I agree to be bound by conditions of approval, subject only to the right to object at the hearings on the application or during the appeal period. lf this application has not been signed by the property owner, I have attached separate documentation of full legal capacity to file the application. 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 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. I certify that the information and exhibits submitted are true and correct. Name Contact Phone:Address Cily/State/Zip: Email: Signature: Cell: Fax: Date PROPERTY OWNER: ln signing this application, l, as property owner, have full legal capacity to, and hereby do, authorize the filing of this application. I understand that conditions of approval are binding and agree to be bound by those conditions, subject only to the right to object at the hearings or during the appeal periods. 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. I certify that the information and exhibits submitted are true and correct. Name: F/tse Bruncr $r, ntt $ru rte/Contact Address eS )10 e Cttl t e-Phonet 1-tz-'7q-7 -zG lq ce,l: 6/7 - Zo-9 - 9/1q Emat ebr/r1./n r0 (.ty?lbr,tner b ("p c- l,*'tg'/o-'ap. C c,44 Signature Date: Oq- n-20)l PROJECT ENGINEER (if applicable) Name: City/State/Zip {93t 7 Address: Contact: Phone: City/State/Zip Email: Cell: Fax: This application must be completed in full and must be accompanied by all information and plans required by applicable City Ordinance provisions. Before filing th,s application, refer to the appropriate Application Checklist and confer with the Planning Department to determine the specific ordinance and applicable procedural requirements and fees. A determination of completeness of the application shall be made within 15 business days of application submiftal. A written notice of application deficiencies shall be mailed to the applicant within 15 business days of application. Section 4: Notification lnformation Who should receive copies qf staff reports?*Other Contact lnformation : Name: -fP.*\A-l {ft}.) EEILt City/State/Zip:Mew4 MN .r(:zlat I E Property Owner Via: EfEmailE Applicant Via: E Email ! Engineer Via: E Email E othef via: E Email [frr,laiteo Paper copy ElMailed Paper copy E uaiteo Paper Copy ! Maiteo Paper Copy Address: --2-\ \ N [!1 .JF <<b Email INSTRUCTIONS TO APPLICANT: Com plete all necessary form fields, then select SAVE FORM to save a copy to your device. PRINT FORM and deliver to city along with required documents and payment. SUBMIT FORM to send a digital SAVE FORM PRINT FORM SUBMIT FORM I d'i @ to r- l,/nrtaLA-< r.*,, copy to the city for processing. 111 bruner residence - 6609 horseshoe curve, chanhassen, mn January 18, 2022 ENTRY GATE - 3D IMaGEry 112 bruner residence - 6609 horseshoe curve, chanhassen, mn January 18, 2022 ENTRY GATE - 3D IMaGEry 113 bruner residence - 6609 horseshoe curve, chanhassen, mn January 18, 2022 ENTRY GATE - 3D IMaGEry 114 bruner residence - 6609 horseshoe curve, chanhassen, mn January 18, 2022 ENTRY GATE - 3D IMaGEry 115 bruner residence - 6609 horseshoe curve, chanhassen, mn January 18, 2022 ENTRY GATE - 3D IMaGEry 116 PREEXISTING PARKING PAD, IMAGE 1 117 PREEXISTING PARKING PAD, IMAGE 2 118 Memorandum To: MacKenzie Young-Walters, Associate Planner From: Erik Henricksen, Project Engineer CC: Charles Howley, Public Works Director/City Engineer George Bender, Assistant City Engineer Brett Martinson, Water and Sewer Maintenance Foreman Joe Seidl, Water Resources Engineer Ryan Pinkalla, Water Resources Technician Steve Lenz, Engineering Technician Date: February 17, 2022 Re: Fence, Parking Pad and Shed Variance at 6609 Horseshoe Curve – Planning Case #2021-07B The Engineering Department has reviewed the Variance submittal for 6609 Horseshoe Curve. These comments are divided into two categories: general comments and proposed conditions. General comments are informational points to guide the applicant in the proper planning of public works infrastructure for this project, to inform the applicant of possible extraordinary issues and/or to provide the basis for findings. Proposed conditions are requirements that Engineering recommends be formally imposed on the applicant in the final order. Note that references to the “City Standards” herein refer to the City of Chanhassen Standard Specifications and Detail Plates. General Comments/Findings 1. Any and all grading, utility and transportation plans submitted with this application have been reviewed only for the purpose of determining the feasibility of the plans and providing utility and transportation facilities for the project in accordance with City Standards. A recommendation of variance approval does not constitute final approval of details, including but not limited to alignments, materials and points of access, connection or discharge, that are depicted or suggested in the application. The 119 applicant is required to submit detailed construction drawings and/or plat drawings for the project, as applicable. The City of Chanhassen Engineering and Public Works Department will review plans, in detail, when they are submitted and approve, reject or require modifications to the plans or drawings based upon conformance with City Standards, the Chanhassen Code of Ordinances and the professional engineering judgment of the City Engineer. 2. It is the opinion of the Engineering Department that the proposed variance requests cannot be developed in accordance with the requirements of the Chanhassen Code of Ordinances (as it pertains to Engineering and Public Works requirements) and City Standards. 3. The applicant previously proposed the reconfiguration and realignment of an existing Water Oriented Structure (WOAS) which was approved in 2021. The existing WOAS consisted of stone pavers and wood decking which was removed and replaced with modular wood decking along with a smaller footprint than the previous non-conforming WOAS. The WOAS lies within a public drainage and utility easement (DUE) that was recorded with the Alicia Heights plat in 1999. Addit ionally, the city owns and maintains a public sanitary sewer main constructed in 1975 that is located within the DUE and located directly under the existing and previously approved WOAS. As such, the applicant was required to enter into an encroachment agreement for the approved WOAS, and the WOAS was constructed so that the decking was removable to allow for access to and for the proper maintenance of the public sanitary sewer main located directly underneath. The applicant is now proposing the addition of a shed to be attached to the modular wood deck. The addition of the shed to the modular wood deck increases the WOAS square footage over the original non-conformity, and a shed is considered a more substantial structure than modular decking. Structures such as sheds located within DUEs and located directly over public utilities such as sanitary sewer mains would be an encumbrance that would alter the intended use of the easement and inhibit the proper repair and maintenance of the public utility. As such, the Engineering Department recommends denial of the second WOAS variance request to add a shed to the previously approved modular wood deck. 4. The applicant is proposing a variance for a secondary access, or “parking pad”, abutting Horseshoe Curve. The submittal materials provided by the applicant identify the area of the proposed parking pad as a “pre-existing” parking pad, however the area identified is the pre-existing driveway access that was proposed to be removed with the previous variance submittals along with the removal plans of Grading Permit #21-05 issued on October 1, 2021. Leaving the pre-existing driveway access while also installing a new driveway access is the same as having two accesses to a residential property which is only permitted when the secondary access services a utility facility. Additionally, secondary driveway accesses are ideally maintained as natural grass to limit the amount 120 of impervious surface in those instances – the parking pad being proposed would be constructed of concrete. Access management along public right-of-way is maintained to one access per residential property in order to provide for safe and efficient street networks. Allowing for parking pads directly abutting a city street increases the risk of accidents, such as vehicles colliding with obstructions (parked vehicles) directly abutting the street. Horseshoe Curve is a narrow public road with sharp curves and poor site lines and adding additional obstructions directly abutting the road could intensify the risk of accidents. Also, having parked vehicles directly abutting the street along such a narrow corridor can create maintenance issues during snow emergencies. Lastly, if parking pads were permitted abutting public streets for residential properties, there are also concerns with aesthetics of roadway corridors and neighborhoods which can degrade livability for the community. As such, the Engineering Department recommends denial of the secondary access, or “parking pad”, variance request. 5. The applicant is proposing a variance for the construction of a 6.5 foot high opaque privacy fence located in the front yard. If the variance is approved the applicant will be required to enter into an Encroachment Agreement if the fence is erected within a public drainage and utility easement. See proposed condition 1 . Proposed Conditions 1. The applicant shall file for an encroachment agreement with the city for any encroachments within public drainage and utility easements. 121 Memorandum To:MacKenzie Young-Walters, Associate Planner From:Joe Seidl, Water Resources Engineer CC: Charles Howley, Public Works Director/City Engineer George Bender, Assistant City Engineer Erik Henricksen, Project Engineer Ryan Pinkalla, Water Resources Technician Steve Lenz, Engineering Technician Date:February 17, 2022 Re:Fence, Parking Pad and Shed Variance at 6609 Horseshoe Curve – Planning Case #2021-07B The Water Resources Department has reviewed the Variance submittal for 6609 Horseshoe Curve. These comments are divided into two categories: general comments and proposed conditions. General comments are informational points to guide the applicant in the proper planning of public works infrastructure for this project, to inform the applicant of possible extraordinary issues and/or to provide the basis for findings. Proposed conditions are requirements that Water Resources recommends be formally imposed on the applicant in the final order. Note that references to the “City Standards” herein refer to the City of Chanhassen Standard Specifications and Detail Plates. General Comments/Findings 1. The applicant is requesting three variances. One variance for adding a shed to the previously approved Water Oriented Accessory Structure (WOAS), which includes a side- yard setback variance, an Ordinary High Water-Level (OHWL) setback variance, and a WOAS size variance. The other two variances are for a privacy fence and parking pad located at the front of the property abutting Horseshoe Curve. 2. The property is located on Lotus Lake. According to the Riley-Purgatory Bluff Creek Watershed District, water quality on Lotus Lake has improved in some parameters, such 122 as water clarity and phosphorus, but degraded in others, such as chlorophyll-a, in recent years. The project is proposing placing WOAS very close to the lake – approximately 8 ft away from the waters edge. As such, the applicant is requesting that the new WOAS extend beyond the 10-foot OHWL setback. This setback is designed to limit the amount of development or structures that are placed near a lakeshore. This protects the lake from sediment and erosion issues, while also protecting said structures from possible flooding issues. The applicant’s existing WOAS encroaches into this OHWL setback, however, a variance for this deck was approved as it actually decreased the encroachment into the setback from the previous WOAS (pre-2021). The addition of the proposed shed would increase the encroachment. 3. In January 2021, a variance was approved to replace an existing, non-conforming WOAS on the property with a modular deck. This new structure was considered non- impervious surface whereas the existing, non-conforming WOAS was impervious surface. Overall, the applicant proposed to reduce the intensity of the existing non- conformity. As such, the Water Resources Department recommended approval of the variance request for the non-conforming WOAS. It is the Water Resources Department’s understanding that construction on the modular deck is complete and that the area is 225.5 square feet which is smaller than that 308 square foot size of the preexisting WOAS. 4. The applicant is now requesting to construct an 11’ x 12’ (132 square feet) storage shed at the lakeshore, adjacent to the new modular deck. This shed is proposed to be contiguous with the deck, meaning that they are to be treated as one structure. The maximum allowable WOAS allowed by the City Code is 250 square feet. The proposed shed and recently constructed modular deck, would result in a total WOAS footprint of approximately 357.5 square feet which is significantly larger than what is allowed by code and what was previously approved via the variance process. 5. The Department of Natural Resources was contacted as part of the standard agency coordination for this variance request. The DNR does not believe that storage is reason enough to grant this variance. 6.The variance request references Chanhassen City Code Sec 20-281 E(2)(f) which reads “As an alternative for general development and recreational development waterbodies, water-oriented accessory structures used solely for watercraft storage, and including storage of related boating and water-oriented sporting equipment, may occupy an area of up to 400 square feet provided the maximum width of the structure is 20 feet as measured parallel to the configuration of the shoreline.”as justification for the variance, howevertheapplicant’s design does not appear to meet the requirements for this section of code as the proposed structure (combined modular deck and shed) is not solely for watercraft storage. Furthermore, the proposed design is approximately 32’ in length which is 12’ longer that the maximum width outlined in city code. 123 7. It appears that the applicant created the lack of storage predicament described in the variance. During the design process the need for storage could have been prioritized over the modular deck but the applicant choose to install a deck instead of the storage shed. Because the area upland of the lake is no longer considered a natural bluff, the applicant could feasibly design and construct a modular deck combined with a shed that would meet all WOAS requirements outlined in code including setbacks to adjacent properties, OHWL, and sanitary sewer lines. 8. The Water Resources Department has no comment on the variance request for a privacy fence. 9. The Water Resources Department has no comment on the variance request for the parking pad. 10. It is the opinion of the Water Resources Department that this variance for the WOAS request should be denied. There appears to be sufficient options for the applicant to alter the design that would not require a variance. For example, the applicant could reduce the size of the modular deck to 118 square feet and place the shed (132 square feet) adjacent to the deck to achieve the 250 square feet size required by city code. Furthermore, there appears to be sufficient locations to place a WOAS on the property that would not require variances for side yard setback and setback to the OHWL. In addition, there does not appear to be sufficient justification for the size of the total WOAS beyond storage. Proposed Conditions 1. N/A 124 Ecological and Water Resources 1200 Warner Road St. Paul, MN 55106 February 7, 2022 MacKenzie Young-Walters Associate Planner, City of Chanhassen 7700 Market Boulevard Chanhassen, MN 55317 RE: Variance Request, 6609 Horseshoe Curve, Chanhassen – Lotus Lake Dear MacKenzie, I have had a chance to review the variance request for 6609 Horseshoe Curve in Chanhassen. The applicant is proposing a variance to the setback and dimensional standards for a water-oriented accessory structure (WOAS) on Lotus Lake. The proposed WOAS would be an 11-ft by 12-ft storage shed set 8-ft back from the OHWL. The Chanhassen Shoreland Ordinance allows for one WOAS that shall not exceed 10-ft in height and 250 square feet in area and is setback 10-ft from the OHWL. We encourage the applicant to work with the city to make their proposal consistent with Chanhassen Shoreland Ordinance provisions related to WOAS to ensure the impact to the shoreland zone is minimized to the greatest extent possible. Deviations from the shoreland ordinance, including the setback and dimensional standards listed above, are only to be allowed where there are rare and unique circumstances. This is essential in order to protect important shoreland habitat from erosion and water quality impacts, prevent vegetation destruction and maintain vegetative structure screening, and to minimize runoff from impervious surfaces. Thank you for the opportunity to review this variance request. Sincerely, Taylor Huinker Area Hydrologist CC: Dan Petrik, Land Use Specialist Equal Opportunity Employer 125 February 20, 2022 Chanhassen Planning Commission via email to: mwalters@ci.chanhassen.mn.us Re: Variance Request for 6609 Horseshoe Curve - Planning Case 2021-07B Dear Planning Commission Members, We live at 6615 Horseshoe Curve, 3 houses from the 6609 property. Due to a scheduling conflict, we are unable to attend the March 1 meeting to present our concerns in person. We do not support any of the requested variances. Specifically: The Shed: We do not support a variance for the WAOS that would expand the footprint of the new deck structure now in place (20.5ft x 11ft) to encroach, or further encroach, on side or shoreline setbacks. If square footage is added to reach 250 sqft or a variance is granted to 308 sqft, any additional structure should not encroach or further encroach on the side or shoreline setbacks. With the extensive regrading that has been done at the lakefront, there is now ample space to expand westward and avoid setback encroachments. Any hardship here has been created by the property owner in their choice to build the new deck vs a different configuration. The Security Gate: We do not support a variance for the proposed security gate. A code conforming gate can easily be designed and constructed to meet the property owner’s safety concerns. There is no hardship here. The Parking Pad: We do not support a variance for the proposed parking pad. This property will have sufficient space on the proposed driveway to accommodate a reasonable number of visitor vehicles. In reviewing the available documents regarding this property, there does not appear to be any reason to grant these variances. The plights that the property owner presents are not due to circumstances unique to the property. The circumstances cited in the request have been created by the property owner or they can be handled without any variance. 126 Granting any of these variances infringes on adjacent property owners or the lakeshore. It will also set a precedent for easing the current rules which are very reasonable. We appreciate your consideration of our position on this matter. Sincerely, Steve & Jeannie Wanek 6615 Horseshoe Curve 127 CITY OF CHANHASSEN AFFIDAVIT OF MAILING NOTICE STATE OF MINNESOTA) ss. COUNTY OF CARVER ) I, Kim T. Meuwissen, being first duly sworn, on oath deposes that she is and was on February 17,2022, the duly qualified and acting City 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 to consider a request for setback and maximum size variances for a water- oriented accessory structure (WOAS), a variance to allow a six-foot, six-inch high opaque fence(gate)within the required front yard setback, and a variance request for a front yard parking pad on property located at 6609 Horseshoe Curve. Zoned Single-Family Residential(RSF). Property Owner: Elise Bruner & Brian Bruner 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. 4_4.) ,Tu'Tv Kim . Me uwr en, City Clerk Subscribed and sworn to before me this 17 day of r14' " 2021 CHRISTINE S. LUSIAN Notary Public State of Minnesota My Commission Expires lanuary31,2027 otary Public 128 asd p6c° N 1 4 411111111, 1 Subject Parcel 1 Disclaimer This map is neither a legally recorded map nor a survey and is not intended to be used as one.This map is a compilation of records,information and data located in various city, county,state and federal offices and other sources regarding the area shown, and is to TAX NAME» 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 the City does TAX_ADD_L1» not represent that the GIS Data can be used for navigational, tracking or any other TAX ADD L2» purpose requiring exacting measurement of distance or direction or precision in the depiction of geographic features. The preceding disclaimer is provided pursuant to Minnesota Statutes§466.03,Subd. 21 (2000),and the user of this map acknowledges that the City shall not be liable for any damages, and expressly waives all claims,and agrees to defend,indemnify,and hold harmless the City from any and all claims brought by User,its employees or agents,or third parties which arise out of the user's access or use of data provided. w T it„ It Subject tParcel ' r Disclaimer This map is neither a legally recorded map nor a survey and is not intended to be used as one.This map is a compilation of records,information and data located in various city, county,state and federal offices and other sources regarding the 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 the 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 the depiction of geographic features. The preceding disclaimer is provided pursuant to Next Record»«TAX_NAME» Minnesota Statutes§466.03, Subd. 21 (2000),and the user of this map acknowledges TAX ADD L1» that the City shall not be liable for any damages,and expressly waives all claims,and TAX ADD L2»agrees to defend,indemnify,and hold harmless the City from any and all claims brought by User,its employees or agents,or third parties which arise out of the user's access or use of data provided. 129 C r 0 0 C L w - y0 7 0 C i ro LOT Lo aOSC (CO .0 a) OL y N ! JLCN O m,+° oEoyrMl0fO .0 ._ L O a) O L a-' -O rm_oo. PS: 2. 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Chapter 19, Article VII, Surface Water Management: States standards required to meet goals and policies of the City’s surface water management plan. Chapter 20, Article II, Division 2, Amendments: States process for amending the Zoning code. Chapter 20, Article II, Division 3, Variances: States process and requirements for granting variances. Chapter 20, Article II, Division 6, Site Plan Review: States process and requirements for granting site plan approval. Chapter 20, Article VIII: Planned Unit Development District: States expectations and requirements for Planned Unit Developments. Chapter 20, Article XXIII, Division 7, Design Standards for Commercial, Industrial and Office-Institutional Developments: Stipulates design standards for Commercial, Industrial, and Office-Institutional developments. Chapter 20, Article XXIV, Off-Street Parking and Loading: States parking lot design and space requirements. Chapter 20, Article XXV, Landscaping and Tree Removal: States landscaping and tree preservation standards for developments. Chapter 20, Article XXVI, Signs: States requirements for signage. SUGGESTED ACTION “The Chanhassen Planning Commission recommends City Council approve Concept PUD 2022-04, subject to the Conditions of Approval.” SUMMARY RSI Marine is requesting Conceptual PUD approval for a mixed use Planned Unit Development (PUD) which would facilitate the construction of four 20,000-square foot boat storage buildings. BACKGROUND In August of 1996 the City Council approved a site plan for the construction of an 8,152-square foot commercial stable and 12,936-square foot commercial kennel along with conditional use permits allowing multiple buildings on a single lot and permitting the commercial kennel and stable. Variances 133 allowing metal siding for the stable and a pylon sign were also approved at this time. In July of 2005, the property was subdivide to create two separate lots, one for each of the principal buildings. In 2020, a portion of the property became right-of-way as part of the Highway 101 realignment and the western building was removed to make way for a construction staging area. DISCUSSION The applicant is requesting that the City approve a Conceptual PUD for the parcels northeast of the intersection of Highway 101 and Highway 61. The applicant is proposing constructing four 20,000- square foot buildings on the site to be used for indoor boat storage. They have stated that they envision this as an interim use until City sewer is available. They have noted the proposed use will utilize high quality finishes, allow for the present improvement and reasonable use of the site, and, due to the nature of the use, will generate minimal traffic and other impacts. They are proposing a gate, fence, and video monitoring to provide on-site security. They believe that once full municipal services are available the site’s use will shift to include a commercial component. The property’s current Fringe Business (BF) District zoning would allow for the proposed use as an interim use; however, the property is guided mixed use, a blend of commercial and high-density residential development, by the City’s 2040 Land Use Plan, and any City approvals must be consistent with this classification. In this case, the Comprehensive Plan specifies that the allowable zoning for the mixed use classification is PUD (Planned Unit Development). Staff believes that the use of PUD zoning for this development will allow the applicant reasonable use of the parcel until City sewer becomes available. The proposed use meets a need for the community, generates minimal traffic, has no outdoor storage component, and can meet the City’s design and landscaping requirements. The applicant has demonstrated the site can adequately provide parking for a future retail/office/warehousing mix of uses once sanitary sewer is available. In the longer term, the uses permitted by the PUD will encourage the property to redevelop as mixed use center once the proposed building’s reach the end of their lifecycle. For these reasons staff supports the Conceptual PUD. A full discussion can be found in the attached staff report. RECOMMENDATION Staff recommends that the Planning Commission adopt the following motion: "The Planning Commission recommends that the City Council approve the Conceptual PUD, subject to the conditions of approval." The recommended conditions of approval can be found in the attached staff report. ATTACHMENTS Staff Report PUD Ordinance Development Review Application 134 Proposal to City of Chanhassen RSI Marine Storage Plan Set Stormwater Management Narrative and Summary Engineering Comments County Review Comments Landscaping and Tree Preservation Memo Affidavit of Mailing 135 CITY OF CHANHASSEN PC DATE: March 1, 2022 CC DATE: March 21, 2022 REVIEW DEADLINE: March 29, 2022 CASE #: PC 2022-04 BY: MYW SUMMARY OF REQUEST: RSI Marine is requesting a Conceptual PUD approval for a mixed use Planned Unit Development (PUD) which would facilitate the construction of four 20,000-square foot boat storage buildings. LOCATION:10500 and 10520 Great Plains Boulevard APPLICANT:RSI Marine Rob Schatzle 1533 West 3rd Avenue Shakopee, MN 55379 PRESENT ZONING: Fringe Business District (BF) 2040 LAND USE PLAN:Mixed ACREAGE:8.33 acres DENSITY: NA FLOOR AREA RATIO: .22 LEVEL OF CITY DISCRETION IN DECISION-MAKING: The City has a relatively high level of discretion in approving Rezonings because the City is acting in its legislative or policy-making capacity. A rezoning must be consistent with the City’s Comprehensive Plan. The City’s discretion in approving or denying a Site Plan is limited to whether or not the proposed project complies with Zoning Ordinance requirements. If it meets these standards, the City must then approve the site plan. 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 Zoning 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. Notice of this public hearing has been mailed to all property owners within 500 feet. PROPOSAL/SUMMARY The applicant is requesting that the City approve a Conceptual PUD for the parcels northeast of the intersection of Highway 101 and Highway 61. The applicant is proposing constructing four 20,000-square foot buildings on the site to be used for indoor boat storage. They have stated that PROPOSED MOTION: “The Chanhassen Planning Commission recommends City Council approve the Concept PUD 2022-04, subject to the conditions of approval.” 136 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 2 they envision this as an interim use until City sewer is available. They have noted the proposed use will utilize high quality finishes, allow for the present improvement and reasonable use of the site, and, due to the nature of the use, will generate minimal traffic and other impacts. They are proposing a gate, fence, and video monitoring to provide on-site security. They believe that once full municipal services are available, the site’s use will shift to include a commercial component. The property’s current Fringe Business (BF) District zoning would allow for the proposed use as an interim use; however, the property is guided mixed use, a blend of commercial and high- density residential development, by the City’s 2040 Land Use Plan, and any City approvals must be consistent with this classification. In this case, the Comprehensive Plan specifies that the allowable zoning for the mixed use classification is Planned Unit Development (PUD). Staff believes that the use of PUD zoning for this development will allow the applicant reasonable use of the parcel until City sewer becomes available. The proposed use meets a need for the community, generates minimal traffic, has no outdoor storage component, and can meet the City’s design and landscaping requirements. The applicant has demonstrated the site can adequately provide parking for a future retail/office/warehousing mix of uses once sanitary sewer is available. In the longer term, the uses permitted by the PUD will encourage the property to redevelop as a mixed use center once the proposed building’s reach the end of their lifecycle. For these reasons, staff supports the conceptual PUD. APPLICABLE REGULATIONS Chapter 19, Article IV, Subsurface Sewage Treatment Systems: States septic system requirements and requires deviations from these standards to go through Chapter 20’s variance process. Chapter 19, Article VII, Surface Water Management: States standards required to meet goals and policies of the City’s surface water management plan. Chapter 20, Article II, Division 2, Amendments: States process for amending the zoning code. Chapter 20, Article II, Division 3, Variances: States process and requirements for granting variances. Chapter 20, Article II, Division 6, Site Plan Review: States process and requirements for granting site plan approval. Chapter 20, Article VI: Wetlands: States wetland buffer and setback requirements. Chapter 20, Article VIII: Planned Unit Development District: States expectations and requirements for Planned Unit Developments. 137 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 3 Chapter 20, Article XXIII, Division 7, Design Standards for Commercial, Industrial and Office- Institutional Developments: Stipulates design standards for Commercial, Industrial, and Office- Institutional developments. Chapter 20, Article XXIV, Off-Street Parking and Loading: States parking lot design and space requirements. Chapter 20, Article XXV, Landscaping and Tree Removal: States landscaping and tree preservation standards for developments. Chapter 20, Article XXVI, Signs: States requirements for signage. BACKGROUND In August of 1996 the City Council approved a site plan for the construction of an 8,152-square foot commercial stable and 12,936-square foot commercial kennel along with conditional use permits allowing multiple buildings on a single lot and permitting the commercial kennel and stable. Variances allowing metal siding for the stable and a pylon sign were also approved at this time. In July of 2005, the property was subdivide to create two separate lots, one for each of the principal buildings. In 2020, a portion of the property became right-of-way as part of the Highway 101 realignment and the western building was removed to make way for a construction staging area. EXISTING CONDITIONS SITE CONSTRAINTS The parcels are zoned BF with a combined area of 8.33 acres. The property’s existing BF zoning requires a minimum lot area of 20,000 square feet with a minimum lot frontage of 100 feet, a minimum lot death of 150 feet, and maximum lot cover of 40 percent; however, this area is guided for mixed-use development in the City’s 2040 Land Use Plan which requires that the zoning be changed to PUD. A commercial kennel/stable formerly operated on the site. A well, retaining walls, an approximately 7,500-square foot asphalt parking area, an approximately 7,000-square foot gravel driveway, an approximately 8,000-square foot building, and an approximately 360-square foot shed remain from the previous business. Bluff Creek Corridor This property is not located within the Bluff Creek Overlay District. Wetland Protection 138 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 4 There is/is not a wetland located on the property; however, there is a small mange type 2 wetland in the ditch south of the property. As the applicant is proposing to utilize the site’s existing access to Flying Cloud Drive, the proposed development should not impact this wetland; however, the wetland buffer strip and setbacks for this wetland must be maintained. These wetlands have a 20 foot minimum buffer strip, 15 foot accessory structure buffer edge setback, and 30 foot principal structure buffer edge setbacks. Bluff Protection There are no bluffs on the property. The property has numerous steep slopes but none of them meet the City’s definition of a bluff (i.e. a natural topographic features with an elevation change of 25 feet or greater and a slope of 30 percent or greater). The Lower Minnesota River Watershed District (LMRWD) also regulates steep slopes and the applicant will need to verify with the watershed district if the project triggers their Rule F – Steep Slopes. Shoreland Management The property is not located within a shoreland protection district. Floodplain Overlay This property is not within a floodplain. A small section of the ditch south of the property is within the floodplain; however, no portion of the project will take place below the Base Flood Elevation (721’ contour). CONCEPT PUD REVIEW ANALYSIS The existing zoning of the property, BF, is not consistent with the land use designation of the property, Mixed. The Comprehensive Plan allows less intensive land uses to remain in place. However, any approval by the City for development of the property must be consistent with the Comprehensive Plan. SURROUNDING ZONING AND USES The parcels to the east, west, and southeast of the subject parcel are also zoned BF. The other nearby parcels are zoned Agricultural Estate (A2) district. Nearby uses include nonconforming rental housing, a golf driving range, a used car dealership, a cold storage facility, and large lot residential properties. 139 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 5 With the exception of the single-family residences, all of these uses are legal nonconforming, conditional uses, or interim uses. LAND USE - ZONING CONSISTENCY As noted earlier, the parcels are guided for the Mixed land use category in the City’s 2040 Land Use Plan. The City’s Comprehensive Plan states that PUD zoning is the appropriate zoning for this land use category. The use of PUD zoning, as proposed by the applicant, is consistent with the Comprehensive Plan’s land use designation for these parcels. JUSTIFICATION FOR REZONING TO PUD Planned Unit Developments (PUD) provide for increased flexibility to develop a site by relaxing most normal zoning district standards, but in exchange for this flexibility they allow the City to require a higher quality and more sensitive development than would occur under traditional zoning. The City Code requires that PUDs encourage the following: 1. Preservation of desirable site characteristics and open space and protection of sensitive environmental features, including steep slopes, mature trees, creeks, wetlands, lakes and scenic views. Finding. The applicant’s proposal leaves the area of the steep slopes on the western portion of the property undisturbed. The use of a PUD helps facilitate the consolidation of development to the property’s less environmentally sensitive area. 2. More efficient and effective use of land, open space and public facilities through mixing of land uses and assembly and development of land in larger parcels. Finding. The use of PUD zoning allows for reasonable use of the property in the short term while facilitating the long-term development of the parcel as a mixed use center with a blend of complementary uses. The use of PUD zoning allows for multiple buildings to be placed on a single lot permitting a more efficient and effective use of land and allowing for shared parking and other synergies between uses. 3. High quality of design and design compatible with surrounding land uses, including both existing and planned. Site planning, landscaping and building architecture should reflect higher quality design than is found elsewhere in the community. Finding. This area is intended to serve as the City’s southern gateway. For this reason, the PUD ordinance will require that building elevations facing Highway 61 will exceed 140 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 6 the City’s minimum design standards. Proposed buildings will be reviewed through the site plan review process and be required to comply with standard and all other applicable standards. 4. Sensitive development in transitional areas located between different land uses and along significant corridors within the city will be encouraged. Finding.The mix of uses permitted by the PUD will allow for this development to create sensitive transitions between the mixed uses permitted near the intersection Highway 101 and Highway 61 and the future high density residential areas to the east of this site. 5. Development which is consistent with the Comprehensive Plan. Finding. The use of PUD zoning sets up the framework for the property to develop as a true mixed-use district including retail, office, storage, and residential uses once sanitary sewer becomes available to the site, while allowing immediate use of the site as storage facility. Traditional zoning would not be able to accommodate both the short- and long- term usage of the site in a manner consistent with the Comprehensive Plan. 6. Parks and open space. The creation of public open space may be required by the City. Such park and open space shall be consistent with the Comprehensive Park Plan and overall trail plan. Finding. The Comprehensive Park Plan does not propose public lands in this area. The preservation of open space and undisturbed areas on the site is facilitated by the consolidation of development allowed by the use of PUD zoning, particularly the ability to place multiple buildings on a single lot. 7. Provision of housing affordable to all income groups if appropriate with the PUD. Finding.Not applicable as part of this development. 8. Energy conservation through the use of more efficient building designs and sitings and the clustering of buildings and land uses. Finding. Energy conservation will be facilitated through the clustering of buildings on a single lot. 9. Use of traffic management and design techniques to reduce the potential for traffic conflicts. Improvements to area roads and intersections may be required as appropriate. Finding. Appropriate traffic management techniques will be used. The developer and site users will be required to use traffic demand management strategies as appropriate. 141 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 7 For the above reasons, staff believes the applicant’s request for rezoning to PUD is justified. The proposed PUD ordinance is provided below: Flying Cloud Center (PUD 2022-04) A. Intent The purpose of this zone is to create a Mixed-Use Planned Unit Development (PUD) accommodating a mix of commercial, office, residential, and warehousing uses. The use of the PUD zone is to allow for a greater variety of uses consistent with the property’s “Mixed” Land Use guidance and to allow for more flexible design standards in order to ensure a higher quality and more sensitive development. B. Uses The allowed uses in in this zone shall be as listed in this section. If there is a question as to whether or not a use falls under a stated category, the Community Development Director shall make that interpretation. a. The following are Permitted Uses i. Antennas as regulated by article XXX of the zoning code ii. Arts, Entertainment, and Recreation iii. Banks and Financial Institutions iv. Brew pub, subject to the requirements of section 20-968 v. Brewery operated in conjunction with a taproom producing less than 3,500 barrels per year, subject to the requirements of section 20-969 vi. Clinics vii. Clothing and Clothing Accessories Stores viii. Electronics and Appliance Stores ix. Food and Beverage Stores x. Gasoline Stations xi. Health and Personal Care Stores xii. Microdistillery operated in conjunction with a cocktail room, subject to the requirements of section 20-967 xiii. Multifamily dwellings 1. Maximum of 46 units xiv. Offices xv. Restaurants xvi. Personal and Laundry Services xvii. Sporting Goods, Hobby, Musical Instrument, and Book Stores xviii. Warehousing and Storage 1. Total square footage of all warehouses and storage buildings on site may not exceed 80,000 square feet b. The following are Permitted Accessory Uses 142 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 8 i. Accessory Solar Energy Systems (subject to the requirements of section 20-1093) ii. Garage as part of a multifamily residential development iii. Parking Lots iv. Signs as per allowed in a General Business District 1. Signs must reflect the quality of the development and must be architecturally compatible with the buildings materials and colors v. Temporary outdoor sales and events (subject to the requirements of section 20-964) C. Lot Requirements and Setbacks a. Shall be as specified for the General Business District b. Maximum height is as follows: i. For the principal structure, three stories/35 feet ii. For accessory structures, one story/15 feet D. Design Standards a. This area is part of the City’s southern gateway and as such it is expected that building elevations facing Highway 61 will exceed the minimum standards established by Division 7 and 9 of Article XXIII of the City Code SITE PLAN REVIEW The applicant is proposing four 20,000-square foot buildings which will be used for indoor boat storage. The applicant has stated that the site will have no outdoor storage or exterior trash receptacles. The applicant has stated that they intend to use tilt up concrete panels and other high quality finishes on the visible sides of the property. ARCHITECTURAL COMPLIANCE Size Portion Placement The applicant has indicated that the buildings will be arranged so that the storage bays face the interior of the development. Due to the proposed use, the buildings are not anticipated to have a traditional main entryway, nor is it desirable for the building’s entrances to face the public streets; however, the use of recessed entries, awnings, or other means of articulation is encouraged. If entries are proposed facing a public street, it is the City’s expectation that they be articulated in a manner consistent with the requirements of the City’s design standards. 143 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 9 The applicant is proposing using tilt up panels for the visible portions of the development. The City Code requires that buildings of more than 40 feet in width be divided into increments between 20 and 40 feet wide through articulation of the façade. The applicant can achieve this either through façade modulation or potentially through the use of vertical division using different textures or materials. Material and Detail The use of tilt up concrete panels that are grid or brick like in appearance would meet the City’s material and detail requirements. Smooth panels would not be permitted for the sections of the building visible from public roads. The applicant would be able to use accent materials such as metal, glass block, spandrel glass, or similar materials approved by the City so long as they make up no more than 15 percent of the building’s façade. Color The applicant has not provided a proposed color palette; however colors shall be harmonious. Building colors shall consist of muted colors with low reflectance. Recommended colors include browns, grays, tans, beiges and dark or muted green, blues and reds. Bright or brilliant colors and sharply contrasting colors may be used only for accent purposes occupying a maximum of ten percent of building facades. Height and Roof Design The applicant has indicated the buildings will be one story with a likely height of around 16 feet. Any mechanical equipment located on the roof will need to be 100 percent screened from public 144 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 10 view, either through the use of architectural elements such as parapet, landscaping that will be effective in the winter, or location. The applicant should include pitched elements (roof, awnings, entries, etc.) to the maximum extent practicable and, if a flat roof is utilized, an ornamental parapet or cornice should be present to help define the roof.If any roof mounted mechanical equipment is present, it shall be screened from public view. Note: The above image illustrates a variety of techniques that can be used to meet the requirement of the City’s design standards. Staff recognizes that due to the nature of the proposed use, the fenestration standards will be reduced through the methods discussed in the following section. Facade Transparency While the City typically requires that 50 percent of the first floor elevation viewed by the public include transparent elements such as windows or doors, with other areas including landscaping materials and architectural detailing and articulation, the City Code allows for warehouses to have reduced fenestration standards. This reduction must be offset by the use of spandrel glass or architectural detailing which provides arches, patterning, recesses and shadowing that provide aesthetic interest. The applicant will need to demonstrate that the design of the building elevations visible from public streets meets the requirements of this ordinance. Site Furnishing The nature of the applicant’s proposal makes the inclusion of benches, tables, and chairs impractical. Fence The applicant is proposing a fence to help secure the site. The City Code restricts commercial and industrial fences to a maximum height of eight feet. If the proposed fence does not meet the definition of an open fence, it must be located outside of the required front yard setbacks and sight distance triangle. The fence should also be located behind the required landscape buffers. 145 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 11 Loading Areas, Refuse Area, Etc. The applicant has stated that no external trash enclosures will be present on the property. All storage bays will be oriented towards the interior of the development and will be minimally visible from public streets. Lot Frontage and Parking Location The applicant is not proposing locating any parking between the buildings and the primary street. The applicant has shown approximately 69 parking stalls located between the building’s stalls and the side street; however, this lot area is provided to show proof of parking for when the site redevelops to include non-storage uses. The exact amount, location, and configuration of the site’s parking would be determined at that time based on the mix of uses. ACCESS The applicant is proposing using the existing access to Flying Cloud Drive. Access to the site is currently had from Flying Cloud Drive (CSAH 61) and is located near the western property line. The preliminary plans indicate that the current access will remain and no additional accesses to the surrounding Carver County rights-of-way are proposed. The development will be required to construct a commercial driveway access in accordance with City standards. Any comments or conditions by Carver County associated with impacts to their rights-of-way must be adhered to and all permits required must be obtained prior to construction activities commencing. It appears no turnaround is provided in the preliminary plans. In accordance with Section 20- 1122 of City Code, a turnaround is required when access is had from a state highway, county road or collector roadway. As access is being had from CSAH 61, a turnaround will be required that can adequately facilitate the turning movement of the largest anticipated design vehicle for the site or the City’s largest fire truck, whichever is greater. EASEMENTS The applicant is proposing to vacate the existing easements and to dedicate 10-foot drainage and utility easements along the perimeter of the combined parcel. Additional drainage and utility easements will be required over public utilities (i.e. water main) extended into the property. The exact dimensions of the water main drainage and utility easements will be determined by the location and depth of the water main; however, the minimum is typically a 20-foot wide easement centered over the main. GRADING AND DRAINAGE The existing conditions plan sheet and drainage maps included in the Conceptual PUD submittal show an existing building near the center of the property with access to Great Plains Boulevard provide by an asphalt parking area and gravel driveway. Stormwater runoff generally flows from north to south down the slope of the site where it enters a drainage swale along Flying Cloud 146 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 12 Drive. The drainage swale conveys stormwater from west to east. Stormwater leaves the site by way of an existing 48” culvert under Flying Cloud Drive which conveys the stormwater to the South through Bluff Creek and ultimately outleting to the Minnesota River. The preliminary plans provided with the Conceptual PUD submittal show a significant amount of grading. The design steepens the hill on the northeast side of the site to create a flat area conducive for the four proposed buildings with access and parking. The proposed design uses a combination of drainage swales and stormwater infrastructure to collect and convey stormwater into a Best Management Practice (BMP) located on the southwest corner of the property. The design shows stormwater being conveyed from the proposed BMP to the existing swale along Flying Cloud Drive through an outlet control structure. Any impacts to Carver County’s right-of- way must be approved and permitted by the County prior to construction activities. The overall design of the stormwater infrastructure mimics the flow path of the existing condition and acts to convey stormwater runoff from impervious surfaces through water quality BMPs. A more detailed analysis of stormwater volumes and rates may be required to show the wetland onsite is not negatively impacted by the proposed design. EROSION CONTROL The proposed development will exceed one (1) acre of disturbance and will, therefore, be subject to the General Permit Authorization to Discharge Stormwater Associated with Construction Activity Under the National Pollution Discharge Elimination/State Disposal System (NPDES Construction Permit). The applicant has prepared and submitted a preliminary Surface Water Pollution Prevention Plan (SWPPP) and generally appears feasible. The SWPPP is a required submittal element for preliminary plat review. No earth disturbing activities may occur until an approved SWPPP is developed. This SWPPP shall be a standalone document consistent with the NPDES Construction Permit and shall contain all required elements as listed in Parts III and IV of the permit. The SWPPP will need to be updated as the plans are finalized, when the contractor and their sub-contractors are identified and as other conditions change. RETAINING WALLS The applicant is proposing several retaining walls. Smooth face concrete, masonry, railroad ties, and timber may not be used for the construction of the retaining walls. Any walls over four feet in height will require a building permit and engineered design. Any walls under four feet in height will require a zoning permit. It should be noted that the height of any retaining wall is measured from the top of the wall to the bottom of the footing (not to the top of grade adjacent to the bottom of the wall). Any walls located in a drainage and utility easement will require an Encroachment Agreement. Portions of the retaining walls are illustrated to be either close to or directly over the western property line. Due to the proximity to the property line, the construction of these walls would require construction activities to occur on the abutting property. The construction of any improvements that impact or require access to abutting properties must have the appropriate 147 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 13 right-of-entry agreements and/or temporary construction easements prior to construction operations commencing. LANDSCAPING A Planned Unit Development (PUD) is expected to ‘protect… mature trees…” and ‘reflect higher quality design of…landscaping’. The proposed development site has existing trees as evidenced in a field inspection and shown in current aerial mapping applications. The existing trees and woods are not included on the Existing Conditions sheets, nor reflected in the submitted Canopy Coverage calculations shown on the Landscape Plan. It is unknown if any of the existing trees will be preserved, but it appears that there may be some in part of the ‘undisturbed area’ shown on the plan that may possibly be unaffected by site grading. The applicant will need to submit a tree inventory for the site as well as update the canopy coverage calculations. Based on the calculations, the applicant will need to meet and potentially exceed the minimum requirements for replacement tree planting on the site. Staff recommends that the applicant consider using a no-mow turf grass or prairie mix in place of the proposed sod areas to promote a sustainable landscape design for the site. 148 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 14 A site plan review for the site will be required to show foundation plantings on the outward facing sides of the buildings. Buffer yard plantings are required along the property lines. The landscape plan shows the following proposed landscaping for the site. Required plantings Proposed plantings Buffer Yard B – North prop. line, Regional Trail, 780’ 15 Overstory trees 31 Understory trees 46 Shrubs 1 Overstory trees 4 Understory trees 46 Shrubs Buffer Yard C – South prop. Line, Hwy 61, 700’ 21 Overstory trees 42 Understory trees 63 Shrubs 6 Overstory trees 0 Understory trees 0 Shrubs Buffer Yard C –west prop. line, Hwy 101 Great Plains Blvd, 500’ 15 Overstory trees 30 Understory trees 45 Shrubs 3 Overstory trees 3 Understory trees 0 Shrubs Buffer Yard C - East property line, 460’ 10 Overstory trees 20 Understory trees 31 Shrubs 2 Overstory trees 0 Understory trees 0 Shrubs 149 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 15 The applicant does not meet minimum requirements for buffer yard plantings on the site. The vehicular-use area is required by Code to have landscaping that includes islands or peninsulas for every 6,000 square feet of use area and landscape areas and a minimum number of trees in and around the parking area in order to reduce the overall heat island effect of pavement and improve aesthetics of the site. Minimum requirements for landscaping for the parking lot include 2,816 square feet of landscaped area around the parking lot, five landscaped islands or peninsulas, and 11 trees for the parking lot. The applicant’s proposed as compared to the requirements for landscape area and parking lot trees is shown in the following table: Required Proposed Vehicular-use landscape area 2,816 sq. ft.0 sq. ft. Trees/parking lot 11 trees 0 trees Landscape islands or peninsulas/parking lot 5 islands/peninsulas 0 islands/peninsulas The landscaping as proposed in the concept plan does not meet minimum requirements for trees, landscaping or islands/peninsulas. Acknowledging that the standard requirements for trees and landscape islands within the paved area may prove difficult to incorporate into the site, staff recommends that the applicant propose alternatives that also provide environmental benefits and/or reduction in the heat island effect caused by large expanses of asphalt. LIGHTING/SIGNAGE The applicant has stated that site lighting will be downcast and minimal with virtually no light leaving the property line. The applicant will need to demonstrate compliance with the City’s lighting ordinance as part of the site plan review process. The use of motion activated lights to aide in site security is encouraged. The development will be subject to the requirements of the City’s Sign Code for the General Business (BG) District. The proposed PUD ordinance would also require that all signage be architecturally compatible with buildings’ materials and colors. MISCELLANEOUS The buildings will need to have fire sprinkler systems installed and fire panel(s) to facilitate monitoring the sprinkler systems. Hydrants will be required and the fire access roads/driveway grades may not exceed 10 percent. If an HVAC system is required, any and all exterior components will need to be screened from public view, either through the use of materials similar to the building materials or by using heaving landscaping that will be effective in winter. 150 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 16 Carver County property information shows two parcels abutting the preliminary plat’s western property lines that are listed as “Parcel ID: Gap”. The status of these parcels must be clarified prior to the recording of the proposed plat. PARKS In 2005, a Stipulation of Settlement (Court File No. 10-CV-05-48) between PCH Development, LLC and the City of Chanhassen was agreed to regarding the Park Dedication fees and Surface Water Management fees surrounding the subdivision of the “Paws Claws and Hooves Addition” subdivision (Planning Case #2003-04 and the property of this Conceptual PUD). The park fee was reduced to $2,800. The settlement agreement states, “If all or any part of the property is changed to a different principal use or further subdivided, the property shall be subject to payment of additional Park Dedication and Surface Water Management fees based upon the rates in effect at that time applicable to the proposed use and type of municipal approval requested.” However, as the stipulation was between the property owner and the City and was not required to be memorialized against the property, if the property owner changes from PCH Development, LLC, no park fees will be required if the PUD is approved. If the property is subdivided in the future, park fees will be collected at the rate in affect at the time of platting, minus the $2,800.00 already paid. STORMWATER MANAGEMENT The project site is located within the Lower Minnesota River Watershed District (LMRWD). The LMRWD is the LGU that administers NPDES Construction Permits for stormwater management. The proposed development will exceed the one (1) acre of new impervious area and will therefore require permanent stormwater BMPs to be constructed as part of this project and maintained by the owner. The project will be subject to stormwater regulations outlined under LMRWD Rule D including rate, volume, and water quality. The City of Chanhassen also regulates the design, construction, and maintenance of stormwater infrastructure. Article VII, Chapter 19 of City Code describes the required stormwater management development standards. Section 19-141 states that “these development standards shall be reflected in plans prepared by developers and/or project proposers in the design and layout of site plans, subdivisions and water management features.” A stormwater maintenance agreement and associated operations and maintenance plan is required for all private stormwater BMPs. Preliminary plans provided with the Conceptual PUD submittal show stormwater treatment and rate control from a wet pond with an incorporated filtration bench BMP located on the southwest corner of the property. The stormwater BMP appears to be properly sized for the impervious surface proposed in the plans. The design of the BMP is highly dependent on soil types and infiltration rates of the underlying soils. Soil borings, infiltration testing and an associated geotechnical report will be needed to confirm the design of the stormwater BMP. No geotechnical report was included as part of the Conceptual PUD submittal. 151 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 17 The City’s Water Resources Engineer reviewed the preliminary plans provided with the Conceptual PUD. Specific comments regarding the design of stormwater infrastructure and BMPs were provided to the applicant. In 2005, a Stipulation of Settlement (Court File No. 10-CV-05-48) between PCH Development, LLC and the City of Chanhassen was agreed to regarding the Park Dedication fees and Surface Water Management fees surrounding the subdivision of the “Paws Claws and Hooves Addition” subdivision (PC #2003-04 and the property of this Conceptual PUD). The Surface Water Management fee was reduced to $9,900.00 and was paid on July 25, 2005. The settlement agreement states, “If all or any part of the property is changed to a different principal use or further subdivided, the property shall be subject to payment of additional Park Dedication and Surface Water Management fees based upon the rates in effect at that time applicable to the proposed use and type of municipal approval requested.” However, as the stipulation was between the property owner and the City and was not required to be memorialized against the property, if the property owner changes from PCH Development, LLC, no stormwater fees will be required if the PUD is approved. If the property is subdivided in the future, stormwater fees will be collected at the rate in affect at the time of platting, minus the $9,900.00 already paid. UTILITIES Currently, municipal sanitary sewer and potable water services are not available to the site. During the build-out of the Highway 101 Realignment project, which was substantially completed in 2021, public sanitary sewer mains and water mains were extended along the corridor. However, these newly extended utilities are not fully active nor ready for operation to service properties, as such the site does not have adequate public sanitary sewer and water to fully serve the development’s needs. With a lack of adequate City utilities in the area, the development will be required to provide private utility services (sanitary sewer and potable water) to adequately meet the needs of the development. The City has preliminarily agreed to allow the development to tap into the public water main which was extended with the Highway 101 Realignment project, but only to service the development’s fire suppression needs. At this time there is no sufficient demand along the extended water main to supply water to the quality standards that the City requires for consumption. This is important to note because the preliminary plans provided indicate the existing well on site is proposed to be abandoned. If the site will have any fixtures requiring the use of water other than for fire suppression needs, a private source of water supply must be used for those fixtures. The preliminary plans indicate tapping of the existing public water main for fire suppression needs at the southwest corner of the property. As shown on the preliminary plans, this would be infeasible as the water main was housed in a casing at the location, and would be required to be extended further west to facilitate the connection. Regardless, the development will be required to extend the public water main to the western property line, and the extension into the site must be along or near the improved private access to allow for reasonable access for future repair and 152 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 18 maintenance. Adequate public drainage and utility easements will be required over the public main as it extends into the site. Private fire laterals can then be tapped from the public main as necessary. The property and potential future properties associated with this developable area will be specially assessed for the extension of the public sanitary sewer when they connect. A rough estimate of potential fees is provided below; however, it should be noted that the final fee will depend on the actual project costs: COMPLIANCE TABLE Code Project Building Height 3 stories 1 story 35 feet 16 feet Building Setback N - 50' E - 10'N - 132' E - 75' W - 25' S - 25'W - 205' S –50’ Parking Stalls 45 stalls*154 stalls** (Standards: ) Parking Setback N - 50' E - 10'N - 180' E - 30' W - 25' S - 25' W - 20' S - 160' Hard Surface Coverage 70%34% Lot Area 20,000 sq. ft.0 sq. ft. (0 ac.) *Unless applicant demonstrates that due to business model less parking is required. **Shown as conceptual proof of parking for future repurposing of buildings. 153 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 19 Note: Listed “Code” parking setbacks can be reduced to 10 feet if 100 percent screening is provided at least five feet above the parking lot. This screening must be in the form of berms and landscaping. VARIANCE REVIEW The applicant is requesting a variance to use a holding tank in lieu of a septic system. Currently, the site does not have access to the City’s sanitary sewer system and the site’s use does not require the permanent presence of an employee. Since employees would only be present to drop off and pick up boats, the site will likely only require a single bathroom. Given low volume of waste that the site will generate and the fact that the site will be required to hook up to City sewer once it becomes available, requiring a full-fledged septic system would be excessive and unnecessary. RECOMMENDATION Staff recommends that the Planning Commission adopt the following motion: The Planning Commission recommends that the City Council approve the Concept PUD, subject to the conditions of approval: Planning: 1. The buildings must meet the requirements of Chapter 20, Article XXIII, Division 7 “Design Standards for commercial, industrial, and office-institutional developments. Of particular importance: a. The south and west elevations must be articulated either through the use of façade modulation-stepping back/forward or extending a portion of the façade and/or vertical division using different textures or materials. b. The south and west elevations must include architectural detailing to facilitate the reduction the City’s façade transparency requirement, as outlined in section 20- 1068. c. Tilt-up concrete panels must be grid or brick like in appearance. d. Accent materials (metal, glass block, spandrel glass, etc.) are limited to 15 percent of the building’s façade. e. Flat roofs should be defined with an ornamental parapet or cornice. 2. A complete site plan application will be required concurrent with the request to rezone to Planned Unit Development (PUD). 3. A complete variance request for the use of holding tanks will be required concurrent with the request to rezone to Planned Unit Development (PUD). 4. An expanded narrative should be provided addressing the proposed use of the site. Narrative should address business model, number of employees present, parking needs, expected traffic generation and other similar elements. 154 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 20 5. Proposed fence and gate shall not exceed eight feet in height, shall be located outside of required front yard setbacks and sight triangle if not of an open design, and shall be located behind required landscape buffers. 6. A proposed sign plan shall be provided as part of the site plan application. 7. A proposed lighting plan shall be provided as part of the site plan application. 8. Information on the heights and materials shall be provided for the proposed retaining walls. Landscaping: 1. Must include existing trees and woods on existing conditions sheet and update the canopy coverage calculations. a. Must meet or exceed required replacement tree planting for the site. 2. Must submit a tree inventory for the site. 3. Staff recommends use of no-mow turf grass or prairie mix in place of the proposed sod areas to promote a sustainable landscape design for the site. 4. Must meet the buffer yard plantings as required by section 20-1176(f). 5. Must include foundation plantings on the outward facing sides of the buildings. 6. Staff recommends that the applicant propose an alternative to the required vehicular use area landscaping requirements that meets the intent of the ordinance by providing environmental benefits and/or reducing the heat island effect caused by large expanses of asphalt. Engineering: 1. Existing easements must be vacated prior to recording the final plat. 2. Ten-foot public drainage and utility easements will be required along all property lines. 3. Public drainage and utility easements will be required over public utilities with dimensions adequate to properly repair and maintain the utility (i.e. water main). 4. Status of the two parcels abutting the preliminary plat’s western property lines listed as “Parcel ID: Gap” must be resolved prior to recording of the final plat. 5. Applicant must coordinate all right-of-way activity with Carver County, including considerations and conditions associated with easements for the property as well as requirements associated with ingress/egress and construction activities such as grading and hauling operations. 6. A turnaround should be included meeting the requirements of Sec. 20-1122. The turnaround must facilitate the turning movement of the largest anticipated design vehicle for the site or the City’s largest fire trunk, whichever is greater. 7. Existing Conditions Survey: a. Topographic data 100 feet beyond the property boundary. b. Illustration of existing features that would impact the site’s ingress/egress (e.g. the full extents of Flying Cloud Drive which includes the median near the site’s entrance). c. Utilities on or adjacent to the property, including location, size and invert elevation of storm sewers, catch basins and manholes; location and size of water mains (including casings) and hydrants; location of gas mains, high pressure lines, 155 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 21 fire hydrants, electric and telephone lines, and street lights. The direction, distance to, and size of such facilities shall be indicated. d. Sewage treatment systems and associated conveyance systems. e. Existing easements and associated recording document numbers. f. Property information within 150 feet of the property’s boundary. g. Retaining wall elevations. h. Show buffer and wetland setbacks for manage type 2 wetland 8. Retaining walls over 4 feet in height require an engineered design. 9. Retaining walls in easements will require Encroachment Agreements and if any construction or impacts require access to abutting properties, the appropriate right-of- entry agreements and/or temporary construction easements must be obtained. 10. No earth disturbing activities may occur until an approved SWPPP is developed. This SWPPP shall be a standalone document consistent with the NPDES Construction Permit and shall contain all required elements as listed in Parts III and IV of the permit. The SWPPP will need to be updated as the plans are finalized, when the contractor and their sub-contractors are identified and as other conditions change. 11. The City has preliminarily agreed to allow the development to tap into the public water main which was extended with the Highway 101 Realignment project, but only to service the development’s fire suppression needs. 12. If the site will have any fixtures requiring the use of water other than for fire suppression needs, a private source of water supply must be used for those fixtures. 13. Water Connection fees will be due at the time potable water is available to the site and will be at the rates in effect at that time. 14. The property and potential future properties associated with this developable area will be specially assessed for the extension of the public sanitary sewer when they connect. 15. The development will be required to extend the public water main to the western property line, and the extension into the site must be along or near the improved private access to allow for reasonable access for future repair and maintenance. Water Resources: 1. Permit from Lower Minnesota River Watershed District (LMRWD) will be required. Staff believes proposed stormwater will trigger LMRWD Rule D. 2. Verify with LMRWD if the project will trigger Rule F – Steep Slopes. 3. Must address Water Resources Engineer’s (WRE) comments on stormwater design transmitted via email on February 4, 2022. a. H&H models should be updated per these comments prior to site plan submittal. 4. Buildings and parking areas must meet required wetland setbacks. 5. Geotechnical report and infiltration testing to show sequencing of BMP design from infiltration to filtration will likely be required prior to the issuance of building permit. 6. HydroCAD models should be submitted in addition to reports for review by the WRE. 7. Stormwater facilities must meet the requirements of section 19-144 of the City Code. 8. A stormwater maintenance agreement and associated operations and maintenance plan is required for all private stormwater BMPs. 156 10500 and 10520 Great Plains Boulevard Concept PUD March 1, 2022 Page 22 9. If the property is subdivided in the future, Stormwater fees will be collected at the rate in affect at the time of platting, minus the $9,900.00 already paid. Park: 1. If the property is subdivided in the future, Park fees will be collected at the rate in affect at the time of platting, minus the $2,800.00 already paid. Fire: 1. All buildings will require fire sprinkler systems. 2. All buildings will need a fire panel (or one central location panel) to monitor the fire sprinkler systems. 3. Fire hydrant(s) will be required - currently showing on preliminary utility plan. 4. Fire access roads/driveway grading not to exceed 10% in grade. ATTACHMENTS 1. Proposed PUD Ordinance 2. Development Review Application 3. RSI Proposal 4. Plan Set 5. Stormwater Narrative 6. Engineering Memo 7. Water Resources Memo 8. Landscaping Memo 9. Public Hearing Notice and Mailing List g:\plan\2022 planning cases\22-04 10500 and 10520 great plains blvd rez and spa\rsi concept pud staff report.doc 157 Flying Cloud Center (PUD 2022-04) A. Intent The purpose of this zone is to create a Mixed Use PUD accommodating a mix of commercial, office, residential, and warehousing uses. The use of the PUD zone is to allow for a greater variety of uses consistent with the property’s “Mixed” Land Use guidance and to allow for more flexible design standards in order to ensure a higher quality and more sensitive development. B. Uses The allowed uses in in this zone shall be as listed in this section. If there is a question as to whether or not a use falls under a stated category, the Community Development Director shall make that interpretation. a. The following are Permitted Uses i. Antennas as regulated by article XXX of the zoning code. ii. Arts, Entertainment, and Recreation iii. Banks and Financial Institutions iv. Brew pub, subject to the requirements of section 20-968. v. Brewery operated in conjunction with a taproom producing less than 3,500 barrels per year, subject to the requirements of section 20-969. vi. Clinics vii. Clothing and Clothing Accessories Stores viii. Electronics and Appliance Stores ix. Food and Beverage Stores x. Gasoline Stations xi. Health and Personal Care Stores xii. Microdistillery operated in conjunction with a cocktail room, subject to the requirements of section 20-967. xiii. Multifamily dwellings 1. Maximum of 46 units xiv. Offices xv. Restaurants xvi. Personal and Laundry Services xvii. Sporting Goods, Hobby, Musical Instrument, and Book Stores xviii. Warehousing and Storage 1. Total square footage of all warehouses and storage buildings on site may not exceed 80,000 sq. ft. b. The following are Permitted Accessory Uses i. Accessory Solar Energy Systems (subject to the requirements of section 20-1093). ii. Garage as part of a multifamily residential development. iii. Parking Lots 158 iv. Signs as per allowed in a General Business District 1. Signs must reflect the quality of the development and must be architecturally compatible with the buildings materials and colors. v. Temporary outdoor sales and events (subject to the requirements of section 20-964) C. Lot Requirements and Setbacks a. Shall be as specified for the General Business District. b. Maximum height is as follows: i. For the principal structure, three stories/35 feet. ii. For accessory structures, one story/15 feet. D. Design Standards a. This area is part of the City’s southern gateway and as such it is expected that building elevations facing Highway 61 will exceed the minimum standards established by Division 7 and 9 of Article XXIII of the City Code. 159 (C Qca-o-- c'l COMUUI{ITY DEVELOPUENT DEPARTMENT Plannlng Dlvlsion - 7700 Markol Boulevard Malllng Addrcss - P.O. Box 147, Chanhassan, MN 55317 Phono: (952) 227-1 100 I Faxi lg52') 227-1110 CITY OI'CIIAI{IIASSII{ I APPLICATION FOR DEVELOPMENT REVIEW r"r*,1i t lJ.r c"0".€b-r-Etr. 6oo,yRa,r.wSubmlttd Oato: tr tr (Rd"r ,o th. Wppd.lo /4pplb.tb, d,€crrfst tor nqlhcd iubtffiol fu7t,t/tbn lhat l,l/,;/st ffinp',4/y N, .*dhn) tr Comprehenslvs Plan Amendmont........E Mlnor MUSA llne fo. falllng on-slte soxrars ..... E Clmdltonal Uss Permlt (CUP) lJ Slngle-Famlly RssHence,...........,...E Atl othsrs......,.. E lnterlm Uae Permlt (lUP) E ln cor:runctlon dth Shgb-Famlly Re€ldonco..E Nt ot]rere.........,..,.,..,..,,.,..,,.,.......... $750 $100 $500 E Slgn Plan Rev|ew............................,....-.--..,.......$150 E Slt6 Plan Revlew (sPR)Admlnlstrallvs.,,.,,.. ,-........ $100 CommerciaUlndusLlal Dlstdcls'..,........,, -....... $500 Sezonlno (REZ) $(n"n'nio uritt o.volopment (PUD)..............,... U Mlnor Amondmont to oxlstlng PUD Ll All Othars......,.. Plus 310 por 1,000 Equaro t6€t of bulHlng ar€a: (80,000 thousand squaro fost) 'krdud..unbor of illthg .rtdry.: _ 'ln*rdo nq .roaa0{firdoy!€a: Rosl&nfial DbUlcE .-.......3500 Plus $5 per dwelllng unlt ( udts) E subdMston (suB) Cmato S lols or l6ss ---..,8300 CtBate ovsI 3 lot8,..-..,....-,-..--8600 + $16 pgI lot[_ lots) Metes & Bounds (2 lots)..................,.....--.-,..$300 Comolldatg Lol!,,.. ,--,....0150 Lot Lhe AdJustment........................,.,.,..,.........$150 Flnal P1at,.....,......,.. *.-... $700 (lndudes $450 egcrow for atlorney costs)' 'Add0ooa! 6r.row mly t nqrr.d ftr olhar apdo*.r. lhaoJgh lho do\,sloFtror{ conlllcl E Wotland Alteratlon Permlt (WAP) trtr All Othors Single-Famlly Rosldsnce I Vacatlon of EasemantsrRlght-ot-way (VAc)........ t30o G tli onC rEcor&lo fu.. rnylpply) (vartance Uen)........,..,....,....,.............------.-. $200 9600 $100 $325 s425 $325 $425 trtr I Zomg eppoat. I Zonhg OrOinance Amondmont (ZoA)....,.....,,.,... llglE: Wholl multlpl..ppllo.tlom !r! procattrd corcuntr ly, lh. apptopdlto f.o lhdl b. oh.,g.d tor.a.h .ppllcatlon. Use Permit Vadancs Eaaements (_ easements) $150 $275 $100 E500 {Property Owners' Llst wlthln 600' (ctty b g.rl€ ato rn.I p(}lpCtcatton n .tho).............. .,... i3 per address I elcrow for neaorahg Documents (chock aI hatE Cordltonal Uso Pomlt E VacaUon E Metss & Bornds SuMMslon (3 docs.) trtr Section 1; Application Type (check all that apply) I Section 2: Required lnformation Description of Proposal: propotty Addrsss or 1_o""11*. NE comer of Flylng Ooud & Greal Plalns Blvd Parcol #:L6gal Descrlptlon:Lot 1&2 of Paws, Claws & l-loovas Additlon Total Acr6ag6:8.33 Wstlands PrBsent? E Yes B tto Present Zor ng:Frlngo Buslness Dlstrlcl (BF)Roqu6sl6d Zonlng:MOil6 Prosont Land Uso Doslgnatlon:€dgggDt R.quosbdLandUeor"dg@ Exlstlng Us6 of Property:Vacant Ech6ck box lf s€parate nanallve ls attached.IAN 2I 2022 CHANHASSEN PI,AIJNING DEPT D Btr f_ addresses) psr documont Slte Plan Agrosment 160 Section 3: Property Owner and Appllcant lnformation ArrLiCAii I OTiiErl TiiAN PROPERTY OWNER: ln slgning thls appllcatlon, l, as appllcant, represenl to havo oblalned authorizatlon from tho properly own€r to flle thls appllcallon. I agroo to bo bound by condilions otapproval, subject only lo tho rlght to object Etthe hsarings on lhs application or during the appaal perlod. lf ihis appllcatlon his not been signed by tha proPsr9 ownor, I have attached saparate documenlatlon of full legal capaclty to lile th6 appllcatton. Thls appliiation - should bo Proe,ossod ln my name and I am the party whom thg Cily should contact regardlng-any matter podainlng to thls application. I wlll ksop myself ln ormod of tho doadllnes for submlssion of mat€rlal and th6 frogiess of tliis applidtbn. I funhsr undsrstrand that additlonalfees may be charged for consultlng fses, fsaslblllty studles, etc. wlth an sstimale prlor to any euthorlzallon to procsed with the study. I certlfy that the lnformatlon and exhlblts submllted are true and conect. Name:RSI Marina Address:'1533 West 3rd Ave clvstatszip: shakopoo, MN 55379 Celli Fax:Emall:rslb mall.com Slgnatu16: 6on1""1. Rob SchsEle Phone: (952) 23&2084 (012)839e990 Date:/-)S -)o 2e- PROPERTY OUVI,IER: ln signlng lhls appllcatlon, l, as property owner, have full legal capaclly to, and h€reby do, authorJze tho llling or lhls appllc€tlon. I undsrstand lh€t condltlons ol approval aro blndlrE and agraa to be bound by lhose condltlons, subject only to the rlght to oblect at ths hsarings ff during lhe appsal psrlods. I wlll keop myself lnform8d of the deadllnss for submlsslon of materlal and ths progrose of thls appllcation. I furthgr und8rsland that addlllonal fses may bs clrarged for consulllng foes, faaslblllty studlss, 6tc, w{th an estimats prlor to any authorlzatlon lo proceed wlth the study. I c€rtfy that the lnformatlon and exhibits submlttsd aro kuo and conscl. Nams:Nancy Blood lorlContact: Phone:Addross:P.O. Box 9,{ City/Slate/Zip: Shakopae Email:zt4 o e Signaturs: Name: PROJECT ENGINEER (r appflcabls) James R Hlll, lnc 2999 W. Co Rd 42 City/Stats/Zlp:Bumsvllle, MN 55306 Jgcoopor@rhlnc.comEmail: 6on1r"1. Joel Coopar Phone: (952) 890{044 Cell: Fax: (612) 508-6480 Address: Thls appllcatlon must be oompleted ln full and must bo accomparled by all information and plans raqtlrad by applicable City Ordlnance provisions, Befor€ llling lhis applicallon, refar lo th8 approprlate Applicatlon Checklist and confor wlth thB Plannlng Dsparlmont lo determlne the spsdflc ordlmnco and appllcable procodwal requkom€nts and fsss. A dat€rmlnatlon of complstoness of tho appllcatlon shall be made within 1 5 business days of application submlttal. A writton notco of applicatlon dsficloncies shall bo mallsd to the appllcant withln 15 buslness days ot applicatlon. Who should rscslve coplss of staff roports?rothor Contact lnformallon: Nam6:Property OwIrer Vla: E Emall E Maflod Papor Copy Malled Paper Copy Malled Paper Copy Mallsd Papor Copy Address: City/Statezlp: Emall: INSTRUCTIONS TO APPLICANT: Complela all necossary fonn llelds, then select SAVE FORM to save a copy to tour dovlco. PRINT FORM and dsllvor to olty along wlth requlrod documents and paymont. SUBMTT FORM to send E dlgltal copy to th6 dty br processlng. SAVE FORII!PRINT FORM Appllcant Ma I Emall IEnglneer Ma: E Emall flohet. Via: E Emall E cellt ?f z. 2-5o - ? Z// Eo'' - oate. /- 78.?A Section 4: Nolirication lnfornlalion trtrtr E SUBillII FORM 161 1533 west 3rd ave Shakopee MN 55379 Site Address: 10520 Great Plains, Chanhassen, MN January 28, 2022 RSI Marine is a full service boat storage and Marina owner (Carribean Marina Lake Minnetonka). Storage locations are scattered around the Twin Cities. We are proposing four buildings 20,000 each with an estimated 80,000 square feet of buildings. We are proposing tilt up panels and other high quality finishes on all visible sides of the property. These buildings will be used for indoor boat storage until city sewer service is extended to the property. There will be no outside storage nor will there be any Residential use in the complex. The site will have video security, gate and fence. This site will have minimal traffic and noise because of the use. Site lighting will be downcast and minimal with almost nothing at the property lines. No hazardous waste material storage is allowed. No exterior storage is allowed on the site. We do not have any trash receptacles allowed outside. This use will in our opinion be an exceptional interim use until city sewer is extended. At that point we feel the “market ” for commercial/retail will be stronger here due to the market forces that will push the extension of city services. At this point we will work with Commercial Real Estate professionals to convert these buildings to other uses that align with the Comp Plan and the market. In the interim we will be able to enhance the property thus making the entire area more desireable. Upon final development of this project once city services are extended we feel it will be valued at over $200psf when complete. We would like to thank you for your consideration of our project. 162 Rob Schatzle RSI Marine Rob@rsimarine.com 1533 West 3rd Ave Shakopee, MN 55379 website www.rsimarine.com 163 SB-1 llllllllllllllllllllllllllllllllllll164 SB-1 165 166 167 168 BEARINGS ARE BASED ON THE SOUTHEASTLINE OF LOT 2, BLOCK 1, PAWS CLAWS ANDHOOVES ADDITION WHICH IS ASSUMED TOHAVE A BEARING OF S 71°41'29" W.DENOTES FOUND OPEN 1/2 INCH IRON MONUMENTDENOTES SET 1/2 INCH BY 14 INCH IRON MONUMENTWITH CAP MARKED R.L.S. NO. 47481DENOTES FOUND JUDICIAL LANDMARKERDENOTES FOUND RIGHT OF WAY MONUMENTDENOTES CARVER COUNTY MONUMENTDRAINAGE AND UTILITY EASEMENTS BEING10 FEET IN WIDTH, UNLESS OTHERWISEINDICATED, ADJOINING LOT LINES, ANDBEING 10 FEET IN WIDTH, UNLESSOTHERWISE INDICATED, ADJOINING RIGHTOF WAY LINES, AS SHOWN ON THE PLAT.DRAINAGE AND UTILITY EASEMENTSARE SHOWN THUS:VICINITY MAPDRAWN BYDATEREVISIONSPL011CAD FILESS.GZJPROJECT NO.SHEET 1 OF 1PROPERTY DESCRIPTIONRSI MARINE ST. 0ICHAEL 0INNESOTA PRELIMINARY PLAT FORPCH Development, LLC  WEST C.R.  S8ITE 1 B8RNSVILLE 0N  PHONE .. PKDPSWRQ#MUKLQF.FRP PLANNERS  EN*INEERS  S8RVEYORS ZZZ.MUKLQF.FRP James R. Hill, Inc.Lot 1, BLock 1, PAWS CLAWS AND HOOVES ADDITION, Carver County, Minnesota,Excepting Parcel 1C and Parcel 1D as shown on CARVER COUNTY RIGHT OF WAY PLATNO. 29, Carver County, Minnesota.andLot 2, BLock 1, PAWS CLAWS AND HOOVES ADDITION, Carver County, Minnesota,Excepting Parcel 1A and Parcel 1B as shown on CARVER COUNTY RIGHT OF WAY PLATNO. 29, Carver County, Minnesota.169 SB-1 llllllllllllllllllllllllllllllllllll170 ESTIMATED EROSION AND SEDIMENT CONTROL QUANTITIES RSI MARINE - CHANHASSEN, MN TYPE OF PROJECT: COMMERCIAL DEVELOPMENT TYPE OF WORK: Mass Grading, Utility and Street Construction, Paving. Subsequently, Joint Trench and Home construction will occur. TOTAL PLATTED AREA: 8.33 AC TOTAL DISTURBED AREA: 6.26 AC PROPOSED (DESIGN) IMPERVIOUS AREA:2.83 AC SPECIAL WATERS: The site is NOT within a 1-mile radius of a special or impaired water. CONSTRUCTION PHASING The project is expected to be constructed in three phases, with mass grading occurring during one construction season. Mass grading is anticipated to be completed within 4 weeks from commencement of work. Utility and street construction is anticipated to be completed within 4 weeks from commencement of work. POTENTIONAL FOR EROSION AND DISCHARGE OF SEDIMENT As the site will be stripped of topsoil and vegetation for a period of several weeks during construction, the potential for erosion will increase. The overall gradients on the site are relatively low. The street subcut will serve as temporary sediment basins during construction. The project is primarily cut, and therefore perimeter erosion will flow inward towards the project. The risk of discharge of sediment off of the site is low, due to the grade orientation and design. The highest potential for discharge off the site is from the street entrance. Contractor will be required to manage completion of 3:1 slopes such that soil exposure is minimized. After excavation and embankments are completed, slopes shall be re-spread with topsoil, the slope grades certified, and erosion blanket installed as per the plan. Contractor shall coordinate these steps to be carried out in a timely manner. EROSION CONTROL BMPs The construction plans anticipate the use of, but are not limited to, the following Erosion Control BMPs: 1.Perimeter delineation to minimize disturbed areas 2.Temporary Rock Construction Entrance 3.Temporary straw mulch as needed. 4.Seed and mulch/sod 5.Erosion Control Blanket 6.Minimize active or disturbed work areas 7.Horizontal slope grading 8.Turf Reinforcement Mat SEDIMENT CONTROL BMPs The construction plans anticipate the use of, but are not limited to, the following Sediment Control BMPs 1.Sediment traps constructed in street subcut 2.Rock filter dikes in street subcut 3.Utilize permanent stormwater basin as Temporary Sediment Basin 4.Silt Fence at project perimeter or toe of slopes 5.Inlet protection on existing catch basins 6.Inlet protection on existing culverts 7.Inlet protection after utility construction 8.Linear control along back of new curb and gutter (sod, bioroll, or silt fence) 9.Routine street sweeping adjacent to construction entrance. 10.Ditch checks Refer to plans for designated locations of BMPs, details and implementation notes. BASIN AND TRAP DEWATERING BMPs Should the need arise for basin or trap dewatering, contractor shall utilize a floating skimmer pump intake, such that the water is drawn from the surface of the basin. Pumped effluent shall not be discharged into Surface Waters in a turbid state. Turbid effluent shall be filtered with mechanical devices, chemical filtering, or a combination thereof, to a state of 50 NTUs or less. STABILZATION BMPs The construction plans anticipate the use of, but are not limited to, the following Stabilization BMPs: 1.After lot pads are grade certified, permanent seed and mulch can be applied, generally from the front of the building pad, extending to the rear of the lot (areas where no further utility construction is anticipated.) 2.After 3:1 slopes on lots are certified, permanent seed and erosion control blanket can be applied. 3.Rip rap at pipe outfalls 4.Permanent seed and erosion control blanket on basin slopes after grade certified. 5.After curbs are backfilled, apply permanent seed and mulch to remaining building pads and boulevard area not already stabilized. 6.Sod placement, as appropriate. POLLUTION CONTROL BMPs 1.Fueling: A fixed fueling station is not anticipated. Contractor will be required to implement BMPs for onsite re-fueling of equipment. 2.Concrete Washout: A suggested washout area will be specified on the plan. The developer has the ability to adjust location or to provide alternative washout containment. 3.There is not an anticipated need for storing chemicals, paints, solvents or other potentially toxic or hazardous materials on site. SEED & MULCH SPECIFICATIONS Seed placed for permanent cover or final stabilization requires 6” minimum topsoil cover. Exception: Infiltration basins - see basin details for soil type). Multiple site visits will be required to accommodate permanent or temporary stabilization as required during the phases of construction. (1) General Seed & Mulch A.Seed: MNDOT 25-141 at a rate of 59 lb/acre B.Fertilzer: Type 3 slow release 10-10-10 at a rate of 200 lb/acre C.Mulch: MNDOT Type 1 at a rate of 2 tons/acre (2)Temporary Cover Crop (Ponding/Infiltration/Adjacent Slope Areas) A.Seed: MNDOT 21-112 at a rate of 100 lb/acre B.Fertilzer: Type 3 slow release 10-10-10 at a rate of 200 lb/acre C.Mulch: MNDOT Type 3 at a rate of 2 tons/acre (3)Hydro-Seeding (Stockpile) A.Seed: MNDOT 22-111 Seed & Type Hydraulic Mulch at a rate of 10 lb/1000 gal B.Fertilzer: Type 3 slow release 10-10-10 at a rate of 50 lb/1000 gal C.Mulch: Type Hydraulic Mulch at a rate of 350 lb/1000 gal D.Water: 875 gal/1000 gal E.Apply at 6000 gal of Slurry per acre (4) Stormwater Basins (Aquatic Bench up to HWL) A.Seed: MNDOT 33-261 at a rate of 14.5 lb/acre B.Fertilzer: Type 3 slow release 10-10-10 at a rate of 200 lb/acre C.Mulch: MNDOT Type 3 at a rate of 2 tons/acre INSPECTION AND MAINTENANCE OF BMPs Routine Inspection 1.Rock Entrance - Inspect weekly. If rock becomes filled with sediment and tracked material to the extent the purpose ceases to function, remove the contaminated rock and replace with new rock. 2.Silt fence - Inspect weekly, particularly for damaged sections, breaches, down-gradient areas, flow concentration points, scour areas and sections adjacent to sensitive areas. Where capacity is filled to more than 50% of depth, sediment shall be removed to restore capture capacity. 3.Sediment traps and basins - Inspect weekly. Where capacity is filled to more than 50% of depth, sediment shall be removed to restore capture capacity within 72 hours of discovery. 4.Inlet Protection - Inspect weekly or more frequently as needed after multiple rainfalls less than 0.5”. Verify intake capacity is not compromised. Where capacity is filled to more than 50% of depth, sediment shall be removed to restore capture capacity. 5.Inspect other site specific BMP's on a weekly basis minimum. Rain Event Inspection - Mandatory, within 24 hours after a rain event 0.5” or greater. Complete all items associated with Routine Inspection. Furthermore, inspect site for breaches, failures, scours and gullying. Take corrective actions as necessary to restore functionality to the BMP's. If a given situation is discovered to be prone to repetitive failure, advise the Engineer and Contractor for SWPPP and BMP amendments. ADDITIONAL SWPPP NOTES 1.All Erosion and Sediment Control facilities shall be maintained by the contractor during the construction operations. Any temporary facilities which are to be removed as called for on these plans and specifications shall be removed by the contractor at the time directed by the engineer. The contractor shall then restore the subsequently disturbed areas in accordance with these plans and specifications. 2.Wherever practical and feasible, the contractor shall protect and preserve existing natural trees, grass and other vegetative cover in effort to provide natural buffering and filtering of runoff. 3.Contractor shall be adaptable in adjusting construction schedules in anticipation of weather forecasts of precipitation, in order to minimize risk of erosion and sediment transport. 4.It is the responsibility of the contractor to keep public streets, travel ways, parking lots and trails utilized for ingress to and egress from the construction site free of dirt, sediment and debris, resulting from construction activity. Cost for this shall be considered incidental to the contract. 5.Adequate control of dust shall be maintained by the contractor. Cost for dust control shall be considered incidental to the contract. ADDITIONAL SWPPP NOTES (continued) 6. Perimeter controls shall not be removed until final stabilization of areas draining toward the control devices. 7. When temperatures do not exceed 40 degrees F, areas that require seed and mulch stabilization shall be dormant seeded. Application rate shall be two times the normal rate. No dormant seeding shall be done on ice or snow greater than 2” in depth. 8. Any areas that were seeded that do not achieve 70% coverage shall be reseeded at the contractor's expense, where coverage limitation is caused by lack of seed germination and growth. MPCA STORMWATER PERMIT - RESPONSIBILITY The Contractor will be required to become the Permittee for the project, until final stabilization and transfer of responsibility is completed. Transfer of responsibility shall be completed with the Permit Modification Form. OWNER: ROB SCHATZLE - RSI MARINE - 952-233-2084 PERMITTEE: TBD OPERATOR(S): TBD OTHER CONTACTS ENGINEER: JOEL G. COOPER, P.E., - James R. Hill, Inc. - 952-890-6044 TRAINING REQUIREMENTS JOEL G. COOPER, P.E. DESIGN OF CONSTRUCTION SWPPP (CERTIFICATION(2020-2023)) UNIVERSITY OF MINNESOTA INSTRUCTOR: JOHN CHAPMAN LGU CONTACT: CHARLES HOWLEY - CHANHASSEN - 652-227-1169 MPCA COMPLIANCE: JOSH NORMAN - MPCA - 651-757-2389 The Contractor shall follow the implementation sequence as described on these plans. Amendments shall be made as site conditions change. Amendments shall be proposed by contractor and reviewed by the engineer. All BMP's selected and implemented shall be appropriate for the time of year, the current site conditions and for the estimated duration of use. These plans shall be considered part of the project SWPPP. A copy of the SWPPP shall remain on site throughout active construction. 171 172 1.1 Permit Coverage. [Minn. R. 7090] 1.2 This permit is required for construction activity that results in land disturbance of equal to or greater than one (1) acre or if a project is part of a common plan of development or sale that ultimately will disturb greater than one (1) acre, and authorizes, subject to the terms and conditions of this permit, the discharge of stormwater associated with construction activity. [Minn. R. 7090] 1.3 Construction activity covered by this permit cannot commence until coverage under this permit is effective as described in item 3.3 through 3.4 or, if applicable, until the Minnesota Pollution Control Agency (MPCA) has issued an individual National Pollutant Discharge Elimination System (NPDES)/State Disposal System (SDS) construction stormwater permit for the project. [Minn. R. 7090] 1.4 This permit covers all areas of the State of Minnesota except land wholly within the boundaries of a federally recognized Indian Reservation owned by a tribe or a tribal member or land held in trust by the federal government for a tribe or tribal member. [Minn. R. 7090] 1.5 Coverage under this permit is not required when all stormwater from construction activity is routed directly to and treated by a "treatment works," as defined in Minn. Stat. Sect. 115.01, subd. 21, operated under an individual NPDES/SDS permit with a Total Suspended Solids (TSS) effluent limit. [Minn. R. 7090] 1.6 This permit covers ongoing projects covered under any previous construction stormwater permit that are not complete on the issuance date of this permit. Permittees must either remain in compliance with the previous permit and terminate coverage within 18 months of the issuance date of this permit or comply with this permit, including updating the Stormwater Pollution Prevention Plan (SWPPP), within the 18- month period. Permittees of previously permitted projects are not required to incorporate any additional requirements regarding the permanent stormwater treatment system included in this reissued permit. [Minn. R. 7090] 1.7 Coverage for projects that extend beyond the expiration date of this permit remains effective for a grace period covering project completion and Notice of Termination (NOT) submittal. If Permittees cannot complete projects during the grace period, the MPCA will extend coverage under the next permit and permittees must comply with the requirements of the new permit including updating the SWPPP. Permittees are not required to follow changes to the permanent stormwater treatment section of the next permit. [Minn. R. 7090] 2.1 Prohibitions and Limitations of Coverage. [Minn. R. 7090] 2.2 The owner must develop a complete and accurate SWPPP that complies with item 5.2 prior to submitting the application for coverage and starting construction activity. Failure to prepare a SWPPP prior to submitting the application may result in permit revocation. [Minn. R. 7090] 2.3 This permit prohibits discharges of any material other than stormwater treated in compliance with this permit and discharges from dewatering or basin draining activities in accordance with Section 10. Prohibited discharges include, but are not limited to, wastewater from washout of concrete, stucco, paint, form release oils, curing compounds and other construction materials, fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance, soaps or solvents used in vehicle and equipment washing and maintenance, and other hazardous substances or wastes. [Minn. R. 7090] 2.4 This permit does not authorize stormwater discharges related to the placement of fill into waters of the state requiring local, state or federal authorizations (such as U.S. Army Corps of Engineers Section 404 permits, Minnesota Department of Natural Resources (DNR) Public Waters Work permits or local governmental unit (LGU) Wetland Conservation Act replacement plans or determinations). [Minn. R. 7090] 2.5 This permit does not authorize stormwater discharges associated with industrial activity except for construction activity. Permittees must obtain coverage for discharges associated with industrial activity under a separate NPDES/SDS permit once day-to-day operational activities commence even if construction is ongoing. [Minn. R. 7090] 2.6 This permit does not authorize discharges from non-point source agricultural and silvicultural activities excluded from NPDES permit requirements under 40 CFR pt. 122.3(e). [Minn. R. 7090] 2.7 This permit does not authorize stormwater discharges to Prohibited, Restricted, Special or Impaired waters unless permittees follow the additional stormwater requirements in Section 23. [Minn. R. 7090] 2.8 This permit does not replace or satisfy any environmental review requirements including those under the Minnesota Environmental Policy Act or the National Environmental Policy Act. The owner must verify completion of any environmental review required by law, including any required Environmental Assessment Work Sheets or Environmental Impact Statements, Federal environmental review, or other required review prior to applying for coverage under this permit. If any part of your common plan of development or sale requires environmental review, coverage under this permit cannot be obtained until such environmental review is complete. [Minn. R. 7090] 2.9 This permit does not replace or satisfy any review requirements for discharges adversely impacting State or Federally designated endangered or threatened species or a designated critical habitat. The owner must comply with the National Historic Preservation Act and conduct all required review and coordination related to historic preservation, including significant anthropological sites and any burial sites, with the Minnesota Historic Preservation Officer. [Minn. R. 7090] 2.10 This permit does not authorize discharges to wetlands unless the permittee complies with the requirements in Section 22. [Minn. R. 7090] 3.1 Application and Coverage Effective Date. [Minn. R. 7090] 3.2 The owner and operator must submit a complete and accurate on-line application with the appropriate fee to the MPCA for each project that disturbs one (1) or more acres of land or for a common plan of development or sale that will ultimately disturb one (1) or more acres. [Minn. R. 7090] 3.3 For projects or common plans of development or sale that disturb less than 50 acres or do not discharge stormwater within 1 mile (aerial radius measurement) of a special or impaired water, permittees do not need to submit the SWPPP with the application. Permit coverage for these projects is effective upon application and completing the payment process. [Minn. R. 7090] 3.4 For certain projects or common plans of development or sale disturbing 50 acres or more, the complete SWPPP must be included with the application and submitted at least 30 days before the start of construction activity. This applies if there is a discharge point on the project within one mile (aerial radius measurement) of, and flows to, a special water listed in item 23.3 through 23.6 or an impaired water as described in item 23.7. Permit coverage for these projects is effective upon submitting the application and complete SWPPP, completing the payment process and receiving a determination from the MPCA that the review of the SWPPP is complete. The determination may take longer than 30 days if the SWPPP is incomplete. If the MPCA fails to contact the permittees within 30 days of application receipt, coverage is effective 30 days after completing the payment process. [Minn. R. 7090] 3.5 The application requires listing all persons meeting the definition of owner and operator as permittees. The owner is responsible for compliance with all terms and conditions of this permit. The operator is responsible for compliance with Sections 3, 4, 6-22, 24 and applicable requirements for construction activity in Section 23. [Minn. R. 7090] 3.6 Permittees will receive coverage notification in a manner determined by the MPCA. [Minn. R. 7090] 3.7 For construction projects where the owner or operator changes (e.g., an original developer sells portions of the property to various homebuilders or sells the entire site to a new owner), the current owner and the new owner or operator must submit a complete permit modification form provided by the MPCA. The current owner and the new owner or operator must submit the form prior to the new owner or operator commencing construction activity or no later than 30 days after taking ownership of the property. [Minn. R. 7090] 3.8 For construction projects where the owner or operator changes, the current owner must provide a SWPPP to the new owner and operator that specifically addresses the remaining construction activity. The new owner or operator can implement the original SWPPP, modify the SWPPP, or develop a new SWPPP. Permittees must ensure their activities do not render another party's erosion prevention and sediment control BMPs ineffective. [Minn. R. 7090] 4.1 Termination of Coverage. [Minn. R. 7090] 4.2 Permittees must submit a NOT within 30 days after all termination conditions listed in Section 13 are complete. [Minn. R. 7090] 4.3 Permittees must submit a NOT within 30 days after selling or otherwise legally transferring the entire site, including permit responsibility for roads (e.g., street sweeping) and stormwater infrastructure final clean out, or transferring portions of a site to another party. The permittees' coverage under this permit terminates at midnight on the submission date of the NOT. [Minn. R. 7090] 4.4 Permittees may terminate permit coverage prior to completion of all construction activity if they meet all of the following conditions: a. construction activity has ceased for at least 90 days; and b. at least 90 percent (by area) of all originally proposed construction activity has been completed and permanent cover has been established on those areas; and c. on areas where construction activity is not complete, permanent cover has been established; and d. the site complies with item 13.3 through 13.7. After permit coverage is terminated under this item, any subsequent development on the remaining portions of the site will require permit coverage if the subsequent development itself or as part of the remaining common plan of development or sale will result in land disturbing activities of one (1) or more acres in size. [Minn. R. 7090] 4.5 Permittees may terminate coverage upon MPCA approval after submitting information documenting the owner cancelled the project. [Minn. R. 7090] 5.1 Stormwater Pollution Prevention Plan (SWPPP) Content. [Minn. R. 7090] 5.2 The owner must develop a SWPPP. The SWPPP must include items 5.3 through 5.26. [Minn. R. 7090] 5.3 The SWPPP must incorporate specific Best Management Practices (BMP) used to comply with the requirements of this permit. [Minn. R. 7090] 5.4 The SWPPP must include a narrative describing the timing for installation of all erosion prevention and sediment control BMPs and a description of the permanent stormwater treatment systems. [Minn. R. 7090] 5.5 The SWPPP must include the location and type of all temporary and permanent erosion prevention and sediment control BMPs along with procedures used to establish additional temporary BMPs as necessary for the site conditions during construction. Standard details and/or specifications for BMPs must be included in the final plans and specifications for the project. [Minn. R. 7090] 5.6 The SWPPP must include the calculations and other information used for the design of temporary sediment basins and any of the permanent stormwater treatment systems required in Section 15. [Minn. R. 7090] 5.7 The SWPPP must include estimated quantities anticipated at the start of the project for the life of the project for all erosion prevention and sediment control BMPs (e.g., linear feet of silt fence or square feet of erosion control blanket). [Minn. R. 7090] 5.8 The SWPPP must include the number of acres of impervious surface for both pre- and post-construction. [Minn. R. 7090] 5.9 The SWPPP must include a site map with existing and final grades, including drainage area boundaries, directions of flow and all discharge points where stormwater is leaving the site or entering a surface water. The site map must indicate the areas of steep slopes. The site map must also include impervious surfaces, soil types and locations of potential pollutant-generating activities as identified in Section 12. [Minn. R. 7090] 5.10 The SWPPP must include a map of all surface waters, existing wetlands, and stormwater ponds or basins that can be identified on maps such as United States Geological Survey 7.5 minute quadrangle maps, the National Wetland Inventory map or equivalent maps and are within one mile (aerial radius measurement) from the project boundaries that will receive stormwater from the construction site, during or after construction. The SWPPP must identify if the surface waters are special or impaired waters. [Minn. R. 7090] 5.11 The SWPPP must include a site map showing construction activity areas that are adjacent to and drain to Public Waters for which the DNR has promulgated "work in water restrictions" during specified fish spawning time frames. [Minn. R. 7090] 5.12 Permittees must identify locations of 50' buffer zones as required in item 9.17 and 100' permanent buffer zones as required in item 23.11, on plan sheets in the SWPPP. [Minn. R. 7090] 5.13 If permittees determine compliance with the following requirements is infeasible, they must document the determination in the SWPPP: a. temporary sediment basins as described in Section 14; and b. for linear projects, if the permanent stormwater treatment system cannot be constructed within the right-of-way, a reasonable attempt must be made to obtain additional right-of-way (item 15.9); and c. buffer zones as described in item 9.17 and item 23.11. [Minn. R. 7090] 5.14 If permittees determine that a temporary sediment basin is infeasible as described in item 14.10, the SWPPP must describe the alternative BMPs used. [Minn. R. 7090] 5.15 Where systems cannot meet the full volume reduction requirement on site, (e.g., the site has infiltration prohibitions, see item 16.14 through item 16.21) the permittee must document the reasons in the SWPPP. [Minn. R. 7090] 5.16 The SWPPP must include any stormwater mitigation measures proposed to be part of the final project in any environmental review document, endangered species review, archeological or other required local, state or federal review conducted for the project. For purposes of this permit, mitigation measures means actions necessary to avoid, minimize, or mitigate for impacts related to erosion prevention, sediment control, the permanent stormwater treatment system, pollution prevention management measures and discharges associated with the project's construction activity. [Minn. R. 7090] 5.17 The SWPPP must describe the methods used for permanent cover of all exposed soil areas. [Minn. R. 7090] 5.18 Permittees must identify the locations of areas where construction will be phased to minimize the duration of exposed soil areas in the SWPPP. [Minn. R. 7090] 5.19 For projects with a discharge point on the project within one (1) mile (aerial radius measurement) of and which flows to an impaired water, permittees must identify the impaired water(s), and any United States Environmental Protection Agency (USEPA)-approved Total Maximum Daily Load (TMDL) for the pollutant(s) or stressor(s) described in item 23.7. Permittees' identification must include those TMDLs approved at any time prior to permit application submittal and are still in effect. [Minn. R. 7090] 5.20 Permittees must document in the SWPPP, all trained individuals identified in item 21.2. Documentation must include: a. names of personnel required to be trained; and b. dates of training and name of instructor(s) and entity providing training; and c. content of training course. If permittees do not know the names of the individuals at the time of application, the permittees must ensure they document training before construction activity commences. [Minn. R. 7090] 5.21 The SWPPP must identify a person knowledgeable and experienced in the application of erosion prevention and sediment control BMPs who will coordinate with all contractors, subcontractors, and operators on-site to oversee the implementation of the SWPPP. [Minn. R. 7090] 5.22 The SWPPP must describe any specific chemicals and chemical treatment systems used for enhancing the sedimentation process and how it achieves compliance with item 9.18. [Minn. R. 7090] 5.23 The SWPPP must identify the person(s), organizations, or entities responsible for long-term operation and maintenance of permanent stormwater treatment systems. [Minn. R. 7090] 5.24 The SWPPP must describe methods to minimize soil compaction and preserve topsoil. Minimizing soil compaction is not required where the function of a specific area dictates compaction. [Minn. R. 7090] 5.25 The SWPPP must include any site assessments for groundwater or soil contamination required in item 16.15. [Minn. R. 7090] 5.26 The SWPPP must account for the following factors in designing temporary erosion prevention and sediment control BMPs: a. the expected amount, frequency, intensity, and duration of precipitation; and b. the nature of stormwater runoff and run-on at the site, including factors such as expected flow from impervious surfaces, slopes, and site drainage features; and c. the stormwater volume, velocity, and peak flowrates to minimize discharge of pollutants in stormwater and to minimize channel and streambank erosion and scour in the immediate vicinity of discharge points; and d. the range of soil particle sizes expected to be present. [Minn. R. 7090] 6.1 SWPPP Amendments. [Minn. R. 7090] 6.2 One of the individuals described in item 21.2.a or item 21.2.b or another qualified individual must complete all SWPPP changes. Changes involving the use of a less stringent BMP must include a justification describing how the replacement BMP is effective for the site characteristics. [Minn. R. 7090] 6.3 Permittees must amend the SWPPP to include additional or modified BMPs as necessary to correct problems identified or address situations whenever there is a change in design, construction, operation, maintenance, weather or seasonal conditions having a significant effect on the discharge of pollutants to surface waters or groundwater. [Minn. R. 7090] 6.4 Permittees must amend the SWPPP to include additional or modified BMPs as necessary to correct problems identified or address situations whenever inspections or investigations by the site owner or operator, USEPA or MPCA officials indicate the SWPPP is not effective in eliminating or significantly minimizing the discharge of pollutants to surface waters or groundwater or the discharges are causing water quality standard exceedances (e.g., nuisance conditions as defined in Minn. R. 7050.0210, subp. 2) or the SWPPP is not consistent with the objectives of a USEPA approved TMDL. [Minn. R. 7050.0210] 7.1 BMP Selection and Installation. [Minn. R. 7090] 7.2 Permittees must select, install, and maintain the BMPs identified in the SWPPP and in this permit in an appropriate and functional manner and in accordance with relevant manufacturer specifications and accepted engineering practices. [Minn. R. 7090] 8.1 Erosion Prevention Practices. [Minn. R. 7090] 8.2 Before work begins, permittees must delineate the location of areas not to be disturbed. [Minn. R. 7090] 8.3 Permittees must minimize the need for disturbance of portions of the project with steep slopes. When steep slopes must be disturbed, permittees must use techniques such as phasing and stabilization practices designed for steep slopes (e.g., slope draining and terracing). [Minn. R. 7090] 8.4 Permittees must stabilize all exposed soil areas, including stockpiles. Stabilization must be initiated immediately to limit soil erosion when construction activity has permanently or temporarily ceased on any portion of the site and will not resume for a period exceeding 14 calendar days. Stabilization must be completed no later than 14 calendar days after the construction activity has ceased. Stabilization is not required on constructed base components of roads, parking lots and similar surfaces. Stabilization is not required on temporary stockpiles without significant silt, clay or organic components (e.g., clean aggregate stockpiles, demolition concrete stockpiles, sand stockpiles) but permittees must provide sediment controls at the base of the stockpile. [Minn. R. 7090] 8.5 For Public Waters that the Minnesota DNR has promulgated "work in water restrictions" during specified fish spawning time frames, permittees must complete stabilization of all exposed soil areas within 200 feet of the water's edge, and that drain to these waters, within 24 hours during the restriction period. [Minn. R. 7090] 8.6 Permittees must stabilize the normal wetted perimeter of the last 200 linear feet of temporary or permanent drainage ditches or swales that drain water from the site within 24 hours after connecting to a surface water or property edge. Permittees must complete stabilization of remaining portions of temporary or permanent ditches or swales within 14 calendar days after connecting to a surface water or property edge and construction in that portion of the ditch temporarily or permanently ceases. [Minn. R. 7090] 8.7 Temporary or permanent ditches or swales being used as a sediment containment system during construction (with properly designed rock-ditch checks, bio rolls, silt dikes, etc.) do not need to be stabilized. Permittees must stabilize these areas within 24 hours after their use as a sediment containment system ceases. [Minn. R. 7090] 8.8 Permittees must not use mulch, hydromulch, tackifier, polyacrylamide or similar erosion prevention practices within any portion of the normal wetted perimeter of a temporary or permanent drainage ditch or swale section with a continuous slope of greater than 2 percent. [Minn. R. 7090] 8.9 Permittees must provide temporary or permanent energy dissipation at all pipe outlets within 24 hours after connection to a surface water or permanent stormwater treatment system. [Minn. R. 7090] 8.10 Permittees must not disturb more land (i.e., phasing) than can be effectively inspected and maintained in accordance with Section 11. [Minn. R. 7090] 9.1 Sediment Control Practices. [Minn. R. 7090] 9.2 Permittees must establish sediment control BMPs on all downgradient perimeters of the site and downgradient areas of the site that drain to any surface water, including curb and gutter systems. Permittees must locate sediment control practices upgradient of any buffer zones. Permittees must install sediment control practices before any upgradient land-disturbing activities begin and must keep the sediment control practices in place until they establish permanent cover. [Minn. R. 7090] 9.3 If downgradient sediment controls are overloaded, based on frequent failure or excessive maintenance requirements, permittees must install additional upgradient sediment control practices or redundant BMPs to eliminate the overloading and amend the SWPPP to identify these additional practices as required in item 6.3. [Minn. R. 7090] 9.4 Temporary or permanent drainage ditches and sediment basins designed as part of a sediment containment system (e.g., ditches with rock-check dams) require sediment control practices only as appropriate for site conditions. [Minn. R. 7090] 9.5 A floating silt curtain placed in the water is not a sediment control BMP to satisfy item 9.2 except when working on a shoreline or below the waterline. Immediately after the short term construction activity (e.g., installation of rip rap along the shoreline) in that area is complete, permittees must install an upland perimeter control practice if exposed soils still drain to a surface water. [Minn. R. 7090] 9.6 Permittees must re-install all sediment control practices adjusted or removed to accommodate short-term activities such as clearing or grubbing, or passage of vehicles, immediately after the short-term activity is completed. Permittees must re-install sediment control practices before the next precipitation event even if the short-term activity is not complete. [Minn. R. 7090] 9.7 Permittees must protect all storm drain inlets using appropriate BMPs during construction until they establish permanent cover on all areas with potential for discharging to the inlet. [Minn. R. 7090] 9.8 Permittees may remove inlet protection for a particular inlet if a specific safety concern (e.g. street flooding/freezing) is identified by the permittees or the jurisdictional authority (e.g., city/county/township/Minnesota Department of Transportation engineer). Permittees must document the need for removal in the SWPPP. [Minn. R. 7090] 9.9 Permittees must provide silt fence or other effective sediment controls at the base of stockpiles on the downgradient perimeter. [Minn. R. 7090] 9.10 Permittees must locate stockpiles outside of natural buffers or surface waters, including stormwater conveyances such as curb and gutter systems unless there is a bypass in place for the stormwater. [Minn. R. 7090] 9.11 Permittees must install a vehicle tracking BMP to minimize the track out of sediment from the construction site or onto paved roads within the site. [Minn. R. 7090] 9.12 Permittees must use street sweeping if vehicle tracking BMPs are not adequate to prevent sediment tracking onto the street. [Minn. R. 7090] 9.13 Permittees must install temporary sediment basins as required in Section 14. [Minn. R. 7090] 9.14 In any areas of the site where final vegetative stabilization will occur, permittees must restrict vehicle and equipment use to minimize soil compaction. [Minn. R. 7090] 9.15 Permittees must preserve topsoil on the site, unless infeasible. [Minn. R. 7090] 9.16 Permittees must direct discharges from BMPs to vegetated areas unless infeasible. [Minn. R. 7090] 9.17 Permittees must preserve a 50 foot natural buffer or, if a buffer is infeasible on the site, provide redundant (double) perimeter sediment controls when a surface water is located within 50 feet of the project's earth disturbances and stormwater flows to the surface water. Permittees must install perimeter sediment controls at least 5 feet apart unless limited by lack of available space. Natural buffers are not required adjacent to road ditches, judicial ditches, county ditches, stormwater conveyance channels, storm drain inlets, and sediment basins. If preserving the buffer is infeasible, permittees must document the reasons in the SWPPP. Sheet piling is a redundant perimeter control if installed in a manner that retains all stormwater. [Minn. R. 7090] 9.18 Permittees must use polymers, flocculants, or other sedimentation treatment chemicals in accordance with accepted engineering practices, dosing specifications and sediment removal design specifications provided by the manufacturer or supplier. The permittees must use conventional erosion and sediment controls prior to chemical addition and must direct treated stormwater to a sediment control system for filtration or settlement of the floc prior to discharge. [Minn. R. 7090] 10.1 Dewatering and Basin Draining. [Minn. R. 7090] 10.2 Permittees must discharge turbid or sediment-laden waters related to dewatering or basin draining (e.g., pumped discharges, trench/ditch cuts for drainage) to a temporary or permanent sediment basin on the project site unless infeasible. Permittees may dewater to surface waters if they visually check to ensure adequate treatment has been obtained and nuisance conditions (see Minn. R. 7050.0210, subp. 2) will not result from the discharge. If permittees cannot discharge the water to a sedimentation basin prior to entering a surface water, permittees must treat it with appropriate BMPs such that the discharge does not adversely affect the surface water or downstream properties. [Minn. R. 7050.0210] 10.3 If permittees must discharge water containing oil or grease, they must use an oil-water separator or suitable filtration device (e.g., cartridge filters, absorbents pads) prior to discharge. [Minn. R. 7090] 10.4 Permittees must discharge all water from dewatering or basin-draining activities in a manner that does not cause erosion or scour in the immediate vicinity of discharge points or inundation of wetlands in the immediate vicinity of discharge points that causes significant adverse impact to the wetland. [Minn. R. 7090] 10.5 If permittees use filters with backwash water, they must haul the backwash water away for disposal, return the backwash water to the beginning of the treatment process, or incorporate the backwash water into the site in a manner that does not cause erosion. [Minn. R. 7090] 11.1 Inspections and Maintenance. [Minn. R. 7090] 11.2 Permittees must ensure a trained person, as identified in item 21.2.b, will inspect the entire construction site at least once every seven (7) days during active construction and within 24 hours after a rainfall event greater than 1/2 inch in 24 hours. [Minn. R. 7090] 11.3 Permittees must inspect and maintain all permanent stormwater treatment BMPs. [Minn. R. 7090] 11.4 Permittees must inspect all erosion prevention and sediment control BMPs and Pollution Prevention Management Measures to ensure integrity and effectiveness. Permittees must repair, replace or supplement all nonfunctional BMPs with functional BMPs by the end of the next business day after discovery unless another time frame is specified in item 11.5 or 11.6. Permittees may take additional time if field conditions prevent access to the area. [Minn. R. 7090] 11.5 During each inspection, permittees must inspect surface waters, including drainage ditches and conveyance systems but not curb and gutter systems, for evidence of erosion and sediment deposition. Permittees must remove all deltas and sediment deposited in surface waters, including drainage ways, catch basins, and other drainage systems and restabilize the areas where sediment removal results in exposed soil. Permittees must complete removal and stabilization within seven (7) calendar days of discovery unless precluded by legal, regulatory, or physical access constraints. Permittees must use all reasonable efforts to obtain access. If precluded, removal and stabilization must take place within seven (7) days of obtaining access. Permittees are responsible for contacting all local, regional, state and federal authorities and receiving any applicable permits, prior to conducting any work in surface waters. [Minn. R. 7090] 11.6 Permittees must inspect construction site vehicle exit locations, streets and curb and gutter systems within and adjacent to the project for sedimentation from erosion or tracked sediment from vehicles. Permittees must remove sediment from all paved surfaces within one (1) calendar day of discovery or, if applicable, within a shorter time to avoid a safety hazard to users of public streets. [Minn. R. 7090] 11.7 Permittees must repair, replace or supplement all perimeter control devices when they become nonfunctional or the sediment reaches 1/2 of the height of the device. [Minn. R. 7090] 11.8 Permittees must drain temporary and permanent sedimentation basins and remove the sediment when the depth of sediment collected in the basin reaches 1/2 the storage volume. [Minn. R. 7090] 11.9 Permittees must ensure that at least one individual present on the site (or available to the project site in three (3) calendar days) is trained in the job duties described in item 21.2.b. [Minn. R. 7090] 11.10 Permittees may adjust the inspection schedule described in item 11.2 as follows: a. inspections of areas with permanent cover can be reduced to once per month, even if construction activity continues on other portions of the site; or b. where sites have permanent cover on all exposed soil and no construction activity is occurring anywhere on the site, inspections can be reduced to once per month and, after 12 months, may be suspended completely until construction activity resumes. The MPCA may require inspections to resume if conditions warrant; or c. where construction activity has been suspended due to frozen ground conditions, inspections may be suspended. Inspections must resume within 24 hours of runoff occurring, or upon resuming construction, whichever comes first. [Minn. R. 7090] 11.11 Permittees must record all inspections and maintenance activities within 24 hours of being conducted and these records must be retained with the SWPPP. These records must include: a. date and time of inspections; and b. name of persons conducting inspections; and c. accurate findings of inspections, including the specific location where corrective actions are needed; and d. corrective actions taken (including dates, times, and party completing maintenance activities); and e. date of all rainfall events greater than 1/2 inches in 24 hours, and the amount of rainfall for each event. Permittees must obtain rainfall amounts by either a properly maintained rain gauge installed onsite, a weather station that is within one (1) mile of your location, or a weather reporting system that provides site specific rainfall data from radar summaries; and f. if permittees observe a discharge during the inspection, they must record and should photograph and describe the location of the discharge (i.e., color, odor, settled or suspended solids, oil sheen, and other obvious indicators of pollutants); and g. any amendments to the SWPPP proposed as a result of the inspection must be documented as required in Section 6 within seven (7) calendar days. [Minn. R. 7090] 12.1 Pollution Prevention Management Measures. [Minn. R. 7090] 12.2 Permittees must place building products and landscape materials under cover (e.g., plastic sheeting or temporary roofs) or protect them by similarly effective means designed to minimize contact with stormwater. Permittees are not required to cover or protect products which are either not a source of contamination to stormwater or are designed to be exposed to stormwater. [Minn. R. 7090] 12.3 Permittees must place pesticides, fertilizers and treatment chemicals under cover (e.g., plastic sheeting or temporary roofs) or protect them by similarly effective means designed to minimize contact with stormwater. [Minn. R. 7090] 12.4 Permittees must store hazardous materials and toxic waste, (including oil, diesel fuel, gasoline, hydraulic fluids, paint solvents, petroleum-based products, wood preservatives, additives, curing compounds, and acids) in sealed containers to prevent spills, leaks or other discharge. Storage and disposal of hazardous waste materials must be in compliance with Minn. R. ch. 7045 including secondary containment as applicable. [Minn. R. 7090] 12.5 Permittees must properly store, collect and dispose solid waste in compliance with Minn. R. ch. 7035. [Minn. R. 7035] 12.6 Permittees must position portable toilets so they are secure and will not tip or be knocked over. Permittees must properly dispose sanitary waste in accordance with Minn. R. ch. 7041. [Minn. R. 7041] 12.7 Permittees must take reasonable steps to prevent the discharge of spilled or leaked chemicals, including fuel, from any area where chemicals or fuel will be loaded or unloaded including the use of drip pans or absorbents unless infeasible. Permittees must ensure adequate supplies are available at all times to clean up discharged materials and that an appropriate disposal method is available for recovered spilled materials. Permittees must report and clean up spills immediately as required by Minn. Stat. 115.061, using dry clean up measures where possible. [Minn. Stat. 115.061] 12.8 Permittees must limit vehicle exterior washing and equipment to a defined area of the site. Permittees must contain runoff from the washing area in a sediment basin or other similarly effective controls and must dispose waste from the washing activity properly. Permittees must properly use and store soaps, detergents, or solvents. [Minn. R. 7090] 12.9 Permittees must provide effective containment for all liquid and solid wastes generated by washout operations (e.g., concrete, stucco, paint, form release oils, curing compounds and other construction materials) related to the construction activity. Permittees must prevent liquid and solid washout wastes from contacting the ground and must design the containment so it does not result in runoff from the washout operations or areas. Permittees must properly dispose liquid and solid wastes in compliance with MPCA rules. Permittees must install a sign indicating the location of the washout facility. [Minn. R. 7035, Minn. R. 7090] 13.1 Permit Termination Conditions. [Minn. R. 7090] 13.2 Permittees must complete all construction activity and must install permanent cover over all areas prior to submitting the NOT. Vegetative cover must consist of a uniform perennial vegetation with a density of 70 percent of its expected final growth. Vegetation is not required where the function of a specific area dictates no vegetation, such as impervious surfaces or the base of a sand filter. [Minn. R. 7090] 13.3 Permittees must clean the permanent stormwater treatment system of any accumulated sediment and must ensure the system meets all applicable requirements in Section 15 through 19 and is operating as designed. [Minn. R. 7090] 13.4 Permittees must remove all sediment from conveyance systems prior to submitting the NOT. [Minn. R. 7090] 13.5 Permittees must remove all temporary synthetic erosion prevention and sediment control BMPs prior to submitting the NOT. Permittees may leave BMPs designed to decompose on-site in place. [Minn. R. 7090] 13.6 For residential construction only, permit coverage terminates on individual lots if the structures are finished and temporary erosion prevention and downgradient perimeter control is complete, the residence sells to the homeowner, and the permittee distributes the MPCA's "Homeowner Fact Sheet" to the homeowner. [Minn. R. 7090] 13.7 For construction projects on agricultural land (e.g., pipelines across cropland), permittees must return the disturbed land to its preconstruction agricultural use prior to submitting the NOT. [Minn. R. 7090] 14.1 Temporary Sediment Basins. [Minn. R. 7090] 14.2 Where ten (10) or more acres of disturbed soil drain to a common location, permittees must provide a temporary sediment basin to provide treatment of the runoff before it leaves the construction site or enters surface waters. Permittees may convert a temporary sediment basin to a permanent basin after construction is complete. The temporary basin is no longer required when permanent cover has reduced the acreage of disturbed soil to less than ten (10) acres draining to a common location. [Minn. R. 7090] 14.3 The temporary basin must provide live storage for a calculated volume of runoff from a two (2)-year, 24- hour storm from each acre drained to the basin or 1,800 cubic feet of live storage per acre drained, whichever is greater. [Minn. R. 7090] 14.4 Where permittees have not calculated the two (2)-year, 24-hour storm runoff amount, the temporary basin must provide 3,600 cubic feet of live storage per acre of the basins' drainage area. [Minn. R. 7090] 14.5 Permittees must design basin outlets to prevent short-circuiting and the discharge of floating debris. [Minn. R. 7090] 14.6 Permittees must design the outlet structure to withdraw water from the surface to minimize the discharge of pollutants. Permittees may temporarily suspend the use of a surface withdrawal mechanism during frozen conditions. The basin must include a stabilized emergency overflow to prevent failure of pond integrity. [Minn. R. 7090] 14.7 Permittees must provide energy dissipation for the basin outlet within 24 hours after connection to a surface water. [Minn. R. 7090] 14.8 Permittees must locate temporary basins outside of surface waters and any buffer zone required in item 23.11. [Minn. R. 7090] 14.9 Permittees must construct the temporary basins prior to disturbing 10 or more acres of soil draining to a common location. [Minn. R. 7090] 14.10 Where a temporary sediment basin meeting the requirements of item 14.3 through 14.9 is infeasible, permittees must install effective sediment controls such as smaller sediment basins and/or sediment traps, silt fences, vegetative buffer strips or any appropriate combination of measures as dictated by individual site conditions. In determining whether installing a sediment basin is infeasible, permittees must consider public safety and may consider factors such as site soils, slope, and available area on-site. Permittees must document this determination of infeasibility in the SWPPP. [Minn. R. 7090] 15.1 Permanent Stormwater Treatment System. [Minn. R. 7090] 15.2 Permittees must design the project so all stormwater discharged from the project during and after construction activities does not cause a violation of state water quality standards, including nuisance conditions, erosion in receiving channels or on downslope properties, or a significant adverse impact to wetlands caused by inundation or decrease of flow. [Minn. R. 7090] 15.3 Permittees must design and construct a permanent stormwater treatment system to treat the water quality volume if the project's ultimate development replaces vegetation and/or other pervious surfaces creating a net increase of one (1) or more acres of cumulative impervious surface. [Minn. R. 7090] 15.4 Permittees must calculate the water quality volume as one (1) inch times the net increase of impervious surfaces created by the project. [Minn. R. 7090] 15.5 Permittees must first consider volume reduction practices on-site (e.g., infiltration or other) when designing the permanent stormwater treatment system. If this permit prohibits infiltration as described in item 16.14 through item 16.21, permittees may consider a wet sedimentation basin, filtration basin or regional pond. This permit does not consider wet sedimentation basins and filtration systems to be volume reduction practices. [Minn. R. 7090] 15.6 For projects where the full volume reduction requirement cannot be met on-site, (e.g., the site has infiltration prohibitions), permittees must document the reasons in the SWPPP. [Minn. R. 7090] 15.7 Permittees must discharge the water quality volume to a permanent stormwater treatment system prior to discharge to a surface water. For purposes of this item, surface waters do not include man-made drainage systems that convey stormwater to a permanent stormwater treatment system. [Minn. R. 7090] 15.8 Where the proximity to bedrock precludes the installation of any of the permanent stormwater treatment practices required by Sections 15 through 19, permittees must install other treatment such as grassed swales, smaller ponds, or grit chambers, prior to the discharge of stormwater to surface waters. [Minn. R. 7090] 15.9 For linear projects where permittees cannot treat the entire water quality volume within the existing rightof-way, permittees must make a reasonable attempt to obtain additional right-of-way, easement or other permission for stormwater treatment during the project planning process. Documentation of these attempts must be in the SWPPP. Permittees must still consider volume reduction practices first as described in item 15.5. If permittees cannot obtain additional right-of-way, easement or other permission, they must maximize the treatment of the water quality volume prior to discharge to surface waters. [Minn. R. 7090] 16.1 Infiltration Systems. [Minn. R. 7090] 16.2 Infiltration options include, but are not limited to: infiltration basins, infiltration trenches, rainwater gardens, bioretention areas without underdrains, swales with impermeable check dams, and natural depressions. If permittees utilize an infiltration system to meet the requirements of this permit, they must incorporate the design parameters in item 16.3 through item 16.21. Permittees must follow the infiltration prohibition in item 16.14 anytime an infiltration system is designed, including those not required by this permit. [Minn. R. 7090] 16.3 Permittees must design infiltration systems such that pre-existing hydrologic conditions of wetlands in the vicinity are not impacted (e.g., inundation or breaching a perched water table supporting a wetland). [Minn. R. 7090] 16.4 Permittees must not excavate infiltration systems to final grade, or within three (3) feet of final grade, until the contributing drainage area has been constructed and fully stabilized unless they provide rigorous erosion prevention and sediment controls (e.g., diversion berms) to keep sediment and runoff completely away from the infiltration area. [Minn. R. 7090] 16.5 When excavating an infiltration system to within three (3) feet of final grade, permittees must stake off and mark the area so heavy construction vehicles or equipment do not compact the soil in the infiltration area. [Minn. R. 7090] 16.6 Permittees must use a pretreatment device such as a vegetated filter strip, forebay, or water quality inlet (e.g., grit chamber) to remove solids, floating materials, and oil and grease from the runoff, to the maximum extent practicable, before the system routes stormwater to the infiltration system. [Minn. R. 7090] 16.7 Permittees must design infiltration systems to provide a water quality volume (calculated as an instantaneous volume) of one (1) inch of runoff, or one (1) inch minus the volume of stormwater treated by another system on the site, from the net increase of impervious surfaces created by the project. [Minn. R. 7090] 16.8 Permittees must design the infiltration system to discharge all stormwater (including stormwater in excess of the water quality volume) routed to the system through the uppermost soil surface or engineered media surface within 48 hours. Permittees must route additional flows that cannot infiltrate within 48 hours to bypass the system through a stabilized discharge point. [Minn. R. 7090] 16.9 Permittees must provide a means to visually verify the infiltration system is discharging through the soil surface or filter media surface within 48 hours or less. [Minn. R. 7090] 16.10 Permittees must provide at least one soil boring, test pit or infiltrometer test in the location of the infiltration practice for determining infiltration rates. [Minn. R. 7090] 16.11 For design purposes, permittees must divide field measured infiltration rates by 2 as a safety factor or permittees can use soil-boring results with the infiltration rate chart in the Minnesota Stormwater Manual to determine design infiltration rates. When soil borings indicate type A soils, permittees should perform field measurements to verify the rate is not above 8.3 inches per hour. This permit prohibits infiltration if the field measured infiltration rate is above 8.3 inches per hour. [Minn. R. 7090] 16.12 Permittees must employ appropriate on-site testing ensure a minimum of three (3) feet of separation from the seasonally saturated soils (or from bedrock) and the bottom of the proposed infiltration system. [Minn. R. 7090] 16.13 Permittees must design a maintenance access, typically eight (8) feet wide, for the infiltration system. [Minn. R. 7090] 16.14 This permit prohibits permittees from constructing infiltration systems that receive runoff from vehicle fueling and maintenance areas including construction of infiltration systems not required by this permit. [Minn. R. 7090] 16.15 This permit prohibits permittees from constructing infiltration systems where infiltrating stormwater may mobilize high levels of contaminants in soil or groundwater. Permittees must either complete the MPCA's contamination screening checklist or conduct their own assessment to determine the suitability for infiltration. Permittees must retain the checklist or assessment with the SWPPP. For more information and to access the MPCA's "contamination screening checklist" see the Minnesota Stormwater Manual. [Minn. R. 7090] 16.16 This permit prohibits permittees from constructing infiltration systems in areas where soil infiltration rates are field measured at more than 8.3 inches per hour unless they amend soils to slow the infiltration rate below 8.3 inches per hour. [Minn. R. 7090] 16.17 This permit prohibits permittees from constructing infiltration systems in areas with less than three (3) feet of separation distance from the bottom of the infiltration system to the elevation of the seasonally saturated soils or the top of bedrock. [Minn. R. 7090] 16.18 This permit prohibits permittees from constructing infiltration systems in areas of predominately Hydrologic Soil Group type D soils (clay). [Minn. R. 7090] 16.19 This permit prohibits permittees from constructing infiltration systems within a Drinking Water Supply Management Area (DWSMA) as defined in Minn. R. 4720.5100, subp. 13, if the system will be located: a. in an Emergency Response Area (ERA) within a DWSMA classified as having high or very high vulnerability as defined by the Minnesota Department of Health; or b. in an ERA within a DWSMA classified as moderate vulnerability unless a regulated MS4 Permittee performed or approved a higher level of engineering review sufficient to provide a functioning treatment system and to prevent adverse impacts to groundwater; or c. outside of an ERA within a DWSMA classified as having high or very high vulnerability, unless a regulated MS4 Permittee performed or approved a higher level of engineering review sufficient to provide a functioning treatment system and to prevent adverse impacts to groundwater. See "higher level of engineering review" in the Minnesota Stormwater Manual for more information. [Minn. R. 7090] 16.20 This permit prohibits permittees from constructing infiltration systems in areas within 1,000 feet upgradient or 100 feet downgradient of active karst features. [Minn. R. 7090] 16.21 This permit prohibits permittees from constructing infiltration systems in areas that receive runoff from the following industrial facilities not authorized to infiltrate stormwater under the NPDES stormwater permit for industrial activities: automobile salvage yards; scrap recycling and waste recycling facilities; hazardous waste treatment, storage, or disposal facilities; or air transportation facilities that conduct deicing activities. [Minn. R. 7090] 17.1 Filtration Systems. [Minn. R. 7090] 17.2 Filtration options include, but are not limited to: sand filters with underdrains, biofiltration areas, swales using underdrains with impermeable check dams and underground sand filters. If permittees utilize a filtration system to meet the permanent stormwater treatment requirements of this permit, they must comply with items 17.3 through 17.11. [Minn. R. 7090] 17.3 Permittees must not install filter media until they construct and fully stabilize the contributing drainage area unless they provide rigorous erosion prevention and sediment controls (e.g., diversion berms) to keep sediment and runoff completely away from the filtration area. [Minn. R. 7090] 17.4 Permittees must design filtration systems to remove at least 80 percent of TSS. [Minn. R. 7090] 17.5 Permittees must use a pretreatment device such as a vegetated filter strip, small sedimentation basin, water quality inlet, forebay or hydrodynamic separator to remove settleable solids, floating materials, and oils and grease from the runoff, to the maximum extent practicable, before runoff enters the filtration system. [Minn. R. 7090] 17.6 Permittees must design filtration systems to treat a water quality volume (calculated as an instantaneous volume) of one (1) inch of runoff, or one (1) inch minus the volume of stormwater treated by another system on the site, from the net increase of impervious surfaces created by the project. [Minn. R. 7090] 17.7 Permittees must design the filtration system to discharge all stormwater (including stormwater in excess of the water quality volume) routed to the system through the uppermost soil surface or engineered media surface within 48 hours. Additional flows that the system cannot filter within 48 hours must bypass the system or discharge through an emergency overflow. [Minn. R. 7090] 17.8 Permittees must design the filtration system to provide a means to visually verify the system is discharging through the soil surface or filter media within 48 hours. [Minn. R. 7090] 17.9 Permittees must employ appropriate on-site testing to ensure a minimum of three (3) feet of separation between the seasonally saturated soils (or from bedrock) and the bottom of the proposed filtration system. [Minn. R. 7090] 17.10 Permittees must ensure that filtration systems with less than three (3) feet of separation between seasonally saturated soils or from bedrock are constructed with an impermeable liner. [Minn. R. 7090] 17.11 The permittees must design a maintenance access, typically eight (8) feet wide, for the filtration system. [Minn. R. 7090] 18.1 Wet Sedimentation Basin. [Minn. R. 7090] 18.2 Permittees using a wet sedimentation basin to meet the permanent stormwater treatment requirements of this permit must incorporate the design parameters in item 18.3 through 18.10. [Minn. R. 7090] 18.3 Permittees must design the basin to have a permanent volume of 1,800 cubic feet of storage below the outlet pipe for each acre that drains to the basin. The basin's permanent volume must reach a minimum depth of at least three (3) feet and must have no depth greater than 10 feet. Permittees must configure the basin to minimize scour or resuspension of solids. [Minn. R. 7090] 18.4 Permittees must design the basin to provide live storage for a water quality volume (calculated as an instantaneous volume) of one (1) inch of runoff, or one (1) inch minus the volume of stormwater treated by another system on the site, from the net increase in impervious surfaces created by the project. [Minn.R. 7090] 18.5 Permittees must design basin outlets so the water quality volume discharges at no more than 5.66 cubic feet per second (cfs) per acre of surface area of the basin. [Minn. R. 7090] 18.6 Permittees must design basin outlets to prevent short-circuiting and the discharge of floating debris. Basin outlets must have energy dissipation. [Minn. R. 7090] 18.7 Permittees must design the basin to include a stabilized emergency overflow to accommodate storm events in excess of the basin's hydraulic design. [Minn. R. 7090] 18.8 Permittees must design a maintenance access, typically eight (8) feet wide, for the basin. [Minn. R. 7090] 18.9 Permittees must locate basins outside of surface waters and any buffer zone required in item 23.11. Permittees must design basins to avoid draining water from wetlands unless the impact to the wetland complies with the requirements of Section 22. [Minn. R. 7090] 18.10 Permittees must design basins using an impermeable liner if located within active karst terrain. [Minn. R.7090] 19.1 Regional Wet Sedimentation Basins. [Minn. R. 7090] 19.2 When the entire water quality volume cannot be retained onsite, permittees can use or create regional wet sedimentation basins provided they are constructed basins, not a natural wetland or water body, (wetlands used as regional basins must be mitigated for, see Section 22). The owner must ensure the regional basin conforms to all requirements for a wet sedimentation basin as described in items 18.3 through 18.10 and must be large enough to account for the entire area that drains to the regional basin. Permittees must verify that the regional basin will discharge at no more than 5.66 cfs per acre of surface area of the basin and must provide a live storage volume of one inch times all the impervious area draining to the basin. Permittees cannot significantly degrade waterways between the project and the regional basin. The owner must obtain written authorization from the applicable LGU or private entity that owns and maintains the regional basin. [Minn. R. 7090] 20.1 SWPPP Availability. [Minn. R. 7090] 20.2 Permittees must keep the SWPPP, including all changes to it, and inspections and maintenance records at the site during normal working hours by permittees who have operational control of that portion of the site. [Minn. R. 7090] 21.1 Training Requirements. [Minn. R. 7090] 21.2 Permittees must ensure all of the following individuals receive training and the content and extent of the training is commensurate with the individual's job duties and responsibilities with regard to activities covered under this permit: a. Individuals preparing the SWPPP for the project. b. Individuals overseeing implementation of, revising and/or amending the SWPPP and individuals performing inspections for the project. One of these individuals must be available for an onsite inspection within 72 hours upon request by the MPCA. c. Individuals performing or supervising the installation, maintenance and repair of BMPs. [Minn. R. 7090] 21.3 Permittees must ensure individuals identified in Section 21 receive training from local, state, federal agencies, professional organizations, or other entities with expertise in erosion prevention, sediment control, permanent stormwater treatment and the Minnesota NPDES/SDS Construction Stormwater permit. Permittees must ensure these individuals attend a refresher-training course every three (3) years.[Minn. R. 7090] 22.1 Requirements for Discharges to Wetlands. [Minn. R. 7050.0186] 22.2 If the project has any discharges with the potential for significant adverse impacts to a wetland, (e.g., conversion of a natural wetland to a stormwater pond) permittees must demonstrate that the wetland mitigative sequence has been followed in accordance with items 22.3 or 22.4. [Minn. R. 7050.0186] 22.3 If the potential adverse impacts to a wetland on a specific project site are addressed by permits or other approvals from an official statewide program (U.S. Army Corps of Engineers 404 program, Minnesota Department of Natural Resources, or the State of Minnesota Wetland Conservation Act) that are issued specifically for the project and project site, permittees may use the permit or other determination issued by these agencies to show the potential adverse impacts are addressed. For purposes of this permit, deminimus actions are determinations by the permitting agency that address the project impacts, whereas a non-jurisdictional determination does not address project impacts. [Minn. R. 7090] 22.4 If there are impacts from the project not addressed in one of the permits or other determinations discussed in item 22.3 (e.g., permanent inundation or flooding of the wetland, significant degradation of water quality, excavation, filling, draining), permittees must minimize all adverse impacts to wetlands by utilizing appropriate measures. Permittees must use measures based on the nature of the wetland, its vegetative community types and the established hydrology. These measures include in order of preference: a. avoid all significant adverse impacts to wetlands from the project and post-project discharge; b. minimize any unavoidable impacts from the project and post-project discharge; c. provide compensatory mitigation when the permittees determine(s) that there is no reasonable and practicable alternative to having a significant adverse impact on a wetland. For compensatory mitigation, wetland restoration or creation must be of the same type, size and whenever reasonable and practicable in the same watershed as the impacted wetland. [Minn. R. 7050.0186] 23.1 Additional Requirements for Discharges to Special (Prohibited, Restricted, Other) and Impaired Waters. [Minn. R. 7090] 23.2 The BMPs identified for each special or impaired water are required for those areas of the project draining to a discharge point on the project that is within one mile (aerial radius measurement) of special or impaired water and flows to that special or impaired water. [Minn. R. 7090] 23.3 Discharges to the following special waters identified as Prohibited in Minn. R. 7050.0035 Subp. 3 must incorporate the BMPs outlined in items 23.9, 23.10, 23.11, 23.13 and 23.14: a. Boundary Waters Canoe Area Wilderness; Voyageurs National Park; Kettle River from the site of the former dam at Sandstone to its confluence with the Saint Croix River; Rum River from Ogechie Lake spillway to the northernmost confluence with Lake Onamia. b. Those portions of Lake Superior North of latitude 47 degrees, 57 minutes, 13 seconds, East of Hat Point, South of the Minnesota-Ontario boundary, and West of the Minnesota-Michigan boundary; c. Scientific and Natural Areas identified as in Minn. R. 7050.0335 Subp. 3: Boot Lake, Anoka County; Kettle River in sections 15, 22, 23, T 41 N, R 20, Pine County; Pennington Bog, Beltrami County; Purvis Lake-Ober Foundation, Saint Louis County; waters within the borders of Itasca Wilderness Sanctuary, Clearwater County; Wolsfeld Woods, Hennepin County; Green Water Lake, Becker County; Blackdog Preserve, Dakota County; Prairie Bush Clover, Jackson County; Black Lake Bog, Pine County; Pembina Trail Preserve, Polk County; and Falls Creek, Washington County. [Minn. R. 7050.0335, Subp. 3] 23.4 Discharges to the following special waters identified as Restricted must incorporate the BMPs outlined in items 23.9, 23.10 and 23.11: a. Lake Superior, except those portions identified as prohibited in item 23.3.b; b. Mississippi River in those portions from Lake Itasca to the southerly boundary of Morrison County that are included in the Mississippi Headwaters Board comprehensive plan dated February 12, 1981; c. Scenic or Recreational River Segments: Saint Croix River, entire length; Cannon River from northern city limits of Faribault to its confluence with the Mississippi River; North Fork of the Crow River from Lake Koronis outlet to the Meeker-Wright county line; Kettle River from north Pine County line to the site of the former dam at Sandstone; Minnesota River from Lac que Parle dam to Redwood County State Aid Highway 11; Mississippi River from County State Aid Highway 7 bridge in Saint Cloud to northwestern city limits of Anoka; and Rum River from State Highway 27 bridge in Onamia to Madison and Rice streets in Anoka; d. Lake Trout Lakes identified in Minn. R. 7050.0335 including lake trout lakes inside the boundaries of the Boundary Waters Canoe Area Wilderness and Voyageurs National Park; e. Calcareous Fens listed in Minn. R. 7050.0335, Subp. 1. [Minn. R. 7050.0335, Subp. 1] 23.5 Discharges to the Trout Lakes (other special water) identified in Minn. R. 6264.0050, subp. 2 must incorporate the BMPs outlined in items 23.9, 23.10 and 23.11. [Minn. R. 6264.0050, Subp. 2] 23.6 Discharges to the Trout Streams (other special water) listed in Minn. R. 6264.0050, subp. 4 must incorporate the BMPs outlined in items 23.9, 23.10, 23.11 and 23.12. [Minn. R. 6264.0050, Subp. 4] 23.7 Discharges to impaired waters or a water with an USEPA approved TMDL for any of the impairments listed in this item must incorporate the BMPs outlined in items 23.9 and 23.10. Impaired waters are waters identified as impaired under section 303 (d) of the federal Clean Water Act for phosphorus (nutrient eutrophication biological indicators), turbidity, TSS, dissolved oxygen or aquatic biota (fish bioassessment, aquatic plant bioassessment and aquatic macroinvertebrate bioassessment). Terms used for the pollutants or stressors in this item are subject to change. The MPCA will list terminology changes on its construction stormwater website. [Minn. R. 7090] 23.8 Where the additional BMPs in this Section conflict with requirements elsewhere in this permit, items 23.9 through 23.14 take precedence. [Minn. R. 7090] 23.9 Permittees must immediately initiate stabilization of exposed soil areas, as described in item 8.4, and complete the stabilization within seven (7) calendar days after the construction activity in that portion of the site temporarily or permanently ceases. [Minn. R. 7090] 23.10 Permittees must provide a temporary sediment basin as described in Section 14 for common drainage locations that serve an area with five (5) or more acres disturbed at one time. [Minn. R. 7090] 23.11 Permittees must include an undisturbed buffer zone of not less than 100 linear feet from a special water (not including tributaries) and must maintain this buffer zone at all times, both during construction and as a permanent feature post construction, except where a water crossing or other encroachment is necessary to complete the project. Permittees must fully document the circumstance and reasons the buffer encroachment is necessary in the SWPPP and include restoration activities. This permit allows replacement of existing impervious surface within the buffer. Permittees must minimize all potential water quality, scenic and other environmental impacts of these exceptions by the use of additional or redundant (double) BMPs and must document this in the SWPPP for the project. [Minn. R. 7090] 23.12 Permittees must design the permanent stormwater treatment system so the discharge from the project minimizes any increase in the temperature of trout streams resulting from the one (1) and two (2) year 24- hour precipitation events. This includes all tributaries of designated trout streams located within the same Public Land Survey System (PLSS) Section. Permittees must incorporate one or more of the following measures, in order of preference: a. Provide stormwater infiltration or other volume reduction practices as described in item 15.4 and 15.5, to reduce runoff. Infiltration systems must discharge all stormwater routed to the system within 24 hours. b. Provide stormwater filtration as described in Section 17. Filtration systems must discharge all stormwater routed to the system within 24 hours. c. Minimize the discharge from connected impervious surfaces by discharging to vegetated areas, or grass swales, and through the use of other non-structural controls. d. If ponding is used, the design must include an appropriate combination of measures such as shading, vegetated swale discharges or constructed wetland treatment cells that limit temperature increases. The pond must be designed as a dry pond and should draw down in 24 hours or less. e. Other methods that minimize any increase in the temperature of the trout stream. [Minn. R. 7090] 23.13 Permittees must conduct routine site inspections once every three (3) days as described in item 11.2 for projects that discharge to prohibited waters. [Minn. R. 7090] 23.14 If discharges to prohibited waters cannot provide volume reduction equal to one (1) inch times the net increase of impervious surfaces as required in item 15.4 and 15.5, permittees must develop a permanent stormwater treatment system design that will result in no net increase of TSS or phosphorus to the prohibited water. Permittees must keep the plan in the SWPPP for the project. [Minn. R. 7090] 24.1 General Provisions. [Minn. R. 7090] 24.2 If the MPCA determines that an individual permit would more appropriately regulate the construction activity, the MPCA may require an individual permit to continue the construction activity. Coverage under this general permit will remain in effect until the MPCA issues an individual permit. [Minn. R. 7001.0210,Subp. 6] 24.3 If the permittee cannot meet the terms and conditions of this general permit, an owner may request an individual permit, in accordance with Minn. R. 7001.0210 subp. 6. [Minn. R. 7001.0210, Subp. 6] 24.4 Any interested person may petition the MPCA to require an individual NPDES/SDS permit in accordance with 40 CFR 122.28(b)(3). [40 CFR 122.29(b)(3)] 24.5 Permittees must make the SWPPP, including all inspection reports, maintenance records, training records and other information required by this permit, available to federal, state, and local officials within three (3) days upon request for the duration of the permit and for three (3) years following the NOT. [Minn. R.7090] 24.6 Permittees may not assign or transfer this permit except when the transfer occurs in accordance with the applicable requirements of item 3.7 and 3.8. [Minn. R. 7090] 24.7 Nothing in this permit must be construed to relieve the permittees from civil or criminal penalties for noncompliance with the terms and conditions provided herein. Nothing in this permit must be construed to preclude the initiation of any legal action or relieve the permittees from any responsibilities, liabilities, or penalties to which the permittees is/are or may be subject to under Section 311 of the Clean Water Act and Minn. Stat. Sect. 115 and 116, as amended. Permittees are not liable for permit requirements for activities occurring on those portions of a site where the permit has been transferred to another party as required in item 3.7 or the permittees have submitted the NOT as required in Section 4. [Minn. R. 7090] 24.8 The provisions of this permit are severable. If any provision of this permit or the application of any provision of this permit to any circumstances is held invalid, the application of such provision to other circumstances, and the remainder of this permit must not be affected thereby. [Minn. R. 7090] 24.9 The permittees must comply with the provisions of Minn. R. 7001.0150, subp. 3 and Minn. R. 7001.1090, subp. 1(A), 1(B), 1(C), 1(H), 1(I), 1(J), 1(K), and 1(L). [Minn. R. 7090] 24.10 The permittees must allow access as provided in 40 CFR 122.41(i) and Minn. Stat. Sect. 115.04. The permittees must allow representatives of the MPCA or any member, employee or agent thereof, when authorized by it, upon presentation of credentials, to enter upon any property, public or private, for the purpose of obtaining information or examination of records or conducting surveys or investigations. [40 CFR 122.41(i)] 24.11 For the purposes of Minn. R. 7090 and other documents that reference specific sections of this permit, "Stormwater Discharge Design Requirements" corresponds to Sections 5, 6 and 14 through 21; "Construction Activity Requirements" corresponds to Sections 7 through 13; and "Appendix A" corresponds to Sections 22 and 23. [Minn. R. 7090] 173 174 SB-1 175 176 177 RSI MARINE Chanhassen, MN For RSI MARINE STORMWATER MANAGEMENT NARRATIVE & SUMMARY lanuary 27 , 2022 I hereby certify that this plan and report were 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. Joel G. Cooper P.E. License No. 18495 CITY OF CHANHASSEII RECEIVED JAN 2 8 2O2Z CMNHASSEN PI.AI{IIIIIG DEPI 178 The RSI site is located at the northeast corner of Flying Cloud Drive and Great Plains Blvd. The existing site was previously constructed with a building and parking lot for an animal daycare and overnight facility. The site has both hydrologic soil groups B and C on-site. The predominate soil group for the site is hydrologic group C. The site drains from north to south and drains to the Flying Cloud Drive ditch along the north side of the road and eventually drains to across the road and to Rice Lake. The site ranges in elevation from 798 on the north side to 726 on the south side. The site is being proposed to be developed into four (4) buildings of 20,000 square feet each wlth an access off of Flying Cloud Drive in the southeast corner of the property. The proposed development will collect storm water from the building and drive and direct the stormwater into a stormwater pond in the southwest corner of the property through an on-site storm sewer system. The proposed site has been modeled using HydroCAD with Atlas 14 stormwater events for the 1,2,10 and 100-year events. The proposed and existing stormwater run-off rates for the site are as follows: EXISTING PROPOSED 1 YEAR 5.99 c.f.s.5.71 c.f.s Z YEAR 8.37 c.f.s 6.94 c.f.s 1O YEAR 23.65 c.f.s.10.23 c.f.s 1OO YEAR 45.21 c.f.s.18.76 c.f.s The Infiltration for the site wlll be provided with a filtration pond adjacent to the stormwater pond. The proposed site will have 2.79 acj,es ot 72!,532 square feet of impervlous surface. The impervious surface is required to infiltrate the first one inch of stormwater runoff. The proposed infiltration required is 121,532 sq ft x 1 inch/12inch or 10,128 cubic feet. The infiltration volume provided is 10,220 cubic feet. The proposed stormwater plan meets the city stormwater requirements. We have attached the HydrocAD model for your review. lf you have any questions, please call. Sincerely, James R Hlll, lnc Joel G. Cooper P.E President EXISTING CONDITIONS The property is currently sitting empty and not being utilized. The vegetation is a combination of grass and trees. PROPOSED CONDITIONS YEAR 179 Routing Diagram for RSI Marine site Chanhassen,Mn 23953 Prepared by (enter your company name herc]., Ptirled 1127D022 HydroCAD@ 10.00-25 dn 00744 O 2019 HydroCAD Software Solutions LLC (new Subcat) 180 RSI Marine site Chanhassen,Mn 23953 Prepared by {enter your company name here}Ptinled 112712022 Peoe 2HydroCAD@ 10.00-25 s/n 00744 @2019 HydroCAD Software Solutions LLC Area Listing (all nodes) Area (acres) CN Description (subcatchm ent-numbers) 7.860 0.4'10 8.270 74 98 75 >750lo Grass cover, Good, HSG C (1S) Paved parking, HSG C (1S) TOTAL AREA 181 RSI Marine site Chanhassen,Mn 23953 Prepared by {enter your company name here}Prinled 112712022 Paoe 3HydroCAD@ 10.00-25 s/n 00744 @ 201 o HvdroCAD Software Solutions LLc Soil Listing (all nodes) Area (acres)Group Soil Subcatchment Numbers 0.000 0.000 8.270 0 000 0.000 8.270 HSG A HSG B HSG C HSG D Other 1S TOTAL AREA 182 HSG.A (acres) HSG-B (acres) HSG-C (acres) HSG-D Other Total (acres) (acres) (acres) Ground Cover Subcatchment Numbers 0.000 0.000 0.000 0.000 0.000 0.000 7.860 0.410 8.270 0.000 0.000 0.000 0.000 0.000 0.000 7.860 0.410 8.270 >75% Grass cover, Good 1S Paved parking 15 TOTAL AREA RSI Marine site Chanhassen,Mn 23953 Prepared by {enter your company name here} Ptinled 112712022 HvdroCAD@ 10.00-25 s/n 00744 O 2019 HvdroCAD Software Solutions LLC Paqe 4 Ground Covers (all nodes) 183 RSI Marine site Chanhassen,Mn 23953 Prepared by {enter your company name here} MSE 24-hr 3 1 year Rainfall=2.50" Prinled 112712022 Paoe 5HydroCAD@ 10.00-25 s/n 00744 @2019 HydroCAD Software Solutions LLC Time span=0.00-72.00 hrs, dt=0.0'l hrs, 7201 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-lnd method - Pond routing by Dyn-Stor-lnd method Subcatchment 1S: (new Subcat)Runotf Area=8.270 ac 4.96% lmpervious Runoff Depth=0.65" Flow Length=690' Tc='l6.9 min CN=75 Runoff=s.gg cfs 0.448 af Total Runoff Area = 8.270 ac Runoff Volume = 0.448 af Average Runoff Depth = 0.65" 95.04% Pervious = 7.860 ac 4.96% lmpervious = 0.4'10 ac 184 RSI Marine site Chanhassen,Mn 23953 Prepared by {enter your company name here} MSE 24-hr 3 1 year Rainfall=2.50" Ptinted 112712022 Paoe 6HvdroCAD@ 10.00-25 sln 00744 O2019 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: (new Subcat) Runoff = 5.99 cls @ 12.28 hrs, Volume= 0.448 af, Depth= 0.65" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1 year Rainfall=2.50" Area (ac)CN Description 74 98 >75% Grass cover, Good, HSG C Paved oarkino. HSG C 8.270 7.860 0.410 75 Weighted Average 95.04% Pervious Area 4.96% lmpervious Area Tc Length(min) (feeo Slope Velocity Capacity Description (fUft) (fusec) (cfs) 13.3 2.7 0.9 0.2000 0.0138 0.1080 0.34 1.76 2.30 Sheet Flow, Grass: Dense n= 0.24O P2= 2.87" Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.9 690 Total Subcatchment 1S: (new Subcat) Hydrograph ! Runoff '-9 6 5 3 2 Runoff Volume=0148 af MSE 24-hr 3 Are 52 01aRnfallyear a I 72 a0 cuRnoff Flow Length=690' Runoff Depth=0.65" 0 2 4 6 810 1214 16 1A202224262830 32 34 36 38 40 42 44 46 4a 50 52 54 56 58 60 62 64 66 68 70 72 Time (hours) 7.860 0.410 270 290 130 Ill I I l-* il li - --1 i i; CN=75 Tc=16.9 min 185 RSI Marine site Chanhassen,Mn 23953 MSE 24-hr 3 2 year Rainfall=2.87" Prepared by {enter your company name here} Prinled 112712022 HydroCAD@ 1 0.00-25 s/n 00744 A 2Ug HydroCAD Software Solutions LLC Paae 7 Time span=0.00-72.00 hrs, dt=0.01 hrs, 720'1 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-lnd method - Pond routing by Dyn-Stor-lnd method Subcatchment 1S: (new Subcat)Runoff Area=8.270 ac 4.96% lmpervious Runotf Depth=o.88" Flow Length=690' Tc=16.9 min CN=75 Runoff=8.37 cfs 0.604 af Total Runoff Area = 8.270 ac Runoff Volume = 0.604 af Average Runoff Depth = 0.88" 95.04% Pervious = 7.860 ac 4.96% lmpervious = 0.410 ac 186 RSI Marine site Chanhassen,Mn 23953 Prepared by {enter your company name here} MSE 24-hr 3 2 year Rainfall=2.87" Prinled 112712022 Paoe 8HydroCAD@ 10.00-25 s/n 00744 @2019 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: (new Subcat) Runoff = 8.37 ds @ 12.27 hrs, Volume= 0.604 af, Depth= 0.88" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.0G72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2 year Rainfall=2.87" Area (ac) CN Description 7.860 0.410 74 98 >75% Grass cover, Good, HSG C Paved parkinq, HSG C 8.270 7.860 0.410 75 Weighted Average 95.04% Pervious Area 4.96% lmpervious Area Tc (min) Length (feet) Slope Velocity Capacity Description (fvft)(fusec) (cfs) 13.3 2.7 0.9 270 290 130 0.34 1.76 2.30 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Shallow Concentrated Flow, Grassed Watenivay Kv= 15.0 fps Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.9 690 Total Subcatchment 1S: (new Subcat) Hydrograph ; I I 7 6 5 4 3 2 MSE 24-hr 3 2 year Rainfall=2.87" Runoff Area=8.270 ac Runoff Volume=0.604 af Runoff Depth=0.88" Flow Length=690' Tc=16.9 min CN=75 0 0 2 4 6 610 12 14 16 $ 20 22 21 26 2A 30 32 31 36 38 40 42 ,t4 46 48 50 52 54 56 58 60 62 M 66 68 70 72 Tlmo (houB) 0.2000 0.0138 0.1080 l.E;;rt 1 187 RSI Marine site Chanhassen,Mn 23953 Prepared by {enter your company name here} lilSE 24-hr 3 10 year Rainfall=4.87" Ptinted 112712022 Peoe IHvdroCAD@ 10.00-25 s/n 00744 A 2019 HvdroCAD Software Solutions LLC Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-lnd method - Pond routing by Dyn-Stor-lnd method Subcatchment 1S: (new Subcat)Runoff Area=8.270 ac 4.960/o lmpervious Runoff Depth=2.34" Flow Length=690' Tc=16.9min CN=75 Runoff=23.65 cfs 1.616af Total Runoff Area= 8.270 ac Runoff Volume = 1.6'16 af Average Runoff Depth = 2.34" 95.04% Pervious = 7.860 ac 4.96% lmpervious = 0.410 ac 188 Summary for Subcatchment 1S: (new Subcat) Runoff = 23.65 cfs @ 12.26 hrs, Volume= 1.616 af, Depth= 2.34" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 2+hr 3 10 year Rainfall=4.87" Area (ac) CN Description 7.860 0.410 74 98 >75% Grass cover, Good, HSG C Paved parkinq, HSG C 8.270 7.860 0.410 75 Weighted Average 95.04% Pervious Area 4.96% lmpervious Area Tc Length(min) (fee0 (fuft)(fUsec) (cfs) Slope Velocity Capacity Description 13.3 2.7 0.9 270 290 '130 0.2000 0.0138 0.1080 0.34 1.76 2.30 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.9 690 Total Subcatchment 1S: (new Subcat) Hydrograph 24 22 21 20 19 17 16 15 '.9 4 3 2 ,| 0 I I 7 6 5 I 3 2 1 0 MSE 24-hr 3 10 year Rainfall=4.87'! Runoff Area=8.270 ac Runoff Volume=1.616 af Runoff Depth=2.34" Flow Length=690' Tc=16.9 min GN=75 o 2 4 5 810 12 14 161820222426 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 Tlm. (hour3) RSI Marine site Chanhassen,Mn 23953 MSE 24-hr 3 10 year Rainfall=4.87" Prepared by {enter your company name here} Prinled 112712022 HVdToCAD@ 10.00-25 s/n 00744 O2019 HvdroCAD Software Solutions LLC Paqe 10 mr""tfl FFFH i-t_rrTl + ,l,,tllt Er6-ta'1 189 RSI Marine site Chanhassen,Mn 23953 MSE 24-hr 3 100 year Rainfall=7.38" Prepared by {enter your company name here} Prinled 112712022 HydroCAD@ 10.00-25 s/n 00744 A2U9 HydroCAD Software Solutions LLC Paoe 11 Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Storlnd method - Pond routing by Dyn-Stor-lnd method Subcatchment 1S: (new Subcat)Runoff Area=8.270 ac 4.96% lmpervious Runoff Depth=4.49" Flow Length=690' Tc=16.9 min CN=75 Runoff=45.21 cfs 3.092 af Total Runoff Are a = 8.270 ac Runoff Volume = 3.092 af Average Runoff Depth = 4.49" 95.04% Pervious = 7.860 ac 4.96% lmpervious = 0.410 ac 190 RSI Marine site Chanhassen,Mn 23953 Prepared by {enter your company name here} HydroCAD@ 10.00-25 s/n 00744 @2019 HydroCAD Software Solutions LLC MSE 24-hr 3 100 year Rainfall=7.38" Ptinted 112712022 Paqe 12 Summary for Subcatchment 15: (new Subcat) Runoff = 45.21 cfs @ 12.26 hrs, Volume= 3.092 af, Depth= 4.49" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.0G72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 100 year Rainfall=7.38" Area (ac) CN Description 7.860 0.410 74 98 >75% Grass cover, Good, HSG C Paved Darkinq. HSG C 75 Weighted Average 95.04% Pervious Area 4.96% lmpervious Area Tc Length(min) (fee0 Slope Velocity Capacity Description(fuft) (fusec) (cfs) o.u 1.76 2.30 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Shallow Concentrated Flow, Grassed WateMay Kv= 15.0 fps Shallow Goncentrated Flow, Short Grass Pasture Kv= 7.0 fps 50 48 46 44 Subcatchment 1S: (new Subcat) I Runoff 38 36 3,1 32 t., 224t2 20 t8 l6 14 12 't0 I 4 0 1 00 year Rainfall=7.38" Runoff Area=8.270 ac Runoff Volume=3.092 af MSE24-hr 3 CN=75 Runoff Depth=4.49" Flow Length=690' Tc=16.9 min 0 2 4 6 8 10 12 '14 16 18 m 22 24 26 28 30 32 34 36 * 10 4244,16,r8 50 52 54 56 58 60 62 64 66 68 70 72llm. (hou6) 8.270 7.860 0.410 13.3 2.7 0.9 270 290 130 0.2000 0.0138 0.1080 16.9 690 Total Hydrograph t_r I +i MI_T 191 Routing Diagram for Proposed RSI Marine site Chanhassen 23953 Prepared by {enter your @mpany name hete\, Pnnted 112712022 HydroCAD@ 10-0G25 gn 00744 O 2019 HldroCAD Software Solulions LLC pond drainage Direct runoff stormwater pond offsite total Reach Link@A 192 Proposed RSI Marine site Chanhassen 23953 Prepared by {enter your company name here} HydroCAD@ 10.00-25 s/n 00744 @2019 HydroCAD Software Solutions LLC Ptinled 112712022 Paoe 2 Area Listing (all nodes) Area (acres) CN Description (subcatchmenlnumbers) 5.47 0 2.790 8.260 74 98 82 >7570 Grass cover, Good, HSG C (1S,25) Paved parking, HSG C (1S,25) TOTAL AREA 193 Proposed RSI Marine site Chanhassen 23953 Prepared by {enter your company name here} HydroCAD@ 10.00-25 s/n 00744 A 2Ug HydroCAD Software Solutions LLC Ptinted 112712022 Paoe 3 Soil Listing (all nodes) Area (acres) Soil Group Subcatchment Numbers 0.000 0.000 8.260 0.000 0.000 8.260 HSG A HSG B HSG C HSG D Other 1S, 25 TOTAL AREA 194 Proposed RSI Marine site Chanhassen 23953 Prepared by {enter your company name here} HydroCAD@ 10.00-25 s/n 00744 @2019 HydroCAD Software Solutions LLC Printed 112712022 Paqe 4 HSG-A (acres) HSG-B (acres) HSG.C (acres) Ground Covers (all nodes) HSG-D Other Total (acres) (acres) (acres) Ground Cover Subcatchment Numbers 0.000 0.000 0.000 0.000 0.000 0.000 5.470 2.790 8.260 0.000 0.000 0.000 0.000 0.000 0.000 5.47 0 2.790 8.260 >75Yo Grass cover, Good 1S,25 Paved parking 15,25 TOTALAREA 195 Proposed RSI Marine site Chanhassen 23953 Prepared by {enter your company name here} MSE 24-hr 3 1 year Rainfall=2.50' Prinled 112712022 HydroCAD@ 10.00-25 s/n 00744 @2019 HydroCAD Software Solutions LLC Paqe 5 Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-lnd method - Pond routing by Dyn-Stor-lnd method Subcatchment 'lS: pond drainage Runoff Area=7.23o ac 36.790/o lmpervious Runoff Depth=1.06" Flow Length=43s' Tc=15.8min CN=83 Runoff=9.s4 cfs 0.636af Subcatchment 25: Direct runoff Runoff Area=1 .03o ac 12.620/o lmpervious Runoff Depth=0.74" Flow Length=150' f c=12.2 min CN=77 RunofF1.03 cfs 0.064 af Pond 1P: stormwater pond Peak Elev=728.05' Storage=31,789 cf lnflow=9.54 cfs 0.636 af Outflow=s.2s cfs 0.636 af Link 3L: offsite total lnflor,=S.7l cfs 0.700af Primary=5.71 cfs 0.700 af Total Runoff Area = 8.260 ac Runoff Volume = 0.700 af Average Runoff Depth = 1.02" 66.22% Pervious = 5.470 ac 33.78% lmpervious = 2.790 ac 196 Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 1 year Rainfall=2.50" Prepared by {enter your company name here} Prinled 112712022 HydroCAD@ 10.00-25 s/n 00744 A 20'19 HydroCAD Software Solutions LLC Paqe6 Summary for Subcatchment'lS: pond drainage Runoff = 9.54 ds @ 12.25 hrs, Volume= 0.636 af, Depth= 1.06" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.0G.72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1 year Rainfall=2.50" Area (ac) CN De-sAfiplloD 2.660 4.570 Paved parking, HSG C98 74 >757o Grass cover Good HSG C Tc Length(min) lfeet) 83 Weighted Average 63.21% Pervious Area 36.79% lmpervious Area Slope Velocity Capacity Description(fuft) (fusec) (cfs) 6.6 0.9 7.9 0.4 145 115 '100 75 o.37 2.12 o.21 3.52 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Shallow Concentrated Flow, Paved Kv= 20.3 fps 15.8 435 Total Subcatchment 1S: pond drainage Hydrograph 8 7 6 5 10 3 2 MSE 24-hr 3 1 year Rainfall=2.50" Runoff Area=7.230 ac Runoff Volume=0.636 af Runoff Depth=l.06" FIow Length=435' Tc=l5.8 min CN=83 0 o 2 4 6 A10 12 14 16 1A 20 22 24 26 2A 30 32 34 36 38 40 42 44 46 4A 50 52 54 56 58 60 62 64 66 68 70 72 Tlm. (hourr) 7.230 4.570 2.660 0.3300 0.0200 0.1000 0.0300 I r Rr""ffl '-9II r1 t--r--# 1 197 Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 1 year Rainfall=2.50" Prepared by {enter your company name here} Ptinled 112712022 HydroCAD@ 10.00-25 s/n 00744 @2019 HydroCAD Software Solutions LLC PaAe 7 Summary for Subcatchment 25: Direct runoff Runoff = 1.03 ds @ 12.2'l hrs, Volume= 0.06,4 af, Depth= 0.74" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.0G.72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1 year Rainfall=2.50" Area (ac) CN Description 98 74 >757o Grass cover Good HSG C Paved parking, HSG C 77 Weighted Average 87.38% Pervious Area 12.62% lmpervious Area Tc Length(min) lfeet) Slope Velocity Capacity Description(fuft) (fusec) (cfs) 't0.3 1.9 0.16 0.43 Sheet Flow, Grass: Short Sheet Flow, Grass: Short n= 0.150 n= 0.150 P2= 2.87" P2= 2.87" 12.2 150 Total Subcatchment 25: Direct runoff Hydrograph ! Runoff ] -9l! MSE 24-hr 3 'l year Rainfall=2.50" Runoff Area=1.030 ac Runoff Volume=0.064 af Runoff Depth=O.74" Flow Length=150' Tc=12.2 min CN=77 0 0 2,{ 6 810 1214 16 18 20 22 24 26 2A 30 32 U 36 38 10 1214 46 t1850 5254 56586062 6.66647072 Tlmo (houo) 0.130 0.900 1.030 0.900 0.130 '100 0.0200 50 0.3300 198 Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 1 year Rainfall=2.50" Prepared by {enter your company name here} Prinled 112712022 HydroCAD@ 10.00-25 sln 00744 @2019 HydroCAD Software Solutions LLC Paqe 8 Summary for Pond 'lP: stormwater pond lnflow Area = lnflow Outflow Primary Routing by Dyn-Stor-lnd method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Starting Elev= 727.50' Surf.Area= 13,M0 sf Storage= 24,288 d Peak Elev= 728.05'@ 12.45 hrs Surf.Area= '14,020 sf Storage= 31,789 cf Plug-Flow detention time= 564.5 min calculated for 0.079 af ('12% of inflow) Center-of-Mass det. time= 41 .3 min ( 866.5 - 825.2 ) 7.230 ac, 36.79% lmpervious, lnflow Depth = 1 .06" for 1 year event 9.54 cfs @ 12.25 hts, Volume= 0.636 af 5.25 cfs @ 12.45 hrs, Volume= 0.636 af, Atten= 45ol0, Lag= 12.2 ^ n 5.25 cfs @ 12.45 hrs, Volume= 0.636 af (7,501 cf above start) Volume lnvert Avail.Storage Storage Description #1 722.00',79,976 cf Custom Stage Data (Prismatic) Listed below (Recalc) lnc.Store Cum.Store(cubic-feet) (cubic-feet) Elevation (feet) Surf.Area (sq-ft) Device Routinq 0 4,4U 6,960 12,8U 6,744 30,976 17,968 lnvert Outlet Devices 1,616 2,U8 4,112 '13,040 13,936 17,O40 18,896 0 4,4U 11,424 24,288 31,O32 62,008 79.976 727.50' 725.50', Device 1 Device 2 18.0" Round Culvert L= 25.0' RCP, groove end projecting, Ke= 0.200 lnlet / Outlet lnveft= 724.20' I 723.95' S= 0.01 00'/ Cc= 0.900 n= 0.013, Flow Area= 1 .77 sf 4.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 18.0" Round Culvert L= 30.0' RCP, mitered to conform to fill, Ke= 0.700 lnlet / Outlet lnvert= 725.50' I 725.50' S= 0.0000 '/ Cc= 0.900 n= 0.013, Flow Area= 1 .77 sf 48.0" Horiz Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 #3 #4 Device 1 730.50' mary OutFlow Max=5.25 cfs @ 12.45 hrs HW=728.05' TW=0.00' (Dynamic Tailwater) =Culvert (Passes 5.25 cfs of 17.78 cfs potential flow) harp-Crested Rectangular Weir (Weir Controls 5.25 cfs @ 2.43 fps) utvert (Passes 5.25 cfs of 5.59 cfs potential flow) ce/Grate ( Controls 0.00 cfs) 722.00 724.OO 726.00 727.50 728.00 730.00 731.00 #1 Primary 724.20' 199 Proposed RSI Marine site Chanhassen 23953 Prepared by {enter your company name here} HvdroCAD@ 10.00-25 sln 00744 O 2019 HydroCAD Software Solutions LLC MSE 24-hr 3 1 year Rainfall=2.50" Printed 112712022 Paqe 9 Pond 1P: stormwater pond Hydrograph O 216 810121416 18202221 243/) 323,{363840 124161850525156 5a606264 666a7072 Tlm. (hour.) ! lnflowI Primary t 7 6 5 3 2 0 lnflow Area=7230 ac Peak Elev=728.05' Storage=31,789 cfrf-! ^. l L-l ll 200 Elevation (feet) Su rface (sq-ft) Storage (cubic-feet) Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 1 year Rainfall=2.50" Prepared by {enter your company name here} Printed 112712022 HydroCAD@ 10.00-25 s/n 00744 @2019 HydroCAD Software Solutions LLC Paqe 10 Stage-Area-Storage for Pond 1P: stormwater pond Elevation (feet) Surface Storage(sqjt) (cubicjeet) 722.00 722.10 722.20 722.30 722.40 722.50 722.60 722.70 722.80 722.90 723.O0 723.10 723.20 723.30 723.40 723.50 t 23_bu 723.70 723.80 723.90 724.00 724.10 724.20 724.30 724.40 724.50 724.60 724.70 724.80 724.90 725.00 725.10 725.20 725.30 725.40 725.50 725.60 725.70 725.80 725.90 726.O0 726.10 726.20 726.30 726.40 726.50 726.60 726.7 0 726.80 726.90 727 .00 727 .10 '1,616 1 ,678 1 ,739 1,801 1 ,862 1 ,924 1 ,986 2,047 2,109 2,170 2,232 2,294 2,355 2,417 2,478 2,540 2,602 2,663 2,725 2,786 2,848 2,g',t 1 2,974 3,038 3,101 3,164 3,227 e ,)on 3,354 3,417 3,480 3,543 3,606 3,670 3,733 3,796 3,859 3,922 3,986 4,049 4,112 4,707 5,302 5,898 6,493 7,088 7,683 8,278 8,874 9,469 10,064 10,659 16s 336 513 AOA 885 1,080 1,282 1,490 1,704 1 ,924 2,150 2,383 2,621 2,866 3,117 3,374 3,637 3,907 4,182 4,464 4,752 5,046 5,U7 5,654 5,967 6,287 6,612 6,945 7 ,283 I ,OZA 7 ,979 8,337 8,700 9,071 9,447 9,830 10,219 10,614 11,016 11,424 'l'1,865 12,365 12,925 13,U5 14,224 14,963 '15,761 16,618 17 ,535 18,512 19,548 727 .20 727 .30 727 .40 727 .50 727 .60 727 .70 727 .80 727 .90 728.00 728.10 728.20 728.30 728.40 728.50 728.60 728.70 728.80 728.90 729.00 729.10 729.20 729.30 729.40 729.50 729.60 729.70 729.80 729.90 730.00 730.10 730.20 730.30 730.40 730.50 730.60 730.70 730.80 730.90 73'1.00 11,254 1 1,850 12,445 13,040 13,219 13,398 13,578 13,7 57 13,936 14,091 14,246 14,402 14,557 14,712 14,867 15,022 15,178 15,333 15,488 15,643 15,798 15,954 16,109 16,264 16,419 16,57 4 16,730 16,885 17 ,040 17 ,226 17 ,411 17,597 17,782 17,968 18,154 18,339 18,52s 18,710 18,896 20,644 21,799 23,014 24,288 25,601 26,932 28,281 29,U7 3't ,032 32,433 33,850 35,283 36,731 38,194 39,673 41 ,167 42,677 44,203 45,744 47 ,301 48,873 50,460 52,063 53,682 55,316 56,966 58,631 60,312 62,008 63,721 65,453 67 ,204 68,972 70,760 72,566 74,391 76,234 78,096 79,976 201 Summary for Link 3L: offsite total lnflow Area = 8.260 ac, 33.78% lmpervious, lnflow Depth = 1.02" for 1 year eventlnflow = 5.71 cfs @ 12.43 hrs, Volume= 0.700 af Primary = 5.71 cfs @ 12.43 hrs, Volume= 0.700 af, Atten= 0%, Lag= g.g , n Primary outflow = lnflow, Time Span= 0.0G72.00 hrs, dt= 0.01 hrs Link 3L: offsite total Hydrograph I lnflow I Pri,nary 0 2 4 6 81012 1416 1Am2224 2AN32 3,( 36 38 40 42 tl4 4a 48 50 52 54 56 58 60 8264666a70 72 Tlmo (hou6) . 6 5 3 2 Proposed RSI Marine site Chanhassen 23953 lvlSE 24-hr 3 1 year Rainfall=2.50" Prepared by {enter your company name here} Printed 112712022 HydroCAD@ 10.00-25 s/n 00744 O 2019 HvdroCAD Software Solutions LLC Paoe 11 1 rrttl lnflow Area=8.260 ac 202 Time span=0.0G72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-lnd method - Pond routing by Dyn-Stor-lnd method Subcatchment 1S: pond drainage Runoff Area=7.230 ac 36.790lo lmpervious Runoff Depth=1.34" Flow Length=43s' Tc=15.8min CN=83 Runoff=12.21 cfs 0.809af Subcatchment 25: Direct runoff Runoff Area=1 .030 ac 12.620/o lmpervious Runoff Depth=o.98" Flow Length=150' f c=12.2 min CN=77 Runoff=1.40 cfs 0.084 af Pond lP: stormwater pond Peak Elev=728.20' Storage=33,894 ct l^llow=12.21 cfs 0.809 af Outflow=6.30 cfs 0.809 af Link 3L: offsite total lnflow=6.94 cfs 0.893 af Primary=6.94 cfs 0.893 af Total Runoff Area = 8.260 ac Runoff Volume = 0.893 af Average Runoff Depth = 1.30" 66.22% Pervious = 5.470 ac 33.78% lmpervious = 2.790 ac Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 2 year Rainfall=2.87" Prepared by {enter your company name here} Ptinled 112712022 HvdroCAD@ 10.00-25 s/n 00744 02019 HydroCAD Software Solutions LLC Paoe 12 203 Summary for Subcatchment 1S: pond drainage Runoff = 12.21 cls @ 12.25 hrs, Volume= 0.809 af, Depth= 1.34" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2 yeat Rainlall=2.87" Area (ac) CN Description Tc Length(min) (feet) Slope Velocity Capacity Description(fuft) (tusec) (cfs) 6.6 0.9 -70 o.4 145 115 100 75 o.37 2.12 o.21 3.52 0.3300 0.0200 0.1000 0.0300 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Shallow Concentrated Flow, Paved Kv= 20.3 fps 15.8 435 Total Subcatchment 1S: pond drainage Hyd.ograph ]! 13 12 1'l 10 I I 7 6 5 4 3 2 I 0 Ru -r-----+---t l tlI l R ri u miTc=15. o 2 4 6 A10 12 14 16 1A 20 22 24 26 2A 3n 32 34 36 3a 40 42 44 46 4A 50 52 54 56 58 60 62 64 66 68 70 72 Time (houB) Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 2 year Rainfall=2.87" Prepared by {enter your company name here} Prinled 112712022 HvdroCAD@ 10.00-25 s/n 00744 O2019 HvdroCAD Software Solutions LLC Paqe 13 2.660 98 Paved parking, HSG C4.570 74 >75% Grass cover, Good, HSG C 7.230 4.570 2.660 83 Weighted Average 63.21% Pervious Area 36.79% lmpervious Area Ir il;;rril I ffii + I i-tr1 -rt-T--I I _t |-1H II ---f--r---l---t---a--- 204 Summary for Subcatchment 25: Direct runoff Runoff = 1.4O cfs @ 12.21 hrs, Volume= 0.084 af, Depth= 0.98" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2 year Rainfall=2.87" Area (ac) CN Description 0.1 30 0.900 >75% Grass cover Good HSG C Paved parking, HSG C 1.030 0.900 0.1 30 77 Weighted Average 87.38% Pervious Area 12.62% lmpervious Area Tc Length(min) (fee0 Slope Velocity Capacity Description(fuft) (fUsec) (cfs) 10.3 1.9 100 0.0200 50 0.3300 Sheet Flow, Grass: Short Sheet Flow, Grass: Short n= 0.150 n= 0.150 P2= 2.87" P2= 2.87" 12.2 150 Total Subcatchment 25: Direct runoff Hydrograph ! Runofi ! Runoff Depth=0.98" Flow Length=150' Tc='12.2 min CN=77 Runoff Volume=0.084 af MSE 24-hr 3 2year Rainfall=2.87'! Runoff Area=l.030 ac 0 o 2 4 6 A 10 1214 16 18202224?62A303234 3a40 4244 46 48 s0 52 54 56 58 60 62 64 66 68 70 72 Tnie (hours) Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 2 year Rainfall=2.87" Prepared by {enter your company name here} Ptinted 112712022 HvdroCAD@ '10.00-25 s/n 00744 O2019 HydroCAD Software Solutions LLC Paqe 14 OR 74 0. '16 0.43 1 205 Proposed RSI Marine site Chanhassen 23953 Prepared by {enter your company name here} HydroCAD@ '10.00-25 sin 00744 @ 2019 HydroCAD Software Solutions LLC MSE 24-hr 3 2 year Rainfall=2.87" Printed 112712O22 Paqe 15 lnflow Area = lnflow Outflow Primary Routing by Dyn-Stor-lnd method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Starting Elev= 727.50' Surf.Area= '13,040 sf Storage= 24,288 d Peak Elev= 728.20' @ 12.46 hrs Surf.Area= 14,251 sf Storage= 33,894 cf Plug-Flow detention time= 339.1 min calculated for 0.251 af (31% of inflow) Center-of-Mass det. time= 38.6 min ( 858.7 - 820.1 ) Volume lnvert Avail.QlqAge 9loJage Description Summary for Pond lP: stormwater pond 7.23O ac, 36.79% lmpervious, lnflow Depth = 1.34" for 2 year event 12.21 ds @ 12.25 hrs, Volume= 0.809 af 6.30 cfs @ 12.46 hrs, Volume= 0.809 af, Atten= 48%, Lag= 13., ,'n 6.30 cfs @ 12.46 hrs, Volume= 0.809 af (9,606 cf above start) lnc.Store Cum.Store(cubic-feet) (cubic-feet) Elevation (feet) Surf.Area (sq-ft) Device Routing 0 4,464 6,960 12,8U 6,744 30,976 17,968 lnvert Outlet Devices 1,616 2,848 4.112 13,040 13,936 17,O40 18,896 0 4,464 11,424 24,288 31,032 62,008 79,976 #1 Primary 724.20'18.0" Round Culvert L= 25.0' RCP, groove end projecting, Ke= 0.200 lnlet i Outlet lnveft= 724.20' I 723.95' S= 0.0100 '/ Cc= 0.900 n= 0.013, Flow Area= 1 .77 sf 4.0' long Sharp4rested Rectangular Weir 2 End Contraction(s) 18.0" Round Culvert L= 30.0' RCP, mitered to conform to fill, Ke= 0.700 lnlet / Outlet lnvert= 725.50' / 725.50' S= 0.0000 '/ Cc= 0.900 n= 0.013, Flow Area= 1 .77 sf 48.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 #3 #4 Device 1 Device 2 727.50', 725.50'. Device 1 730.s0' rimary OutFlow Max=6.29 cfs @ 12.46 hrs HW=728.20' TW=0.00' (Dynamic Tailwater) =Culvert (Passes 6.29 cfs of 18.28 cfs potential flow) Sharp-Crested Rectangular Weir (Passes 6.29 cfs ol 7.44 cfs potential flow) ulvert (lnlet Controls 6.29 cfs @ 3.56 fps) rifice/Grate ( Controls 0.00 cfs) #1 722.00' 79,976 cf Gustom Stage Data (Prismatic) Listed below (Recalc) 722.OO 724.00 726.00 727.50 728.O0 730.00 731.00 206 Proposed RSI Marine site Chanhassen 23953 Prepared by {enter your company name here} HydroCAD@ 10.00-25 s/n 00744 @ 2019 HydroCAD Software Solutions LLC MSE 24-hr 3 2 year Rainfall=2.87" Printed 112712022 Paoe 16 ' Pond 1P: stormwater pond Hydrograph 0 2 4 6 810121416 18202224262830 3234363840 4244464A505254 56 58 60 62 64 66 6a 70 72 Time (houE) 7 I lnflowI P.imaryI:l.t2 2 t-I lf llrElaIEI/:t , ICsrfoC l€3 3 t, o 4 (;f I- I III ilT tIIr rI 11 lnflow Area=7.230 ac +-T 207 Elevation (feet) Surface (sq-ft) Storage (cubicJeet) Proposed RSI Marine site Chanhassen 23953 tilSE 24-hr 3 2 year Rainfall=2.87" Prepared by {enter your company name here} Printed 112712022 HydroCAD@ '10.00-25 s/n 00744 @2019 HydroCAD Software Solutions LLC Paoe 17 Stage-Area-Storage for Pond 1P: stormwater pond Elevation (feet) Surface Storage(sq-ft) (cubic-feet) 722.00 722.10 722.20 722.30 722.40 722.50 722.60 722.70 722.80 722.90 723.00 723.10 723.20 723.30 723.40 723.50 723.60 723.7 0 723.80 723.90 724.00 724.'tO 724.20 724.30 724.40 724.50 724.60 724.70 724.80 724.90 725.00 725.10 725.20 725.30 725.40 725.50 725.60 725.70 725.80 725.90 726.00 726.10 726.20 726.30 726.40 726.50 726.60 726.70 726.80 726.90 727 .00 727 .10 1,616 1,678 1 ,739 1,801 I ,OOZ 1,924 1,986 2,047 2,109 2,170 2,232 2,294 2,355 2,417 2,478 2,540 2,602 Z,bOJ 2,725 2,786 2,848 2,911 2,974 3,038 3,101 3,164 3,227 3,290 3,354 3,417 3,480 3,543 3,606 3,670 3,733 3,796 3,859 3,922 3,986 4,049 4,112 4,707 5,302 5,898 6,493 7,088 /,bd5 8,278 8,874 9,469 10,064 10,659 0.165 336 513 696 885 1,080 1 ,282 1 ,490 I ,704 1 ,924 2,150 2,383 2,621 2,866 3,',\17 3,374 3,637 3,907 4,182 4,464 4,752 5,046 5,347 5,654 5,967 6,287 6,612 6,945 7 ,283 7 ,628 7 ,979 8,337 8,700 I,O71 I,447 9,830 10,219 '10,614 11,016 11,424 1'1,865 12,365 12,925 13,545 14,224 14,963 '15,761 16,618 17,535 18,512 19,548 727 .20 727 .30 727 .40 727 .50 727 .60 727 .70 727 .80 727 .90 728.00 728.10 728.20 728.30 728.40 728.50 728.60 728.70 728.80 728.90 729.00 729.10 729.20 729.30 729.40 729.50 729.60 729.70 729.80 729.90 730.00 730.10 730.20 730 30 730.40 730.50 730.60 730.70 730.80 730.90 731.00 20,644 21 ,799 23,O14 24,288 25,601 26,932 28,281 29,647 31 ,032 32,433 33,850 35,283 36,731 38,194 39,673 41 ,167 42,677 44,203 45,744 47 ,301 48,873 50,460 52,063 s3,682 s5,316 56,966 58,631 60,312 62,008 63,721 65,453 67 ,204 68,972 70,760 72,566 74,391 76,234 78,096 79,976 11,254 1 1,850 12,445 13,040 13,219 13,398 '13,578 13,757 13,936 14,091 14,246 14,402 14,557 14,712 14,867 15,022 15,17I 15,333 15,488 15,643 15,798 15,954 16,'109 16,264 16,419 16,574 16,730 16,885 17 ,040 17 ,226 17 ,411 17,597 17 ,782 17,968 18,154 18,339 18,525 18,710 '18,896 208 Proposed RSI Marine site Chanhassen 23953 Prepared by {enter your company name here} MSE 24-hr 3 2 year Rainfall=2.87" Ptinled 112712022 Paoe 1 8HydroCAD@ 10.00-25 s/n 00744 @2019 HydroCAD Software Solutions LLC lnflow Area = lnflow Primary Primary outflow = lnflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Link 3L: offsite total Hydrograph 8.260 ac, 33.78% lmpervious, lnflow Depth = 1.30" for 2 year event 6.94 cfs @ 12.38 hrs, Volume= 0.893 af 6.94 cfs @ 12.38 hrs, Volume= 0.893 af, Atten= 0%, Lag= 9.6 , n I lniow! Pnmary t 7 6 5 3 2 0 2 4 6 810 12 141618202221 2A3O32U 3630a04244,1648 5052 54s65860 626466687072 Tlm. (hour!) @E Summary for Link 3L: offsite total 1 lnflow Area=8.260 ac i----l_-l ---+ t - % Z 2 209 Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 10 year Rainfall=4.27" Prepared by {enter your company name here} Ptinled 112712022 HydroCADrO 10.00-25 s/n 00744 AzUg HydroCAD Software Solutions LLC Paqe 19 Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-lnd method - Pond routing by Dyn-Storlnd method Subcatchment 15: pond drainage Runoff Area=7.230 ac 36.79% lmpervious Runoff Depth=2.52" Flow Length=435' Tc=15.8 min CN=83 Runoff=22.99 cfs 1.520af Subcatchment 25: Direct runoff RunoffArea=1.030 ac 12.620/o lmpervious Runoff Depth=2.03" Flow Length=150' Tc=12.2 min CN=77 Runoff=2 .97 cls 0.174 aI Pond 1P: stormwater pond Peak Elev=728.95' Storage=44,917 cf lnflow=22.99 cfs 1.520af Outflow=g.03 cfs 1 .520 af Link 3L: offsite total lnflow=10.23 cfs 1.693 af Primary=19 23 cfs 1'693 af Total Runoff Area = 8.260 ac Runoff Volume = 1.693 af Average Runoff Depth = 2.46" 66.22% Pervious = 5.470 ac 33.78olo lmpervious = 2.790 ac 210 Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 10 year Rainfall=4.27" Prepared by {enter your company name here} Prinled 112712022 HydroCAD@ 10.00-25 s/n 00744 02019 HfdroQAqsoft\ryeEsq&!!9llS LLC Paoe 20 Summary for Subcatchment'lS: pond drainage Runoff = 22.99 cls @ 12.24 hrs, Volume= '1.520 af , Depth= 2.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.0G72.00 hrs, dt= 0.0'l hrs MSE 24-hr 3 10 yeat Rainfall4.27" Area (ac) CN Description Tc (min) Length (feet) Slope Velocity Capacity Description(fuft) (fusec) (cfs) 6.6 0.9 7.9 o.4 145 115 100 75 0.3300 0.0200 0.1000 0.0300 0.37 2.12 0.21 3.52 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Shallow Concentrated Flou Paved Kv= 20.3 fps 25 24 22 21 20 19 18 17 15.8 435 Total Subcatchment 1S: pond drainage Hydrograph I Runoff 5 4 3 2 I 0I 8 7 6 5 4 3 2 1 0 GN=83 MSE 24-hr 3 10 year Rainfall=4.27" Runoff Area=7.230 ac Runoff Volume=1;520 af Runoff Depth=2.52" Flow Length=435' Tc=15.8 min 0 2 4 6 810 12 14 16 1A 20 22 24 X 2A 30 32 34 36 38 40 42 44 46 4A 50 52 54 56 58 60 62 64 66 68 70 72 Tlm€ (hou.!) 2.660 98 Paved parking, HSG C4.570 74 >75olo Grass cover. Good. HSG C 7.230 83 Weighted Average4.570 63.21% Pervious Area2.660 36.79% lmpervious Area '-9 ltrt t---f--T---a---t I _ffi J t1i t---t-I-i---l---]---- t -ffi -T.TTTTTTTTT 211 Proposed RSI Marine site Chanhassen 23953 Prepared by {enter your company name here} HydroCAD@ 10.00-25 s/n 00744 A zxg HydroCAD Software Solutions LLC MSE 24-hr 3 10 year Rainfall=4.27" Printed 112712022 Paqe 21 Summary for Subcatchment 25: Direct runoff Runoff = 2.97 cfs @ 12.21 hrs, Volume= 0.174 af, Depth= 2.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 10 year Rainfall=4.27" Area (ac) CN Description 1.030 0.900 0130 Tc Length(min) (fee0 Slope Velocity Capacity Description(fuft) (fusec) (cfs) 10.3 1.9 0.16 0.43 100 50 0.0200 0.3300 Sheet Flow, Grass: Short Sheet Flow, Grass: Short n= 0.150 n= 0.150 P2= 2.87" P2= 2.87" 12.2 150 Total 3 2 '-9 MSE 24-hr 3 10 year Rainfal!=4.27" Runoff Area=1.030 ac Runoff Volume=0.174 af Runoff Depth=2.03" Flow Length=150' Tc=12.2 min CN=77 0 0 2 4 6 8 1012't1 16 18 20 22 24 26 28 30 32 U 36 38 40 42 ,14 46 48 50 52 54 56 58 60 62 64 66 68 70 72 Tlm. (hours) 0.130 0 900 98 Paved parking, HSG C74 >75% Grass cover, Good, HSG C 77 Weighted Average 87.38% Pervious Area 12.62% lmpervious Area Subcatchment 25: Direct runoff Hydrograph li R,""til 212 Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 10 year Rainfall=4.27" Prepared by {enter your company name here} Ptinted 112712022 HvdroCAD@ 10,0Q-2E S/n QQ744 O2019 HydroCAD Software Solutions LLC Paae 22 Summary for Pond 1P: stormwater pond 7 .230 ac, 36.79% lmpervious, lnflow Depth = 2.52" for 10 year event 22.99 cfs @ 12.24 hrs, Volume= 1.520 af 9.03 cfs @ 12.53 hrs, Volume= 1.520 af, Atten= 6'l%, Lag= 17.1 , n 9.03 cfs @ 12.53 hrs, Volume= 1.520 al Routing by Dyn-Stor-lnd melhod, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Starting Elev= 727.50' Surf.Area= 13,040 sf Storage= 24,288 d Peak Elev= 728.95' @ '12.53 hrs Surf.Area= 15,405 sf Storage= M,917 cl (20,629 cf above start) Plug-Flow detention time= 176.7 min calculated for 0.962 af (63% of inflow) Center-of-Mass det. time= 37.6 min ( 845.0 - 807.4 ) Volume lnvert Avail.Storage Storage Description #1 722.00',79,976 cf Custom Stage Data (Prismatic) Lisled below (Recalc) lnc.Store Cum.Store(cubic-feet) (cubic-feet) Elevation (feeo Surf.Area (sq-ft) 722.00 724.OO 726.00 727.50 728.00 730.00 731.00 Device Routinq 1,616 2,U8 4,112 13,040 13,936 17,O40 18,896 4,464 6,960 12,864 6,7M 30,976 17,968 0 4,4U 11,424 24,288 31,032 62,008 79,976 #1 Primary 724.20' 727.50' 725.50', Device 1 Device 2 18.0" Round Culvert L= 25.0' RCP, groove end poecting, Ke= 0.200 lnlet / Outlet lnveft= 724.20' I 723.95' S= 0.0100 '/ Cc= 0.900 n= 0.013, Flow Area= 1.77 sf 4.0' long Sharp4rested Rectangular Weir 2 End Contraction(s) 18.0" Round Culvert L= 30.0' RCP, mitered to conform to fill, Ke= 0.700 lnlet / Outlet lnvert= 725.50' / 725.50' S= 0.0000 '/ Cc= 0.900 n= 0.013, Flow Area= 1 .77 sf 48.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 #3 #4 Device 1 730.50' frimary OutFlow Max=9.03 cfs @ 12.53 hrs HW=728.95' TW=0.00' (Dynamic Tailwaler)t-1=Culvert (Passes 9.03 cfs of 20.60 cfs potential flow) ?-?=Sharp'-crested Rectangular Weir (Passes 9.03 cfs of 21 .1 1 cfs potential flow) I t-3=Gulvert (lnlet Controls 9.03 cfs @ 5.1 1 fps) l-4=orifice/Grate ( Controls 0.00 cfs) lnflow Area = lnflow Outflow Primary lnvert Outlet Devices 213 Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 10 year Rainfall=4.27" Prepared by {enter your company name here} Prinled 112712O22 HydroCAD@ 10.00-25 s/n 00744 @2019 HydroCAD Software Solutions LLC Paqe 23 Pond 1P: stormwater pond Hydrograph '-9 0 2 4 6 A 101214 16 1A202224262A30 3234363840 4244464A505254 56 58 60 62 64 66 68 70 72 Time (hours) II lnrlow !! I lr rfl(,\V I \t e a r z 3 u a c {lFIeI ti )t I) )I)i' 'fCI-A A C I ,|., I \ ^ KI +T I r I ! l rltllrl:t!:lrlrli ij +_i l1 -l 214 Elevation (feet) Su rface (sq-ft) Storage (cubic-feet) Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 10 year Rainfall=4.27" Prepared by {enter your company name here} Printed 112712022 HydroCAD@ 10.00-25 s/n 00744 42019 HydroCAD Software Solutions LLC Paoe 24 Stage-Area-Storage for Pond 1P: stormwater pond Elevation (feet) Surface Storage(sqjt) (cubic-feet) 722.00 722.10 722.20 722.30 722.40 722.50 722.60 722.70 722.80 722.90 723.00 723.10 723.20 723.30 723.40 723.50 723.60 723.70 723.80 723.90 724.00 724.10 724.20 724.30 724.40 724.50 724.60 724.70 724.80 724.90 725.00 725.10 725.20 725.30 725.40 725.50 725.60 725.70 725.80 725.90 726.00 726.10 726.20 726.30 726.40 726.50 726.60 726.70 726.80 726.90 727 .00 727 .10 1,616 1,678 1,739 1,801 1,862 1,924 1,986 2,047 2,109 2,170 2,232 2,294 2,355 2,417 2,478 2,540 2,602 2,663 2,725 2,786 2,848 2,911 2,974 3,038 3,101 3,164 3,227 3,290 3,354 3,417 3,480 3,543 3,606 3,670 3,733 3,796 3,859 3,922 3,986 4,049 4,112 4,707 5,302 5,898 6,493 7,088 7,683 8,278 8,874 9,469 10,064 10,659 0 165 336 696 88s 1,080 1 ,282 1 ,490 1 ,704 1,924 2,150 2,383 2,621 2,866 3,117 3,374 3,637 3,907 4,182 4,464 4,752 5,046 5,347 5,654 s,967 6,287 6,612 6,945 7 ,283 7 ,628 7 ,979 8,337 8,700 9,071 I,447 9,830 10,219 10,614 11,016 11,424 11,865 12,365 12,925 13,545 14,224 14,963 't5,761 16,618 17,535 18,512 19,548 727.20 727 .30 727 .40 727 .50 727 .60 727 .70 727 .80 727 .90 728.00 728.10 728.20 728.30 728.40 728.50 728.60 728.70 728.80 728.90 729.00 729.10 729.20 729.30 729.40 729.50 729.60 729.7 0 729.80 729.90 730.00 730.10 730.20 730.30 730.40 730.50 730.60 730.70 730.80 730.90 731.00 11,254 1 1,850 12,445 13,040 13,219 13,398 13,578 13,757 13,936 14,091 14,246 14,402 14,557 14,712 14,867 15,O22 15,178 15,333 15,488 1 5,643 15,798 15,954 16,109 16,264 16,419 16,574 16,730 16,885 17 ,O40 17 ,226 17,411 17 ,597 17 ,782 17,968 18,154 18,339 18,710 18,896 20,644 21 ,799 23,O14 24,288 25,601 26,932 28,281 29,647 31,032 32,433 33,850 35,283 36,731 38, 'r 94 39,673 41 ,167 42,677 44,203 45,744 47 ,301 48,873 50,460 52,063 53,682 55,316 s6,966 58,631 60,312 62,008 63,72'l 65,453 67 ,204 68,972 70,760 72,566 74,391 76,234 78,096 79,976 215 Summary for Link 3L: offsite total lnflow Area = 8.260 ac, 33.78o/o lmpervious, lnflow Depth = 2.46" for 10 year eventlnflow = 10.23 cfs @ 12.30 hrs, Volume= 1.693 af Primary = 10.23 cfs @ 12.30 hrs, Volume= 1.693 af, Atten= 0%, Lag= 9.6 r'n Primary outflow = lnflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Link 3L: offsite total Hydrograph I lnflowI Primary 11 '.9 I 7 6 5 4 0 2 4 6 8101214 16 1A2O221 2A3O 32 321 363840 12 11 46 1A 50 52 51 56 58 60 62 64 66 6a ?0 72 Tln|. (hou.!) lnflow Area=8.260 ac Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 10 year Rainfall=4.27" Prepared by {enter your company name here} Prinled 112712022 HydroCAD@ 10.00-25 s/n 00744 O 2019 HvdroCAD Software Solutions LLC Paoe 25 i tll Tro,3d;l 216 Proposed RSI Marine site Chanhassen 23953 MSE 24'hr 3 100 year Rainfall=7.38" Prepared by {enter your company name here} Printed 112712022 HydroCAD@ 10.00-25 sln 00744 O20'19 HydroCAD Software Solutions LLC Paoe 26 Time span=0.0G72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-lnd method - Pond routing by Dyn-Stor-lnd method Subcatchment 15: pond drainage RunoffArea=7.230 ac 36.79Yo lmpervious Runoff Depth=5.39" Flow Length=435' Tc=15.8min CN=83 Runoff=47.98 cfs 3.246 af Subcatchment 25: Direct runoff Runoff Area=1.030 ac '12.620/o lmpervious Runoff Depth=4.71" Flow Length=150' Tc=12.2 min CN=77 RunofF6.84 cfs 0.404 af Pond'lP: stormwater pond Peak Elev=730.70' Storage=74,299 cf lnflow=47.98 cfs 3.246 af Outflolr,= 16.96 cfs 3.246 af Link 3L: offsite total lnflow=18.76 cfs 3.650 af Primary=18.76 cfs 3.650 af Total Runoff Area = 8.260 ac Runoff Volume = 3.650 af Average Runoff Depth = 5.30" 66.22% Pervious = 5.470 ac 33.78% lmpervious = 2.790 ac 217 Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 100 year Rainfall=7.38" Prepared by {enter your company name here} Printed 112712022 HydroCAD@ 1 0.00-25 s/n 00744 A 2019 HydroCAD Software Solutions LLC Paqe 27 Summary for Subcatchment 1S: pond drainage Runoff = 47.98 cfs @ 12.24 hrs, Volume= 3.246 af, Depth= 5.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.0G72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 '100 year Rainfall=7.38" Area (ac) CN Description Paved parking, HSG C98 74 >757o Grass cover Good HSG C 7.230 4.570 2.660 Tc Length(min) (feet) 83 Weighted Average 63.21olo Pervious Area 36.79olo I mpervious Area Slope Velocity Capacity Description(fuft) (fusec) (cfs) 0.37 2.',12 0.21 3.52 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Shallow Concentrated Flow, Paved Kv= 20.3 fps Subcatchment 1S: pond drainage Hydrograph I Runoff E'o 3"u 20 50 45 40 35 10 0 MSE 24-hr 3 1 00 year Rainfall=7.38" Runoff Area=7.230 ac Runoff Volume=3.246 af Runoff Deplh=S.39" FIow Length=435' Tc=15.8 min CN=83 o 216 A 10 12 14 16 18 20222426 28 30 32 34 36 3A 40 42 44 46 48 s0 52 54 56 58 60 62 U 6 68 70 72 Tlme (houB) 2.660 4.570 6.6 0.9 7.9 o.4 145 0.3300 1 15 0.0200 100 0.1000 75 0.0300 15.8 435 Total l I 218 Summary for Subcatchment 25: Direct runoff Runoff = 6.84 ds @ 12.20 hrs, Volume= 0.404 af, Depth= 4.71" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 100 year Rainfall=7.38" Area (ac) CN Description 98 74 >75% Grass cover Good HSG C Paved parking, HSG C 77 Weighted Average 87.38% Pervious Area 12.62% lmpervious Area Tc Length(min) (fee0 (fuft)(fusec) (cfs) Slope Velocity Capacity Description 10.3 1.9 100 0.0200 50 0.3300 0.16 0.43 Sheet Flow, Grass: Short Sheet Flow, Grass: Short n= 0.150 n= 0.150 P2= 2.87" P2= 2.87" 12.2 150 Total Subcatchment 25: Direct runoff Hydrograph I Runoff '-9 7 6 5 3 2 Runoff Area=1.030 ac Runoff Volume=0.404 af Runoff Depth=4.71" Flow Length=l5 Tc=12.2 min CN=77 MSE 24-hr 3 f 00 year Rainfall=7.38" 0 02468101214 16 ft 20 22 24 26 2A 30 32 U 6 * 40 42 44 46 t{J 50 52 54 55 58 60 62 64 66 68 70 72 Tlme (hourt) Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 100 year Rainfall=7.38" Prepared by {enter your company name here} Ptinled 112712022 HvdroCAD@ '10.00-25 s/n 00744 02019 HvdroCAD Software Solutions LLC Paoe 28 0.130 0.900 1.030 0.900 0. 130 219 Proposed RSI Marine site Chanhassen 23953 Prepared by {enter your company name here} MSE 24-hr 3 100 year Rainfall=7.38" Ptinted 112712022 H roCAD@ 10.00-25 sln 00744 O2019 H roCAD Software Solutions LLC Summary for Pond 1P: stormwater pond 7.23O ac, 36.79% lmpervious, lnflow Depth = 5.39" for '100 year event 47.98 cfs @ 12.24 hrs, Volume= 3.246 al 16.96 cfs @ 12.U hrs, Volume= 3.246 af , Atten= 65%, Lag= 16.2 , n 16.96 cfs @ 12.54 hrs, Volume= 3.246 al lnflow Area = lnflow Outflow Primary Routing by Dyn-Stor-lnd method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Starting Elev= 727.50' Surf.Area= 13,040 sf Storage= 24,288 ct Peak Elev= 73O.7O'@ 12.54 hrs Surf.Area= 18,330 sf Storage= 74,299 ct (50,011cf above start) Plug-Flow detention time= 130.2 min calculated for 2.688 af (83% of inflow) Center-of-Mass det. time= 44.3 min ( 836.5 - 792.2 ) Volume lnvert Avail.Storaqe Storaqe Descri ption #1 722.00',79,976 ct Custom Stage Data (Prismatic) Listed below (Recalc) lnc.Store Cum.Store(cubic-feet) (cubic-feet) Elevation (feet) Surf.Area (sq-ft) 722.O0 724.00 726.O0 727.50 728.OO 730.00 731.00 Device Routing lnvert Outlet Devices 1 ,616 2,U8 4,112 13,040 13,936 17.U0 18,896 0 4,4U 6,960 12,864 6.744 30,976 17,968 0 4AU 11,424 24,288 3',t,032 62,008 79,976 #1 Primary 724.20',18.0" Round Culvert L= 25.0' RCP, groove end projecting, Ke= 0.200 lnlet / Outlet lnverl= 724.20' 1 723.95' S= 0.01 00'/ Cc= 0.900 n= 0.013, Flow Area= 1 .77 sf 4.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 18.0" Round Culvert L= 30.0' RCP, mitered to conform to fill, Ke= 0.700 lnlet / Outlet lnvert= 725.50' 1725.50' S= 0.0000'/ Cc= 0.900 n= 0.013, Flow Area= 1 .77 sf 48.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 #3 Device 1 Device 2 727.50', 725.50' #4 Device 1 730.50', rimary OutFlow Max=16.96 ds@12.U hrs HW=730.69' TW=0.00' (Dynamic Tailwater) =Culvert (Passes '16.96 cfs ol 25.23 cfs potential flow) =Sharp-Crested Rectangular Weir (Passes 13.42 cls of 62.76 cfs potential flow) =Culvert (lnlet Controls 13.42 cfs @ 7.59 fps) rifice/Grate (Weir Controls 3.54 cfs @ 1.44 fW) 220 Proposed RSI Marine site Ghanhassen 23953 Prepared by {enter your company name here} MSE 24-hr 3 100 year Rainfall=7.38" Prinled 112712022 Paoe 30HydroCAD@ 10.00-25 s/n O 2019 HvdroCAD Software Solutions LLC '-9E o 2 4 6 I 10 12 14 16 14202221 Pond 1P: stormwater pond Hydrograph 28 30 32 34 36 3a 40 42 4 I 1A fi 52 51 56 58 60 82 64 6 A 70 72 llrro (houB) Int I e I Z tt at!tl l(,l v \t d' JIEaKlIE ,t I n , ,u v (!I t c I C l€I 4 I, - II lIIrIIIIIIlfltilflIIlil1 a IlllllI1ililII llltIIIlllllflltIIIIl ltr I lnfowI Primaryffi t -// f'616ds 221 Elevation (feet) Su rface (sq-ft) Storage (cubic-feet) Elevation (feet) Su rface Storagesq-ft) (cubic-feet) 722.00 722.10 722.20 722.30 722.40 722.50 722.60 722.70 722.80 722.90 723.00 723.10 723.20 723.30 723.40 723.50 723.60 723.70 723.80 723.90 724.00 724.10 724.20 724.30 724.40 724.50 724.60 724.70 724.80 724.90 725.00 725.10 725.20 725.30 725.40 725.50 725.60 725.70 725.80 725.90 726.00 726.10 726.20 726.30 726.40 726.50 726.60 726.70 726.80 726.90 727 .00 727 .10 1,616 1,678 1 ,739 1,801 1 ,862 1 ,924 1,986 2,047 2,109 2,170 2,232 2,294 2,355 2,417 2,478 2,U0 2,602 2,663 2,725 2,786 2,848 2,911 2,974 3,038 3,101 3,164 3,227 3,290 3,3s4 3,417 3,480 3,543 3,606 3,670 3,733 3,796 3,859 3,922 3,986 4,049 4,112 4,707 5,302 5,898 6,493 7,088 7,683 8,278 I,874 9,469 10,064 10,659 727 .20 727 .30 727 .40 727 .50 727 .60 727.70 727 .80 727 .90 728.00 728.10 728.20 728.30 728.40 728.50 728 60 728.70 728.80 728.90 729.00 729.10 729.20 729.30 729.40 729.50 729.60 729.70 729.80 729.90 730.00 730.10 730.20 730.30 730.40 730.50 730.60 730.70 730.80 730.90 731.00 11,254 1 1,850 12,445 13,040 13,219 13,398 13,578 13,757 't 3,936 14,091 14,246 14,402 14,557 14,712 14,867 15,022 't5,178 15,333 '15,488 15,643 15,798 15,954 16,109 16,264 '16,419 16,57 4 16,730 16,885 17 ,040 17 ,226 17,411 17,597 17,782 17,968 18,154 18,339 18,525 18,710 18,896 20,u4 21,799 23,014 24,288 25,601 26,932 28.281 29,647 31 ,032 32,433 33,850 35,283 36,731 38,194 39,673 41,167 42.677 44.203 45,744 47 ,301 48,873 50,460 52,063 53,682 55,3'16 s6,966 58,631 60,312 62,008 63,721 65,453 67 ,204 68,972 70,760 72,566 74.391 76,234 78,096 79,976 Proposed RSI Marine site Chanhassen 23953 tlSE 24-hr 3 100 year Rainfall=7.38" Prepared by {enter your company name here} Ptinted 112712022 HvdroCAD@ 10.00-25 s/n 00744 020'19 HvdroCAD Software Solutions LLC Paqe 31 Stage-Area-Storage for Pond 1P: stormwater pond 0 165 336 513 696 885 1,080 1,282 'I ,490 I ,704 1 ,924 2,',150 2,383 2,621 2,866 3,117 3,374 3,637 3,907 4,182 4AU 4,752 5,046 5,U7 5,654 5,967 6,287 6,612 6,945 7 ,283 7 ,628 7 ,979 8,337 8,700 9,071 9,447 9,830 10,219 10,614 11,016 11,424 1 1,865 12,365 't2,925 13,545 14,224 14,963 15,761 16,618 17,535 18,512 19,548 222 Primary outflow = lnflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Link 3L: offsite total Hydrograph 21 20 19 t8 17 16 15 11 13 i12 l, 11 er0E9 I 7 6 5 I 3 2 1 0 ! lnfowI Pnmary 0 2 4 6 8 t0 12 14 16 1A202224 2A30 32 34 36 38 40 42 4 4 14 50 52 54 56 5860626,{ 66 68 70 72 Timo (houB) Proposed RSI Marine site Chanhassen 23953 MSE 24-hr 3 100 year Rainfall=7.38" Prepared by {enter your company name here} Printed 112712022 HvdroCAD@ 10.00-25 s/n 00744 02019 HvdroCAD Software Solutions LLC Paoe 32 Summary for Link 3L: offsite total lnflow Area = 8.260 ac, 33.78o/o lmpervious, lnflow Depth = 5.30" for 100 year eventlnflow = 18.76 cts @ 12.52 hrs, Volume= 3.650 af Primary = 18.76 cfs @ '12.52 hrs, Volume= 3.650 af, Atten= 0%, Lag= g.g , n --r--r-t rlrrlrrr uf 1 + I 1 l lnflow Area=8-260 rTr-T-TrrTrTr + ffi T-rT r-r-1 #tttl I I t ac it,j 1 'ul z A m % t'B;6-cr' 223 Memorandum To: MacKenzie Young-Walters, Associate Planner From: Erik Henricksen, Project Engineer Joe Seidl, Water Resources Engineer CC: Charles Howley, Public Works Director/City Engineer George Bender, Assistant City Engineer Joe Seidl, Water Resources Engineer Charlie Burke, Public Works Operations Manager Date: 2/18/2022 Re: 10500 and 10520 Great Plains Boulevard Conceptual PUD Review – Planning Case No. 2022-04 EASEMENTS The preliminary plat provided with the Conceptual PUD materials, dated 12/4/2018 and produced by James R. Hill, Inc., illustrates typical 10 foot public drainage and utility easements (DUE) along all property lines. Additional public DUEs will be required over public utilities (only watermain at this phase) extended into the property as discussed under the “Sanitary Sewer and Watermain” section of this report. The dimensions of the DUE must be adequate to properly repair and maintain the utility; the minimum for watermains is typically 20 feet wide, centered over the main, due to their typical installation depth of 7.5 feet, however additional DUE may be required depending on the plans that will be provided. Any and all existing easements must be vacated prior to recording of the final plat. Based on Carver County property information there appears to be two parcels abutting the preliminary plat’s western property lines that are listed as “Parcel ID: Gap”. It is unclear if these parcels are being considered in the lot combination of the Conceptual PUD, or if they are being considered a part of the adjacent lot to the west (PID #250361300). Clarification regarding the status of “Parcel ID: Gap” in conjunction with the proposed plat will be required prior to recording of the final plat from either the County or the applicant. 224 The preliminary plat abuts and gains access from Carver County right-of-way. Thus, the applicant must coordinate with Carver County regarding any additional considerations and potential conditions associated with easements for the property as well as any requirements associated with ingress/egress and construction activities such as during grading and hauling operations. EXISTING CONDITIONS SURVEY The existing condition survey, dated 1/28/2022 and produced by James R. Hill, Inc., will need to be updated upon resubmittal to incorporate the following information, as necessary: · Topographic data 100 feet beyond the property boundary · Illustration of existing features that would impact the site’s ingress/egress (e.g. the full extents of Flying Cloud Drive which includes the median near the site’s entrance) · Utilities on or adjacent to the property, including location, size and invert elevation of storm sewers, catch basins and manholes; location and size of water mains (including casings) and hydrants; location of gas mains, high pressure lines, fire hydrants, electric and telephone lines, and street lights. The direction, distance to, and size of such facilities shall be indicated. · Wetlands · Bluff impact zones · Sewage treatment systems and associated conveyance systems · Existing easements and associated recording document numbers · Property information within 150 feet of the property’s boundary · Retaining wall elevations WETLANDS A study completed by Kjolhaug Environmental Services in 2021 shows there are no wetlands within the project site. City records show there is one wetland just south of the project site located in the drainage ditch along County Road 101 (Great Plains Blvd). This wetland has been classified as a manage type 2 wetland in the City’s Surface Water Management Plan. A 1992 delineation report indicates the source of water as surface water runoff and the route of outflow is a culvert to the Minnesota River. The preliminary plans submitted with the Conceptual PUD show grading in close proximity to the wetland which is near the proposed access to the site. Article VI, Chapter 20 of City Code describes buffer strip and setback requirements. For example a 10 to 30 foot buffer strip with an average of 20 foot width for manage type 2 wetlands. There is also a 30-foot setback from the buffer strip so the building setback should be from 40 to 60 feet averaging 50 feet away from the 225 edge of a manage type 2 wetland. The wetland buffer and wetland setback should be shown on the grading plan and stacked in the field prior to construction. The preliminary plans appear meet the wetland buffer and setback requirements. BLUFFS There is a steep slope located on the west side of the property; the bottom generally follows the 750 contour of the property and the top of the follows the 772 -774 contours. The steep area is called out in the preliminary plans as a bluff, however because this area was created from grading completed as part of a development project in 1996 it is not a natural slope and therefore does not meet the City's definition of a bluff. The Lower Minnesota River Watershed District (LMRWD) also regulates steep slopes within their jurisdiction. The applicant will need to coordinate with the watershed district to confirm if the project triggers any regulations as defined in Rule F – Steep Slopes. RETAINING WALLS Preliminary plans provided with the Conceptual PUD submittal indicate that retaining walls may be required for the development. These walls are shown around the northern and western portions of the property. Portions of the retaining walls illustrated are shown to be located within public drainage and utility easements along the western property lines. An encroachment agreement would be required for any retaining walls located within public easements. Portions of the retaining walls are illustrated to be either close to or directly over the western property line. Due to the proximity to the property line, the construction of these walls would require construction activities to occur on the abutting property. The construction of any improvements that impact or require access to abutting properties must have the appropriate right-of-entry agreements and/or temporary construction easements prior to construction operations commencing. Retaining walls over 4 feet in height shall be constructed in accordance with plans prepared by a registered engineer and shall be constructed of a durable material (smooth face concrete, masonry/mortared, railroad ties and timber are prohibited). It should be noted that the height of any retaining wall is measured from the top of the wall to the bottom of the footing (not to the top of grade adjacent to the bottom of the wall). ACCESS Access to the site is currently had from Flying Cloud Drive (CSAH 61) and is located near the western property line. The preliminary plans indicate that the current access will remain and no 226 additional accesses to the surrounding Carver County rights-of-way are proposed. The development will be required to construct a commercial driveway access in accordance with City Standards. Any comments or conditions by Carver County associated with impacts to their rights-of-way must be adhered to and all permits required must be obtained prior to construction activities commencing. It appears no turnaround is provided in the preliminary plans. In accordance with Section 20- 1122 of City Code a turnaround is required when access is had from a state highway, county road or collector roadway. As access is being had from CSAH 61 a turnaround will be required that can adequately facilitate the turning movement of the largest anticipated design vehicle for the site or the City’s largest fire truck, whichever is greater. GRADING AND DRAINAGE The existing conditions plansheet and drainage maps included in the Conceptual PUD submittal show an existing building near the center of the property with access to Great Plains Boulevard provide by an asphalt parking area and gravel driveway. Stormwater runoff general flows from north to south down the slope of the site where it enters a drainage swale along Flying Cloud Drive. The drainage swale conveys stormwater from west to east. Stormwater leaves the site by way of an existing 48” culvert under Flying Cloud Drive which conveys the stormwater to the South through Bluff Creek and ultimately outleting to the Minnesota River. The preliminary plans provided with the Conceptual PUD submittal show a significant amount of grading. The design steepens the hill on the northeast side of the site to create a flat area conducive for the four proposed buildings with access and parking. The proposed design uses combination of drainage swales and stormwater infrastructure to collect and convey stormwater into a Best Management Practice (BMP) located on the southwest corner of the property. The design shows stormwater being conveyed from the proposed BMP to the existing swale along Flying Cloud Blvd through an outlet control structure. Any impacts to Carver County’s right-of- way must be approved and permitted by the County prior to construction activities. The overall design of the stormwater infrastructure mimics the flow path of the existing condition and acts to convey stormwater runoff from impervious surfaces through water quality BMPS. A more detailed analysis of stormwater volumes and rates may be required to show the wetland onsite is not negatively impacted by the proposed design. EROSION PREVENTION AND SEDIMENT CONTROL 227 The proposed development will exceed one (1) acre of disturbance and will, therefore, be subject to the General Permit Authorization to Discharge Stormwater Associated with Construction Activity Under the National Pollution Discharge Elimination/State Disposal System (NPDES Construction Permit). The applicant has prepared and submitted a preliminary Surface Water Pollution Prevention Plan (SWPPP) and generally appears feasible. The SWPPP is a required submittal element for preliminary plat review. No earth disturbing activities may occur until an approved SWPPP is developed. This SWPPP shall be a standalone document consistent with the NPDES Construction Permit and shall contain all required elements as listed in Parts III and IV of the permit. The SWPPP will need to be updated as the plans are finalized, when the contractor and their sub-contractors are identified and as other conditions change. SANITARY SEWER AND WATERMAIN Currently, municipal sanitary sewer and potable water services are not available to the site. During the build-out of the Highway 101 Realignment project, which was substantially completed in 2021, public sanitary sewer mains and water mains were extended along the corridor. However, these newly extended utilities are not fully active nor ready for operation to service properties, as such the site does not have adequate public sanitary and water to fully serve the development’s needs. In 2014, a Highway 61 corridor study was conducted in response to several near and long-term infrastructure projects at the time (e.g. Highway 101 Realignment, CSAH 61 reconstruction, flood mitigation projects, etc.) which prompted the City to investigate the feasibility of extending public utilities to the southern portion of the City. The study, known as “County Road 61 Corridor Plan”, conducted by SRF in association with Hoisington Koegler Group, Inc., determined that utility extensions were feasible within the study area. The image below, taken from Figure 3.1 of the City’s 2040 Comprehensive Plan, depicts the City’s existing and planned sanitary sewer in this area (planned water system build-out generally adheres to the same areas and alignments). 228 The proposed development falls within the southcentral region of sanitary subdistrict LB-1 (the Lower Bluff Creek District). The 2014 study estimated costs and fee revenue associated with extending City utilities to the study area, along with estimated utility assessments per acre, which are shown in Tables 1 and 2. 229 With a lack of adequate city utilities in the area, the development will be required to provide private utility services (sanitary sewer and potable water) to adequately meet the needs of the development. The City has preliminarily agreed to allow the development to tap into the public watermain which was extended with the Highway 101 Realignment project, but only to service the development’s fire suppression needs. At this time there is not sufficient demand along the extended watermain to supply water to the quality standards that the City requires for consumption. This is important to note because the preliminary plans provided indicate the existing well on-site is proposed to be abandoned. If the site will have any fixtures requiring the use of water other than for fire suppression needs, a private source of water supply must be used for those fixtures. The preliminary plans indicate tapping of the existing public watermain for fire suppression needs at the southwest corner of the property. As shown on the preliminary plans this would be infeasible as the watermain was housed in a casing at the location, and would be required to be extended further west to facilitate the connection. Regardless, the development will be required to extend the public watermain to the western property line, and the extension into the site must be along or near the improved private access to allow for reasonable access for future repair and maintenance. Adequate public drainage and utility easements will be required over the public main as it extends into the site. Private fire laterals can then be tapped from the public main as necessary. The property and potential future properties associated with this developable area will be specially assessed for the extension of the public sanitary sewer when they connect. STORM WATER MANAGEMENT The project site is located within the Lower Minnesota River Watershed District (LMRWD). The LMRWD is the LGU that administers NPDES Construction Permits for stormwater management. The proposed development will exceed the one (1) acre of new impervious area and will therefore require permanent stormwater BMPs to be constructed as part of this project 230 and maintained by the owner. The project will be subject to stormwater regulations outlined under LMRWD Rule D including rate, volume, and water quality. The City of Chanhassen also regulates the design, construction, and maintenance of stormwater infrastructure. Article VII, Chapter 19 of City Code describes the required storm water management development standards. Section 19-141 states that “these development standards shall be reflected in plans prepared by developers and/or project proposers in the design and layout of site plans, subdivisions and water management features.” A stormwater maintenance agreement and associated operations and maintenance plan is required for all private stormwater BMPs. Preliminary plans provided with the Conceptual PUD submittal show stormwater treatment and rate control from a wet pond with an incorporated filtration bench BMP located on the southwest corner of the property. The stormwater BMP appears to be properly sized for the impervious surface proposed in the plans. The design of the BMP is highly dependent on soil types and infiltration rates of the underlying soils. Soil borings, infiltration testing and an associated geotechnical report will be needed to confirm the design of the stormwater BMP. No geotechnical report was included as part of the Conceptual PUD submittal. The City’s water resources engineer reviewed the preliminary plans provided with the Conceptual PUD. Specific comments regarding the design of stormwater infrastructure and BMPs were provided to the applicant. STORM WATER MANAGEMENT FEES In 2005 a Stipulation of Settlement (Court File No. 10-CV-05-48) between PCH Development, LLC and the City of Chanhassen was agreed to regarding the park dedication fees and surface water management fees surrounding the subdivision of the “Paws Claws and Hooves Addition” subdivision (PC #2003-04 and the property of this Conceptual PUD). The surface water management fee was reduced to $9,900.00 and was paid on 7/25/2005. The settlement agreement states, “If all or any part of the property is changed to a different principal use or further subdivided, the property shall be subject to payment of additional park dedication and surface water management fees based upon the rates in effect at that time applicable to the proposed use and type of municipal approval requested.” However, as the stipulation was between the property owner and the City and was not required to be memorialized against the property, if the property owner changes from PCH Development, LLC no stormwater fees will be required if the PUD is approved. If the property is subdivided in the future, stormwater fees will be collected at the rate in affect at the time of platting, minus the $9,900.00 already paid. 231 Carver County Public Works 11360 Highway 212, Suite 1 Cologne, MN 55322 Office (952) 466-5200 | Fax (952) 466-5223 | www.co.carver.mn.us CARVER COUNTY March 1, 2022 City of Chanhassen c/o MacKenzie Young-Walters, AICP Associate Planner 952-227-1132 mwalters@ci.chanhassen.mn.us Re: Development / Access Review Comments: 10500 and 10520 Great Plains Boulevard Conceptual Planned Unit Development (PUD) located at PID#s 256010010 and 256010020 adjacent to County State Aid Highway (CSAH) 101 (Great Plains Blvd.) and CSAH 61 (Flying Cloud Dr.) Thank you for the opportunity to review the subject development in the City of Chanhassen. Consistent with the County Comprehensive Plan and County Codes, and other official controls of the County, the following are comments and recommended conditions of approval and as potential requirements for any necessary permits to be issued for the project. 1. Regarding access to the County highway a. The proposed driveway access onto CSAH 61 was built with the County’s Flying Cloud Dr. project and the proposed driveway location appears consistent with the access that was constructed. b. Provide an estimate of the maximum number of vehicles that may make a left turn into the site during an hour to evaluate the potential operational and safety risk of vehicles and any towed trailers obstructing eastbound CSAH 61 traffic. Additional improvements may be needed to mitigate any operational or safety risks that are identified. 2. Regarding County highway right of way a. The property boundaries shall match the existing County highway right of way. The proposed boundary appears to match the highway right of way as modified by CR RW Plat No. 29. 3. Regarding grading adjacent to the County highway a. County requests drainage calculations and data for the proposed development. Revision is likely needed regarding the outlet for the proposed stormwater treatment ponds, which is not in a good location due to the flow outlet being up gradient from the trail which is below. Drainage should be carried and directed further to the east into the roadside ditch that currently exists instead of to the west side of the development on the steep slopes and directly pointed at the trail embankment. b. Confirm the proposed drainage will not create an adverse impact to the County right of way. c. Proposed grading shall tie-in and be compatible with the existing ground in the County 232 right of way. 4. Regarding final approvals and required permits - a. The County will need to review and approve the final grading plans for properties adjacent to CSAH 101 and CSAH 61. A grading permit will be required for grading work within the highway right of way. b. An access permit will be required for access to CSAH 61 due to this change in use and connection of the site improvements to CSAH 61. c. The technical details of any final plat, its boundaries and form(s) will need to be reviewed and approved by the County Surveyor. d. Prior to any work affecting or on County highways or in County right of way, the applicant shall coordinate plans with the County Engineer and obtain a Utility, Access, or Excavating/Filling/Grading Permit(s) from Carver County Public Works: (www.co.carver.mn.us/departments/public-works/quick-links/permits). Final details of locations, grades, and profiles affecting County roads as well as any utility connections will need to be reviewed and approved prior to any permits. e. Any damages, modifications, or changes incurred on County highways from current or approved conditions will need to remedied or updated at development expense, including costs incurred by the County. These are the County’s comments at this time. If you have any questions or need further assistance, please contact staff noted below: Joan Guthmiller Administrative Technician Carver County Public Works 952.466.5201 jguthmiller@co.carver.mn.us Angie Stenson AICP Sr. Transportation Planner Carver County Public Works 952.466.5273 astenson@co.carver.mn.us Dan McCormick, P.E. PTOE Traffic Services Supervisor Carver County Public Works 952.466.5208 dmccormick@co.carver.mn.us 233 Landscaping and Tree Preservation 10500/10520 Great Plains Blvd A Planned Unit Development (PUD) is expected to ‘protect.. mature trees…” and ‘reflect higher quality design of…landscaping’. The proposed development site has existing trees as evidenced in a field inspection and shown in current aerial mapping applications. The existing trees and woods are not included on the Existing Conditions sheets, nor reflected in the submitted Canopy Coverage calculations shown on the Landscape Plan. It is unknown if any of the existing trees will be preserved, but it appears that there may be some in part of the ‘undisturbed area’ shown on the plan that may possibly be unaffected by site grading. The applicant will need to submit a tree inventory for the site as well as update the canopy coverage calculations. Based on the calculations, the applicant will need to meet and potentially exceed the minimum requirements for replacement tree planting on the site. Staff recommends that the applicant consider using a no-mow turf grass or prairie mix in place of the proposed sod areas to promote a sustainable landscape design for the site. A site plan review for the site will be required to show foundation plantings on the outward facing sides of the buildings. Bufferyard plantings are required along the property lines. The landscape plan shows the following proposed landscaping for the site. Required plantings Proposed plantings Bufferyard B –North prop. line, Regional Trail, 780’ 15 overstory trees 31 Understory trees 46 Shrubs 1 overstory trees 4 Understory trees 46 Shrubs Bufferyard C –South prop. Line, Hwy 61, 700’ 21 overstory trees 42 understory trees 63 shrubs 6 overstory trees 0 understory trees 0 shrubs Bufferyard C –west prop. line, Hwy 101 Great Plains Blvd, 500’ 15 Overstory trees 30 Understory trees 45 Shrubs 3 Overstory trees 3 Understory trees 0 Shrubs Bufferyard C -East property line, 460’ 10 Overstory trees 20 Understory trees 31 Shrubs 2 Overstory trees 0 Understory trees 0 Shrubs The applicant does not meet minimum requirements for bufferyard plantings on the site. 234 The vehicular use area is required by code to have landscaping that includes islands or peninsulas for every 6,000 sq. ft. of use area and landscape areas and a minimum number of trees in and around the parking area in order to reduce the overall heat island effect of pavement and improve aesthetics of the site. Minimum requirements for landscaping for the parking lot include 2,816 sq. ft. of landscaped area around the parking lot, 5 landscape islands or peninsulas, and 11 trees for the parking lot. The applicant’s proposed as compared to the requirements for landscape area and parking lot trees is shown in the following table. Required Proposed Vehicular use landscape area 2,816 sq. ft.0 sq. ft. Trees/parking lot 11 trees 0 trees Landscape islands or peninsulas/parking lot 5 islands/peninsulas 0 islands/peninsulas The landscaping as proposed in the concept plan does not meet minimum requirements for trees, landscaping or islands/peninsulas. Acknowledging that the standard requirements for trees and landscape islands within the paved area may prove difficult to incorporate into the site, staff recommends that the applicant propose alternatives that also provide environmental benefits and/or reduction in the heat island effect caused by large expanses of asphalt. 235 CITY OF CHANHASSEN AFFIDAVIT OF MAILING NOTICE STATE OF MINNESOTA) ss. COUNTY OF CARVER ) I. Kim T. Meuwissen, being first duly sworn, on oath deposes that she is and was on February 17, 2022, the duly qualified and acting City Clerk of the City of Chanhassen, Minnesota;that on said date she caused to be mailed a copy of the attached notice of Consider a request for Conceptual PUD approval for a mixed-use Planned Unit Development(PUD) which would permit the construction of four 20,000 square-foot storage buildings on approximately 8.3 acres with a land use designation of Mixed located at 10500 and 10520 Great Plains Boulevard. Zoned: Fringe Business District. Property Owner: Nancy Blood/ Applicant: RSI Marine 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. Li)Z/l.A 04/\' Kim ssen, City C erk Subscribed and s rn to before me this 1 fir. day of 't-6(1-k-4 , 2022. Notary Public 236 Subject ,.a. Parcel ir‘io , 0!•,., J jill.,. . . lot I/f ate Disclaimer This map is neither a legally recorded map nor a survey and is not intended to be used as one.This map is a compilation of records,information and data located in various city, county,state and federal offices and other sources regarding the 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 the 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 the TAX NAMED depiction of geographic features. The preceding disclaimer is provided pursuant to TAX ADD L1»Minnesota Statutes§466.03, Subd. 21 (2000), and the user of this map acknowledges that the City shall not be liable for any damages,and expressly waives all claims,and TAX ADD L2» agrees to defend,indemnify,and hold harmless the City from any and all claims brought by User,its employees or agents,or third parties which arise out of the user's access or use of data provided. i r r-r Subject r^ Parcel it:,4,0 . 4,1. r e,: isoorr.47007_V Illip6 ,•, . ., .... , 1. .. rr. Disclaimer This map is neither a legally recorded map nor a survey and is not intended to be used as one.This map is a compilation of records,information and data located in various city, county,state and federal offices and other sources regarding the 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 the 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 the depiction of geographic features. The preceding disclaimer is provided pursuant to Minnesota Statutes§466.03,Subd. 21 (2000),and the user of this map acknowledges that the City shall not be liable for any damages, and expressly waives all claims, and agrees to defend,indemnify,and hold harmless the City from any and all claims brought Next Record»«TAX NAME»by User,its employees or agents,or third parties which arise out of the user's access or use of data provided. TAX_ADD_LID TAX ADD L2» 237 a r p m m.to , vt ° cOa 0) QO) 03 N a m rmoo° cm Hhaoanovommo N Um E 3ma n mcTO .0 N O ' r O y •Y C G V la cri mom mEoomE mo,ma cov 0 m 4- 0 ... (1) u) 7 O N O O) O y = mmc HmHmH m-c= mm c<2iE00 = O L U Q «0 C Q. Q 0) O E m E m m y P.m etLL - O N "0 >iL C cm m 3 v C af• > 3 0 "0 6 d1- 0 E Q O y C V 0) +. O 'm a¢ °co >.'o c-E ac mO , C (/) O E 0) i 0) E 3 .0 N m U m m U. y.. m o u . c o N 01 ca > ,- f0 to Oi O C . fl. 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SUMMARY BACKGROUND DISCUSSION RECOMMENDATION 240 ATTACHMENTS Planning Commission Meeting Minutes dated February 15, 2022 241 CHANHASSEN PLANNING COMMISSION REGULAR MEETING MINUTES FEBRUARY 15, 2022 CALL TO ORDER: Chairman von Oven called the meeting to order at 7:00 p.m. MEMBERS PRESENT: Laura Skistad, Eric Noyes, Mark von Oven, Erik Johnson, and Kelsey Alto. MEMBERS ABSENT: Doug Reeder, Steven Weick. STAFF PRESENT: Kate Aanenson, Community Development Director; MacKenzie Young- Walters, Associate Planner PUBLIC PRESENT: Grant Dattilo 3703 South Cedar Drive (on behalf of the applicant) Chairman von Oven reviewed guidelines for conducting the Planning Commission meeting. PUBLIC HEARING: 3703 SOUTH CEDAR DRIVE VARIANCE Associate Planner Young-Walters presented the staff report on this item, noting this first appeared before the Planning Commission in November. At the time it was tabled, the Applicant and staff have worked together to address some of the Commissioner’s comments. The variance is for front yard, side yard, and shoreland setbacks, and lot cover maximum for construction of a single-family house located at 3703 South Cedar Drive. The Applicant is proposing to demolish an existing cabin and build a single-family home on a substandard lot. In November, the Applicant expressed concern with a staff condition to create a 20-foot wide vegetative buffer across the width of the parcel, noting that there is a beach area and a very small side yard. The Planning Commission directed staff and the Applicant to work together to develop a compromise addressing the City’s concern on the impact to the lake’s water quality while preserving as much of the Applicant’s beach as possible. Working with the Water Resources Engineer, they developed a solution that meets the minimum intent of the surface water management plan and gives the Applicant as much use of the yard space as possible. Mr. Young-Walters showed the proposed plan on screen with the 400-square foot buffer with a French drain system for runoff. Grant Dattilo, son of the Applicants, noted his parents were unable to attend the meeting and asked him to tell the Commissioners that they agree with what the City is proposing and thanks the City Staff for working with them to make it happen. Chairman von Oven opened the public hearing. 242 Planning Commission Minutes – February 15, 2022 2 Chairman von Oven closed the public hearing. Commissioner Noyes moved, Commissioner Skistad seconded that the Chanhassen Board of appeals and adjustments approves 34.2-foot shoreland setback, 3-foot east and west side yard setback, 1.3-foot front yard setback, and 19 percent lot cover variances, subject to the Conditions of Approval, and adopts the attached Findings of Fact and Decision. All voted in favor and the motion carried unanimously with a vote of 5 to 0. PUBLIC HEARING: DISCUSSION OF PROPOSED CODE AMENDMENT Mr. Young-Walters stated this is an amendment for the variance timeline. Staff is proposing an amendment to require a 500-foot mailed notification for appeals of administrative decisions and to clarify the public hearing timeline for appeals and variances. City Code requires a mailed notice to properties within 500 feet of a property requesting a variance but does not have a similar requirement when a property appeals an administrative decision or code enforcement action. The City Statute does not align with the State Statute in terms of review time for a zoning request. Mr. Young-Walters clarified that this request would address both of those. Staff wants to be sure individuals who may be impacted by these matters are notified and have a chance to come to a public hearing and speak. There is a statutory 60-day review period and City Code has a 45-day clause to set up a hearing with the Applicant; State law allows extension of up to 60 days and is not reflected in City Code. This would make it clear that the City has that authority and increase transparency. Chairman von Oven opened the public hearing. Chairman von Oven closed the public hearing. Commissioner Alto moved, Commissioner Johnson seconded that the Chanhassen Planning Commission recommends that the City Council adopt the proposed ordinance amending Chapter 20 concerning appeal notification and public hearing timeline requirements. All voted in favor and the motion carried unanimously with a vote of 5 to 0. APPROVAL OF MINUTES: APPROVAL OF PLANNING COMMISSION MINUTES DATED JANUARY 4, 2022 Commissioner Noyes noted the summary minutes of the Planning Commission meeting dated January 4, 2022 as presented. ADMINISTRATIVE PRESENTATIONS: Community Development Director Aanenson stated City Code says that by the end of March the Planning Commission must review the Annual Report. She gave a presentation showing the 2021 year-in-review and a look forward to what is coming up in 2022 for the City. She shared that the City had record building permit activity, lots of redevelopment and remodeling, and inspections. She walked through planning cases by type, subdivisions, site plan reviews, and population numbers. Ms. Aanenson stated 2022 work projects anticipate 2% residential growth, some development reviews, the Avienda Lifestyle Center, revisions of the wetland ordinance and 243 Planning Commission Minutes – February 15, 2022 3 surface water management requirements of City Code, minor code corrections and revisions, and a Joint Commissions’ Tour. CITY COUNCIL ACTION UPDATE: None. ADJOURNMENT: Commissioner Skistad moved to adjourn the meeting. All voted in favor and the motion carried unanimously with a vote of 5 to 0. The Planning Commission meeting was adjourned at 7:27 p.m. Submitted by Kate Aanenson Community Development Director Prepared by Jean Steckling Sr. Admin. Support Specialist 244 Planning Commission Item March 1, 2022 Item City Council Action Update File No.Item No: G.1 Agenda Section ADMINISTRATIVE PRESENTATIONS Prepared By Jean Steckling, Sr. Admin Support Specialist Applicant Present Zoning Land Use Acerage Density Applicable Regulations SUGGESTED ACTION SUMMARY No discussion items from either the February 14, 2022 or February 28, 2022 City Council meetings. BACKGROUND DISCUSSION RECOMMENDATION 245 ATTACHMENTS 246