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CC Staff Report 22-04A
City Council Item September 12, 2022 Item Ordinance XXX: RSI Marine, 10500 and 10520 Great Plains Boulevard: Consider a Request for Rezoning to Planned Unit Development with Site Plan, Consolidation of Lots, and Variances File No.2022-04A Item No: G.1 Agenda Section GENERAL BUSINESS Prepared By MacKenzie Young-Walters, Associate Planner Reviewed By Laurie Hokkanen SUGGESTED ACTION "The Chanhassen City Council approves rezoning to Planned Unit Development, site plan, consolidation of lots, and variances subject to the conditions of approval, and adopts the attached Findings of Fact and Recommendation." Motion Type Simple Majority Vote of members present Strategic Priority Development & Redevelopment SUMMARY RSI Marine is requesting rezoning to Planned Unit Development (PUD) with Site Plan approval for four boat storage buildings with a combined square footage of 85,200, vacation of existing drainage and utilities easements, consolidation of lots, and variances from the City’s vehicular area landscaping requirements. Note: Staff has updated the site plan agreement since the public hearing to include the following conditions: 1. If the property develops in phases the southern two buildings shall be constructed before the northern two buildings. 188 2. Conditions relating to the construction and expansion of public improvements (i.e. water and sanitary sewer). The details of these conditions can be found in the attached site plan agreement. BACKGROUND Level of Discretion The City has a relatively high level of discretion in approving or denying 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. The City has no authority in approving or denying the Consolidation of lots. The City has a relatively high level of discretion in approving or denying Vacations because the City is determining if rights granted to the City are needed to serve a public interest. Public Hearing: On August 16th, 2022 the Planning Commission voted 6-0 to recommend approval approval of all items. During the Public Hearing one member of the public expressed concern about future traffic impacts on this site as future properties in the area develop. Staff noted that traffic studies would be used to determine and address traffic impacts as part of each site plan approval associated with future development. During the meeting the Planning Commission made the following comments: Commissioner Schwartz asked if the proposed parking could accommodate multiple customers visiting the site at the same time. Staff clarified that the operator's business model restricts site access to staff. Commissioner Schwartz expressed concern about the amount of landscaping proposed for the site. Staff noted that the applicant is being required to meet the City's buffer yard requirements and cautioned that the architectural renderings did not reflect the amount of landscaping proposed for the site. Commissioner Noyes asked if the City is limiting potential redevelopment by approving this site plan. Staff explained that the applicant was being required to extend sewer and water so the site 189 would not inhibit future development to the east. Staff stated that ultimately market forces would determine when this site redeveloped and what form that redevelopment would take. Commissioner von Oven asked if a fence could be added. Staff replied that the applicant could add a fence so long as it met the requirements of the City Code. DISCUSSION The applicant is requesting the City rezone the parcels currently addressed as 10500 and 10520 Great Plains Boulevard from Fringe Business District (BF) to Planned Unit Development (PUD) and approve a site plan for two 20,000 square-foot and two 22,600 square-foot buildings which will be used for indoor boat storage. Their proposed site plan will require variances from the City’s vehicular area landscaping requirements. They are also proposing to consolidate the two parcels into one, which will require vacation of the existing drainage and utilities easements. They have stated that they envision this as a medium-term use, allowing for the improvement and reasonable use of the site until City sewer is available. They believe that once full municipal services are available, the site’s use will shift to include a commercial component and become a true mixed-use development. They have indicated that buildings will utilize high quality finishes, but that the use is not compatible with the City’s façade transparency requirements and that they are instead using architectural detailing to provide significant visual relief, as permitted by the City Code. They have explained that the nature of the business does not involve employees being on site, save to store and remove boats, and that there is no public access to the facility. Due to the fact that there are minimal parking areas and large open spaces are required to maneuver trailers, they have stated that installing landscaped islands as required by City Code is not practical. A fence and security gate may be added in the future to aid in site security. Staff believes the proposed PUD ordinance for the development will allow the applicant reasonable use of the parcel until City sewer becomes available, and that once full municipal services are available the uses permitted by the PUD will encourage the property to redevelop as a mixed-use center consistent with the parcel’s land use guidance. The proposed use meets a need for the community, generates minimal traffic, and can meet the majority of the City’s design and landscaping requirements. The variances requested are the result of the unique nature of the use and the practical difficulties the owner would encounter if they were required to meet the relevant standards. Staff is proposing conditions that would require future users without this unique business model to meet the design and landscaping requirements. For these reasons, staff recommends approval of the PUD, Site Plan, Variance, Lot Consolidation, and Vacation. A full discussion can be found in the attached staff report. BUDGET RECOMMENDATION Staff and the Planning Commission recommend that the City Council approve rezoning to Planned Unit Development, site plan, consolidation of lots, and variances, subject to the conditions of approval and adopts the attached Findings of Fact and Recommendation. ATTACHMENTS 190 PUD Ordinance RSI PUD Staff Report Signed Findings of Fact and Recommendation Variance Document 22-04A Site Plan Agreement 2022-04A Letter of Credit Template Application for Development Review Project Narrative Responses to the City of Chanhasssen RSI Marine Storage Site Plan Review Set (06-13-2022) Updated Landscaping RSI MARINE Stormwater Narrative 06-01-2022 SET Storm Sewer Sizing Worksheet Storm Drainage Area Variance Request Landscape Islands Engineering Comments Carver County Memo Carver County Attachment Landscaping Comments Affidavit of Mailing 191 CITY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES, MINNESOTA ORDINANCE NO. XXX AN ORDINANCE AMENDING CHAPTER 20 OF THE CHANHASSEN CITY CODE, THE CITY'S ZONING ORDINANCE, BY REZONING CERTAIN PROPERTY Section 1. Chapter 20 of the Chanhassen City Code, the City's zoning ordinance, is amended by rezoning the following described property (“Subject Property”) to PUD, Planned Unit Development: 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 Plat No. 29, Carver County, Minnesota. And Lot 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 Plat No. 29, Carver County, Minnesota. Section 2. Flying Cloud Center Planned Unit Development Flying Cloud Center (PUD 2022-04A) A. Intent The purpose of this zone is to create a Mixed Use PUD accommodating a mix of commercial, office, residential, and warehousing uses with the intention that the warehousing uses be phased out after municipal sewer becomes available. 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 192 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. No new warehousing and storage uses shall be permitted for this PUD after municipal sewer becomes available. 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 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 Divisions 7 and 9 of Article XXIII of the City Code. Section 3. The zoning map of the City of Chanhassen shall not be republished to show the aforesaid zoning, but the Clerk shall appropriately mark the zoning map on file in the Clerk's Office for the purpose of indicating the rezoning hereinabove provided for in this ordinance, and all of the notations, references, and other information shown thereon are hereby incorporated by reference and made a part of this ordinance. Section 4. This ordinance shall be effective immediately upon its passage and publication. PASSED AND ADOPTED this 12th day of September, 2022, by the City Council of the City of Chanhassen, Minnesota. Laurie Hokkanen, City Manager Elise Ryan, Mayor 193 (Published in the Chanhassen Villager on XX/YY/ZZZZ) 194 CITY OF CHANHASSEN PC DATE: August 16, 2022 CC DATE: September 12, 2022 REVIEW DEADLINE: September 13, 2022 CASE #: PC 2022-04A BY: MYW SUMMARY OF REQUEST: RSI Marine is requesting rezoning to Planned Unit Development (PUD) with Site Plan approval for four boat storage buildings with a combined square footage of 85,200, vacation of existing drainage and utilities easements, consolidation of lots, and variances from the City’s vehicular area landscaping requirements. 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: .235 LEVEL OF CITY DISCRETION IN DECISION-MAKING: The City has a relatively high level of discretion in approving or denying 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. The City’s has no authority in approving or denying the Consolidation of lots. The City has a relatively high level of discretion in approving or denying Vacations because the City is determining if rights granted to the City are needed to serve a public interest. 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 Planned Unit Development rezoning, site plan, vacation, consolidation of lots, and variances, subject to the conditions of approval and adopts the attached Findings of Fact and Recommendation.” 195 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 2 PROPOSAL/SUMMARY The applicant is requesting the City rezone the parcels currently addressed as 10500 and 10520 Great Plains Boulevard from Fringe Business District (BF) to Planned Unit Development (PUD) and approve a site plan for two 20,000-square foot and two 22,600-square foot buildings which will be used for indoor boat storage. Their proposed site plan will require variances from the City’s vehicular area landscaping requirements. They are also proposing to consolidate the two parcels into one, which will require vacation of the existing drainage and utilities easements. They have stated that they envision this as a medium-term use, allowing for the improvement and reasonable use of the site until City sewer is available. They believe that once full municipal services are available, the site’s use will shift to include a commercial component and become a true mixed-use development. They have indicated that buildings will utilize high quality finishes, but that the use is not compatible with the City’s façade transparency requirements and that they are instead using architectural detailing to provide significant visual relief, as permitted by the City Code. They have explained that the nature of the business does not involve employees being on site, save to store and remove boats, and that there is no public access to the facility. Due to the fact that there are minimal parking areas and large open spaces are required to maneuver trailers, they have stated that installing landscaped islands as required by City Code is not practical. A fence and security gate may be added in the future to aid in site security. Staff believes the proposed PUD ordinance for the development will allow the applicant reasonable use of the parcel until City sewer becomes available, and that once full municipal services are available the uses permitted by the PUD will encourage the property to redevelop as a mixed-use center consistent with the parcel’s land use guidance. The proposed use meets a need for the community, generates minimal traffic, and can meet the majority of the City’s design and landscaping requirements. The variances requested are the result of the unique nature of the use and the practical difficulties the owner would encounter if they were required to meet the relevant standards. Staff is proposing conditions that would require future users without this unique business model to meet the design and landscaping requirements. For these reasons, staff recommends approval of the PUD, Site Plan, Variance, Lot Consolidation, and Vacation. APPLICABLE REGULATIONS 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. 196 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 3 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. 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 subdivided 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. In March of 2022, the City approved a Concept PUD for this property, subject to conditions of approval. In May of 2022, the applicant submitted an application for PUD and Site Plan approval; however, the application was deemed incomplete due to missing stormwater information. EXISTING CONDITIONS Site Constraints 197 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 4 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 There 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. This wetland, its buffer, and setbacks should be shown on the grading plan and staked in the field prior to construction. The buffer must be planted with native vegetation as outlined in City Code. 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 198 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 5 within the floodplain; however, no portion of the project will take place below the Base Flood Elevation (721’ contour). REZONING TO PUD 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 until municipal services become available; however, since water is now available to this site, 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 storage facility, and large lot residential properties. 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; thus, 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: 199 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 6 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 since it allow all four buildings to be placed on a single lot. Without PUD zoning, each building would need to be placed on a separate lot and the required streets and setbacks would result in greater disturbance to the site. 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 that minimize the amount of impervious surface required for road and vehicular use areas. 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 the City’s minimum design standards. Proposed buildings will be reviewed through the site plan review process and be required to comply with this 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 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. As this corridor and intersection serve as the City’s southern gateway, a thoughtful and smooth transition between uses is critical. 5. Development which is consistent with the Comprehensive Plan. 200 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 7 Finding. The use of PUD zoning sets up the framework for the property to develop as a true mixed-use district including retail, office, and residential uses once sanitary sewer becomes available to the site, while allowing immediate use of the site as a 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. Additionally, the Comprehensive Plan requires PUD zoning for property’s with a Mixed land use designation. 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; however, the PUD does permit multi-family housing which will increase the range and type of housing options available within the community. 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 permitting 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 future site users will be required to use traffic demand management strategies as appropriate, which will be reviewed during the site plan review of projects within the PUD. 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 2022-04A) 201 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 8 A. Intent The purpose of this zoning is to create a Mixed-Use Planned Unit Development (PUD) accommodating a mix of commercial, office, residential, and warehousing uses, with the intention that the warehousing uses be phased out after municipal sewer becomes available. The use of the PUD zoning 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 this zoning 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. No new warehousing and storage uses shall be permitted for this PUD after municipal sewer becomes available. 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 iv. Signs as per allowed in a General Business District 202 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 9 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 Divisions 7 and 9 of Article XXIII of the City Code. SITE PLAN REVIEW The applicant is proposing two 22,600-square foot and two 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 there is minimal need for parking as employees will only be onsite when loading and unloading boats and that the facility will not be open to the public. While the applicant is requesting site plan approval for all four buildings, the project will be built in phases based on cost and utilization. 203 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 10 Architectural Compliance Size Portion Placement The buildings will be arranged so that the storage bays face the interior of the development. Due to the proposed use and lack of public access, the buildings will not have a traditional main entryway, nor is it desirable for the building’s entrances to face the public streets. Since the only entries to the buildings are the interior oriented service and overhead doors the City’s entrance requirements do not apply to this development. The City Code also requires that buildings over 40 feet in width be divided into smaller increments through façade articulation. The buildings will use architectural towers, various siding materials and textures, and a two-tone color scheme to achieve articulation along the most visible southern and western elevations. These techniques combined with the proposed landscape plantings meet the intent of the City’s design standards, especially taking into account the constraints imposed by the nature of the use. Material and Detail The buildings will use a relatively small amount of brick for the architectural towers with the bulk of the buildings’ siding being either vertical metal siding with a stucco finish or metal tongue and groove lap siding with a woodgrain finish. The lower portions of the building and 204 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 11 areas not covered by siding will be color integrated concrete masonry unit rock face block. Higher quality materials are concentrated along the visible south and west facades, while the much lower visibility north and south are almost entirely comprised of the vertical metal siding. Given the nature of the use, staff believes the proposed materials are of acceptable quality. Color The building will utilize muted browns, grays, and off white colors to help the buildings blend in with the natural landscape. A two-tone color scheme is proposed to help break up the façade; however, there are no sharply contrasting colors and color integrated overhead doors are being utilized instead of white to avoid starkly contrasting colors. The proposed color scheme meets the requirements of the City Code. Height and Roof Design The buildings will be approximately 28.9 feet in height measured from highest grade to the midpoint of the highest gable, and will feature roofs with a 4:12 pitch. The tower portion of the southern building will have a height of approximately 34 feet measured form highest grade to the midpoint of the highest gable. Both the proposed building heights and roof configuration meet the requirements of the City Code, and the applicant has stated that no rooftop equipment is proposed, therefore rooftop screening is not required. The roof will be a medium bronze color metal roof. Façade Transparency The City Code requires that 50 percent of the first floor elevation viewed by the public include transparent elements such as windows or doors; however, it allows for buildings whose function does not readily allow for windows, such as storage buildings, to have reduced fenestration standards so long as sufficient architectural detailing is used. The most visible eastern and southern elevations of the proposed buildings range from between roughly 10 to 17 percent façade transparency. The applicant’s buildings propose using changes in colors, materials, and the presence of architectural towers to create architectural interest to compensate for the reduced façade transparency. Due to the fact that these buildings are unoccupied storage facilities and given the security concerns associated with requiring large ground level windows, the development qualifies for reducing the façade transparency requirements. Staff believes the proposed architectural detailing along the south and west elevations is adequate, especially since the applicant previously responded to staff concerns about the proposed façade transparency by significantly increasing the size of the windows in those elevations. Site Furnishings The nature of the applicant’s proposal, i.e. no permanent employees or public access, makes the inclusion of benches, tables, and chairs impractical and unnecessary. 205 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 12 Fence The applicant has indicated that a fence and gate may be added in the future. Any future fence would need to abide by the eight foot height limit, be located outside of the required front yard setback and sight distance triangle. The fence would also need to be located behind the required landscape buffers. A permit would be required prior to the construction of any future fencing. Loading Areas, Refuse Area, Etc. The applicant has stated that no external trash enclosures will be present on the property as the nature of the operation will not generate trash. 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 Due to the fact that there will be no permanent employees or public access, the applicant is providing five parking spaces. The location of these spaces meet the City’s requirement that no more than 50 percent of the parking area shall be between the front façade of the principal building and the primary abutting street. ACCESS 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. The applicant will use 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 eastern property line. Since the property has access from a county road, a turnaround is being proposed as required by Section 20-1122 of the City Code. 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. Carver County is requiring that the applicant shift the median on Flying Cloud drive west by 60 feet to accommodate truck and trailer left turns into the subject site. The applicant can coordinate with Carver County Public works on the design specifics. An access permit will be required for access to CSAH 61 due to the change in use. 206 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 13 EASEMENTS The preliminary plat provided dated December 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 were also provided over public utilities (only water main at this phase) extending into the property. The location of the additional DUE over the public water main are subject to change upon addressing the conditions associated with the public water main as discussed under the “Sanitary Sewer and Water Main” section of this report Any and all existing easements must be vacated as proposed prior to recording of the final plat. GRADING AND DRAINAGE The existing conditions plan sheet and drainage maps included in the submittal show an existing building near the center of the property with access to Great Plains Boulevard provided 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 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 stormwater pond Bluff Creek 9-2-1 and into Bluff Creek before ultimately outleting to the Minnesota River. The preliminary plans provided with the 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 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. The Hydrologic and Hydraulic HydroCAD models show the site is decreasing rates leaving the site for the 2-, 10- and 100-year storm events. Carver County is requesting drainage calculations and data for the proposed development and is requesting that the applicant’s engineer meet with them to confirm the stormwater calculations. They have expressed concern regarding the outlet for the proposed stormwater treatment ponds which is up gradient from the trail below. They have indicated that drainage should be directed further east into the existing ditch rather than to the west side of the development. The proposed drainage must not adversely impact the County right of way and must be compatible with the 207 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 14 existing ground in the County right of way. The County will need to review and approve the final grading plans, and a grading permit will be required for grading work within the highway right- of-way. 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 it 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 A retaining wall with a maximum height of approximately seven feet is being proposed on the north side of the property as well as a retaining wall with a maximum height of approximately four feet along the east side of the property. The applicant has stated that they will use a modular block gravity retaining wall system and has acknowledged the City’s requirement that permits are required for all walls with engineered designs being required for walls over four feet in height. Portions of the retaining walls are illustrated to be either close to or directly over the eastern property line. Due to the proximity to the property line, staff is concerned that the construction of these walls would require construction activities to occur on the abutting property. If this is the case, 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. LANDSCAPING A PUD is expected to ‘protect… mature trees…’ and ‘reflect higher quality design of…landscaping’. Existing vegetation on the site consists of many pioneer tree species. These types of trees that are the first to populate a site, often after a disturbance. Common species on the site include box elder, 208 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 15 Siberian elm, green ash, cottonwood, and hackberry. The applicant is able to save the existing trees along the north property line adjacent to the regional trail corridor which is a mix of hackberry, elm and box elder. While the elm and box elder may not be highly desirable trees, they do provide nesting and habitat for birds and pollinators. Preserving these trees also helps to meet buffer yard requirements for the north property line. The applicant is proposing a native prairie seed mix along the north property line. This location is ideal for a dry prairie seed mix that will work to provide habitat on site, provided that the proper establishment of the seed is followed. Staff recommends that the applicant provide a 3-year prairie management contract to ensure the establishment of the native plants. The applicant is proposing a diverse mix of tree and shrub species but needs to incorporate two additional understory genera in order to meet minimum diversity as required by ordinance so that no genus has more than 10 trees in quantity. Buffer yard plantings are required along the property lines. The landscape plan shows the following proposed landscaping for the site, which does not meet the minimum requirements for 209 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 16 buffer yard plantings on the south, west and east sides of the site. Staff recommends that the applicant be required to meet the minimum requirements for buffer yards in these areas. Required plantings Proposed plantings Buffer yard A – North prop. line, Regional Trail, 780’ 7 overstory trees 14 Understory trees 21 Shrubs 19 overstory trees - existing 0 Understory trees 46 Shrubs Buffer yard B – South prop. Line, Hwy 61, 700’ 14 overstory trees 28 understory trees 42 shrubs 11 overstory trees 23 understory trees 25 shrubs Buffer yard B –west prop. line, Hwy 101 Great Plains Blvd, 500’ 10 Overstory trees 20 Understory trees 30 Shrubs 5 Overstory trees 8 Understory trees 20 Shrubs Buffer yard A - East property line, 460’ 4 Overstory trees 9 Understory trees 13 Shrubs 4 Overstory trees 8 Understory trees 12 Shrubs 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 as well as landscaped areas and 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 3,090 sq. ft. of landscaped area around the parking lot, five landscaped islands or peninsulas, and 12 trees for the parking lot. The applicant’s proposed landscaping as compared to the requirements for landscape area and parking lot trees is shown in the following table: Required Proposed Vehicular use landscape area 3,090 sq. ft.0 sq. ft. Trees/parking lot 12 trees 0 trees Landscape islands or peninsulas/parking lot 5 islands/peninsulas 0 islands/peninsulas The applicant has requested a variance from this standard due to the fact that they are only creating five parking stalls and the rest of the vehicular use area needs to be unobstructed to facilitate truck and trailer movements. Since landscaped islands would impede safe and efficient traffic movement on the site, staff supports the variance request to not install landscape islands in the vehicular use area; however, when the use of the site changes and parking is included, then all landscaped islands and/or peninsulas required by Code shall be installed. LIGHTING One LED light along the driveway is proposed to be mounted approximately 10 feet above grade and LED lights in decorative housing will be mounted approximately 10 feet above grade along 210 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 17 the building facades fronting the vehicular use area. Details were not provided for the proposed housings; however, both the pole and building mounted lights will need to be shielded with a total cutoff angle equal to or less than 90 degrees. Staff believes the proposed lighting is adequate for the intended use as there is no parking lot or public access to the site. SIGNAGE No signage is planned or being proposed at this time. The PUD will incorporate the requirements of the City’s Sign Code for the General Business (BG) District and require that all signage be architecturally compatible with buildings’ materials and colors. If signage is proposed in the future, it will require a permit and be reviewed for compliance with these standards. MISCELLANEOUS 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 heavy landscaping that will be effective in winter. Section 2902.1 of the International Building Code exempts structures that are typically unoccupied from needing to provide restroom facilities. As these buildings will be used for storage and will not have permanent employees on site, the City is waiving the requirement to provide bathrooms. Since no bathrooms are required, a septic system will not need to be installed. Based on Carver County property information there appears to be two parcels abutting the preliminary plat’s eastern property lines that are listed as “Parcel ID: Gap”. It is unclear if these parcels are being considered in the lot combination of the 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. The technical details of the final plant will need to be reviewed and approved by the County Surveyor. 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 211 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 18 be memorialized against the property, when the property owner changed from PCH Development, LLC the agreement ceased to be in force. As a result, no Park fees will be required. 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 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. Based on the LMRWD’s website, a portion of the site includes Steep Slopes as defined by the LMRWD and will be required to meet LMRWD Rule F. 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.” These standards include water quality treatment resulting in the removal of 90% total suspended solids (TSS) and 60% total phosphorous (TP), and runoff rate control for the 2-, 10-, and 100-year storm events. A stormwater maintenance agreement and associated operations and maintenance plan is required for all private stormwater BMPs. The LMRWD requires volume control equal to one inch of runoff from impervious surfaces. The site is proposing 2.99 acres of impervious which requires 10,852 cubic feet of volume control. The filtration bench provides 16,921 cubic feet of volume control below the outlet meeting the volume control requirement. 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 reviewed submittal. If the soil borings show onsite soils are conducive to infiltration, the BMP will need to be redesigned to allow for infiltration in line with LMRWD rules. If the soil borings support the current filtration bench design, because the site is providing more volume control than is required, the project will be meeting the water quality rules. A number of comments pertaining to the P8 modeling of the site have been provided to the applicant which should be addressed to confirm the water quality treatment being provided. The Stormwater narrative and supporting hydrologic and hydraulic HydroCAD models were reviewed and found to have a few inconsistencies from the plans provided such as a different amount of proposed impervious, not properly modeling the proposed filtration bench, and not including the overflow from the pond. The current modeling shows the site meets rate control 212 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 19 requirements showing a decrease in discharge rates leaving the site from the existing condition to the proposed condition in the 2-, 10- and 100-year storm event. The applicant shall update the hydrologic and hydraulic models based on comments from City staff and provide satisfactory models, and rate analysis confirming compliance with requirements prior to recording the final plat. As noted in Appendix H of the City’s Surface Water Management Plan dated August 2006, the City requires at least three feet of freeboard between a building elevation and adjacent ponding features. The site is currently meeting this freeboard requirement with respect to the proposed BMP HWL elevation of 730.44. Once the HydroCAD models have been updated, it should be confirmed the site is still in compliance with the City’s 3-foot freeboard requirement between the HWL and adjacent buildings. The grading plan shows there is only 0.4 feet of vertical separation between the intermediate EOFs within the driving area and the adjacent buildings proposed first floor elevation. The grading plan should be updated to provide a minimum 1.0 feet of separation between these EOFs and the adjacent buildings as outlined in Chapter 19 of City Code. The City’s water resources engineer reviewed the preliminary plans provided with the submittal. 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 (Planning Case #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 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 and water to fully serve the development’s needs. 213 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 20 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). 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. 214 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 21 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 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 not 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 a sanitary sewer main to be installed within the development that then connects to the public main extended within the CSAH 61 right-of-way. This connection is not approved as the public sanitary sewer is not active nor ready for operation to service properties. If the applicant desires to construct sanitary sewer services and/or mains to service the future needs of the development, the applicant will be required to concurrently extend the public sanitary sewer main along CSAH 61 right-of-way to the eastern property line and cap the service line to the development. 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 east to facilitate the connection. Regardless, the development will be required to 215 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 22 extend the 12” C900 PVC public water main to the eastern property line along CSAH 61 right- of-way. The extension into the site must be along or near the improved private access to allow for reasonable access for future repair and maintenance and of adequate diameter to service the needs of the development. 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 applicant and their engineer shall work with City staff on amending the construction plans, dated May 6, 2022 prepared by Joel G. Cooper, PE with James R. Hill, Inc., to fully satisfy staff concerns. Final construction plans will be subject to review and approval by staff to ensure adherence to the most recent edition of the City’s Standard Specifications and Detail Plates and City Ordinances. 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. When the property and potential future properties connect to municipal services they will also be required to pay the utility hook-up fees at the rate in effect at the time of hook-up. Lastly, prior to commencement of any utility work, a copy of all required permits from the appropriate regulatory agencies shall be provided to the City which shall include but is not limited to the Minnesota Department of Health, Carver County, etc. COMPLIANCE TABLE Code Project Building Height 3 stories 1 story 35 feet 34 feet Building Setback N - 50' E - 10'N - 132' E - 75' W - 25' S - 25'W - 190' S –50’ Parking Stalls 48 stalls*5 stalls** Parking Setback N - 50' E - 10'N - 190' E - 30' W - 25' S - 25' W - 60' S - 150' Hard Surface Coverage 70%35.9% Lot Area 20,000 sq. ft.382,855 sq. ft. (8.33 ac.) *Unless applicant demonstrates that due to business model less parking is required. **Due to lack of permanent employees and no public access, staff is comfortable with provided parking. 216 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 23 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. RECOMMENDATION Staff recommends that the Planning Commission adopt the following motion: The Chanhassen Planning Commission recommends City Council approve Planned Unit Development rezoning, site plan, vacation, consolidation of lots, and variance, subject to the conditions of approval and adopt the Findings of Fact and Recommendation: Planning: 1. Light fixtures must be downcast have a 90 degree cut off as required by Section 20-913 of the City Code. 2. Any proposed signage will require a separate sign permit and must conform to the requirements of the PUD ordinance and City Code. 3. Any future fencing will require a permit and must meet the requirements of the City Code. 4. Approval of the site plan is contingent upon consolidation of the two parcels into a single lot. 5. Retaining walls under four feet in height require a zoning permit. 6. Any future HVAC systems will need to have any and all exterior components screened from public view, either through the use of materials similar to the building materials or by using heavy landscaping that will be effective in winter. Environmental Resources: 1. The applicant shall meet minimum requirements for buffer yards. A revised landscape plan shall be submitted to the City. 2. The applicant shall provide a 3-year prairie establishment and management plan for the native seed area specified on the landscape plan. 3. When the use of the site changes and parking is included, then all required landscaped islands and/or peninsulas shall be installed. 4. Incorporate two additional tree understory genera to Plant Schedule in order to meet minimum diversity as required by ordinance so that no genus has more than 10 trees in quantity. Fire: 1. Building must have Fire department lock boxes for access. 2. All buildings will require fire sprinkler systems. 3. If fence is added in the future it must have fire department access boxes or gate switches (if electronic). 4. No hazardous material (i.e. gasoline, oil, etc.) may be stored on site. Building: 1. A building permit must be obtained before beginning any construction. 217 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 24 2. Building plans must be prepared and signed by design professionals licensed in the State of Minnesota. a. Building plans must provide sufficient information to verify that proposed building meets all requirements of the Minnesota State Building Codep; additional comments or requirements may be required after plan review. b. The building is required to have automatic fire extinguishing systems. c. Structure proximity to property lines (and other buildings) will have an impact on the Code requirements for the proposed buildings, including but not limited to; allowable size, protected openings and fire-resistive construction. These requirements will be addressed when complete building and site plans are submitted. d. Building plans must include a code analysis that contains the following information: Key Plan, Occupancy group, Type of construction, Allowable height and area, Fire sprinklers, Separated or non-separated, Fire resistive elements (Exterior walls, Bearing walls - exterior or interior, Shaft, Incidental use), Occupant load, Exits required (Common path, Travel distance), Minimum plumbing fixture count. 3. Retaining walls (if present), more than four feet high must be designed by a professional engineer and a building permit must be obtained prior to construction. 4. International Building Code section 2902.1 exception: states that when approved by the building official, buildings or structures that are normally unoccupied, such as picnic shelters, amphitheaters, small transit stop stations, cold storage buildings, utility sheds, warming house, kiosks, concession stands and similar structures, need not be provided with restroom facilities. As these buildings will be used for storage and will not have employees on site, the requirement to provide a bathroom is waived and a septic system does not need to be installed. 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. Engineering: 1. Adequate public drainage and utility easements are required over any publicly owned and maintained water mains and will be subject to review and approval by staff prior to the recording of the final plat. 2. Any existing easements within the final plat area must be vacated prior to recording of the final plat. 3. The two parcels along the development’s eastern property lines listed with Carver County’s property information as “Parcel ID: Gap” will need to be identified appropriately prior to recording of the final plat. 4. Encroachment agreements are required of any proposed improvements within public drainage and utility easements after review and approval by the City Engineer. 5. The construction of any improvements that require access to adjacent properties shall receive a temporary construction easement or right-of-entry prior to issuance of any building permits. 218 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 25 6. Retaining walls over four feet in height shall be constructed in accordance with plans prepared by a registered engineer and shall be privately owned and maintained. 7. The development shall construct a commercial driveway access in accordance with the most recent edition of the City’s Standard Specifications and Detail Plates. 8. Any private utility needed to service the development, including sanitary sewer and potable water, will be required to be provided by the developer as the property is not serviced by adequate city utilities. 9. The proposed connection to the public sanitary sewer main is not approved. 10. The proposed water main tap to the public main shall only be used for fire suppression needs for the development. 11. The developer shall extend the 12” C900 PVC public water main to the eastern property line along CSAH 61. 12. The water extension into the site must be along or near the improved private access to allow for reasonable access for future repair and maintenance. 13. The applicant and their Engineer shall work with City staff in amending the construction plans, dated May 6, 2022 prepared by Joel G. Cooper, PE, to fully satisfy all plan review comments. Final construction plans will be subject to review and approval by staff. 14. The property and potential future properties associated with the final plat will be specially assessed for the extension of the public sanitary sewer when they connect. 15. The property and potential future properties associated with the final plat will be required to pay utility hook-up charges at the rate in effect at the time of connection to municipal services. 16. All required permits from the appropriate regulatory agencies including but not limited to the Minnesota Department of Health, Carver County Public, etc. shall be provided to the city prior to issuance of building permits. Water Resources: 1. The applicant shall provide a copy of an approved permit from the LMRWD as part of the building permit submittal to the City. 2. The applicant must submit soil borings and a geotechnical report with the building permit submittal to the City. Any modifications to the current design based on the geotechnical findings will be reviewed with future submittals to confirm compliance with the City’s requirements. 3. The applicant must update the hydrologic and hydraulic models per City comments and submit updated computations and models in their native forms with the building permit submittal to the City. 4. The applicant shall update P8 water quality modeling and resubmit the models in their native form to confirm the City’s water quality rule is met with the building permit submittal to the City. 5. The applicant shall update plans to provide the required freeboard from the proposed buildings and the EOF. 6. The applicant shall update plans to show wetland buffer markers and native vegetation in the wetland buffer area. 219 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 26 7. The applicant shall enter into an Operations and Maintenance Agreement for any proposed privately owned stormwater facilities which shall be recorded concurrently with the final plat. 8. 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. Carver County: 1. Median on CSAH 61 (Flying Could Drive) must be shifted west 60 feet to accommodate a truck and trailer pull out of the way of traffic when making left turns into the subject site. This improvement shall be made at the expense of the applicant and an excavation permit will be required. Applicant can coordinate with Carver County Public works on design specifics. A plan set shall be developed and signed by a licensed Engineer. 2. Provide drainage calculations and data for proposed development. Drainage should be carried and directed further to the east into the roadside ditch that currently exits instead of to the west side of the development on the steep slopes and directly pointed at the trail embankment. 3. Confirm that proposed drainage will not create an adverse impact to the County right of way. 4. Proposed grading shall tie-in and be compatible with the existing ground in the County right of way. 5. Outlet apron needs to be stabilized per design guidance from MnDOT to minimize the erosion risk. 6. Applicant’s engineering shall meet with Carver County Public Works to confirm the stormwater calculations. 7. Carver County will need to review and approve final grading plans. A grading permit will be required. 8. An access permit will be required for access to CSAH 61 due to the change in use and connection of the site improvements to CSAH 61. A deposit will be required to ensure work within the right of way for a median change project is to County standards. 9. Technical details of final plat, its boundaries and forms will need to be reviewed and approved by the County Surveyor. 10. 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) for Carver County Public Works. 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 being issued. 11. Any damages, modifications, or changes incurred on County highways from current or approved conditions will need to be remedied or updated at development expense, including costs incurred by the County. ATTACHMENTS 1. Proposed PUD Ordinance 220 10500 and 10520 Great Plains Boulevard PUD Rezoning August 16, 2022 Page 27 2. Findings of Fact and Recommendation 3. Variance Document 4. Draft Site Plan Agreement 5. Development Review Application 6. Project Narrative 7. Response to City of Chanhassen 8. Site Plan Review Set 9. Updated Landscaping Plan 10. Stormwater Narrative 11. Storm Sewer Sizing Worksheet 12. Storm Drainage Area 13. Variance Request 14. Engineering Memo 15. Carver County Memo 16. Carver County Attachment 17. Landscaping Memo 18. 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 221 222 223 224 225 226 227 228 1 CITY OF CHANHASSEN CARVER COUNTY, MINNESOTA VARIANCE 2022-04A 1. Permit. Subject to the terms and conditions set forth herein, the City of Chanhassen hereby grants the following variance: The Chanhassen Board of Appeals and Adjustments approves a variance waiving Section 20-1181(b)’s required interior landscaping standards for vehicular use areas. 2. Property. The variance is for a property situated in the City of Chanhassen, Carver County, Minnesota, and legally described as: 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 Plat No. 29, Carver County, Minnesota. And Lot 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 Plat No. 29, Carver County, Minnesota. 3. Conditions. The variance approval is subject to the following conditions: 1. When the use of the site changes and parking is included, then all required landscaped islands and/or peninsulas shall be installed. 4. Lapse. If within one (1) year of the issuance of this variance the allowed construction has not been substantially completed, this variance shall lapse. 229 2 Dated: September 12, 2022 CITY OF CHANHASSEN BY: Elise Ryan, Mayor (SEAL) AND: Laurie Hokkanen, City Manager STATE OF MINNESOTA ) (ss. COUNTY OF CARVER ) The foregoing instrument was acknowledged before me this day of , 2022 by Elise Ryan, Mayor, and Laurie Hokkanen, City Manager, of the City of Chanhassen, a Minnesota municipal corporation, on behalf of the corporation and pursuant to authority granted by its City Council. NOTARY PUBLIC DRAFTED BY: City of Chanhassen 7700 Market Boulevard P.O. Box 147 Chanhassen, MN 55317 (952) 227-1100 g:\plan\2022 planning cases\22-04a 10500 and 10520 great plains blvd\7-15-22 submittal for 8-16-22 pc meeting\variance document 22-04a.docx 230 1 CITY OF CHANHASSEN SITE PLAN AGREEMENT #2022-04A RSI MARINE SPECIAL PROVISIONS AGREEMENT dated September 12, 2022, by and between the CITY OF CHANHASSEN, a Minnesota municipal corporation, (the "City"), and RSI Marine & Motor Sports, LLC, (the "Developer"). 1.Request for Site Plan Approval. The Developer has asked the City to approve a site plan forfour single story storage buildings with a combined size of 85,200 square feet, rezoning to Planned Unit Development, vacation of existing drainage and utilities easements, consolidation of lots, and variances from the City’s vehicular area landscaping requirements (referred to in this Agreement as the "project"). The land located in Carver County, Minnesota, is legally described as: 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 Plat No. 29, Carver County, Minnesota. And Lot 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 Plat No. 29, Carver County, Minnesota. 2.Conditions of Site Plan Approval. The City hereby approves the site plan on condition that the Developer enters into this Agreement and furnish the security required by it. 3.Development Plans. The project shall be developed and maintained in accordance with the following plans. The plans shall not be attached to this Contract. If the plans vary from the written terms of this Agreement, the written terms shall control. The plans are: Plan A-Site Plan prepared by James R. Hill, Inc., dated May 6, 2022. Plan B-Grading, Drainage and Erosion Control Plans prepared byJames R. Hill, Inc., dated May 6, 2022. Plan C-Landscaping Plan prepared byJames R. Hill, Inc., dated May 6, 2022. 231 2 Plan D - Architectural Plans prepared byGries Architectural Group Inc., dated May 6, 2022. 4.Time of Performance. The Developer shall install all required screening and landscaping by September 12, 2023. The Developer mayrequest an extension of time from the City. If an extension is granted, it shall be conditioned upon updating the security posted by the Developer to reflect cost increases and the extended completion date. 5.Security. To guarantee compliance with the terms of this Agreement, the Developer shall furnish the City with a letter of credit from a bank, cash escrow, or equivalent ("security") for $537,875 (erosion control, grading, landscaping, and stormwater improvements). If the Developer requests a Certificate of Occupancy prior to the installation of site improvements, then the developer shall provide to the City with a letter of credit or cash escrow in an amount sufficient to insure the installation of said improvements. PROCEDURES FOR LETTER OF CREDIT REDUCTION a. Requests for reductions of Letters of Credit must be submitted to the City in writing by the Developer or his Engineer. b. Partial lien waivers totaling the amount of the requested reduction shall accompany each such request. c. Any reduction shall be subject to City approval. 6.Notices.Required notices to the Developer shall be in writing, and shall be either hand delivered to the Developer, its employees or agents, or mailed to the Developer at the following address: RSI Marine. Attn: Rob Schatzle 1533 3rd Avenue W. Shakopee, MN 55379 Notices to the City shall be in writing and shall be either hand delivered to the City Manager, or mailed to the City in care of the City Manager at the following address: Chanhassen City Hall, 7700 Market Boulevard, P.O. Box 147, Chanhassen, Minnesota 55317, Telephone (952) 227-1100. 7.Other Special Conditions. City Council approves a site plan for four single-story storage buildings with a combined size of 85,200 square feet, rezoning to Planned Unit Development, vacation of existing drainage and utilities easements, consolidation of lots, and variances from the City’s vehicular area landscaping requirements subject to the following conditions: Planning: 1. Light fixtures must be downcast and have a 90 degree cut off as required by Section 20- 913 of the City Code. 2. Any proposed signage will require a separate sign permit and must conform to the requirements of the PUD ordinance and City Code. 232 3 3. Any future fencing will require a permit and must meet the requirements of the City Code. 4. Approval of the site plan is contingent upon consolidation of the two parcels into a single lot. 5. Retaining walls under four feet in height require a zoning permit. 6. Any future HVAC systems will need to have any and all exterior components screened from public view, either through the use of materials similar to the building materials or by using heavy landscaping that will be effective in winter. Environmental Resources: 1. The applicant shall meet minimum requirements for buffer yards. A revised landscape plan shall be submitted to the City. 2. The applicant shall provide a 3-year prairie establishment and management plan for the native seed area specified on the landscape plan. 3. When the use of the site changes and parking is included, then all required landscaped islands and/or peninsulas be installed. 4. Incorporate two additional tree understory genera into Plant Schedule in order to meet minimum diversity as required by ordinance so that no genus has more than 10 trees in quantity. Fire: 1. Building must have Fire department lock boxes for access. 2. All buildings will require fire sprinkler systems. 3. If a fence is added in the future, it must have Fire department access boxes or gate switches (if electronic). 4. No hazardous material (i.e. gasoline, oil, etc.) may be stored on site. Building: 1. A building permit must be obtained before beginning any construction. 2. Building plans must be prepared and signed by design professionals licensed in the State of Minnesota. 1. Building plans must provide sufficient information to verify that proposed building meets all requirements of the Minnesota State Building Code, additional comments or requirements may be required after plan review. 2. The building is required to have automatic fire extinguishing systems. 3. Structure proximity to property lines (and other buildings) will have an impact on the Code requirements for the proposed buildings, including but not limited to: allowable size, protected openings and fire-resistive construction. These requirements will be addressed when complete building and site plans are submitted. 4. Building plans must include a Code analysis that contains the following information: Key plan, Occupancy group, Type of construction, Allowable height and area, Fire sprinklers, Separated or non-separated, Fire resistive elements (Exterior walls, Bearing walls - exterior or interior, Shaft, Incidental use), Occupant load, Exits required (Common path, Travel distance), Minimum plumbing fixture count. 3. Retaining walls (if present) more than four feet high must be designed by a professional engineer and a building permit must be obtained prior to construction. 233 4 4. International Building Code Section 2902.1 exception: states that when approved by the building official, buildings or structures that are normally unoccupied, such as picnic shelters, amphitheaters, small transit stop stations, cold storage buildings, utility sheds, warming house, kiosks, concession stands and similar structures, need not be provided with restroom facilities. As these buildings will be used for storage and will not have employees on site, the requirement to provide a bathroom is waived and a septic system does not need to be installed. Parks: 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. Engineering: 1. Adequate public drainage and utility easements are required over any publicly owned and maintained water mains and will be subject to review and approval by staff prior to the recording of the site plan agreement. 2. Any existing easements within the area governed by the site plan agreement must be vacated prior to recording of the site plan agreement. 3. The two parcels along the development’s eastern property lines listed with Carver County’s property information as “Parcel ID: Gap” will need to be identified appropriately prior to recording of the site plan agreement. 4. Encroachment agreements are required of any proposed improvements within public drainage and utility easements after review and approval by the City Engineer. 5. The construction of any improvements that require access to adjacent properties shall receive a temporary construction easement or right-of-entry prior to issuance of any building permits. 6. Retaining walls over 4 feet in height shall be constructed in accordance with plans prepared by a registered engineer and shall be privately owned and maintained. 7. The development shall construct a commercial driveway access in accordance with the most recent edition of the City’s Standard Specifications and Detail Plates. 8. Any private utility needs to service the development, including sanitary sewer and potable water, will be required to be provided by the developer as the property is not serviced by adequate city utilities. 9. The proposed connection to the public sanitary sewer main is not approved. 10. The proposed water main tap to the public main shall only be used for fire suppression needs for the development. 11. The developer shall extend the 12” C900 PVC public watermain to the eastern property line along CSAH 61. 12. The water extension into the site must be along or near the improved private access to allow for reasonable access for future repair and maintenance. 13. The applicant and their Engineer shall work with City staff in amending the construction plans, dated May 6, 2022 prepared by Joel G. Cooper, PE to fully satisfy all plan review comments. Final construction plans will be subject to review and approval by staff. 14. The property and potential future properties associated with the site plant agreement will be specially assessed for the extension of the public sanitary sewer when they connect. 15. The property and potential future properties associated with the site plan agreement will be required to pay utility hook-up charges at the rate in effect at the time of connection to municipal services. 234 5 16. All required permits from the appropriate regulatory agencies including but not limited to the Minnesota Department of Health, Carver County Public, etc. shall be provided to the city prior to issuance of building permits. Water Resources: 1. The applicant shall provide a copy of an approved permit from the LMRWD as part of the building permit submittal to the City. 2. The applicant must submit soil borings and a geotechnical report with the building permit submittal to the City. Any modifications to the current design based on the geotechnical findings will be reviewed with future submittals to confirm compliance with the City’s requirements. 3. The applicant must update the Hydrologic and Hydraulic models per City comments and submit updated computations and models in their native forms with the building permit submittal to the City. 4. The applicant shall update P8 water quality modeling and resubmit the models in their native form to confirm the City’s water quality rule is met with the building permit submittal to the City. 5. The applicant shall update plans to provide the required freeboard from the proposed buildings and the EOF. 6. The applicant shall update plans to show wetland buffer markers and native vegetation in the wetland buffer area. 7. The applicant shall enter into an Operations and Maintenance Agreement for any proposed privately owned stormwater facilities which shall be recorded concurrently with the site plan agreement. 8. 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. Carver County: 1. Median on CSAH 61 (Flying Could Drive) must be shifted west 60 feet to accommodate a truck and trailer pull out of the way of traffic when making left turns into the subject site. This improvement shall be made at the expense of the applicant and an excavation permit will be required. Applicant can coordinate with Carver County Public works on design specifics. A plan set shall be developed and signed by a licensed Engineer. 2. Provide drainage calculations and data for proposed development. Drainage should be carried and directed further to the east into the roadside ditch that currently exits instead of to the west side of the development on the steep slopes and directly pointed at the trail embankment. 3. Confirm that proposed drainage will not create an adverse impact to the County right of way. 4. Proposed grading shall tie-in and be compatible with the existing ground in the County right of way. 5. Outlet apron needs to be stabilized per design guidance from MnDOT to minimize the erosion risk. 6. Applicant’s engineering shall meet with Carver County Public Works to confirm the stormwater calculations. 235 6 7. Carver County will need to review and approve final grading plans. A grading permit will be required. 8. An access permit will be required for access to CSAH 61 due to the change in use and connection of the site improvements to CSAH 61. A deposit will be required to ensure work within the right of way for median change project is to County standards. 9. Technical details of lot consolidation, its boundaries and forms will need to be reviewed and approved by the County Surveyor. 10. 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) for Carver County Public Works. 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 being issued. 11. Any damages, modifications, or changes incurred on County highways from current or approved conditions will need to be remedied or updated at development expense, including costs incurred by the County. 8.General Conditions. The general conditions of this Agreement are attached as Exhibit "A" and incorporated herein. 9.Counterparts. This Agreement may be executed in any number of counterparts, each of which shall constitute one and the same instrument. CITY OF CHANHASSEN BY: Elise Ryan, Mayor AND: Laurie Hokkanen, City Manager STATE OF MINNESOTA ) ( ss COUNTY OF CARVER ) The foregoing instrument was acknowledged before me this day of , 20___, by Elise Ryan, Mayor, and by Laurie Hokkanen, City Manager, of the City of Chanhassen, a Minnesota municipal corporation, on behalf of the corporation and pursuant to the authority granted by its City Council. __________________________________ NOTARY PUBLIC 236 7 DEVELOPER: BY: Its: Rob Schatzle STATE OF MINNESOTA ) ( ss. COUNTY OF ) The foregoing instrument was acknowledged before me this ____ day of _____________, 20___ by Rob Schatzle. __________________________________ NOTARY PUBLIC DRAFTED BY: City of Chanhassen 7700 Market Boulevard P. O. Box 147 Chanhassen, MN 55317 (952) 227-1100 237 8 ( CITY OF CHANHASSEN SITE PLAN AGREEMENT EXHIBIT "A" GENERAL CONDITION 1.Right to Proceed. Within the site plan area, the Developer may not grade or otherwise disturb the earth, remove trees, construct improvements, or any buildings until all the following conditions have been satisfied: 1) thissite plan agreement has been fully executed by both parties and filed with the City Clerk, 2) the necessary security and fees have been received by the City, and 3) the City has issued a building permit in reliance on the foregoing conditions having been satisfied. 2.Maintenance of site. The site shall be maintained in accordance with the approved site plan. Plants and ground cover required as a condition of site plan approval which die shall be promptly replaced. 3.License. The Developer hereby grants the City, its agents, employees, officers and contractors a license to enter the site to perform all work and inspections deemed appropriate by the City in conjunction with site plan development. 4.Erosion Control. Before the site is rough graded, and before any building permits are issued, the erosion control plan, Plan B, shall be implemented, inspected, and approved by the City. The City may impose additional erosion control requirements if they would be beneficial. All areas disturbed by the excavation and backfilling operations shall be reseeded forthwith after the completion of the work in that area. Except as otherwise provided in the erosion control plan, seed shall be certified seed to provide a temporary ground cover as rapidly as possible. All seeded areas shall be fertilized, mulched, and disc anchored as necessary for seed retention. The parties recognize that time is of the essence in controlling erosion. If the Developer does not comply with the erosion control plan and schedule or supplementary instructions received from the City, the City may take such action as it deems appropriate to control erosion at the Developer's expense. The City will endeavor to notify the Developer in advance of any proposed action, but failure of the City to do so will not affect the Developer's and City's rights or obligations hereunder. No development will be allowed and no building permits will be issued unless there is full compliance with the erosion control requirements. Erosion control shall be maintained until vegetative cover has been restored. After the site has been stabilized to where, in the opinion of the City, there is no longer a need for erosion control, the City will authorize removal of the erosion control measures. 5.Clean up. The Developer shall maintain a neat and orderly work site and shall daily clean, on and off site, dirt and debris, including blowables, from streets and the surrounding area that has resulted from construction work by the Developer, its agents or assigns. 6.Warranty. All trees, grass, and sod required in the approved Landscaping Plan, Plan C, shall be warranted to be alive, of good quality, and disease free at the time of planting. All trees shall be warranted for twelve (12) months from the time of planting. The Developer or his contractor(s) shall post a letter of credit or cash escrowto the City to secure the warranties at the time of final acceptance. 7.Responsibility for Costs. A. The Developer shall hold the City and its officers and employees harmless from claims made 238 9 by itself and third parties for damages sustained or costs incurred resulting from site plan approval and development. The Developer shall indemnify the City and its officers and employees for all costs, damages, or expenses which the City may pay or incur in consequence of such claims, including attorneys' fees. B. The Developer shall reimburse the City for costs incurred in the enforcement of this Permit, including engineering and attorneys' fees. C. The Developer shall pay in full all bills submitted to it by the City for obligations incurred under this Permit within thirty (30) days after receipt. If the bills are not paid on time, the City may halt all development work and construction. Bills not paid within thirty (30) days shall accrue interest at the rate of 8% per year. 8.Developer's Default. In the event of default by the Developer as to any of the work to be performed by it hereunder, the City may, at its option, perform the work and the Developer shall promptly reimburse the City for any expense incurred by the City, provided the Developer is first given written notice of the work in default, not less than four (4) days in advance. This Contract is a license for the City to act, and it shall not be necessary for the City to seek a Court order for permission to enter the land. When the City does any such work, the City may, in addition to its other remedies, assess the cost in whole or in part. 9.Miscellaneous. A. Construction Trailers. Placement of on-site construction trailers and temporary job site offices shall be approved by the CityEngineer. Trailers shall be removed from the subject property within thirty (30) days following the issuance of a certificate of occupancy unless otherwise approved by the City Engineer. B. Postal Service. The Developer shall provide for the maintenance of postal service in accordance with the local Postmaster's request. C. Third Parties. Third parties shall have no recourse against the City under this Agreement. D. Breach of Contract. Breach of the terms of this Agreement by the Developer shall be grounds for denial of building permits. E. Severability. If any portion, section, subsection, sentence, clause, paragraph, or phrase of this Agreement is for any reason held invalid, such decision shall not affect the validity of the remaining portion of this Contract. F. Occupancy. Unless approved in writing by the City Engineer, no one may occupy a building for which a building permit is issued on either a temporary or permanent basis until the streets needed for access have been paved with a bituminous surface and the utilities tested and approved by the city. G. Waivers/Amendments. The action or inaction of the City shall not constitute a waiver or amendment to the provisions of this Contract. To be binding, amendments or waivers shall be in writing, signed by the parties and approved by written resolution of the City Council. The City's failure to promptly take legal action to enforce this Contract shall not be a waiver or release. H. Recording. This Agreement shall run with the land and may be recorded against the title to the property. I. Remedies. Each right, power or remedy herein conferred upon the City is cumulative and in addition to every other right, power or remedy, express or implied, now or hereafter arising, available to City, at law or in equity, or under any other agreement, and each and every right, power and remedy herein set forth or otherwise so existing may be exercised from time to time as often and in such order as may be deemed expedient by the City and shall not be a 239 10 waiver of the right to exercise at any time thereafter any other right, power or remedy. J. Construction Hours. The normal construction hours under this contract shall be from 7:00 a.m. to 9:00 p.m. on weekdays, from 9:00 a.m. to 5:00 p.m. on Saturdays, with no such activity allowed on Sundays or any recognized legal holidays. Construction activities in conjunction with new developments and city improvement projects, including but not limited to grading, utility installation and paving, requiring the use of heavy equipment shall be permitted between the hours of 7:00 a.m. and 6:00 p.m. on any weekday and 9:00 a.m. and 5:00 p.m. on Saturdays. No such activity is permitted on Sundays or public holidays. Operation of all internal combustion engines used for construction or dewatering purposes beyond the normal working hours will require City Council approval. K. Soil Treatment Systems. If soil treatment systems are required, the Developer shall clearly identify in the field and protect from alteration, unless suitable alternative sites are first provided, the two soil treatment sites identified during the site plan process for each lot. This shall be done prior to the issuance of a Grading Permit. Any violation/disturbance of these sites shall render them as unacceptable and replacement sites will need to be located for each violated site in order to obtain a building permit. L. Compliance with Laws, Ordinances, and Regulations. In the development of the site plan, the Developer shall comply with all laws, ordinances, and regulations of the following authorities: 1.City of Chanhassen; 2.State of Minnesota, its agencies, departments and commissions; 3.United States Army Corps of Engineers; 4.Watershed District; 5.Metropolitan Government, its agencies, departments and commissions. M. Proof of Title. Upon request, the Developer shall furnish the City with evidence satisfactory to the City that it has the authority of the fee owners and contract for deed purchasers too enter into this Development Contract. N. Soil Conditions. The Developer acknowledges that the City makes no representations or warranties as to the condition of the soils on the property or its fitness for construction of the improvements or any other purpose for which the Developer may make use of such property. The Developer further agrees that it will indemnify, defend, and hold harmless the City, its governing body members, officers, and employees from any claims or actions arising out of the presence, if any, of hazardous wastes or pollutants on the property, unless hazardous wastes or pollutants were caused to be there by the City. O. Soil Correction. The Developer shall be responsible for soil correction work on the property. The City makes no representation to the Developer concerning the nature of suitability of soils nor the cost of correcting any unsuitable soil conditions which may exist. 240 11 CONSENT Owners of all or part of the subject property, the development of which is governed by the foregoing Site Plan Agreement, affirm and consent to the provisions thereof and agree to be bound by the provisions as the same may apply to that portion of the subject property owned by them. Dated this ____ day of _____________, 20___ By__________________________ _______________________________ STATE OF MINNESOTA ) ( ss COUNTY OF ) The foregoing instrument was acknowledged before me this _____ day of ____________, 20___, by _________________________________. _________________________________ NOTARY PUBLIC DRAFTED BY: City of Chanhassen 7700 Market Boulevard P. O. Box 147 Chanhassen, MN 55317 (952) 227-1100 241 12 MORTGAGE HOLDER CONSENT TO SITE PLAN AGREEMENT , which holds a mortgage on the subject property, the development of which is governed by the foregoing Site Plan Agreement, agrees that the Site Plan Agreement shall remain in full force and effect even if it forecloses on its mortgage. Dated this day of , 20___. (Name and title) STATE OF MINNESOTA ) ( ss. COUNTY OF ) The foregoing instrument was acknowledged before me this day of , 20___, by (name, title and company) . NOTARY PUBLIC DRAFTED BY: City of Chanhassen 7700 Market Boulevard P.O. Box 147 Chanhassen, MN 55317 (952) 227-1100 242 [OFFICIAL BANK LETTERHEAD] IRREVOCABLE LETTER OF CREDIT No. ___________________ Date: _________________ TO:City of Chanhassen 7700 Market Boulevard, Box 147 Chanhassen, Minnesota 55317 Dear Sir or Madam: We hereby issue, for the account of (Name of Developer) and in your favor, our Irrevocable Letter of Credit in the amount of $____________, available to you by your draft drawn on sight on the undersigned bank. The draft must: a) Bear the clause, "Drawn under Letter of Credit No. __________, dated ________________, 2______, of (Name of Bank) "; b) Be signed by the Mayor or City Manager of the City of Chanhassen. c) Be presented for payment at (Address of Bank) , on or before 4:00 p.m. on November 15, 2______. This Letter of Credit shall automatically renew for successive one-year terms unless, at least forty- five (45) days prior to the next annual renewal date (which shall be November 15 of each year), the Bank delivers written notice to the Chanhassen City Manager that it intends to modify the terms of, or cancel, this Letter of Credit. Written notice is effective if sent by certified mail, postage prepaid, and deposited in the U.S. Mail, at least forty-five (45) days prior to the next annual renewal date addressed as follows: Chanhassen City Manager, ChanhassenCity Hall, 7700 Market Boulevard, P.O. Box 147, Chanhassen, MN 55317, and is actually received by the City Manager at least thirty (30) days prior to the renewal date. This Letter of Credit sets forth in full our understanding which shall not in any way be modified, amended, amplified, or limited by reference to any document, instrument, or agreement, whether or not referred to herein. This Letter of Credit is not assignable. This is not a Notation Letter of Credit. More than one draw may be made under this Letter of Credit. This Letter of Credit shall be governed by the most recent revision of the Uniform Customs and Practice for Documentary Credits, International Chamber of Commerce Publication No. 600. We hereby agree that a draft drawn under and in compliance with this Letter of Credit shall be duly honored upon presentation. BY: ____________________________________ Its _____________________________ 243 [OFFICIAL BANK LETTERHEAD] 244 COMMUNITY DEVELOPMENT DEPARTMENT Plannrng Division - 7700 Market Boulevard Mailing Address - P.O. Box 147. Chanhassen, MN 55317 Phone (952) ?27 -1100 tFax. (9521227-1110 Submrtlal Date A--oq /14 CITY OT CIIAI'IIIASSIN APPLICATION FOR DEVELOPMENT REVIEW PC Date cc oate ?l (Refer lo lha approptiate Application Checklist lot rcquired sobmiftal inlomalion lhat l,r,ust accompany this application) E Comprehensive Plan Amendment. ................. E Minor MUSA line for failing on-site sewers ! Conditional Use Permit (CUP) n Single-FamilyResidence n Att others................ E Subdivision (SUB) E Create 3 lots or less E Create over 3 lots ....... . ......( tors) ! Metes & Bounds (2 lots) E Consolidate Lots............ . ... 1<e,rOt Un ,intitrl $600 $100 $325 s425 sTso A s 100$500 as150 ns[,,|,ilhl s100 ! lnterim Use Permit (lUP) ! ln conjunction with Single-Family Residence.. $325 n A others...... .. .... .. $425 D Rezoning (REZ) El Planned Unit Development (PUD) . E Minor Amendment to existing PUD E Lot Line Ad,iustment............. .E Fr"riLt l--.. -. (lncludes $450 escrow for attorney costs). 'Additional egcrow may be requited for other applications through the developmenl contract. Vacataon of Easements/Right-of-way (VAC) (Addational lecordlng fees may apply) Vanance (VAR) .. ..... Wetland Alteration Permit (WAP) I Single-FamilyResidence ! Att others 5300 $200 $150 $275 $100 $500 E A[ others...... E Sign Plan Review... fl site Plan Review (SPR) tA ! Administrative .. -................ t...... (_ thousand square feet) 'lnclude number of CllSlDq employees 'lnc'lde number of 4ql4 employees E Resrdential Orstflcts..... ... .. . Plus $5 per dwelling unit (- Commercial/lndustrial Districts' ..... .. . $500 Plus $10 per 1,000 square feet ot ouiroin! areJ--- U zoning APpeal D Zonlng Ordinance Amendment (ZOA) !qIE: When multiple appllcations are p.ocessed concur.eotly' the approp.iate fee shall be charged for each application. E Notification Sign {c,ty ro instattand remove) " $200 ! Property Owners' LiSt with in 500' lcrty to generate afler pre-app[caton meetrig) . "" '53peraddress(- addresses) ...... .......... s500 units) plv)E Escrow for Recording Documents (check all that n Conditional Use Permit E vacation I Metes & Bounds Subdivision (3 docs.) lnterim Use Permit E Variance D Easements (- easements) S50 Per document fl Site Plan Agreement E Wetland Alterataon Permit a f] Deeds TOTAL FEE:t Description of Proposal: Construction ot cold siorage building and entrance otf of Flying Cloud drive with required site imProvements Property Address or Location 1 O52O GREAT PLAIN BLVD Legal Description Lot 1&2 of Paws & Hooves Addition Parcel # 8.3 3 Wetlands Present?E ves nuo Requested ZoningFringe Business District (BF)Planned Unit Development (PUD) Present Land Use Designation Commercial vacant Total Acreage. Present Zoning Section 1: Application Type (check all that apply) Section 2: Required lnformation ECnecf box if separate narrative is attached Existing Use of Property ...$300 1lrclzz tl,ulr-6o.oayReviewDare qf 4 ZZ- Requested Land Use Designation:Select One 245 Section 3: Proparty Ownor and Appllcant lnformatlon APPLICANT OTHER THAN PROPERTY OUIINER: ln signing this applEation, l, as applksnl represent to have obtained authonzation from the property owne, to file this application I agree to be bound by conditions of aPproval, subject ooly to the right to obiecl at the hearings on the application or during the appeal penod lf lhis application has not been slgned by the property owner, I have attaahed separaie documentation of full legal capacity to file the apdi€alion This application shoulrt-be irocesseO in my name and I am the party whorn the City should contact regarding any mattet p€rtaining to this application I will keep misetf infonned of the deadiines for submission of material and the progress ol 6is applbation l furiher untterstand th;t additional te€s may be charged tor consulting fees, feasibility studies, etc. with an estimate prior to any authonza$on to proceed with the studi I cerlit that the information and exhibits submitted are true and correcl. Name Address' Name RSI Marine Address 1533 3rd Ave W Cityistate/Zip Emaill Shakopee rob@rsima com Sign City/State/Zip Email: Signature: PROJECT ENGINEER (if aPPlicable) James R Hill.lnc Address 2999 w county road 42 fl1OO City/Stat€r'Zp Bumsvill€. mn 55306 Email igcooper@irhinc.com . Rob Scfiatzl€ (es2) 23$2084 (612) 839-9990 5t5t22 . Joel G Coop€r (952) 89G6044 (612) s0&e$0 Contact Phone: PROPERTY OlilNER: ln signing this application, l, as property owner, have full legal capacity to, and hereby do, authorize the filing of this ai'plidtion. I understand thatconditions of approval are binding and agree lo be bound by those condtions, subjeit only to ih; right to object at the hearings or during the appeal periods. I will ke€P mysetf informed ot the deadtines for submission of materialind the progrestof his application. I turther understand that a(Hitional tees may be charged for consulting Ees, leasibility studies. etc. wilh an estimate prior to any authorization to proceed with the study. icertify that the information and exhibits submitted are lrue and correc't Contact Phone: Cell: Fax: Dato Cell Fax: Date Cell Fax This application must be compleled in full and musl b€ accompanied by all infonnalion and plans required by ,ootiJ[t" Cit, Ortinance provisions. Before filing this application, refer to the appoPrbte A0d*xtion Checklist "Ii "oneryiir' tne ptanning Depaturcnt to determine the specific ordinance and applicable Procedural requiremenE and fees. A determination of completeness of the application shall be.made within 15 business days of applioation submittal. A ;-iti,; ;;G;;pptication oeficiencies ahall be mailed to the applicant within 15 business days ot applbation. Contract Phona: Section4: Notificalion lnfotmation I Mail€d Pap€r CoPy n Maabd Paper copy fl Mailed Paper CoPY E tvtaiteo Paper copy INSTRUCTIONS TO APPLICAI{T: Complete all necessary. device-TRtNrFdRM anAAelrver to city along witfi required form fields. then sebct SAVE FORH to save a copy to your docurEnts and payment SUBMIT FORM b send a digital SAVE FOR PRINT FORrrt SUBTTT FORi' ! Property Owner Vra. E Email E Appli:anl Vra: Ll Email fl Engineer Vra: Ll Email D Otre* Vra U Emdl Vlrho Bhould receive coPios of staft T.potts?'O'ift.r Cont ct lrlo E{on: Nam6: Addressl Email: Name copy to the ctty for Procesing 246 RSI MARINE BOAT STORAGE FACILITIES 1. Project Narrative. The project will consist of design and construction of (4) single story boat and watercraft storage facilities. The project is intended to be built in multiple phases, cost and utilization will determine the quantity of buildings to be built in phase 1. All buildings will be submitted for proper building permitting prior to construction. The proposed buildings are designed to maximize future flexibility. Multiple overhead doors are utilized to load and unload boats as well as allow future partitioning of the spaces. The buildings are not intended to be occupied except for loading and unloading of stored units. There are no Full-Time employees and no public access, meaning there is no need for parking on this site. 2. Project Design. a. The building exteriors are designed to be in conformance with the City of Chanhassen chapter 20, Article XXIII design requirements. Earth tone colors have been selected to blend with the natural landscape. Architectural brick tower corner elements will be utilized on the southern and west elevations to create building articulation and hold the corners of the main highway gateway district. Tower elements will have a hipped metal roof feature element. The main building utilizes color integrated CMU rock face block. Wood grain longboard lap siding and architectural insulated metal wall panels. The architectural insulated metal panel will have a stucco finish appearance. These various materials and textures create additional façade articulations. We have incorporated a two-tone color scheme to aid in breaking up the facades and avoiding monolithic exterior elevations. Color integrated overhead doors are utilized to blend with the building colors. This is in lieu of white overheads, to avoid such strong contrast i n building colors. The roof will be standing seam metal roof with color tones to match the building. We have selected a 4:12 roof pitch which was the recommended minimum pitch listed in the city guidelines. 247 3. Landscaping a. The site will be landscaped in accordance with city requirements. Additional landscape beds and groupings have been added to the south and west elevations to assist in the appearance of building articulations. b. The site usage does not necessitate the need for parking, so this helps reduc e the amount of required asphalt paving and thus reduces heat island effect. c. Foundation plantings on the outward facing building facades has been provided. 4. Retaining Wall a. Retaining wall locations and heights are indicated on civil plans. The design and engineering team anticipates on utilizing a gravity retaining wall system (Similar to RECON wall systems). All retaining walls over 4 feet will be fully engineered prior to installation. 5. Fencing and Gates a. The owner would like to maintain the option to add in security fencing and entry gates. NO gates would exceed 8 feet in height and any installed gates and fencing would be installed outside the required front yard setbacks. 6. Signs a. No building or site signage is being requested at this time. Should any signage be proposed for future use a full sign submittal package will be prepared for City review and approval. 7. Traffic Generation and Parking a. The site will have minimal traffic throughout the year. More traffic will be seen in the spring and fall as boats and watercraft are either being removed or placed into storage. There are no employees that will be working on this site and no public traffic to this site or the facilities. The site is unoccupied except for loading and unloading of the units into storage. Because of the site being unoccupied and no public access parking is not a necessity. 8. Lighting a. New exterior site and building lighting is being proposed. All new lighting will be decorative LED with housing colors to match the building materials. Please refer to submitted photometric plan for additional information. 248 9. Dumpster enclosure a. No dumpster enclosure is being proposed for the site. The buildings are unoccupied storage and site operations will not produce trash. 10. Hazardous Materials a. No Hazardous materials will be stored on-site. 11. Rooftop Equipment and Screening a. No Rooftop equipment is being proposed for the buildings. No Rooftop screening will be required as there is no rooftop equipment. Any heating for the building will be through interior Gas Fired Units or Furnaces. No AC equipment will be installed at this time. Should AC units be installed in the future they would be ground mounted and screened with landscaping. 249 RESPONSES TO CITY OF CHANHASSEN Planning: 1. The buildings must meet the requirements of Chapter 20, Article XXlll, 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 facade modulation- stepping back/ forward or extending a portion of the fagade and/or vertical division using different textures or materials. Provided, refer to elevations. b. The south and west elevations must include architectural detailing to facilitate the reduction of the City' s facade transparency requirement, as outlined in section 20- 1068. Provided, refer to elevations. Tilt-up concrete panels must be grid or brick like in appearance. Provided, refer to elevations. d. Accent materials ( metal, glass block, spandrel glass, etc.) are limited to 15 percent of the building' s facade. Provided, refer to elevations Flat roofs should be defined with an ornamental parapet or cornice. Roof is sloped 4:12 which meets the requirements of the code. 2. A complete site plan application will be required concurrent with the request to rezone to Planned Unit Development ( PUD). Application has been submitted' 3. A complete variance request for the use of holding tanks will be required concurrent with the requesttorezonetoPlannedUnitDevelopment(PUD).Variancehasbeensubmitted' 4. An expanded narrative should be provided addressing the proposed use of the site. The narrative should address business model, number of employees present, parking needs, expected traffic generation and other similar elements Refer to expanded narrative 5,Proposedfenceandgateshallnotexceedeightfeetinheisht,shallbelocatedoutsideof required front yard setbacks and sight triangle if not of an open design' and shall be located behind required landscape buffers. Fencing will meet these requirements c e 5. A proposed sign plan shall be provided as part of the site plan application' We are not requesting any signage at this time. 250 8. lnformation on the heights and materials shall be provided for the proposed retaining walls. lnformation is added to civil. Full engineering drawings of retaining wall will be provided based on pla nning approval. Landscaping: 1. Must include existing trees and woods on existing conditions sheet and update the canopy coverage calculations. The trees are located on the existing conditions exhibit. a. Must meet or exceed required replacement tree planting for the site' 2. Must submit a tree inventory for the site. We have submitted a tree inventory with tree preservation 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. We are ok with no mow tur[. 4. Must meet the buffer yard plantings as required by section 20- 7L76(tl' 5. Must include foundation plantings on the outward facing sides ofthe 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' A parking island was added. The remainder of asphalt is drive lane and does not accommodate parking islands. A variance is being applied for' Engineering: 1 Existing easements must be vacated prior to recording the final plat' The existing easements will be vacated prlor to recording final plat The existing easements have been described for the vacation' Ten- foot public drainage and utility easements will be required along all property lines' The final plat has a perimeter 10' easement for public drainage and utilities' Publicdrainageandutilityeasementswillberequiredoverpublicutilitieswithdimensions adequate to properly repair and maintain the utility( i'e water main)' The final plat has utility easements over the proposed public utilities' 2 3 7. A proposed lighting plan shall be provided as part ofthe site plan application. Lighting photometric ptan is included in the drawing package. 251 4. Status ofthe two parcels abutting the preliminary plat' s western property lines listed as Parcel lD: Gap" must be resolved prior to recording of the final plat. The property gap will be resolved. 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. We will obtain Carver County permits for construction activities and ingress/egress. 5. A turnaround should be included meeting the requirements of section 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. A turnaround for the fire truck is provided at the end of the drive between the buildings with a 48' radius. 7. Existing Conditions Survey: a. Topographic data 100 feet beyond the property boundary. We have added topographic to go 100 feet beyond the property line. b. lllustration 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). We have included the existing improved FlyinB Cloud improvements. 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, fire hydrants, electric and telephone lines, and street liShts. The direction, distance to, and size of such facilities shall be indicated. We have added the adjacent utilities with rims and inverts. d. Sewage treatment systems and associated conveyance systems The existing sanitary sewer has been added e. Existing easements and associated recording document numbers' Existing easements have been included f. Property information within 150 feet of the property' s boundary' We have added adjacent property information within l'50 feet of the boundary' g. Retaining wall elevations. The existing retaining walls are shown h. Show buffer and wetland setbacks for managed type 2 wetland' We are not aware of any wetlands on the property' 8. Retaining walls over four feet in height require an engineered design' A structural engineer will design all retaining walls over 4 feet 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' The retaining walls within the 10'drainage and utility easements will require an EncroachmentASreement.ThewallswillbeconstructedwithoutencroachinSuntoadjacent properties. 252 Water Resources: 1. A permit from the Lower Minnesota River Watershed District( LMRWD) will be required. Staff believes the proposed stormwater will tri8ger LMRWD Rule D. A permit from the Lower Minnesota River Watershed will be obtained prior to construction. 2. Verify with LMRWD if the project will trigger Rule F- Steep Slopes' The site is not located within a steep slope per Lower Minnesota River watershed District maps. 3. Must address water Resources Engineer' s (wRE) comments on stormwater design transmitted via email dated February 4, 2022. a.H&Hmodelsshouldbeupdatedperthesecommentspriortositeplansubmittal. ThestormwaterdesignaddressestherequirementsoftheLowerMinnesotaRiVer WatershedRuleD.andthecity,sstormwaterrequirements.Wehaveincludedthe HydroCAD and P8 models for review for water quality and quantity requirements' 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 lll and lV 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. We will develop a standalone SWPPP and will have a NDPES permit in place prior to any earth moving activitles. 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. It is understood that the on-site watermain is for fire suppression only and not for domestic use. The site is intended to be utilized for cold storage with no permanent on-site personnel. 12. lf thesitewill have anyfixtures requiringthe use of water other than for fire suppression needs, a private source of water supply must be used for those fixtures. There will be no on-site water usage with the current plan. 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. It is understood that the water fees will be paid when portable water is available to the site. 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. It is understood there will be connection fees for sanitary sewer when the public sanitary sewer becomes f unctional. 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. The water main has been extended through the property to the eastern property line for future extension of the water system. 253 4. Buildings and parking areas must meet required wetland setbacks. We are not aware of any wetlands onsite. 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. The Geotechnical lnvestigation has been ordered and will be provided when available, the timeline for this is 3 to 4 weeks from today's date. 5. HydroCAD models should be submitted in addition to reports for review by the WRE. The HydroCAD model and P8 model have been submitted for review 7. Stormwater facilities must meet the requirements of section 19- 144 of the City Code. It is our opinion that the stormwater facilities designed for this project are in compliance with 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. A stormwater maintenance agreement, operations and maintenance plan will be provided. g. lf 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 U nderstood Pa rk: 1. lf the property is subdivided in the future, Park fees will be collected at the rate in affect at the time of platting, minus the S 2,800.00 already paid. 1. All buildings will require fire sprinkler systems. Buildings will be sprinkled' 2. All buildingswill needafirepanel (oronecentral location panel) to monitorthe fire sprinkler systems. Fire panel will be provided. 3.Firehydrant(s}willberequired.currentlyshowingonpreliminaryutilityplan.HydrantWilIbe provided, refer to plans for locations' 4. Fire access roads/ driveway grading not to exceed 10% in grade Truck turn around was added with appropriate grades. Access to back of buildings is under 350' Fire: 254 MATERIAL INDEX-PLANS,SECTIONS STONE FINISHED LUMBER ROUGH LUMBER PLYWOOD POURED CONCRETE CONCRETE BLOCK FILLED CONCRETE BLOCK FACE BRICK GRAVEL FILL CERAMIC TILE COMPACTED FILL EARTH CONSTRUCT NEW WALL EXISTING WALL TO REMAIN EXISTING WALL TO BE REMOVED BITUMINOUS PAVING ACOUSTIC TILE PRECAST CONCRETE DRYWALL STEEL RIGID INSULATION BATT INSULATION WALL TYPEA1 SECTION CUT SYMBOL (WALL SECTIONS) PLAN DETAIL / ENLARGED PLAN SYMBOL DETAIL CUT SYMBOL REFERENCE SYMBOLS DRAWING SYMBOLS SECTION DESIGNATION (NUMBER FOR CROSS SECTION & LETTER FOR WALL SECTION) DRAWING NUMBER ON WHICH DETAIL APPEARS WINDOW TAG REVISION NUMBER DOOR TAG DRAWING NUMBER ON WHICH SECTION APPEARS DRAWING NUMBER ON WHICH DETAIL APPEARS DETAIL NUMBER DETAIL NUMBER ELEVATION MARK - EXISTING ELEVATION MARK - NEW STAIRWAY DIRECTION INDICATION COLUMN LINE DESIGNATION- NEW0 1 A101 1 A101 1 A101 101 1 W1 UP Name Elevation Name Elevation KEYNOTE MARK - ACCESSORIES KEYNOTE MARK - DEMOLITION NOTES 10'-0" A.F.F.SPOT ELEVATION MARKER ? ? ?KEYNOTE MARK - PLAN NOTES PROJECT DATA GOVERNING AUTHORITY - CITY OF CHANHASSEN COMMUNITY DEVELOPMENT DEPARTMENT CLASS OF CONSTRUCTION III-B OCCUPANCY CLASSIFICATION MODERATE-HAZARD STORAGE (S-1) LOCAL ZONING AUTHORITY CITY OF CHANHASSEN BUILDING SPRINKLED YES INTERNATIONAL BUILDING CODE 2015REFERENCED CODE BUILDING AREA: BUILDING A: BUILDING B: BUILDING C: BUILDING D: TOTAL BUILDING SQ. FT.: 20,225 S.F. 22,848 S.F. 22,848 S.F. 86,146 S.F. 20,225 S.F. NUMBER OF EMPLOYEES 0 Reproducing Is Prohibited. Return Upon Request. ©Copyright. This Print/Computer File Gries Architectural Group, Inc. Use Only For Purpose Which Loaned. Copying Or Is The Exclusive Property Of date: job: d. by: rev.:GriesArchitectural Group Inc.500 North Commercial StreetNeenah, Wisconsin 54956Phone: 920-722-2445 Fax: 920-722-6605www.gries.designCITY SUBMITTAL 05/06/20225/6/2022 3:31:37 PMZ:\2022\22-054 RSI Marine Storage\22-054 Revit\22-054_RSI Marine Storage.rvtC-S ZTS 05-06-2022 22-054 ---A NEW STORAGE FACILITY FOR:RSI MARINE STORAGECHANHASSEN, MINNESOTANOTE: ALL TRADES SHALL CROSS REFERENCE ALL CONSTRUCTION DOCUMENTS FOR COORDINATION AND SCOPE OF WORK. VICINITY PLAN INDICATES PROJECT LOCATION NO SCALE NOTE: THE INTENT AND MEANING OF THE CONSTRUCTION DOCUMENTS IS THAT THE CONTRACTOR UNDER THE TERMS OF THE CONTRACT SHALL TAKE ALL ACTIONS NECESSARY AND REQUIRED TO PROVIDE ALL LABOR, MATERIALS, SUPPLIES, EQUIPMENT, TRANSPORTATION, FACILITIES AND APPURTENANCES WHICH ARE INDICATED OR REASONABLY IMPLIED BY EACH DRAWING AND EACH SECTION OF THE SPECIFICATIONS, ALL OF WHICH ARE COLLECTIVELY NECESSARY AND REQUIRED FOR THE CONSTRUCTION OF THE DESCRIBED STRUCTURES AND FACILITIES. A NEW STORAGE FACILITY FOR: RSI MARINE STORAGE CHANHASSEN, MINNESOTA SHEET INDEX 10520 GREAT PLAINS BLVD CHANHASSEN, MINNESOTA C-S COVER SHEET CIVIL C-1.0 TITLE SHEET C-1.1 EXISTING CONDITIONS C-1.2 EXISTING/PROPOSED DRAINAGE MAP C-1.3 SITE PLAN C-1.4 FUTURE SITE PLAN C-2.0 PRELIMINARY PLAT C-3.0 PRELIMINARY EROSION AND SEDIMENT CONTROL PLAN C-3.1 EROSION CONTROL DETAILS C-3.2 EROSION CONTROL DETAILS C-3.3 EROSION CONTROL DETAILS C-4.0 PRELIMINARY GRADING PLAN C-5.0 PRELIMINARY UTILITY PLAN C-6.1 LANDSCAPE PLAN C-6.2 LANDSCAPE PLAN ARCHITECTURAL A-0.1 SITE PLAN PH-1 LIGHTING PHOTOMETRIC A-1.1 OVERALL FLOOR PLAN A-1.2 BUILDING A - FLOOR PLAN A-1.3 BUILDING B - FLOOR PLAN A-1.4 BUILDING C - FLOOR PLAN A-1.5 BUILDING D - FLOOR PLAN A-3.1 DOOR & WINDOW SCHEDULE A-4.1 EXTERIOR ELEVATIONS A-4.2 EXTERIOR ELEVATIONS A-4.3 EXTERIOR ELEVATIONS A-4.4 EXTERIOR ELEVATIONS A-11.1 RENDERINGS PROJECT LOCATION ARCHITECTURAL GRIES ARCHITECTURAL GROUP, INC. 500 N. COMMERCIAL STREET NEENAH, WI 54956 PH (920)722-2445 FX (920)722-6605 CONTACT: BRANNIN GRIES, AIA CIVIL JAMES R. HILL, INC. 2999 WEST COUNTY ROAD 42 SUITE #100 BURNSVILLE, MINNESOTA 55306 PH (952) 980-6044 FX (952) 890-6244 CONTACT: JOEL COOPER, PE OWNER RSI MARINE 1533 WEST 3RD AVENUE SHAKOPEE, MN 55379 PH (952) 233-2084 CONTACT: ROB SCHATZLE CONSULTANTS 255 SB-1 llllllllllllllllllllllllllllllllllll∅ ∅ ∅ ∅ ∅ ∅ ∅ ∅ 256 SB-1 257 258 259 260 POINT #NORTHING EASTING DESCRIPTION 284 163489.1035 559006.6578 19 Siberian Elm 2064 163328.4604 559720.9838 10 Box Elder 2109 163647.6438 559266.113 10 Siberian Elm 2110 163682.2953 559333.0147 10 Siberian Elm 2111 163697.7671 559340.1056 10 Box Elder 2112 163704.4823 559353.4803 10 Siberian Elm 2113 163693.4111 559360.3703 10 Siberian Elm 2114 163686.814 559370.5764 13,8 Siberian Elm 2116 163725.1427 559458.4853 25,18 Hackberry 2117 163727.2418 559493.5026 16 Siberian Elm 2121 163781.9982 559676.3746 18,13,9 Hackberry 2122 163774.6774 559674.5879 13,12 Hackberry 2130 163527.6634 559760.2088 19 Box Elder 2131 163483.3705 559758.9706 10 Box Elder 2177 163518.8967 559089.5044 22,20,20 Siberian Elm 2178 163509.981 559096.7367 21 American Elm 2179 163506.6533 559101.5044 17 Siberian Elm 2180 163504.632 559072.3306 20 Siberian Elm 2181 163526.3029 559058.5652 18 Siberian Elm 2182 163501.5306 559047.3181 28,21,16 Siberian Elm 2183 163489.734 559038.2306 17 Siberian Elm 2185 163479.4641 559000.124 26 Siberian Elm 2186 163481.1005 558998.3376 16 Siberian Elm 2187 163493.3669 558977.9876 13 Siberian Elm 2188 163572.0269 558991.8681 16 Siberian Elm 2189 163588.0816 559009.0521 22,21 Siberian Elm POINT #NORTHING EASTING DESCRIPTION 2063 163355.6178 559746.9207 10 Box Elder 2065 163195.2848 559225.6137 10 American Elm 2066 163180.7281 559208.1095 10 American Elm 2067 163271.0412 559253.8932 11 Box Elder 2068 163275.5904 559250.5129 13 Box Elder 2069 163227.3123 559337.0193 10 Box Elder 2070 163241.7047 559335.3185 13 Box Elder 2071 163273.6354 559228.7358 18 Box Elder 2072 163262.9868 559215.0596 18,8 Box Elder 2073 163261.0065 559204.9461 10,10 Box Elder 2074 163267.056 559185.3021 18,15 Box Elder 2075 163256.8953 559187.1263 12 Box Elder 2076 163271.1905 559126.6369 23,23 Box Elder 2077 163241.0974 559128.465 14 Willow 2078 163279.0527 559194.0803 13 Norway Spruce 2079 163276.7633 559219.0094 16 Norway Spruce 2080 163279.8066 559235.2374 14 Norway Spruce 2081 163273.3716 559357.7188 24 Cottonwood 2082 163286.8736 559391.4575 20 Willow 2083 163287.4293 559393.5576 10 Willow 2084 163284.6757 559395.5776 15 Willow 2085 163282.6964 559396.3653 11 Willow 2086 163280.2335 559414.7902 24,19 Willow 2087 163275.4887 559404.0825 10 Willow 2088 163284.0832 559417.8545 10 Box Elder 2089 163284.8677 559422.2367 18 Willow 2090 163462.3939 559529.1046 22 Cottonwood 2091 163463.636 559528.1997 16 Willow 2092 163451.283 559527.5783 22 Cottonwood 2093 163454.5051 559426.4161 10,10 Siberian Elm 2094 163416.2834 559332.9672 15 Cottonwood 2095 163419.1856 559333.1512 13 Cottonwood 2096 163389.5354 559314.7313 10,10,9,9,8 Willow 2097 163510.5306 559288.2999 23,16 Siberian Elm 2098 163526.1398 559295.9915 23,16,11 Siberian Elm 2099 163542.3688 559217.9215 20 Hackberry 2100 163524.6972 559183.2516 33 Siberian Elm 2101 163520.6585 559168.6191 12 Siberian Elm 2102 163565.3894 559226.8401 18,11,11 Siberian Elm 2103 163592.2276 559257.2537 10 Siberian Elm 2104 163597.5324 559300.3117 11 Siberian Elm 2105 163602.3112 559320.8347 12 Siberian Elm 2106 163582.9878 559329.5233 22 Siberian Elm 2107 163645.4854 559330.2428 11 Siberian Elm 2108 163636.1626 559298.9266 10 Siberian Elm 2115 163664.2324 559394.1403 16 Siberian Elm 2118 163723.9662 559504.2211 16 Siberian Elm 2119 163727.9508 559514.5144 16 Siberian Elm 2120 163760.8477 559632.8094 18 Hackberry 2123 163549.6972 559718.6603 12 Box Elder 2124 163542.1207 559725.5924 14 Box Elder 2125 163536.5738 559715.3178 17 Box Elder 2126 163524.4259 559703.9858 21 Box Elder 2127 163507.9459 559708.308 26,13 Box Elder 2128 163505.3951 559701.7135 16 Box Elder 2129 163529.6273 559749.4411 21 Box Elder 2132 163475.986 559750.4401 17 Box Elder 2133 163475.3578 559739.3023 24 Box Elder 2134 163475.2682 559699.2584 17 Box Elder 2135 163481.3072 559674.6335 22 Box Elder 2136 163499.545 559650.6506 14 Siberian Elm 2137 163464.0451 559655.1968 10 Box Elder 2138 163453.0323 559642.9052 11 Box Elder 2139 163444.5842 559650.9688 16 Box Elder 2140 163446.1682 559645.4912 19 Box Elder 2141 163437.6525 559629.3954 12 Box Elder 2142 163423.7391 559626.0053 17 Box Elder 2143 163420.4737 559631.8478 10 Box Elder 2144 163424.4989 559609.5923 11 Box Elder 2145 163429.5294 559588.2944 11,10,8,7 Willow 2146 163402.2477 559623.2356 16 Box Elder 2147 163398.4829 559631.1674 14 Box Elder 2148 163394.0157 559625.397 11 Box Elder 2149 163414.2903 559637.8216 10 Box Elder 2150 163393.2333 559662.8366 21 Hackberry 2151 163362.0785 559672.7099 11 Green Ash 2152 163356.6224 559660.664 18 Green Ash 2153 163358.3436 559687.7352 12 Apple 2154 163390.0879 559687.5186 18,17 Green Ash 2155 163398.6755 559701.5773 12 Box Elder 2156 163405.54 559709.5845 19 Box Elder 2157 163410.3257 559719.3798 17 American Elm 2158 163409.8838 559719.8286 10 American Elm 2159 163409.3412 559716.1495 17 Box Elder 2160 163435.7328 559683.3349 12 Box Elder 2161 163442.5314 559725.2941 23 Box Elder 2162 163468.3259 559724.804 20 Box Elder 2163 163427.3785 559738.5248 20 American Elm 2164 163414.7486 559744.3545 16 Box Elder 2165 163404.2404 559728.2712 19 Box Elder 2166 163413.3113 559752.3512 27 Box Elder 2167 163355.6654 559685.0331 16 Box Elder 2168 163336.8508 559678.7985 12 Red Cedar 2169 163336.7448 559675.9334 10 Red Cedar 2170 163339.3436 559636.4676 22 Siberian Elm 2171 163331.9105 559624.7012 10 Box Elder 2172 163336.0342 559620.981 11 Red Cedar 2173 163315.0956 559619.9223 11 Box Elder 2174 163323.759 559614.341 10 Box Elder 2175 163319.3361 559595.6051 10 Box Elder 2176 163553.0233 559139.7664 14 Siberian Elm 261 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.262 SB-1 llllllllllllllllllllllllllllllllllll263 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: 6.55 AC PROPOSED (DESIGN) IMPERVIOUS AREA:2.99 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. 264 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] 265 266 267 SB-1 268 269 270 271 272 273 274 PARKING AREA PHASE I BUILDING 100' x 200' PHASE I BUILDING 100' x 200' PHASE I BUILDING PHASE I BUILDING 100' x 225' 100' x 225' BUILDING B BUILDING A BUILDING D BUILDING C F L Y I N G C L O U D S D R I V EGREAT PLAINS BLVDDETENTION PONDReproducing Is Prohibited. Return Upon Request. ©Copyright. This Print/Computer File Gries Architectural Group, Inc. Use Only For Purpose Which Loaned. Copying Or Is The Exclusive Property Of date: job: d. by: rev.:GriesArchitectural Group Inc.500 North Commercial StreetNeenah, Wisconsin 54956Phone: 920-722-2445 Fax: 920-722-6605www.gries.designCITY SUBMITTAL 05/06/20227/5/2022 8:53:33 AMZ:\2022\22-054 RSI Marine Storage\22-054 Revit\22-054_RSI Marine Storage.rvtA-0.1 BJK, ZTS 05-06-2022 22-054A NEW STORAGE FACILITY FOR:RSI MARINE STORAGECHANHASSEN, MINNESOTA1" = 50'-0"A-0.1 1 SITE PLAN 275 276 A-1.2 1 A-1.3 1 A-1.4 1 A-1.5 1100'-9 1/8"226'-8 3/4"79'-11 1/4"100'-9 1/8"31'-6 3/4"226'-8 3/4" 200'-8 3/4"200'-8 3/4"31'-6 3/4"100'-9 1/8"100'-9 1/8"25'-0"24'-0"BUILDING ABUILDING B BUILDING CBUILDING D Reproducing Is Prohibited. Return Upon Request. ©Copyright. This Print/Computer File Gries Architectural Group, Inc. Use Only For Purpose Which Loaned. Copying Or Is The Exclusive Property Of date: job: d. by: rev.:GriesArchitectural Group Inc.500 North Commercial StreetNeenah, Wisconsin 54956Phone: 920-722-2445 Fax: 920-722-6605www.gries.designCITY SUBMITTAL 05/06/20225/6/2022 1:09:39 PMZ:\2022\22-054 RSI Marine Storage\22-054 Revit\22-054_RSI Marine Storage.rvtA-1.1 05-06-2022 22-054A NEW STORAGE FACILITY FOR:RSI MARINE STORAGECHANHASSEN, MINNESOTA1/16" = 1'-0"A-1.1 1 FIRST FLOOR PLAN- OVERALL 277 A101A100 A102 A103 A104 A105 A106 A107 A108 3'-4 3/4" 3'-4" 1'-4" 22'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 22'-0" 1'-4"3'-4"3'-4 3/4" 33'-10"6"25'-6"6"25'-6"6"25'-6"6"25'-6"6"25'-6"6"33'-10"98'-2 3/8"200'-1 1/2" A A A A A A 4'-9" 6" 4'-9"4'-9" 6" 4'-9"4'-9" 6" 4'-9"4'-9" 6" 4'-9"4'-9" 6" 4'-9"4'-9" 6" 4'-9"100'-5 1/2"25'-0"24'-0"2'-0"2'-0" 24'-0 3/4"153'-0 3/4"78'-2 1/8"27'-0 3/4" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 4'-0 3/4" A109 A110 A111 A112 A113 A114 Reproducing Is Prohibited. Return Upon Request. ©Copyright. This Print/Computer File Gries Architectural Group, Inc. Use Only For Purpose Which Loaned. Copying Or Is The Exclusive Property Of date: job: d. by: rev.:GriesArchitectural Group Inc.500 North Commercial StreetNeenah, Wisconsin 54956Phone: 920-722-2445 Fax: 920-722-6605www.gries.designCITY SUBMITTAL 05/06/20225/6/2022 1:09:41 PMZ:\2022\22-054 RSI Marine Storage\22-054 Revit\22-054_RSI Marine Storage.rvtA-1.2 Author 05-06-2022 22-054 12/19/08A NEW STORAGE FACILITY FOR:RSI MARINE STORAGECHANHASSEN, MINNESOTA1/8" = 1'-0"A-1.2 1 BUILDING A - FLOOR PLAN 278 B100 B101 B102 B103 B104 B105 B106 B107 B108 A A A A A A 4'-0 3/4" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 27'-0 3/4" 25'-0"24'-0 3/4"153'-0 3/4"24'-0"78'-5 3/4"1'-8 3/8"2'-0"200'-5 1/8" 3'-8 3/8" 3'-4" 1'-4" 22'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 22'-0" 1'-4" 3'-4" 3'-4 3/4" 4'-9" 6" 4'-9"4'-9" 6" 4'-9"4'-9" 6" 4'-9"4'-9" 6" 4'-9"4'-9" 6" 4'-9"4'-9" 6" 4'-9" 33'-10" 6" 25'-6" 6" 25'-6" 6" 25'-6" 6" 25'-6" 6" 25'-6" 6" 33'-10"98'-2 3/8"14'-2 1/8"16'-0"12'-0"16'-0"12'-0"8'-0"3 5/8"B109 B110 B111 B112 B113 B114B117B116B115 Reproducing Is Prohibited. Return Upon Request. ©Copyright. This Print/Computer File Gries Architectural Group, Inc. Use Only For Purpose Which Loaned. Copying Or Is The Exclusive Property Of date: job: d. by: rev.:GriesArchitectural Group Inc.500 North Commercial StreetNeenah, Wisconsin 54956Phone: 920-722-2445 Fax: 920-722-6605www.gries.designCITY SUBMITTAL 05/06/20225/6/2022 1:09:42 PMZ:\2022\22-054 RSI Marine Storage\22-054 Revit\22-054_RSI Marine Storage.rvtA-1.3 Author 05-06-2022 22-054 05/03/22A NEW STORAGE FACILITY FOR:RSI MARINE STORAGECHANHASSEN, MINNESOTA1/8" = 1'-0"A-1.3 1 BUILDING B - FLOOR PLAN 279 C100C101C102C103C104C105C106C107C108C109226'-1 1/2"27'-0 3/4" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 27'-0 3/4"100'-5 1/2"33'-10"6"25'-6"6"25'-6"6"25'-6"6"25'-6"6"25'-6"6"25'-6"6"33'-10"98'-6"4'-9"6"4'-9"4'-9"6"4'-9"4'-9"6"4'-9"4'-9"6"4'-9"4'-9"6"4'-9"4'-9"6"4'-9"4'-9"6"4'-9"3'-4 3/4" 3'-4" 1'-4" 22'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 22'-0" 1'-4" 3'-4" 3'-4 3/4"226'-1 1/2"AAAAAAAC110C111C112C113C114C115C116Reproducing Is Prohibited. Return Upon Request.©Copyright. This Print/Computer FileGries Architectural Group, Inc.Use Only For Purpose Which Loaned. Copying OrIs The Exclusive Property Ofdate:job:d. by:rev.:GriesArchitectural Group Inc.500 North Commercial StreetNeenah, Wisconsin 54956Phone: 920-722-2445 Fax: 920-722-6605www.gries.designCITY SUBMITTAL 05/06/20225/6/2022 1:09:43 PMZ:\2022\22-054 RSI Marine Storage\22-054 Revit\22-054_RSI Marine Storage.rvtA-1.4Author05-06-202222-05405/03/22A NEW STORAGE FACILITY FOR:RSI MARINE STORAGECHANHASSEN, MINNESOTA1/8" = 1'-0"A-1.41BUILDING C - FLOOR PLAN 280 D100D101D102D103D104D105D106D107D108D1093'-8 3/8" 3'-4" 1'-4" 22'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 22'-0" 1'-4" 3'-4" 3'-4 3/4"4'-9"6"4'-9"4'-9"6"4'-9"4'-9"6"4'-9"4'-9"6"4'-9"4'-9"6"4'-9"4'-9"6"4'-9"4'-9"6"4'-9"33'-10"6"25'-6"6"25'-6"6"25'-6"6"25'-6"6"25'-6"6"25'-6"6"33'-10"98'-6"AAAAAAA14'-2 1/8" 16'-0" 12'-0" 16'-0" 12'-0" 16'-0" 14'-7"100'-9 1/8"226'-5 1/8"27'-4 3/8" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 10'-0" 16'-0" 27'-0 3/4"D116D115D114D113D112D111D110D117D118D119Reproducing Is Prohibited. Return Upon Request.©Copyright. This Print/Computer FileGries Architectural Group, Inc.Use Only For Purpose Which Loaned. Copying OrIs The Exclusive Property Ofdate:job:d. by:rev.:GriesArchitectural Group Inc.500 North Commercial StreetNeenah, Wisconsin 54956Phone: 920-722-2445 Fax: 920-722-6605www.gries.designCITY SUBMITTAL 05/06/20225/6/2022 1:09:44 PMZ:\2022\22-054 RSI Marine Storage\22-054 Revit\22-054_RSI Marine Storage.rvtA-1.5Author05-06-202222-05405/03/22A NEW STORAGE FACILITY FOR:RSI MARINE STORAGECHANHASSEN, MINNESOTA1/8" = 1'-0"A-1.51BUILDING D - FLOOR PLAN 281 HOLLOW METAL (GALVANIZED). PAINTED, INSULATED1" THK., PPG SOLARBAN 60, CLEAR, TEMP. INSULATED GLAZING (STD. NARROW LITE)AOVERHEAD DOORBSEE SCHED.SCHED.SEESEE SCHED.SEE SCHED.HOLLOW METALPAINTED1ALUMINUM, STORE-FRONT FRAME (2"x4 1/2"), CLEAR ANODIZED1" THK., PPG SOLARBAN 60, TEMP. INSULATED GLAZING210'-0" 8'-0"ALUMINUM, STORE-FRONT FRAME (2"x4 1/2"), CLEAR ANODIZED1" THK., PPG SOLARBAN 60, TEMP. INSULATED GLAZING3ALUMINUM, STORE-FRONT FRAME (2"x4 1/2"), CLEAR ANODIZED1" THK., PPG SOLARBAN 60, TEMP. INSULATED GLAZING412'-0" 4'-0"10'-0" 8'-0"18'-0"16'-0"18'-0"SEE SCHED. 2"2"SCHED.SEE2"2" 4'-1" 2" 3'-5" 2"16'-0"2" EQ.2"EQ.2"EQ.2"EQ. 2"2" 4'-1" 2" 3'-5" 2"2" EQ.2"EQ. 2"8'-0"2"3'-8"2"16'-0"2" EQ.2"EQ.2"EQ.2"EQ. 2"GENERAL DOOR & WINDOW NOTES:• VERIFY ALL OPENING DIMENSIONS PRIOR TO FABRICATION OR CONSTRUCTION OF ALL DOORS & FRAMES.• ALL HARDWARE TO BE AMERICANS WITH DISABILITIES ACT (A.D.A.) COMPLIANT.• PROPER EXIT HARDWARE IS REQUIRED ON ALL EXIT AND EXIT ACCESS DOORS. HARDWARE SHALL COMPLY WITH REQUIREMENTS OF IBC SECTION 1008.1.8 THRU 1008.1.9.• ALL FRAMES TO BE FIELD VERIFIED PRIOR TO FABRICATION BY WINDOW SUPPLIER.• ALL GLAZING IN HAZARDOUS IMPACT AREAS SHALL BE SAFETY GLAZING IN ACCORDANCE WITH SECTION 2406.• ALL HOLLOW METAL DOORS/FRAMES SHALL BE WELDED. NO KNOCK DOWN FRAMES PERMITTED.• ALL EXPOSED STEEL LINTELS TO BE PRIMED & PAINTED PER SPECIFICATION.• ALL EXTERIOR HOLLOW METAL EXIT DOORS TO HAVE LATCH GUARDS AND CLOSERS.• ALUMINUM ENTRANCE DOORS SHALL BE EQUIPPED WITH CYLINDER LOCK, INTERIOR TURN-LOCK, SURFACE MOUNTED SELF CLOSER AND DOOR STOP.• STANDARD ROUND PUSH/PULLS UNLESS NOTED OTHERWISE. FINISH TO MATCH DOORS.• ALL KEYING SHALL BE COORDINATED AND VERIFIED WITH OWNER AND/OR OWNER'S REPRESENTATIVE.• ALL INTERIOR ALUMINUM FRAMES SHALL HAVE A MAXIMUM 1/8" CAULK JOINT AROUND PERIMETER.6" MTL. STUDS @ 16" O.C.NOTE:ALL EXPOSED C.M.U. OUTSIDE CORNERS @ WALLS, OPENING JAMBS & UNFINISHED SILL SHALL HAVE SQUARE CORNERS, TYP.NOTE:ALL GYP. BOARD SHALL EXTEND TO FULL HEIGHT OF STUD WALL, OR TO BOT. OF GYP. BD. CLG.(REFER TO REFL. CLG. PLANS). ALL GYP. BD. SHALL EXTEND 6" ABOVE HIGHEST ADJACENT CEILING, UNLESS NOTED OTHERWISE. ALL STUDS SHALL BE ADEQUATELY SUPPORTED AS TO MAINTAIN A RIGID WALL ASSEMBLY.5/8"6"5/8"7 1/4"ASTUD & GYP. BD., FULL HT.5/8" QUIET ROCK, EACH SIDENOTE:MTL. STUD SIZES & GUAGES FOR INTERIOR NON-BRG. WALLS:3 5/8", 25 GA., 13'-6" HIGH @ 16" O.C., 11'-9" @ 24" O.C.3 5/8", 22 GA., 15'-3" HIGH @ 16" O.C., 13'-4" @ 24" O.C.3 5/8", 20 GA., 15'-11" HIGH @ 16" O.C., 13'-11" @ 24" O.C.6", 25 GA., 20'-0" HIGH @ 16" O.C., 17'-6" @ 24" O.C.6", 22 GA., 22'-9" HIGH @ 16" O.C., 19'-11" @ 24" O.C.3 5/8", 20 GA., 23'-9" HIGH @ 16" O.C., 20'-9" @ 24" O.C.(THESE STUD HEIGHTS ARE BASED ON HAVING (1) LAYER OF DRYWALL EACH FACE).NOTE:18 GA. STUDS @ DOOR JAMBS.Reproducing Is Prohibited. Return Upon Request.©Copyright. This Print/Computer FileGries Architectural Group, Inc.Use Only For Purpose Which Loaned. Copying OrIs The Exclusive Property Ofdate:job:d. by:rev.:GriesArchitectural Group Inc.500 North Commercial StreetNeenah, Wisconsin 54956Phone: 920-722-2445 Fax: 920-722-6605www.gries.designCITY SUBMITTAL 05/06/20225/6/2022 1:09:47 PMZ:\2022\22-054 RSI Marine Storage\22-054 Revit\22-054_RSI Marine Storage.rvtA-3.1ZTS05-06-202222-054A NEW STORAGE FACILITY FOR:RSI MARINE STORAGECHANHASSEN, MINNESOTA1/4" = 1'-0"DOOR ELEVATIONS1/4" = 1'-0"FRAME ELEVATIONSDOOR SCHEDULEDOORNO.FROMTOHANDDOORFRAMEHRD'W.GROUPFIRERATINGREMARKSOPENINGTYPEMAT'LFINISHTYPEMAT'LFINISHWIDTHHEIGHTFIRST FLOORA100 EXTERIOR INT. STORAGE LH 3' - 0" 7' - 0" A H.M. PAINT 1H.M. PAINT --A101 EXTERIOR INT. STORAGE OHD 22' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --A102 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --A103 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --A104 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --A105 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --A106 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --A107 EXTERIOR INT. STORAGE OHD 22' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --A108 EXTERIOR INT. STORAGE RH 3' - 0" 7' - 0" A H.M. PAINT 1H.M. PAINT --A109 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --A110 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --A111 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --A112 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --A113 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --A114 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --B100 EXTERIOR INT. STORAGE LH 3' - 0" 7' - 0" A H.M. PAINT 1H.M. PAINT --B101 EXTERIOR INT. STORAGE OHD 22' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --B102 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --B103 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --B104 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --B105 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --B106 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --B107 EXTERIOR INT. STORAGE OHD 22' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --B108 EXTERIOR INT. STORAGE RH 3' - 0" 7' - 0" A H.M. ANOD. 1H.M. PAINT --B109 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --B110 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --B111 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --B112 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --B113 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --B114 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --B115 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --B116 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --B117 EXTERIOR INT. STORAGE BL 8' - 0" 8' - 0" -- -- -- 3 ALUM. ANOD. --C100 EXTERIOR INT. STORAGE LH 3' - 0" 7' - 0" A H.M. PAINT 1H.M. PAINT --C101 EXTERIOR INT. STORAGE OHD 22' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --C102 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --C103 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --C104 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --C105 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --C106 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --C107 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --C108 EXTERIOR INT. STORAGE OHD 22' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --C109 EXTERIOR INT. STORAGE RH 3' - 0" 7' - 0" A H.M. PAINT 1H.M. PAINT --C110 EXTERIOR INT. STORAGE BL 16' - 0" 4' - 0" -- -- -- 4 ALUM. ANOD. --C111 EXTERIOR INT. STORAGE BL 16' - 0" 4' - 0" -- -- -- 4 ALUM. ANOD. --C112 EXTERIOR INT. STORAGE BL 16' - 0" 4' - 0" -- -- -- 4 ALUM. ANOD. --C113 EXTERIOR INT. STORAGE BL 16' - 0" 4' - 0" -- -- -- 4 ALUM. ANOD. --C114 EXTERIOR INT. STORAGE BL 16' - 0" 4' - 0" -- -- -- 4 ALUM. ANOD. --C115 EXTERIOR INT. STORAGE BL 16' - 0" 4' - 0" -- -- -- 4 ALUM. ANOD. --C116 EXTERIOR INT. STORAGE BL 16' - 0" 4' - 0" -- -- -- 4 ALUM. ANOD. --D100 EXTERIOR INT. STORAGE LH 3' - 0" 7' - 0" A H.M. PAINT 1H.M. PAINT --D101 EXTERIOR INT. STORAGE OHD 22' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --D102 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --D103 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --D104 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --D105 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --D106 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --D107 EXTERIOR INT. STORAGE OHD 16' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --D108 EXTERIOR INT. STORAGE OHD 22' - 0" 16' - 0" B ALUM. ANOD. MFR. -- -- --D109 EXTERIOR INT. STORAGE RH 3' - 0" 7' - 0" A H.M. PAINT 1H.M. PAINT --D110 EXTERIOR INT. STORAGE BL 16' - 0" 4' - 0" -- -- -- 4 ALUM. ANOD. --D111 EXTERIOR INT. STORAGE BL 16' - 0" 4' - 0" -- -- -- 4 ALUM. ANOD. --D112 EXTERIOR INT. STORAGE BL 16' - 0" 4' - 0" -- -- -- 4 ALUM. ANOD. --D113 EXTERIOR INT. STORAGE BL 16' - 0" 4' - 0" -- -- -- 4 ALUM. ANOD. --D114 EXTERIOR INT. STORAGE BL 16' - 0" 4' - 0" -- -- -- 4 ALUM. ANOD. --D115 EXTERIOR INT. STORAGE BL 16' - 0" 4' - 0" -- -- -- 4 ALUM. ANOD. --D116 EXTERIOR INT. STORAGE BL 16' - 0" 4' - 0" -- -- -- 4 ALUM. ANOD. --D117 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --D118 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --D119 EXTERIOR INT. STORAGE BL 16' - 0" 8' - 0" -- -- -- 2 ALUM. ANOD. --1" = 1'-0"INTERIOR WALL TYPES282 MP-1MP-2CMU-1MP-1MP-1MP-1MP-1MP-1MP-1MP-1MP-2MP-2MP-2MP-2MP-2MP-2CMU-1CMU-1CMU-1CMU-1CMU-1CMU-1CMU-1A107A106A105A108A104A103A102A101A10037'-9 3/4"D-1D-2D-2D-2D-2D-2D-2D-2D-1RF-120'-0"BRK-1MP-2CMU-1A109A110A111A112A113A114CW-1CW-1CW-1CW-1CW-1CW-14" 12"4" 12"RF-2RF-130'-0"20'-0"37'-9 3/4"BRK-1CMU-1MP-14" 12"4" 12"4" 12"4" 12"37'-9 3/4"RF-220'-0"30'-0"CMU-1MP-14" 12"4" 12"20'-0"37'-9 3/4"EXTERIOR FINISH KEY NOTESMP-1STONEFACED CMU:MFR: COUNTY MATERIALS CORPORATIONFINISH/COLOR: SPLITFACE/BUFFLOCATION: REFER TO EXTERIOR ELEVATIONSCMU-1MTL. WALL PANEL:MANUFACTURER: METL SPANMATERIAL: INSULATED METAL PANEL - CF ARCHITECTURAL VERTICAL - 30" WIDE, 2-1/2" THK.COLOR/FINISH: SANDSTONE WITH STUCCO FINISHLOCATION: REFER TO EXTERIOR ELEVATIONSMATERIAL SUMMARYKEY NOTEMATERIAL SUMMARYKEY NOTECURTAIN WALL:MFR: KAWNEER (BASIS OF DESIGN)STYLE: 1600 CURTAINWALL SYSTEM (MATCH EXIST.), THERMALLY BROKEN (REFER TO EXTERIOR ELEVATIONS & FRAME ELEVATIONS) REINFORCED MULLIONS AS REQUIRED, VERIFIED AND ENGINEERED BY CURTAINWALL MFR.GLAZING: 1" INSULATED, PPG, SOLARBAN 60, COLOR T.B.D.FINISH/COLOR: CLEAR ANODIZED (CLASS 1)CW-1MP-2BRICK:MFR: COUNTY MATERIALS CORPORATIONFINISH/COLOR: COFFEE BLENDLOCATION: REFER TO EXTERIOR ELEVATIONSBRK-1D-1DOOR:COLOR/FINISH: SANDSTONE OR COLOR TO MATCH OHDLOCATION: REFER TO EXTERIOR ELEVATIONSD-2OVERHEAD DOOR:MANUFACTURER: CHI OVERHEAD DOORSCOLOR/FINISH: SANDSTONELOCATION: REFER TO EXTERIOR ELEVATIONSMTL. WALL PANEL:MANUFACTURER: LONGBOARD INSPIRING FACADESMATERIAL: 6" V-GROOVE, TONGUE & GROOVE LAP SIDINGCOLOR/FINISH: DARK ACACIALOCATION: REFER TO EXTERIOR ELEVATIONSRF-2ROOFING:MANUFACTURER: METL SPANMATERIAL: CFR ROOF PANEL COLOR/FINISH: TERRACOTTALOCATION: REFER TO EXTERIOR ELEVATIONSRF-1ROOFING:MANUFACTURER: METL SPANMATERIAL: CFR ROOF PANEL COLOR/FINISH: MEDIUM BRONZELOCATION: REFER TO EXTERIOR ELEVATIONSReproducing Is Prohibited. Return Upon Request.©Copyright. This Print/Computer FileGries Architectural Group, Inc.Use Only For Purpose Which Loaned. Copying OrIs The Exclusive Property Ofdate:job:d. by:rev.:GriesArchitectural Group Inc.500 North Commercial StreetNeenah, Wisconsin 54956Phone: 920-722-2445 Fax: 920-722-6605www.gries.designCITY SUBMITTAL 05/06/20225/6/2022 1:09:48 PMZ:\2022\22-054 RSI Marine Storage\22-054 Revit\22-054_RSI Marine Storage.rvtA-4.1ZTS05-06-202222-054A NEW STORAGE FACILITY FOR:RSI MARINE STORAGECHANHASSEN, MINNESOTA1/16" = 1'-0"A-4.11BUILDING A - NORTH ELEVATION1/16" = 1'-0"A-4.12BUILDING A - SOUTH ELEVATION1/16" = 1'-0"A-4.13BUILDING A - EAST ELEVATION1/16" = 1'-0"A-4.14BUILDING A - WEST ELEVATIONOPENINGS = 49.5%MP-1= 28.5%MP-2= 16.8%CMU-1 = 5.2%BRK-1 = 17.5%MP-2= 23.8%SF-1 = 17.6%CMU-1 = 41.1%MP-1= 68.7%BRK-1= 23.6%CMU-1= 7.6%MP-1 = 89.5%CMU-1= 10.5%283 EXTERIOR FINISH KEY NOTESMP-1STONEFACED CMU:MFR: COUNTY MATERIALS CORPORATIONFINISH/COLOR: SPLITFACE/BUFFLOCATION: REFER TO EXTERIOR ELEVATIONSCMU-1MTL. WALL PANEL:MANUFACTURER: METL SPANMATERIAL: INSULATED METAL PANEL - CF ARCHITECTURAL VERTICAL - 30" WIDE, 2-1/2" THK.COLOR/FINISH: SANDSTONE WITH STUCCO FINISHLOCATION: REFER TO EXTERIOR ELEVATIONSMATERIAL SUMMARYKEY NOTEMATERIAL SUMMARYKEY NOTECURTAIN WALL:MFR: KAWNEER (BASIS OF DESIGN)STYLE: 1600 CURTAINWALL SYSTEM (MATCH EXIST.), THERMALLY BROKEN (REFER TO EXTERIOR ELEVATIONS & FRAME ELEVATIONS) REINFORCED MULLIONS AS REQUIRED, VERIFIED AND ENGINEERED BY CURTAINWALL MFR.GLAZING: 1" INSULATED, PPG, SOLARBAN 60, COLOR T.B.D.FINISH/COLOR: CLEAR ANODIZED (CLASS 1)CW-1MP-2BRICK:MFR: COUNTY MATERIALS CORPORATIONFINISH/COLOR: COFFEE BLENDLOCATION: REFER TO EXTERIOR ELEVATIONSBRK-1D-1DOOR:COLOR/FINISH: SANDSTONE OR COLOR TO MATCH OHDLOCATION: REFER TO EXTERIOR ELEVATIONSD-2OVERHEAD DOOR:MANUFACTURER: CHI OVERHEAD DOORSCOLOR/FINISH: SANDSTONELOCATION: REFER TO EXTERIOR ELEVATIONSMTL. WALL PANEL:MANUFACTURER: LONGBOARD INSPIRING FACADESMATERIAL: 6" V-GROOVE, TONGUE & GROOVE LAP SIDINGCOLOR/FINISH: DARK ACACIALOCATION: REFER TO EXTERIOR ELEVATIONSRF-2ROOFING:MANUFACTURER: METL SPANMATERIAL: CFR ROOF PANEL COLOR/FINISH: TERRACOTTALOCATION: REFER TO EXTERIOR ELEVATIONSRF-1ROOFING:MANUFACTURER: METL SPANMATERIAL: CFR ROOF PANEL COLOR/FINISH: MEDIUM BRONZELOCATION: REFER TO EXTERIOR ELEVATIONSMP-1CMU-1MP-2MP-1MP-2MP-1MP-2MP-1MP-2MP-1MP-2MP-1MP-2MP-1MP-2CMU-1CMU-1CMU-1CMU-1CMU-1CMU-1CMU-1B108B107B106B105B104B103B102B101B10037'-9 3/4"D-2D-1D-1D-2D-2D-2D-2D-2D-2RF-120'-0"CMU-1MP-2BRK-1B109B110B111B112B113B114CW-1CW-1CW-1CW-1CW-1CW-14" 12"4" 12"RF-1RF-237'-9 3/4"20'-0"30'-0"MP-1CMU-14" 12"4" 12"37'-9 3/4"20'-0"CMU-1MP-2BRK-1B115B116B117CW-1CW-14" 12"4" 12"4" 12"4" 12"RF-220'-0"37'-9 3/4"30'-0"Reproducing Is Prohibited. Return Upon Request.©Copyright. This Print/Computer FileGries Architectural Group, Inc.Use Only For Purpose Which Loaned. Copying OrIs The Exclusive Property Ofdate:job:d. by:rev.:GriesArchitectural Group Inc.500 North Commercial StreetNeenah, Wisconsin 54956Phone: 920-722-2445 Fax: 920-722-6605www.gries.designCITY SUBMITTAL 05/06/20225/6/2022 1:09:50 PMZ:\2022\22-054 RSI Marine Storage\22-054 Revit\22-054_RSI Marine Storage.rvtA-4.2ZTS05-06-202222-054A NEW STORAGE FACILITY FOR:RSI MARINE STORAGECHANHASSEN, MINNESOTA1/16" = 1'-0"A-4.21BUILDING B - NORTH ELEVATION1/16" = 1'-0"A-4.22BUILDING B - SOUTH ELEVATION1/16" = 1'-0"A-4.23BUILDING B - EAST ELEVATION1/16" = 1'-0"A-4.24BUILDING B - WEST ELEVATIONOPENINGS = 49.7%MP-1= 27%MP-2= 16.2%CMU-1 = 7.1%BRK-1 = 17.5%MP-2= 23.8%SF-1 = 17.6%CMU-1 = 41.1%MP-1= 89.5%CMU-1= 10.5%BRK-1= 23.6%MP-1 = 35.2%SF-1= 10.4%CMU-1= 30.8%284 MP-1C110C111C112C113C114C115C116CW-1CW-1CW-1CW-1CW-1CW-1CW-1RF-137'-9 3/4"20'-0"CMU-1MP-1MP-2MP-1MP-2CMU-1MP-1MP-2CMU-1MP-1MP-2CMU-1MP-1MP-2CMU-1MP-1MP-2CMU-1MP-1MP-2CMU-1MP-1MP-2CMU-1MP-1CMU-1C100C101C102C103C104C105C106C107C108C109D-1D-2D-2D-2D-2D-2D-2D-2D-2D-1RF-120'-0"37'-9 3/4"CMU-1MP-14" 12"4" 12"37'-9 3/4"20'-0"CMU-1MP-14" 12"4" 12"37'-9 3/4"20'-0"EXTERIOR FINISH KEY NOTESMP-1STONEFACED CMU:MFR: COUNTY MATERIALS CORPORATIONFINISH/COLOR: SPLITFACE/BUFFLOCATION: REFER TO EXTERIOR ELEVATIONSCMU-1MTL. WALL PANEL:MANUFACTURER: METL SPANMATERIAL: INSULATED METAL PANEL - CF ARCHITECTURAL VERTICAL - 30" WIDE, 2-1/2" THK.COLOR/FINISH: SANDSTONE WITH STUCCO FINISHLOCATION: REFER TO EXTERIOR ELEVATIONSMATERIAL SUMMARYKEY NOTEMATERIAL SUMMARYKEY NOTECURTAIN WALL:MFR: KAWNEER (BASIS OF DESIGN)STYLE: 1600 CURTAINWALL SYSTEM (MATCH EXIST.), THERMALLY BROKEN (REFER TO EXTERIOR ELEVATIONS & FRAME ELEVATIONS) REINFORCED MULLIONS AS REQUIRED, VERIFIED AND ENGINEERED BY CURTAINWALL MFR.GLAZING: 1" INSULATED, PPG, SOLARBAN 60, COLOR T.B.D.FINISH/COLOR: CLEAR ANODIZED (CLASS 1)CW-1MP-2BRICK:MFR: COUNTY MATERIALS CORPORATIONFINISH/COLOR: COFFEE BLENDLOCATION: REFER TO EXTERIOR ELEVATIONSBRK-1D-1DOOR:COLOR/FINISH: SANDSTONE OR COLOR TO MATCH OHDLOCATION: REFER TO EXTERIOR ELEVATIONSD-2OVERHEAD DOOR:MANUFACTURER: CHI OVERHEAD DOORSCOLOR/FINISH: SANDSTONELOCATION: REFER TO EXTERIOR ELEVATIONSMTL. WALL PANEL:MANUFACTURER: LONGBOARD INSPIRING FACADESMATERIAL: 6" V-GROOVE, TONGUE & GROOVE LAP SIDINGCOLOR/FINISH: DARK ACACIALOCATION: REFER TO EXTERIOR ELEVATIONSRF-2ROOFING:MANUFACTURER: METL SPANMATERIAL: CFR ROOF PANEL COLOR/FINISH: TERRACOTTALOCATION: REFER TO EXTERIOR ELEVATIONSRF-1ROOFING:MANUFACTURER: METL SPANMATERIAL: CFR ROOF PANEL COLOR/FINISH: MEDIUM BRONZELOCATION: REFER TO EXTERIOR ELEVATIONSReproducing Is Prohibited. Return Upon Request.©Copyright. This Print/Computer FileGries Architectural Group, Inc.Use Only For Purpose Which Loaned. Copying OrIs The Exclusive Property Ofdate:job:d. by:rev.:GriesArchitectural Group Inc.500 North Commercial StreetNeenah, Wisconsin 54956Phone: 920-722-2445 Fax: 920-722-6605www.gries.designCITY SUBMITTAL 05/06/20225/6/2022 1:09:51 PMZ:\2022\22-054 RSI Marine Storage\22-054 Revit\22-054_RSI Marine Storage.rvtA-4.3ZTS05-06-202222-054A NEW STORAGE FACILITY FOR:RSI MARINE STORAGECHANHASSEN, MINNESOTA1/16" = 1'-0"A-4.31BUILDING C - NORTH ELEVATION1/16" = 1'-0"A-4.32BUILDING C - SOUTH ELEVATION1/16" = 1'-0"A-4.33BUILDING C - EAST ELEVATION1/16" = 1'-0"A-4.34BUILDING C - WEST ELEVATIONOPENINGS = 20.1%MP-1= 27.4%MP-2= 17.4%CMU-1 = 5.1%MP-1= 90.2%SF-1 = 8.8%MP-1= 89.5%CMU-1= 10.5%MP-1 = 89.5%CMU-1= 10.5%285 MP-1D110D111D112D113D114D115D116CW-1CW-1CW-1CW-1CW-1CW-1CW-1RF-137'-9 3/4"20'-0"MP-1MP-2CMU-1MP-1MP-1MP-1MP-1MP-1MP-1MP-1MP-2MP-2MP-2MP-2MP-2MP-2MP-2CMU-1CMU-1CMU-1CMU-1CMU-1CMU-1CMU-1CMU-1D101D102D103D104D105D106D107D108D100D109D-2D-1D-2D-2D-2D-2D-2D-2D-2D-1RF-120'-0"37'-9 3/4"MP-1CMU-14" 12"4" 12"20'-0"37'-9 3/4"MP-2CMU-1D117D118D119CW-1CW-14" 12"4" 12"20'-0"37'-9 3/4"EXTERIOR FINISH KEY NOTESMP-1STONEFACED CMU:MFR: COUNTY MATERIALS CORPORATIONFINISH/COLOR: SPLITFACE/BUFFLOCATION: REFER TO EXTERIOR ELEVATIONSCMU-1MTL. WALL PANEL:MANUFACTURER: METL SPANMATERIAL: INSULATED METAL PANEL - CF ARCHITECTURAL VERTICAL - 30" WIDE, 2-1/2" THK.COLOR/FINISH: SANDSTONE WITH STUCCO FINISHLOCATION: REFER TO EXTERIOR ELEVATIONSMATERIAL SUMMARYKEY NOTEMATERIAL SUMMARYKEY NOTECURTAIN WALL:MFR: KAWNEER (BASIS OF DESIGN)STYLE: 1600 CURTAINWALL SYSTEM (MATCH EXIST.), THERMALLY BROKEN (REFER TO EXTERIOR ELEVATIONS & FRAME ELEVATIONS) REINFORCED MULLIONS AS REQUIRED, VERIFIED AND ENGINEERED BY CURTAINWALL MFR.GLAZING: 1" INSULATED, PPG, SOLARBAN 60, COLOR T.B.D.FINISH/COLOR: CLEAR ANODIZED (CLASS 1)CW-1MP-2BRICK:MFR: COUNTY MATERIALS CORPORATIONFINISH/COLOR: COFFEE BLENDLOCATION: REFER TO EXTERIOR ELEVATIONSBRK-1D-1DOOR:COLOR/FINISH: SANDSTONE OR COLOR TO MATCH OHDLOCATION: REFER TO EXTERIOR ELEVATIONSD-2OVERHEAD DOOR:MANUFACTURER: CHI OVERHEAD DOORSCOLOR/FINISH: SANDSTONELOCATION: REFER TO EXTERIOR ELEVATIONSMTL. WALL PANEL:MANUFACTURER: LONGBOARD INSPIRING FACADESMATERIAL: 6" V-GROOVE, TONGUE & GROOVE LAP SIDINGCOLOR/FINISH: DARK ACACIALOCATION: REFER TO EXTERIOR ELEVATIONSRF-2ROOFING:MANUFACTURER: METL SPANMATERIAL: CFR ROOF PANEL COLOR/FINISH: TERRACOTTALOCATION: REFER TO EXTERIOR ELEVATIONSRF-1ROOFING:MANUFACTURER: METL SPANMATERIAL: CFR ROOF PANEL COLOR/FINISH: MEDIUM BRONZELOCATION: REFER TO EXTERIOR ELEVATIONSReproducing Is Prohibited. Return Upon Request.©Copyright. This Print/Computer FileGries Architectural Group, Inc.Use Only For Purpose Which Loaned. Copying OrIs The Exclusive Property Ofdate:job:d. by:rev.:GriesArchitectural Group Inc.500 North Commercial StreetNeenah, Wisconsin 54956Phone: 920-722-2445 Fax: 920-722-6605www.gries.designCITY SUBMITTAL 05/06/20225/6/2022 1:09:53 PMZ:\2022\22-054 RSI Marine Storage\22-054 Revit\22-054_RSI Marine Storage.rvtA-4.4ZTS05-06-202222-054A NEW STORAGE FACILITY FOR:RSI MARINE STORAGECHANHASSEN, MINNESOTA1/16" = 1'-0"A-4.41BUILDING D - NORTH ELEVATION1/16" = 1'-0"A-4.42BUILDING D - SOUTH ELEVATION1/16" = 1'-0"A-4.43BUILDING D - EAST ELEVATION1/16" = 1'-0"A-4.44BUILDING D - WEST ELEVATIONOPENINGS = 50.1%MP-1= 28%MP-2= 14.9%CMU-1 = 7%MP-2= 90.2%SF-1 = 9.8%MP-1= 89.5%CMU-1= 10.5%MP-2 = 41.1%SF-1= 12.5CMU-1= 46.4%286 Reproducing Is Prohibited. Return Upon Request.©Copyright. This Print/Computer FileGries Architectural Group, Inc.Use Only For Purpose Which Loaned. Copying OrIs The Exclusive Property Ofdate:job:d. by:rev.:GriesArchitectural Group Inc.500 North Commercial StreetNeenah, Wisconsin 54956Phone: 920-722-2445 Fax: 920-722-6605www.gries.designCITY SUBMITTAL 05/06/20225/6/2022 1:09:54 PMZ:\2022\22-054 RSI Marine Storage\22-054 Revit\22-054_RSI Marine Storage.rvtA-11.1ZTS05-06-202222-054A NEW STORAGE FACILITY FOR:RSI MARINE STORAGECHANHASSEN, MINNESOTA287 288 289 RSI MARINE Chanhassen, MN For RSI MARINE STORMWATER MANAGEMENT NARRATIVE & SUMMARY June, 1, 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 290 EXISTING CONDITIONS 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 property is currently sitting empty and not being utilized. The vegetation is a combination of grass and trees. PROPOSED CONDITIONS The site is being proposed to be developed into four (4) buildings of 20,000 square feet each with 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: YEAR EXISTING PROPOSED The infiltration for the site will be provided with a filtration pond adjacent to the stormwater pond. The proposed site will have 2.99 acres or 130,220 square feet of impervious surface. The impervious surface is required to infiltrate the first one inch of stormwater runoff. The proposed infiltration required is 130,220 sq ft x 1 inch/12inch or 10,852 cubic feet. The infiltration volume provided is 16,921 cubic feet. WATER QUALITY We have modeled the site using P8 to determine the pre-development loading for the site and the post-development loading. The following is a summary of the model results: EXISTING PROPOSED TSS 429.2 lbs/yr 20.7 lbs/yr TP 1.8 lbs/yr 0.4 lbs/yr 1 YEAR 5.99 c.f.s. 5.03 c.f.s. 2 YEAR 8.37 c.f.s 6.60 c.f.s 10 YEAR 23.65 c.f.s. 9.75 c.f.s 100 YEAR 45.21 c.f.s. 16.53 c.f.s 291 The TSS and TP for the proposed development is less than the existing site conditions and meets the requirements of the lower Minnesota River Watershed requirements. We have attached the HydroCAD and P8 model for your review. If you have any questions, please call. Sincerely, James R Hill, Inc. Joel G. Cooper P.E. President 292 1S EX SUBCATCHMENT Routing Diagram for RSI Marine site Chanhassen,Mn 23953 Prepared by JRH INC, Printed 5/6/2022 HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Subcat Reach Pond Link 293 EXISTING RSI Marine site Chanhassen,Mn 23953 Printed 5/6/2022Prepared by JRH INC Page 2HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Area Listing (all nodes) Area (acres) CN Description (subcatchment-numbers) 7.860 74 >75% Grass cover, Good, HSG C (1S) 0.410 98 Paved parking, HSG C (1S) 8.270 75 TOTAL AREA 294 EXISTING RSI Marine site Chanhassen,Mn 23953 Printed 5/6/2022Prepared by JRH INC Page 3HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Soil Listing (all nodes) Area (acres) Soil Group Subcatchment Numbers 0.000 HSG A 0.000 HSG B 8.270 HSG C 1S 0.000 HSG D 0.000 Other 8.270 TOTAL AREA 295 EXISTING MSE 24-hr 3 1 year Rainfall=2.50"RSI Marine site Chanhassen,Mn 23953 Printed 5/6/2022Prepared by JRH INC Page 4HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: EX SUBCATCHMENT Runoff = 5.99 cfs @ 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 7.860 74 >75% Grass cover, Good, HSG C 0.410 98 Paved parking, HSG C 8.270 75 Weighted Average 7.860 95.04% Pervious Area 0.410 4.96% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.3 270 0.2000 0.34 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.7 290 0.0138 1.76 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 0.9 130 0.1080 2.30 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.9 690 Total Subcatchment 1S: EX SUBCATCHMENT Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)6 5 4 3 2 1 0 MSE 24-hr 3 1 year Rainfall=2.50" Runoff Area=8.270 ac Runoff Volume=0.448 af Runoff Depth=0.65" Flow Length=690' Tc=16.9 min CN=75 5.99 cfs 296 EXISTING MSE 24-hr 3 2 year Rainfall=2.87"RSI Marine site Chanhassen,Mn 23953 Printed 5/6/2022Prepared by JRH INC Page 5HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: EX SUBCATCHMENT Runoff = 8.37 cfs @ 12.27 hrs, Volume= 0.604 af, Depth= 0.88" 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 7.860 74 >75% Grass cover, Good, HSG C 0.410 98 Paved parking, HSG C 8.270 75 Weighted Average 7.860 95.04% Pervious Area 0.410 4.96% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.3 270 0.2000 0.34 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.7 290 0.0138 1.76 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 0.9 130 0.1080 2.30 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.9 690 Total Subcatchment 1S: EX SUBCATCHMENT Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)9 8 7 6 5 4 3 2 1 0 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 8.37 cfs 297 EXISTING MSE 24-hr 3 10 year Rainfall=4.87"RSI Marine site Chanhassen,Mn 23953 Printed 5/6/2022Prepared by JRH INC Page 6HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: EX SUBCATCHMENT 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 24-hr 3 10 year Rainfall=4.87" Area (ac) CN Description 7.860 74 >75% Grass cover, Good, HSG C 0.410 98 Paved parking, HSG C 8.270 75 Weighted Average 7.860 95.04% Pervious Area 0.410 4.96% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.3 270 0.2000 0.34 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.7 290 0.0138 1.76 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 0.9 130 0.1080 2.30 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.9 690 Total Subcatchment 1S: EX SUBCATCHMENT Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 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 CN=75 23.65 cfs 298 EXISTING MSE 24-hr 3 100 year Rainfall=7.38"RSI Marine site Chanhassen,Mn 23953 Printed 5/6/2022Prepared by JRH INC Page 7HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: EX SUBCATCHMENT 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= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 100 year Rainfall=7.38" Area (ac) CN Description 7.860 74 >75% Grass cover, Good, HSG C 0.410 98 Paved parking, HSG C 8.270 75 Weighted Average 7.860 95.04% Pervious Area 0.410 4.96% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.3 270 0.2000 0.34 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.7 290 0.0138 1.76 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 0.9 130 0.1080 2.30 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.9 690 Total Subcatchment 1S: EX SUBCATCHMENT Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)50 48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MSE 24-hr 3 100 year Rainfall=7.38" Runoff Area=8.270 ac Runoff Volume=3.092 af Runoff Depth=4.49" Flow Length=690' Tc=16.9 min CN=75 45.21 cfs 299 1S Pond drainage 2S Direct runoff 1P Stormwater pond 3L offsite total Routing Diagram for Proposed RSI Marine site Chanhassen 23953 Prepared by JRH INC, Printed 5/6/2022 HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Subcat Reach Pond Link 300 PROPOSED Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 2HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Area Listing (all nodes) Area (acres) CN Description (subcatchment-numbers) 5.470 74 >75% Grass cover, Good, HSG C (1S, 2S) 2.790 98 Paved parking, HSG C (1S, 2S) 8.260 82 TOTAL AREA 301 PROPOSED Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 3HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Soil Listing (all nodes) Area (acres) Soil Group Subcatchment Numbers 0.000 HSG A 0.000 HSG B 8.260 HSG C 1S, 2S 0.000 HSG D 0.000 Other 8.260 TOTAL AREA 302 PROPOSED MSE 24-hr 3 1 year Rainfall=2.50"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 4HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Pond drainage Runoff = 9.54 cfs @ 12.25 hrs, Volume= 0.636 af, Depth= 1.06" 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 2.660 98 Paved parking, HSG C 4.570 74 >75% Grass cover, Good, HSG C 7.230 83 Weighted Average 4.570 63.21% Pervious Area 2.660 36.79% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.6 145 0.3300 0.37 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 115 0.0200 2.12 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.9 100 0.1000 0.21 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.4 75 0.0300 3.52 Shallow Concentrated Flow, Paved Kv= 20.3 fps 15.8 435 Total Subcatchment 1S: Pond drainage Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1 year Rainfall=2.50" Runoff Area=7.230 ac Runoff Volume=0.636 af Runoff Depth=1.06" Flow Length=435' Tc=15.8 min CN=83 9.54 cfs 303 PROPOSED MSE 24-hr 3 1 year Rainfall=2.50"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 5HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Direct runoff Runoff = 1.03 cfs @ 12.21 hrs, Volume= 0.064 af, Depth= 0.74" 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 0.130 98 Paved parking, HSG C 0.900 74 >75% Grass cover, Good, HSG C 1.030 77 Weighted Average 0.900 87.38% Pervious Area 0.130 12.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.9 50 0.3300 0.43 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 12.2 150 Total Subcatchment 2S: Direct runoff Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)1 0 MSE 24-hr 3 1 year Rainfall=2.50" Runoff Area=1.030 ac Runoff Volume=0.064 af Runoff Depth=0.74" Flow Length=150' Tc=12.2 min CN=77 1.03 cfs 304 PROPOSED MSE 24-hr 3 1 year Rainfall=2.50"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 6HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Pond 1P: Stormwater pond Inflow Area = 7.230 ac, 36.79% Impervious, Inflow Depth = 1.06" for 1 year event Inflow = 9.54 cfs @ 12.25 hrs, Volume= 0.636 af Outflow = 4.61 cfs @ 12.49 hrs, Volume= 0.636 af, Atten= 52%, Lag= 14.4 min Primary = 4.61 cfs @ 12.49 hrs, Volume= 0.636 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Starting Elev= 727.50' Surf.Area= 16,171 sf Storage= 16,922 cf Peak Elev= 728.01' @ 12.49 hrs Surf.Area= 16,921 sf Storage= 25,323 cf (8,402 cf above start) Plug-Flow detention time= 318.6 min calculated for 0.248 af (39% of inflow) Center-of-Mass det. time= 52.1 min ( 877.3 - 825.2 ) Volume Invert Avail.Storage Storage Description #1 726.00' 82,927 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 726.00 6,391 0 0 727.50 16,171 16,922 16,922 728.00 16,909 8,270 25,192 730.00 20,005 36,914 62,106 731.00 21,638 20,822 82,927 Device Routing Invert Outlet Devices #1 Primary 724.20'18.0" Round Culvert L= 29.0' RCP, groove end projecting, Ke= 0.200 Inlet / Outlet Invert= 724.20' / 723.95' S= 0.0086 '/' Cc= 0.900 n= 0.013, Flow Area= 1.77 sf #2 Device 1 727.50'4.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) #3 Device 2 725.50'18.0" Round Culvert L= 30.0' RCP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 725.50' / 725.50' S= 0.0000 '/' Cc= 0.900 n= 0.013, Flow Area= 1.77 sf #4 Device 1 730.50'48.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=4.61 cfs @ 12.49 hrs HW=728.01' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 4.61 cfs of 17.24 cfs potential flow) 2=Sharp-Crested Rectangular Weir (Weir Controls 4.61 cfs @ 2.33 fps) 3=Culvert (Passes 4.61 cfs of 5.35 cfs potential flow) 4=Orifice/Grate ( Controls 0.00 cfs) 305 PROPOSED MSE 24-hr 3 1 year Rainfall=2.50"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 7HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Pond 1P: Stormwater pond Inflow Primary Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=7.230 ac Peak Elev=728.01' Storage=25,323 cf 9.54 cfs 4.61 cfs 306 PROPOSED MSE 24-hr 3 1 year Rainfall=2.50"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 8HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1P: Stormwater pond Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 726.00 6,391 0 726.05 6,717 328 726.10 7,043 672 726.15 7,369 1,032 726.20 7,695 1,409 726.25 8,021 1,802 726.30 8,347 2,211 726.35 8,673 2,636 726.40 8,999 3,078 726.45 9,325 3,536 726.50 9,651 4,011 726.55 9,977 4,501 726.60 10,303 5,008 726.65 10,629 5,531 726.70 10,955 6,071 726.75 11,281 6,627 726.80 11,607 7,199 726.85 11,933 7,788 726.90 12,259 8,392 726.95 12,585 9,014 727.00 12,911 9,651 727.05 13,237 10,305 727.10 13,563 10,975 727.15 13,889 11,661 727.20 14,215 12,364 727.25 14,541 13,083 727.30 14,867 13,818 727.35 15,193 14,569 727.40 15,519 15,337 727.45 15,845 16,121 727.50 16,171 16,922 727.55 16,245 17,732 727.60 16,319 18,546 727.65 16,392 19,364 727.70 16,466 20,185 727.75 16,540 21,010 727.80 16,614 21,839 727.85 16,688 22,672 727.90 16,761 23,508 727.95 16,835 24,348 728.00 16,909 25,192 728.05 16,986 26,039 728.10 17,064 26,890 728.15 17,141 27,745 728.20 17,219 28,604 728.25 17,296 29,467 728.30 17,373 30,334 728.35 17,451 31,204 728.40 17,528 32,079 728.45 17,606 32,957 728.50 17,683 33,840 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 728.55 17,760 34,726 728.60 17,838 35,616 728.65 17,915 36,509 728.70 17,993 37,407 728.75 18,070 38,309 728.80 18,147 39,214 728.85 18,225 40,123 728.90 18,302 41,037 728.95 18,380 41,954 729.00 18,457 42,875 729.05 18,534 43,799 729.10 18,612 44,728 729.15 18,689 45,660 729.20 18,767 46,597 729.25 18,844 47,537 729.30 18,921 48,481 729.35 18,999 49,429 729.40 19,076 50,381 729.45 19,154 51,337 729.50 19,231 52,297 729.55 19,308 53,260 729.60 19,386 54,227 729.65 19,463 55,199 729.70 19,541 56,174 729.75 19,618 57,153 729.80 19,695 58,135 729.85 19,773 59,122 729.90 19,850 60,113 729.95 19,928 61,107 730.00 20,005 62,106 730.05 20,087 63,108 730.10 20,168 64,114 730.15 20,250 65,125 730.20 20,332 66,139 730.25 20,413 67,158 730.30 20,495 68,180 730.35 20,577 69,207 730.40 20,658 70,238 730.45 20,740 71,273 730.50 20,822 72,312 730.55 20,903 73,355 730.60 20,985 74,402 730.65 21,066 75,454 730.70 21,148 76,509 730.75 21,230 77,569 730.80 21,311 78,632 730.85 21,393 79,700 730.90 21,475 80,771 730.95 21,556 81,847 731.00 21,638 82,927 307 PROPOSED MSE 24-hr 3 1 year Rainfall=2.50"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 9HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Link 3L: offsite total Inflow Area = 8.260 ac, 33.78% Impervious, Inflow Depth = 1.02" for 1 year event Inflow = 5.03 cfs @ 12.46 hrs, Volume= 0.700 af Primary = 5.03 cfs @ 12.46 hrs, Volume= 0.700 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Link 3L: offsite total Inflow Primary Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)5 4 3 2 1 0 Inflow Area=8.260 ac 5.03 cfs 5.03 cfs 308 PROPOSED MSE 24-hr 3 2 year Rainfall=2.87"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 10HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Pond drainage Runoff = 12.21 cfs @ 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 year Rainfall=2.87" Area (ac) CN Description 2.660 98 Paved parking, HSG C 4.570 74 >75% Grass cover, Good, HSG C 7.230 83 Weighted Average 4.570 63.21% Pervious Area 2.660 36.79% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.6 145 0.3300 0.37 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 115 0.0200 2.12 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.9 100 0.1000 0.21 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.4 75 0.0300 3.52 Shallow Concentrated Flow, Paved Kv= 20.3 fps 15.8 435 Total Subcatchment 1S: Pond drainage Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 2 year Rainfall=2.87" Runoff Area=7.230 ac Runoff Volume=0.809 af Runoff Depth=1.34" Flow Length=435' Tc=15.8 min CN=83 12.21 cfs 309 PROPOSED MSE 24-hr 3 2 year Rainfall=2.87"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 11HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Direct runoff Runoff = 1.40 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 0.130 98 Paved parking, HSG C 0.900 74 >75% Grass cover, Good, HSG C 1.030 77 Weighted Average 0.900 87.38% Pervious Area 0.130 12.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.9 50 0.3300 0.43 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 12.2 150 Total Subcatchment 2S: Direct runoff Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)1 0 MSE 24-hr 3 2 year Rainfall=2.87" Runoff Area=1.030 ac Runoff Volume=0.084 af Runoff Depth=0.98" Flow Length=150' Tc=12.2 min CN=77 1.40 cfs 310 PROPOSED MSE 24-hr 3 2 year Rainfall=2.87"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 12HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Pond 1P: Stormwater pond Inflow Area = 7.230 ac, 36.79% Impervious, Inflow Depth = 1.34" for 2 year event Inflow = 12.21 cfs @ 12.25 hrs, Volume= 0.809 af Outflow = 5.97 cfs @ 12.48 hrs, Volume= 0.809 af, Atten= 51%, Lag= 14.0 min Primary = 5.97 cfs @ 12.48 hrs, Volume= 0.809 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Starting Elev= 727.50' Surf.Area= 16,171 sf Storage= 16,922 cf Peak Elev= 728.13' @ 12.48 hrs Surf.Area= 17,114 sf Storage= 27,448 cf (10,526 cf above start) Plug-Flow detention time= 241.6 min calculated for 0.420 af (52% of inflow) Center-of-Mass det. time= 47.9 min ( 868.1 - 820.1 ) Volume Invert Avail.Storage Storage Description #1 726.00' 82,927 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 726.00 6,391 0 0 727.50 16,171 16,922 16,922 728.00 16,909 8,270 25,192 730.00 20,005 36,914 62,106 731.00 21,638 20,822 82,927 Device Routing Invert Outlet Devices #1 Primary 724.20'18.0" Round Culvert L= 29.0' RCP, groove end projecting, Ke= 0.200 Inlet / Outlet Invert= 724.20' / 723.95' S= 0.0086 '/' Cc= 0.900 n= 0.013, Flow Area= 1.77 sf #2 Device 1 727.50'4.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) #3 Device 2 725.50'18.0" Round Culvert L= 30.0' RCP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 725.50' / 725.50' S= 0.0000 '/' Cc= 0.900 n= 0.013, Flow Area= 1.77 sf #4 Device 1 730.50'48.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=5.97 cfs @ 12.48 hrs HW=728.13' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 5.97 cfs of 17.66 cfs potential flow) 2=Sharp-Crested Rectangular Weir (Passes 5.97 cfs of 6.37 cfs potential flow) 3=Culvert (Inlet Controls 5.97 cfs @ 3.38 fps) 4=Orifice/Grate ( Controls 0.00 cfs) 311 PROPOSED MSE 24-hr 3 2 year Rainfall=2.87"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 13HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Pond 1P: Stormwater pond Inflow Primary Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=7.230 ac Peak Elev=728.13' Storage=27,448 cf 12.21 cfs 5.97 cfs 312 PROPOSED MSE 24-hr 3 2 year Rainfall=2.87"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 14HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1P: Stormwater pond Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 726.00 6,391 0 726.05 6,717 328 726.10 7,043 672 726.15 7,369 1,032 726.20 7,695 1,409 726.25 8,021 1,802 726.30 8,347 2,211 726.35 8,673 2,636 726.40 8,999 3,078 726.45 9,325 3,536 726.50 9,651 4,011 726.55 9,977 4,501 726.60 10,303 5,008 726.65 10,629 5,531 726.70 10,955 6,071 726.75 11,281 6,627 726.80 11,607 7,199 726.85 11,933 7,788 726.90 12,259 8,392 726.95 12,585 9,014 727.00 12,911 9,651 727.05 13,237 10,305 727.10 13,563 10,975 727.15 13,889 11,661 727.20 14,215 12,364 727.25 14,541 13,083 727.30 14,867 13,818 727.35 15,193 14,569 727.40 15,519 15,337 727.45 15,845 16,121 727.50 16,171 16,922 727.55 16,245 17,732 727.60 16,319 18,546 727.65 16,392 19,364 727.70 16,466 20,185 727.75 16,540 21,010 727.80 16,614 21,839 727.85 16,688 22,672 727.90 16,761 23,508 727.95 16,835 24,348 728.00 16,909 25,192 728.05 16,986 26,039 728.10 17,064 26,890 728.15 17,141 27,745 728.20 17,219 28,604 728.25 17,296 29,467 728.30 17,373 30,334 728.35 17,451 31,204 728.40 17,528 32,079 728.45 17,606 32,957 728.50 17,683 33,840 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 728.55 17,760 34,726 728.60 17,838 35,616 728.65 17,915 36,509 728.70 17,993 37,407 728.75 18,070 38,309 728.80 18,147 39,214 728.85 18,225 40,123 728.90 18,302 41,037 728.95 18,380 41,954 729.00 18,457 42,875 729.05 18,534 43,799 729.10 18,612 44,728 729.15 18,689 45,660 729.20 18,767 46,597 729.25 18,844 47,537 729.30 18,921 48,481 729.35 18,999 49,429 729.40 19,076 50,381 729.45 19,154 51,337 729.50 19,231 52,297 729.55 19,308 53,260 729.60 19,386 54,227 729.65 19,463 55,199 729.70 19,541 56,174 729.75 19,618 57,153 729.80 19,695 58,135 729.85 19,773 59,122 729.90 19,850 60,113 729.95 19,928 61,107 730.00 20,005 62,106 730.05 20,087 63,108 730.10 20,168 64,114 730.15 20,250 65,125 730.20 20,332 66,139 730.25 20,413 67,158 730.30 20,495 68,180 730.35 20,577 69,207 730.40 20,658 70,238 730.45 20,740 71,273 730.50 20,822 72,312 730.55 20,903 73,355 730.60 20,985 74,402 730.65 21,066 75,454 730.70 21,148 76,509 730.75 21,230 77,569 730.80 21,311 78,632 730.85 21,393 79,700 730.90 21,475 80,771 730.95 21,556 81,847 731.00 21,638 82,927 313 PROPOSED MSE 24-hr 3 2 year Rainfall=2.87"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 15HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Link 3L: offsite total Inflow Area = 8.260 ac, 33.78% Impervious, Inflow Depth = 1.30" for 2 year event Inflow = 6.60 cfs @ 12.38 hrs, Volume= 0.893 af Primary = 6.60 cfs @ 12.38 hrs, Volume= 0.893 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Link 3L: offsite total Inflow Primary Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=8.260 ac 6.60 cfs 6.60 cfs 314 PROPOSED MSE 24-hr 3 10 year Rainfall=4.27"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 16HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Pond drainage Runoff = 22.99 cfs @ 12.24 hrs, Volume= 1.520 af, Depth= 2.52" 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 2.660 98 Paved parking, HSG C 4.570 74 >75% Grass cover, Good, HSG C 7.230 83 Weighted Average 4.570 63.21% Pervious Area 2.660 36.79% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.6 145 0.3300 0.37 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 115 0.0200 2.12 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.9 100 0.1000 0.21 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.4 75 0.0300 3.52 Shallow Concentrated Flow, Paved Kv= 20.3 fps 15.8 435 Total Subcatchment 1S: Pond drainage Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 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 CN=83 22.99 cfs 315 PROPOSED MSE 24-hr 3 10 year Rainfall=4.27"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 17HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: 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 0.130 98 Paved parking, HSG C 0.900 74 >75% Grass cover, Good, HSG C 1.030 77 Weighted Average 0.900 87.38% Pervious Area 0.130 12.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.9 50 0.3300 0.43 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 12.2 150 Total Subcatchment 2S: Direct runoff Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)3 2 1 0 MSE 24-hr 3 10 year Rainfall=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 2.97 cfs 316 PROPOSED MSE 24-hr 3 10 year Rainfall=4.27"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 18HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Pond 1P: Stormwater pond Inflow Area = 7.230 ac, 36.79% Impervious, Inflow Depth = 2.52" for 10 year event Inflow = 22.99 cfs @ 12.24 hrs, Volume= 1.520 af Outflow = 8.53 cfs @ 12.54 hrs, Volume= 1.520 af, Atten= 63%, Lag= 18.1 min Primary = 8.53 cfs @ 12.54 hrs, Volume= 1.520 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Starting Elev= 727.50' Surf.Area= 16,171 sf Storage= 16,922 cf Peak Elev= 728.79' @ 12.54 hrs Surf.Area= 18,131 sf Storage= 39,023 cf (22,102 cf above start) Plug-Flow detention time= 155.5 min calculated for 1.131 af (74% of inflow) Center-of-Mass det. time= 45.2 min ( 852.6 - 807.4 ) Volume Invert Avail.Storage Storage Description #1 726.00' 82,927 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 726.00 6,391 0 0 727.50 16,171 16,922 16,922 728.00 16,909 8,270 25,192 730.00 20,005 36,914 62,106 731.00 21,638 20,822 82,927 Device Routing Invert Outlet Devices #1 Primary 724.20'18.0" Round Culvert L= 29.0' RCP, groove end projecting, Ke= 0.200 Inlet / Outlet Invert= 724.20' / 723.95' S= 0.0086 '/' Cc= 0.900 n= 0.013, Flow Area= 1.77 sf #2 Device 1 727.50'4.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) #3 Device 2 725.50'18.0" Round Culvert L= 30.0' RCP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 725.50' / 725.50' S= 0.0000 '/' Cc= 0.900 n= 0.013, Flow Area= 1.77 sf #4 Device 1 730.50'48.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=8.53 cfs @ 12.54 hrs HW=728.79' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 8.53 cfs of 19.70 cfs potential flow) 2=Sharp-Crested Rectangular Weir (Passes 8.53 cfs of 17.92 cfs potential flow) 3=Culvert (Inlet Controls 8.53 cfs @ 4.82 fps) 4=Orifice/Grate ( Controls 0.00 cfs) 317 PROPOSED MSE 24-hr 3 10 year Rainfall=4.27"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 19HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Pond 1P: Stormwater pond Inflow Primary Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=7.230 ac Peak Elev=728.79' Storage=39,023 cf 22.99 cfs 8.53 cfs 318 PROPOSED MSE 24-hr 3 10 year Rainfall=4.27"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 20HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1P: Stormwater pond Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 726.00 6,391 0 726.05 6,717 328 726.10 7,043 672 726.15 7,369 1,032 726.20 7,695 1,409 726.25 8,021 1,802 726.30 8,347 2,211 726.35 8,673 2,636 726.40 8,999 3,078 726.45 9,325 3,536 726.50 9,651 4,011 726.55 9,977 4,501 726.60 10,303 5,008 726.65 10,629 5,531 726.70 10,955 6,071 726.75 11,281 6,627 726.80 11,607 7,199 726.85 11,933 7,788 726.90 12,259 8,392 726.95 12,585 9,014 727.00 12,911 9,651 727.05 13,237 10,305 727.10 13,563 10,975 727.15 13,889 11,661 727.20 14,215 12,364 727.25 14,541 13,083 727.30 14,867 13,818 727.35 15,193 14,569 727.40 15,519 15,337 727.45 15,845 16,121 727.50 16,171 16,922 727.55 16,245 17,732 727.60 16,319 18,546 727.65 16,392 19,364 727.70 16,466 20,185 727.75 16,540 21,010 727.80 16,614 21,839 727.85 16,688 22,672 727.90 16,761 23,508 727.95 16,835 24,348 728.00 16,909 25,192 728.05 16,986 26,039 728.10 17,064 26,890 728.15 17,141 27,745 728.20 17,219 28,604 728.25 17,296 29,467 728.30 17,373 30,334 728.35 17,451 31,204 728.40 17,528 32,079 728.45 17,606 32,957 728.50 17,683 33,840 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 728.55 17,760 34,726 728.60 17,838 35,616 728.65 17,915 36,509 728.70 17,993 37,407 728.75 18,070 38,309 728.80 18,147 39,214 728.85 18,225 40,123 728.90 18,302 41,037 728.95 18,380 41,954 729.00 18,457 42,875 729.05 18,534 43,799 729.10 18,612 44,728 729.15 18,689 45,660 729.20 18,767 46,597 729.25 18,844 47,537 729.30 18,921 48,481 729.35 18,999 49,429 729.40 19,076 50,381 729.45 19,154 51,337 729.50 19,231 52,297 729.55 19,308 53,260 729.60 19,386 54,227 729.65 19,463 55,199 729.70 19,541 56,174 729.75 19,618 57,153 729.80 19,695 58,135 729.85 19,773 59,122 729.90 19,850 60,113 729.95 19,928 61,107 730.00 20,005 62,106 730.05 20,087 63,108 730.10 20,168 64,114 730.15 20,250 65,125 730.20 20,332 66,139 730.25 20,413 67,158 730.30 20,495 68,180 730.35 20,577 69,207 730.40 20,658 70,238 730.45 20,740 71,273 730.50 20,822 72,312 730.55 20,903 73,355 730.60 20,985 74,402 730.65 21,066 75,454 730.70 21,148 76,509 730.75 21,230 77,569 730.80 21,311 78,632 730.85 21,393 79,700 730.90 21,475 80,771 730.95 21,556 81,847 731.00 21,638 82,927 319 PROPOSED MSE 24-hr 3 10 year Rainfall=4.27"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 21HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Link 3L: offsite total Inflow Area = 8.260 ac, 33.78% Impervious, Inflow Depth = 2.46" for 10 year event Inflow = 9.75 cfs @ 12.29 hrs, Volume= 1.693 af Primary = 9.75 cfs @ 12.29 hrs, Volume= 1.693 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Link 3L: offsite total Inflow Primary Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=8.260 ac 9.75 cfs 9.75 cfs 320 PROPOSED MSE 24-hr 3 100 year Rainfall=7.38"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 22HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC 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= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 100 year Rainfall=7.38" Area (ac) CN Description 2.660 98 Paved parking, HSG C 4.570 74 >75% Grass cover, Good, HSG C 7.230 83 Weighted Average 4.570 63.21% Pervious Area 2.660 36.79% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.6 145 0.3300 0.37 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 115 0.0200 2.12 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.9 100 0.1000 0.21 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.4 75 0.0300 3.52 Shallow Concentrated Flow, Paved Kv= 20.3 fps 15.8 435 Total Subcatchment 1S: Pond drainage Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)50 45 40 35 30 25 20 15 10 5 0 MSE 24-hr 3 100 year Rainfall=7.38" Runoff Area=7.230 ac Runoff Volume=3.246 af Runoff Depth=5.39" Flow Length=435' Tc=15.8 min CN=83 47.98 cfs 321 PROPOSED MSE 24-hr 3 100 year Rainfall=7.38"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 23HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Direct runoff Runoff = 6.84 cfs @ 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 0.130 98 Paved parking, HSG C 0.900 74 >75% Grass cover, Good, HSG C 1.030 77 Weighted Average 0.900 87.38% Pervious Area 0.130 12.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.9 50 0.3300 0.43 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 12.2 150 Total Subcatchment 2S: Direct runoff Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)7 6 5 4 3 2 1 0 MSE 24-hr 3 100 year Rainfall=7.38" Runoff Area=1.030 ac Runoff Volume=0.404 af Runoff Depth=4.71" Flow Length=150' Tc=12.2 min CN=77 6.84 cfs 322 PROPOSED MSE 24-hr 3 100 year Rainfall=7.38"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 24HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Pond 1P: Stormwater pond Inflow Area = 7.230 ac, 36.79% Impervious, Inflow Depth = 5.39" for 100 year event Inflow = 47.98 cfs @ 12.24 hrs, Volume= 3.246 af Outflow = 12.87 cfs @ 12.62 hrs, Volume= 3.246 af, Atten= 73%, Lag= 22.9 min Primary = 12.87 cfs @ 12.62 hrs, Volume= 3.246 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Starting Elev= 727.50' Surf.Area= 16,171 sf Storage= 16,922 cf Peak Elev= 730.44' @ 12.62 hrs Surf.Area= 20,720 sf Storage= 71,021 cf (54,099 cf above start) Plug-Flow detention time= 122.0 min calculated for 2.857 af (88% of inflow) Center-of-Mass det. time= 53.2 min ( 845.4 - 792.2 ) Volume Invert Avail.Storage Storage Description #1 726.00' 82,927 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 726.00 6,391 0 0 727.50 16,171 16,922 16,922 728.00 16,909 8,270 25,192 730.00 20,005 36,914 62,106 731.00 21,638 20,822 82,927 Device Routing Invert Outlet Devices #1 Primary 724.20'18.0" Round Culvert L= 29.0' RCP, groove end projecting, Ke= 0.200 Inlet / Outlet Invert= 724.20' / 723.95' S= 0.0086 '/' Cc= 0.900 n= 0.013, Flow Area= 1.77 sf #2 Device 1 727.50'4.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) #3 Device 2 725.50'18.0" Round Culvert L= 30.0' RCP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 725.50' / 725.50' S= 0.0000 '/' Cc= 0.900 n= 0.013, Flow Area= 1.77 sf #4 Device 1 730.50'48.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=12.87 cfs @ 12.62 hrs HW=730.44' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 12.87 cfs of 24.08 cfs potential flow) 2=Sharp-Crested Rectangular Weir (Passes 12.87 cfs of 56.19 cfs potential flow) 3=Culvert (Inlet Controls 12.87 cfs @ 7.28 fps) 4=Orifice/Grate ( Controls 0.00 cfs) 323 PROPOSED MSE 24-hr 3 100 year Rainfall=7.38"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 25HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Pond 1P: Stormwater pond Inflow Primary Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)50 45 40 35 30 25 20 15 10 5 0 Inflow Area=7.230 ac Peak Elev=730.44' Storage=71,021 cf 47.98 cfs 12.87 cfs 324 PROPOSED MSE 24-hr 3 100 year Rainfall=7.38"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 26HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1P: Stormwater pond Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 726.00 6,391 0 726.05 6,717 328 726.10 7,043 672 726.15 7,369 1,032 726.20 7,695 1,409 726.25 8,021 1,802 726.30 8,347 2,211 726.35 8,673 2,636 726.40 8,999 3,078 726.45 9,325 3,536 726.50 9,651 4,011 726.55 9,977 4,501 726.60 10,303 5,008 726.65 10,629 5,531 726.70 10,955 6,071 726.75 11,281 6,627 726.80 11,607 7,199 726.85 11,933 7,788 726.90 12,259 8,392 726.95 12,585 9,014 727.00 12,911 9,651 727.05 13,237 10,305 727.10 13,563 10,975 727.15 13,889 11,661 727.20 14,215 12,364 727.25 14,541 13,083 727.30 14,867 13,818 727.35 15,193 14,569 727.40 15,519 15,337 727.45 15,845 16,121 727.50 16,171 16,922 727.55 16,245 17,732 727.60 16,319 18,546 727.65 16,392 19,364 727.70 16,466 20,185 727.75 16,540 21,010 727.80 16,614 21,839 727.85 16,688 22,672 727.90 16,761 23,508 727.95 16,835 24,348 728.00 16,909 25,192 728.05 16,986 26,039 728.10 17,064 26,890 728.15 17,141 27,745 728.20 17,219 28,604 728.25 17,296 29,467 728.30 17,373 30,334 728.35 17,451 31,204 728.40 17,528 32,079 728.45 17,606 32,957 728.50 17,683 33,840 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 728.55 17,760 34,726 728.60 17,838 35,616 728.65 17,915 36,509 728.70 17,993 37,407 728.75 18,070 38,309 728.80 18,147 39,214 728.85 18,225 40,123 728.90 18,302 41,037 728.95 18,380 41,954 729.00 18,457 42,875 729.05 18,534 43,799 729.10 18,612 44,728 729.15 18,689 45,660 729.20 18,767 46,597 729.25 18,844 47,537 729.30 18,921 48,481 729.35 18,999 49,429 729.40 19,076 50,381 729.45 19,154 51,337 729.50 19,231 52,297 729.55 19,308 53,260 729.60 19,386 54,227 729.65 19,463 55,199 729.70 19,541 56,174 729.75 19,618 57,153 729.80 19,695 58,135 729.85 19,773 59,122 729.90 19,850 60,113 729.95 19,928 61,107 730.00 20,005 62,106 730.05 20,087 63,108 730.10 20,168 64,114 730.15 20,250 65,125 730.20 20,332 66,139 730.25 20,413 67,158 730.30 20,495 68,180 730.35 20,577 69,207 730.40 20,658 70,238 730.45 20,740 71,273 730.50 20,822 72,312 730.55 20,903 73,355 730.60 20,985 74,402 730.65 21,066 75,454 730.70 21,148 76,509 730.75 21,230 77,569 730.80 21,311 78,632 730.85 21,393 79,700 730.90 21,475 80,771 730.95 21,556 81,847 731.00 21,638 82,927 325 PROPOSED MSE 24-hr 3 100 year Rainfall=7.38"Proposed RSI Marine site Chanhassen 23953 Printed 5/6/2022Prepared by JRH INC Page 27HydroCAD® 10.00-25 s/n 00744 © 2019 HydroCAD Software Solutions LLC Summary for Link 3L: offsite total Inflow Area = 8.260 ac, 33.78% Impervious, Inflow Depth = 5.30" for 100 year event Inflow = 16.53 cfs @ 12.24 hrs, Volume= 3.650 af Primary = 16.53 cfs @ 12.24 hrs, Volume= 3.650 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Link 3L: offsite total Inflow Primary Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=8.260 ac 16.53 cfs 16.53 cfs 326 P8 Urban Catchment Model, Version 3.5 Case RSI_EX.p8c Title Startup Case PrecFile MSP4918.pcp PartFile nurp50.p8p Case Title Startup Case Case Data File RSI_EX.p8c Path G:\MSOFFICE\AA Docs\RSI Marine\p8\ Case Notes: Storm Data File MSP4918.pcp Particle File nurp50.p8p Air Temp File File MSP4918.tem Time Steps Per Hour 4 Minimum Inter-Event Time (hrs) 10 Maximum Continuity Error % 2 Rainfall Breakpoint (inches) 0.8 Precipitation Scale Factor 1 Air Temp Offset (deg-F) 0 Loops Thru Storm File 1 Simulation Dates Start 6/1/1970 Keep 1/1/1971 Stop 12/31/1972 Max Snowfall Temperature (deg-f) 32.0 SnowMelt Temperature (deg-f) 32.0 Snowmelt Coef (in/degF-Day) 0.06 Soil Freeze Temp (deg-F) 32.0 Snowmelt Abstraction Factor 1.00 Evapo-Trans. Calibration Factor 1.00 Growing Season Start Month 5 Growing Season End Month 10 5-Day Antecedent Rainfall + Runoff (inches) CN Antecedent Moisture Condition AMC-II AMC-III Growing Season 1.40 2.10 NonGrowing Season 0.50 1.10 Watershed Data Watershed Name Existing Site Runoff to Device Outflow Infiltration to Device Watershed Area 8.27 SCS Curve Number (Pervious) 74 Scale Factor for Pervious Runoff Load 1 Indirectly Connected Imperv Fraction 0 UnSwept Impervious Fraction 0.05 UnSwept Depression Storage (inches) 0.02 UnSwept Imperv. Runoff Coefficient 1 UnSwept Scale Factor for Particle Loads 1 Swept Impervious Fraction 0 Swept Depression Storage (inches) 0.02 Swept Imperv. Runoff Coefficient 1 Swept Scale Factor for Particle Loads 1 Sweeping Frequency 0 Sweeping Efficiency 1 Sweeping Start Date (MMDD) 101 Sweeping Stop Date (MMDD) 1231 327 Device Data Device Name Outflow Device Type PIPE Infiltration Outlet Normal Outlet Spillway Outlet Particle Removal Scale Factor Bottom Elevation (ft) Bottom Area (acres) Permanent Pool Area (acres) Permanent Pool Volume (ac-ft) Perm Pool Infilt Rate (in/hr) Flood Pool Area (acres) Flood Pool Volume (ac-ft) Flood Pool Infilt Rate (in/hr) Infilt Basin Void Fraction (%) Detention Pond Outlet Parameters Outlet Type Outlet Orifice Diameter (in) Orifice Discharge Coef Outlet Weir Length (ft) Weir Discharge Coef Perforated Riser Height (ft) Number of Holes in Riser Holes Diameter Flood Pool Drain Time (hrs) Swale Parameters Length of Flow Path (ft) Slope of Flow Path % Bottom Width (ft) Side Slope (ft-v/ft-h) Maximum Depth of Flow (ft) Mannings n Constant Hydraulic Model Pipe, Splitter, Aquifer Parameter Hydraulic Res. Time (hrs) 0 Particle Data Particle File nurp50.p8p Particle Class P0% P10% P30% P50% P80% Filtration Efficiency (%) 90 100 100 100 100 Settling Velocity (ft/hr) 0 0.03 0.3 1.5 15 First Order Decay Rate (1/day) 0 0 0 0 0 2nd Order Decay (1/day-ppm) 0 0 0 0 0 Impervious Runoff Conc (ppm) 1 0 0 0 0 Pervious Runoff Conc (ppm) 1 100 100 100 200 Pervious Conc Exponent 0 1 1 1 1 Accum. Rate (lbs-ac-day) 0 1.75 1.75 1.75 3.5 Particle Removal Rate (1/day) 0 0.25 0.25 0.25 0.25 Washoff Coefficient 0 20 20 20 20 Washoff Exponent 0 2 2 2 2 Sweeper Efficiency 0 0 0 5 15 Water Quality Component Data Component Name TSS TP TKN CU PB ZN Water Quality Criteria (ppm) Level 1 5 0.025 2 2 0.02 5 Level 2 10 0.05 1 0.0048 0.014 0.0362 Level 3 20 0.1 0.5 0.02 0.15 0.38 Content Scale Factor 1 1 1 1 1 1 Particle Composition (mg/kg) P0% 0 99000 600000 13600 2000 64000 P10% 1000000 3850 15000 340 180 1600 P30% 1000000 3850 15000 340 180 1600 P50% 1000000 3850 15000 340 180 1600 P80% 1000000 0 0 340 180 0 328 P8 Urban Catchment Model, Version 3.5 Run Date 05/26/22 Case RSI_PROP.p8c FirstDate 01/01/71 Precip(in) 50.4 Title Startup Case LastDate 12/31/72 Rain(in) 40.76 PrecFile MSP4918.pcp Events 134 Snow(in) 9.67 PartFile nurp50.p8p TotalHrs 16440 TotalYrs 1.88 Case Title Startup Case Case Data File RSI_PROP.p8c Path G:\MSOFFICE\AA Docs\RSI Marine\p8\ Case Notes: Storm Data File MSP4918.pcp Particle File nurp50.p8p Air Temp File File MSP4918.tem Time Steps Per Hour 10 Minimum Inter-Event Time (hrs) 10 Maximum Continuity Error % 2 Rainfall Breakpoint (inches) 0.8 Precipitation Scale Factor 1 Air Temp Offset (deg-F) 0 Loops Thru Storm File 1 Simulation Dates Start 6/1/1970 Keep 1/1/1971 Stop 12/31/1972 Max Snowfall Temperature (deg-f) 32.0 SnowMelt Temperature (deg-f) 32.0 Snowmelt Coef (in/degF-Day) 0.06 Soil Freeze Temp (deg-F) 32.0 Snowmelt Abstraction Factor 1.00 Evapo-Trans. Calibration Factor 1.00 Growing Season Start Month 5 Growing Season End Month 10 5-Day Antecedent Rainfall + Runoff (inches) CN Antecedent Moisture Condition AMC-II AMC-III Growing Season 1.40 2.10 NonGrowing Season 0.50 1.10 Watershed Data Watershed Name 1S 2S Runoff to Device POND 1P POND 1P Infiltration to Device Watershed Area 7.23 1.03 SCS Curve Number (Pervious) 74 74 Scale Factor for Pervious Runoff Load 1 1 Indirectly Connected Imperv Fraction 0 0.126 UnSwept Impervious Fraction 0.368 0 UnSwept Depression Storage (inches) 0.02 0.02 UnSwept Imperv. Runoff Coefficient 1 1 UnSwept Scale Factor for Particle Loads 1 1 Swept Impervious Fraction 0 0 Swept Depression Storage (inches) 0.02 0.02 Swept Imperv. Runoff Coefficient 1 1 Swept Scale Factor for Particle Loads 1 1 Sweeping Frequency 0 0 Sweeping Efficiency 1 1 Sweeping Start Date (MMDD) 101 101 Sweeping Stop Date (MMDD) 1231 1231 329 Device Data Device Name POND 1PPOND 1P - FILTRATION BENCHOUTFLOW Device Type POND INF_BASIN PIPE Infiltration Outlet OUTFLOW Normal Outlet POND 1P - FILTRATION BENCH Spillway Outlet OUTFLOW OUTFLOW Particle Removal Scale Factor 1 1 Bottom Elevation (ft) 722 726 Bottom Area (acres) 0.03 0.15 Permanent Pool Area (acres) 0.11 Permanent Pool Volume (ac-ft) 0.34 Perm Pool Infilt Rate (in/hr) 0 Flood Pool Area (acres) 0.23 0.18 Flood Pool Volume (ac-ft) 0.68 0.25 Flood Pool Infilt Rate (in/hr) 0 1 Infilt Basin Void Fraction (%) 100 Detention Pond Outlet Parameters Outlet Type WEIR Outlet Orifice Diameter (in) Orifice Discharge Coef Outlet Weir Length (ft) 115 Weir Discharge Coef 3 Perforated Riser Height (ft) Number of Holes in Riser Holes Diameter Flood Pool Drain Time (hrs) Swale Parameters Length of Flow Path (ft) Slope of Flow Path % Bottom Width (ft) Side Slope (ft-v/ft-h) Maximum Depth of Flow (ft) Mannings n Constant Hydraulic Model Pipe, Splitter, Aquifer Parameter Hydraulic Res. Time (hrs) 0 Particle Data Particle File nurp50.p8p Particle Class P0% P10% P30% P50% P80% Filtration Efficiency (%) 90 100 100 100 100 Settling Velocity (ft/hr) 0 0.03 0.3 1.5 15 First Order Decay Rate (1/day) 0 0 0 0 0 2nd Order Decay (1/day-ppm) 0 0 0 0 0 Impervious Runoff Conc (ppm) 1 0 0 0 0 Pervious Runoff Conc (ppm) 1 100 100 100 200 Pervious Conc Exponent 0 1 1 1 1 Accum. Rate (lbs-ac-day) 0 1.75 1.75 1.75 3.5 Particle Removal Rate (1/day) 0 0.25 0.25 0.25 0.25 Washoff Coefficient 0 20 20 20 20 Washoff Exponent 0 2 2 2 2 Sweeper Efficiency 0 0 0 5 15 Water Quality Component Data Component Name TSS TP TKN CU PB ZN HC Water Quality Criteria (ppm) Level 1 5 0.025 2 2 0.02 5 0.1 Level 2 10 0.05 1 0.0048 0.014 0.0362 0.5 Level 3 20 0.1 0.5 0.02 0.15 0.38 1 Content Scale Factor 1 1 1 1 1 1 1 Particle Composition (mg/kg) P0% 0 99000 600000 13600 2000 64000 250000 P10% 1000000 3850 15000 340 180 1600 22500 P30% 1000000 3850 15000 340 180 1600 22500 P50% 1000000 3850 15000 340 180 1600 22500 P80% 1000000 0 0 340 180 0 22500 330 STORM SEWER DESIGN COMPUTATION SHEETSheet 1 of 1Project: RSI MARINEJob No.: 23953 James R. Hill, Inc.Location: CHANHASSEN, MNPrepared by: VUN PLANNERS / ENGINEERS / SURVEYORSDescription: Storm Sewer Comps for 10-Year Rain EventDate: 5/31/2022 2999 West County Road 42, Suite 100 Burnsville, MN 55306Pipe Type: RCP/PVC 952 / 890-6044 fax 952 / 890-6244Manning's n : 0.013 Structure No.A C C x A Σ tiQ dUPSTREAM DOWNSTREAM Length Slope Dia. Q-full MH Vel.-full t- travelFrom To acres coef. C x A min. intens. c.f.s. Rim Inv. Bld Rim Inv. Depth ft. ft./ft. in. c.f.s. size ft./sec. min.Remarks1 CB-105 CBMH-104 1.40 0.50 0.70 0.70 10.0 6.1 4.29 741.30 737.803.50741.30 737.214.091180.50% 15 4.57 3.72 0.53 OK 12 CBMH-104 CBMH-103 0.44 0.70 0.31 1.01 10.5 6.0 6.03 741.30 737.214.09741.20 735.945.261261.01% 15 6.48 5.29 0.40 OK 23 CBMH-103 CBMH-102 0.53 0.70 0.37 2.13 10.9 6.0 12.75 741.20 735.745.46741.20 733.877.331261.48% 18 12.79 7.24 0.29 OK 34 CBMH-102 CBMH-101 0.71 0.70 0.50 2.63 11.2 5.8 15.34 741.20 733.677.53741.30 732.548.761131.00% 21 15.84 6.59 0.29 OK 45 CBMH-101 FES-100 0.00 0.70 0.00 3.08 11.5 5.7 17.58 741.30 727.8513.45727.50 727.500.00670.52% 27 22.38 5.63 0.20 OK 567 CB-106 CBMH-103 1.50 0.50 0.75 0.75 10.0 6.1 4.60 752.92 742.0010.92741.20 737.004.201623.09% 12 6.26 7.97 0.34 OK 189 CB-107 CBMH-101 0.90 0.50 0.45 0.45 10.0 6.1 2.76 742.86 738.864.00741.30 738.233.07631.00% 12 3.56 4.54 0.23 OK 1 331 332 Variance Request 3 of 3 – Landscape Peninsulas REQUEST FOR VARIANCE 3 of 3 – Landscape Peninsulas Variance is requested for reduced required vehicle use area landscaping requirements per Sec. 20-1181. a. Overview • The proposed development does not require parking stalls as all traffic just comes to load and unload then leaves the site. We are providing minimal drive aisle width to access the building and load buildings with trailers; therefore, we do not have space for landscape islands per the code. The landscape islands would negatively impact vehicular circulation and trailer movements onsite. b. Practical Difficulties • Typically, landscape islands are used to end cap or break up long expanses of vehicular parking stalls. Since we do not require parking stalls interior to this development all landscape islands would need to be in the drive lane which poses a practical and safety issue with the site. c. Denied Substantial Rights. • Denial of the variation would impact the ability for safe and effective truck and trailer circulation in the main drive aisle. d. Essential Elements of the Area. • The variance would not result in a use or development on the subject lot in regards to the following: 1) The acceptance of the variation will not be materially detrimental to the public welfare or materially injurious to the enjoyment, use, development, or value of property or improvements permitted in the vicinity. 2) Acceptance of the variance would not alter the essential character of the locality 3) The acceptance of the variance would not impair an adequate supply of light and air to the properties and improvements in the vicinity. 4) Acceptance of the variance would not cause any increase to congestion in the public streets or have any impact on street traffic. 5) There will be no increase danger to flood or fire. 333 Variance Request 3 of 3 – Landscape Peninsulas 6) Acceptance would not unduly tax public utilities and facilities in the area 7) Acceptance will not endanger the public health or safety. 334 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:8/4/2022 Re:10500 and 10520 Great Plains Boulevard PUD and Site Plan Review – Planning Case No. 2022-04A EASEMENTS The preliminary plat provided 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 were also provided over public utilities (only watermain at this phase) extending into the property. The location of the additional DUEs over the public water main are subject to change upon addressing the conditions associated with the public water main as discussed under the “Sanitary Sewer and Watermain” section of this report 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 eastern property lines that are listed as “Parcel ID: Gap”. It is unclear if these parcels are being considered in the lot combination of the 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. 335 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 original existing condition survey, dated 1/28/2022 and produced by James R. Hill, Inc., required updates, including: 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 The resubmitted existing condition survey, dated 5/6/2022, was updated to include these requirements and is in general conformance with City Ordinance. WETLANDS A study completed by Kjolhaug Environmental Services in 2021 shows there are no wetlands within the project site. City records show there is a wetland/wetditch 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 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 336 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 edge of a manage type 2 wetland. The wetland buffer and wetland setback should be shown on the grading plan and staked in the field prior to construction. The preliminary plans appear meet the wetland setback requirements, however the buffer area should be staked with permanent markers and planted with native vegetation as outlined in city code. 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 indicate that retaining walls may be required for the development. These walls are shown around the northern and eastern portions of the property. Portions of the retaining walls illustrated are shown to be located within public drainage and utility easements along the eastern 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 eastern 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 337 Access to the site is currently had from Flying Cloud Drive (CSAH 61) and is located near the eastern 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. 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 submittal show an existing building near the center of the property with access to Great Plains Boulevard provided 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 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 stormwater pond Bluff Creek 9-2-1 and into Bluff Creek before ultimately outleting to the Minnesota River. The preliminary plans provided with the 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 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. The Hydrologic and Hydraulic HydroCAD models show the site is decreasing rates leaving the site for the 2-, 10- and 100-year storm events. EROSION PREVENTION AND SEDIMENT 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 338 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) which generally appears feasible. The SWPPP is a required submittal element for preliminary plan 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 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). 339 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. 340 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 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 a sanitary sewer main to be installed within the development that then connects to the public main extended within the CSAH 61 right-of-way. This connection is not approved as the public sanitary sewer is not active nor ready for operation to service properties. If the applicant desires to construct sanitary sewer services and/or mains to service the future needs of the development, the applicant will be required to concurrently extend the public sanitary sewer main along CSAH 61 right-of-way to the eastern property line and cap the service line to the development. 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 east to facilitate the connection. Regardless, the development will be required to extend the 12” C900 PVC public watermain to the eastern property line along CSAH 61 right-of- way. The extension into the site must be along or near the improved private access to allow for reasonable access for future repair and maintenance and of adequate diameter to service the needs of the development. 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 applicant and their Engineer shall work with City staff in amending the construction plans, dated May 6, 2022 prepared by Joel G. Cooper, PE with James R. Hill, Inc. to fully satisfy staff concerns. Final construction plans will be subject to review and approval by 341 staff to ensure adherence to the most recent edition of the City’s Standard Specifications and Detail Plates and City Ordinances. 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. When the property and potential future properties connect to municipal services they will also be required to pay the utility hook-up fees at the rate in effect at the time of hook-up. Lastly, prior to commencement of any utility work, a copy of all required permits from the appropriate regulatory agencies shall be provided to the city which shall include but is not limited to the Minnesota Department of Health, Carver County, etc. STORM WATER MANAGEMENT The project site is located within the Lower Minnesota River Watershed District (LMRWD). 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. Based on the LMRWD’s website, a portion of the site includes Steep Slopes as defined by the LMRWD and will be required to meet LMRWD Rule F. 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.” These standards include water quality treatment resulting in the removal of 90% total suspended solids (TSS) and 60% total phosphorous (TP), and runoff rate control for the 2, 10, and 100-year storm events. A stormwater maintenance agreement and associated operations and maintenance plan is required for all private stormwater BMPs. The LMRWD requires volume control equal to one inch of runoff from impervious surfaces. The site is proposing 2.99 acres of impervious which requires 10,852 cubic feet of volume control. The filtration bench provides 16,921 cubic feet of volume control below the outlet meeting the volume control requirement. 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 reviewed submittal. If the soil borings show onsite soils are conducive to infiltration, the BMP will need to be redesigned to allow for 342 infiltration in line with LMRWD rules. If the soil borings support the current filtration bench design, because the site is providing more volume control than is required, the project will be meeting the water quality rules. A number of comments pertaining to the P8 modeling of the site have been provided to the applicant which should be addressed to confirm the water quality treatment being provided. The Stormwater Narrative and supporting Hydrologic and Hydraulic HydroCAD models were reviewed and found to have a few inconsistencies from the plans provided such as a different amount of proposed impervious, not properly modeling the proposed filtration bench, and not including the overflow from the pond. The current modeling shows the site meets rate control requirements showing a decrease in discharge rates leaving the site from the existing condition to the proposed condition in the 2-, 10- and 100-year storm event. The applicant shall update Hydrologic and Hydraulic models based on comments from City staff and provide satisfactory models, and rate analysis confirming compliance with requirements prior to recording the final plat. As noted in Appendix H of the City’s Surface Water Management Plan dated August 2006, the City requires at least 3 feet of freeboard between a building elevation and adjacent ponding features. The site is currently meeting this freeboard requirement with respect to the proposed BMP HWL elevation of 730.44. Once the HydroCAD models have been updated, it should be confirmed the site is still in compliance with the City’s 3-foot freeboard requirement between HWL and adjacent buildings. The grading plan shows there is only 0.4 feet of vertical separation between the intermediate EOFs within the driving area and the adjacent buildings proposed first floor elevation. The grading plan should be updated to provide a minimum 1.0 feet of separation between these EOFs and the adjacent buildings as outlined in Chapter 19 of City Code. The City’s water resources engineer reviewed the preliminary plans provided with the submittal. 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 343 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 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. RECOMMENDATIONS: Engineering: 1. Adequate public drainage and utility easements are required over any publicly owned and maintained water mains and will be subject to review and approval by staff prior to the recording of the final plat. 2. Any existing easements within the final plat area must be vacated prior to recording of the final plat. 3. The two parcels along the development’s eastern property lines listed with Carver County’s property information as “Parcel ID: Gap” will need to be identified appropriately prior to recording of the final plat. 4. Encroachment agreements are required of any proposed improvements within public drainage and utility easements after review and approval by the City Engineer. 5. The construction of any improvements that require access to adjacent properties shall receive a temporary construction easement or right-of-entry prior to issuance of any building permits. 6. Retaining walls over 4 feet in height shall be constructed in accordance with plans prepared by a registered engineer and shall be privately owned and maintained. 7. The development shall construct a commercial driveway access in accordance with the most recent edition of the City’s Standard Specifications and Detail Plates. 8. Any private utility needs to service the development, including sanitary sewer and potable water, will be required to be provided by the developer as the property is not serviced by adequate city utilities. 9. The proposed connection to the public sanitary sewer main is not approved. 10. The proposed water main tap to the public main shall only be used for fire suppression needs for the development. 11. The developer shall extend the 12” C900 PVC public watermain to the eastern property line along CSAH 61. 12. The water extension into the site must be along or near the improved private access to allow for reasonable access for future repair and maintenance. 13. The applicant and their Engineer shall work with City staff in amending the construction plans, dated May 6, 2022 prepared by Joel G. Cooper, PE to fully satisfy all plan review comments. Final construction plans will be subject to review and approval by staff. 344 14. The property and potential future properties associated with the final plat will be specially assessed for the extension of the public sanitary sewer when they connect. 15. The property and potential future properties associated with the final plat will be required to pay utility hook-up charges at the rate in effect at the time of connection to municipal services. 16. All required permits from the appropriate regulatory agencies including but not limited to the Minnesota Department of Health, Carver County Public, etc. shall be provided to the city prior to issuance of building permits. Water Resources: 1. The applicant shall provide a copy of an approved permit from the LMRWD as part of the building permit submittal to the City. 2. The applicant must submit soil borings and a geotechnical report with the building permit submittal to the City. Any modifications to the current design based on the geotechnical findings will be reviewed with future submittals to confirm compliance with the City’s requirements. 3. The applicant must update the Hydrologic and Hydraulic models per City comments and submit updated computations and models in their native forms with the building permit submittal to the City. 4. The applicant shall update P8 water quality modeling and resubmit the models in their native form to confirm the City’s water quality rule is met with the building permit submittal to the City. 5. The applicant shall update plans to provide the required freeboard from the proposed buildings and the EOF. 6. The applicant shall update plans to show wetland buffer markers and native vegetation in the wetland buffer area. 7. The applicant shall enter into an Operations and Maintenance Agreement for any proposed privately owned stormwater facilities which shall be recorded concurrently with the final plat. 8. 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. 345 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 Review comments from the July 2022 Planned Unit Development Site Plan submittal are made in blue italic font. Comments updated August 3, 2022. 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. i. Information 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. i. Applicant to provide this information c. Update: The median on CSAH 61 (Flying Cloud Dr.) is to be shifted west 60 feet to accommodate a truck and trailer to pull out of the way of traffic when making left turns into the subject site. Applicant can coordinate with Carver County Public Works with design specifics. See attachment of this change. A plan set shall be developed and signed by a licensed Engineer. This improvement shall be made at the expense of the applicant and an excavation permit will be required. 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. 346 i. Information 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. i. Condition applies b. Confirm the proposed drainage will not create an adverse impact to the County right of way. i. Condition applies c. Proposed grading shall tie-in and be compatible with the existing ground in the County right of way. i. Condition applies d. Update: The outlet apron needs to be stabilized per design guidance from MnDOT to minimize the erosion risk. e. Update: A meeting should be set up by the applicant’s engineer with Carver County Public Works to confirm the stormwater calculations. There are questions on the calculations for the culvert along CSAH 61. 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. i. Condition applies 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. i. Condition applies. A deposit will be required to ensure work within the right of way for required median change project is to County standards. c. The technical details of any final plat, its boundaries and form(s) will need to be reviewed and approved by the County Surveyor. i. Condition applies 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. i. Condition applies 347 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. i. Information These are the County’s comments at this time. If you have any questions or need further assistance, please contact staff noted below: Jack Johansen Transportation Planner Carver County Public Works 952.466.5283 jjohansen@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 348 ? ? X=560000 X=560000 11 1075 80 85 75 80 85 155160 SURFACE FINISHED TOP OF GROUND EXISTING VPI +86.86EL. 738.27+1.00%VPI +20.30EL. 735.29-1 .75%VPI +14.84EL. 726.64-1 .75%+0.80% 200.00’ V.C. K = 78 ex = 0.64’VPC +14.84 EL. 728.39VPT +14.84 EL. 727.44729.52727.85ROUNDABOUT PROFILE SEE E-CID GRADING GRADE EXCAVATION-MUCK SELECT GRANULAR MODIFIED GRANULAR SELECT ELEV. 727.19 STA 84+52.09 LOW POINT 1.5:1727.32VPI +91.24EL. 728.85+0.80%-0.67% 200.00’ V.C. K = 136 SSD = 835’VPC +91.24 EL. 728.05VPT +91.24 EL. 728.18728.55STA. 86+81.36END PROJECT728.41STA. 86+36.34END PERMANENT CONST.75 80 85730.91729.94728.66726.68725.66724.82723.73721.89720.41719.14718.32718.25718.38718.61721.37723.43722.75723.56724.91726.95726.34726.67727.41728.00728.41728.79728.91728.97728.94728.74728.54734.40734.90735.40735.90736.40736.90737.40737.90738.10737.47736.83736.19735.55734.77733.90733.02732.15731.27730.40729.52728.65727.85727.36727.19727.33727.72728.12728.52728.9285 86 87 8885 IRON IRON 5/19/20143:51:57 PMS:\AE\C\Carvr\124268\5-final-dsgn\50-final-dsgn\40-TransHwy\plnshts\124268_cp.dgnDRAWN BY: DESIGNER: DESIGN TEAM CHECKED BY: REVISIONSNO.BY DATE ST. PAUL, MN 55110 3535 VADNAIS CENTER DR. PHONE: (651)490-2000119938_cp7 236 FILE NO. Lic. No. Date: CARVR 124268 CARVER COUNTY,MN. Engineer under the laws of the State of Minnesota. my direct supervision and that I am a duly Licensed Professional I hereby certify that this plan was prepared by me or under Certified By: Printed Name: Licensed Professional Engineer 5/19/2014 OF 43475 CSAH 101 & CSAH 61 JASON E. OWENS CIF JEO JEO S.A.P. 194-020-010, S.A.P. 194-020-011 S.A.P. 070-701-009, S.P. 1009-24, S.A.P. 010-661-002, S.A.P. 010-701-002, 710 720 730 740 710 720 730 740 CP10 { E-CID MATCH LINE - EB STA 73+00CONSTRUCTION PLAN & PROFILE CP7 RETAINING WALL A { TRAIL RETAINING WALL A 32’18’23’32’30’18’23’32’14’14’16’16’10’ TRAIL +40 +50 3 3 3 3 1 1 1 1 +97 +19 1:10 16’14’ 14’12’ 1:15 +93 +76 8’ SHLD 10’ TRAIL 12’ 12’ 12’ 8’ SHLD +69 +73 1:151:10 6’ MED. +16 +26 +40 +50 SHEET ID5 INTERSECTION DETAIL FOR INFORMATION SEE CONSTRUCTION LIMITS CONSTRUCTION LIMITS CONSTRUCTION LIMITS (FLYING CLOUD DR) { WB CSAH 61 (FLYING CLOUD DR) { EB CSAH 61 EB CSAH 61 STA 73+00 - 89+00 { SB CSAH 101 { NB CSAH 101 STA. 86+81.36 { EB CSAH 61 END S.A.P. 010-661-002 CONSTRUCION END PERMANENT STA. 86+36.34 EB CSAH 61 CULVERT EXISTING BR. NO. 10549 22’17’ 15’17’15’22’EX R/W TE TE TE EX R/W EX R/W D&U EASE D&U EASETE TE EX R/WPROP R/W +14 +74 +16 +26C&G B624 C&G S524 C&G B624 C&G S524 (**) 2-1/c#12 (TRACERS) F&I (**) 2-1 1/4" CONDUITS (**) 2-1/c#12 (TRACERS) F&I (**) 2-1 1/4" CONDUITS HANDHOLE (URBAN) F&I (**) FIBER OPTIC SEE SHEET CP4 MATCH LINE (FIBER OPTIC)SEE SHEET CP4 MATCH LINE (FIBER OPTIC) FROM B624 TO S524. 3 10’ TRANSITION CURB AND GUTTER (PAID FOR AS 6" CONCRETE WALK). PER MNDOT STD. PL. 7113. 1 CONSTRUCT CONCRETE APROACH NOSE SPECIFIC NOTES: END GUARDRAIL EB STA. 75+15 11010’ TRAI L10’ TRAIL =10’R14’=104’R 700 700 C&G B624 C&G B624 C&G B424 1 JEO 5/19/2014 COUNTY’S PROPOSED PROFILE CHANGED THE END OF PROJECT PROFILE TO MATCH HENNEPIN EB CSAH 61 100’ SCALE IN FEET 349 Landscaping and Tree Preservation 10500/10520 Great Plains Blvd Existing vegetation on the site consists of many pioneer tree species. These types of trees that are the first to populate a site, often after a disturbance. Common species on the site include box elder, Siberian elm, green ash, cottonwood, and hackberry. The applicant is able to save the existing trees along the north property line adjacent to the regional trail corridor which is a mix of hackberry, elm and box elder. While the elm and box elder may not be highly desirable trees they do provide nesting and habitat for birds and pollinators. Preserving these trees also helps to meet bufferyard requirements for the north property line. The applicant is proposing a native prairie seed mix along the north property line. This location is ideal for a dry prairie seed mix and will work to provide habitat on site, provided that the proper establishment of the seed is followed. Staff recommends that the applicant provide a 3- year prairie management contract to ensure the establishment of the native plants. The applicant is proposing a diverse mix of tree and shrub species but needs to incorporate 2 additional understory genera in order to meet minimum diversity as required by ordinance so that no genus has more than 10 trees in quantity. Bufferyard plantings are required along the property lines. The landscape plan shows the following proposed landscaping for the site. Required plantings Proposed plantings Bufferyard A –North prop. line, Regional Trail, 780’ 7 overstory trees 14 Understory trees 21 Shrubs 19 overstory trees - existing 0 Understory trees 46 Shrubs Bufferyard B –South prop. Line, Hwy 61, 700’ 14 overstory trees 28 understory trees 42 shrubs 11 overstory trees 23 understory trees 25 shrubs Bufferyard B –west prop. line, Hwy 101 Great Plains Blvd, 500’ 10 Overstory trees 20 Understory trees 30 Shrubs 5 Overstory trees 8 Understory trees 20 Shrubs Bufferyard A -East property line, 460’ 4 Overstory trees 9 Understory trees 13 Shrubs 4 Overstory trees 8 Understory trees 12 Shrubs 350 The applicant does not meet minimum requirements for bufferyard plantings on the south, west and east sides of the site. Staff recommends that the minimum requirements for bufferyards in these areas. 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 as well as landscaped areas and 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 3090 sq. ft. of landscaped area around the parking lot, 5 landscape islands or peninsulas, and 12 trees for the parking lot. The applicant’s proposed landscaping as compared to the requirements for landscape area and parking lot trees is shown in the following table. Required Proposed Vehicular use landscape area 3,090 sq. ft.0 sq. ft. Trees/parking lot 12 trees 0 trees Landscape islands or peninsulas/parking lot 5 islands/peninsulas 0 islands/peninsulas The applicant is not proposing any parking stalls and the paved areas will be used for truck and trailer movements. Landscape islands would impede safe traffic movement in the site and therefore staff supports the variance request to not install landscape islands in the vehicular use area. Staff recommends that when the use of the site changes and parking is included, then all required landscape islands and/or peninsulas be installed. Recommendations: -The applicant shall meet minimum requirements for buffer yards. A revised landscape plan shall be submitted to the city. -The applicant shall provide a 3-year prairie establishment and management plan for the native seed area specified on the landscape plan. -When the use of the site changes and parking is included, then all required landscape islands and/or peninsulas be installed. -Incorporate 2 additional tree understory genera to Plant Schedule in order to meet minimum diversity as required by ordinance so that no genus has more than 10 trees in quantity. - 351 352 353 354 355