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2021-02-22 PACKET 06.2.
STAFF REPORT CASE: ZA2021-015 & PP2021-016 ITEM: 6.2 PUBLIC MEETING DATE: 2/22/21 TENTATIVE COUNCIL REVIEW DATE: 3/17/21 APPLICATION APPLICANT: Cardinal Crossings Development LLC REQUEST: A zoning amendment to rezone property located at north of Military Road and east of Jamaica Avenue from AG-1, Agricultural Preservation, to R-3, Single Family Residential, with a PUD, Planned Unit Development; and a preliminary plat for a residential subdivision to be called Cardinal Reserve, which will consist of 55 single-family lots and 4 outlots. SITE DATA LOCATION: ZONING: GUIDED LAND USE: 9054 and 9176 Military Road AG-1, Agricultural Preservation Low Density Residential LAND USE OF ADJACENT PROPERTIES: CURRENT GUIDED NORTH: Woodbury Woodbury EAST: Residential Low Density Residential SOUTH: Agricultural Low Density Residential WEST: Agricultural Low Density Residential SIZE: 22.16 acres DENSITY: 2.48 units per acre RECOMMENDATION Approval, subject to the conditions stipulated in this staff report. Cottage Grove COTTAGE GROVE PLANNING DIVISION � here Pride and Prosperity Meet Planning Staff Contact: Ben Boike, Comm. Dev. Director; 651-458-2830; bboike cottagegrovemn.gov Application Accepted:. 1/27/2021 60-Day Review Deadline: 3/27/2021 City of Cottage Grove Planning Division • 12800 Ravine Parkway South • Cottage Grove, MN 55016 Planning Staff Report Cardinal Reserve Planning Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Proposal Cardinal Crossings Development, LLC ("Developer") is requesting approval for a zoning amend- ment and preliminary plat on 22.16 acres of land located at 9054 and 9176 Military Road, located north and east of the intersection of Jamaica Avenue and Military Road. The current zoning of the parcel is AG-1, Agricultural Preservation; the Developer is proposing a zoning change to R-3, Single -Family Residential, with a PUD, Planned Unit Development. The plat for this residential subdivision is proposed to be called Cardinal Reserve and will consist of 55 residential lots for villa style, single-family homes. Location Map Review Schedule Application Accepted: January 27, 2021 Planning Commission Meeting: February 22, 2021 Tentative City Council Meeting: March 17, 2021 60-Day Review Deadline: March 28, 2021 Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 2 of 22 Background Site Conditions The site currently contains two single-family homes that will be removed as part of the proposed project. The site borders the recently approved Northwick Park single-family development to the east, a farmstead/farmland to the south, farmland to the west, and the Woodbury border/farmland to the north. is �F • J, y r Lit, WPM 7, Existing Property Conditions Planning Considerations Plan Review The plan set utilized for this review was submitted by Landform Professional Services, LLC dated January 27, 2021. All comments provided in the engineering review memo dated February 18, 2021, will be required to be addressed in a new submittal. Land Use and Zoning The property is guided for Low Density Residential in the 2040 Comprehensive Plan. No changes in land use are proposed with the development. Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 3 of 22 2040 Future Land Use M. f City Boundary — — — Major Future Roadways ® Agriculture Preserve Rural Residential Low Density Residential - Medium Density Residential _ High Density Residential - Commercial Mixed Use Mixed Use within 300' of Arterial Roadways © Industrial — Public/Semi-Public 0 Agricultural - Parks/Open Space - Golf Course Transitional Planning Area Open Water Street and Rai€road Right-of-Wo PkZli 2040 Land Use Map O The property is currently zoned AG-1, Agricultural Preservation. The Developer is requesting re- zoning the site from AG-1, Agricultural Preservation, to R-3, Single Family Residential, with a PUD, Planned Unit Development. The proposed preliminary plat and the land use map from the City's Future Vision 2040 Comprehen- sive Plan are consistent in the following ways: The Future Land Use Map in the Future Vision 2040 Comprehensive Plan identifies the future land use development of the applicant's property for low density residential land uses. The de- veloper is proposing single-family, villa style lots for the property, which is consistent with the City's Future Vision 2040 Comprehensive Plan. • Trail and sidewalk connections are proposed and acceptable to the City. The proposed preliminary plat and grading plan are consistent with the low -density residential land use designation for this area. Preliminary Plat The preliminary plat, as proposed, depicts a logical development given the performance standards of the zoning district. The plat consists of 55 units, which equates to a density of 2.48 units per acre, aligning with the Comprehensive Plan guidance of 2 to 4 units per acre. The proposed pre- liminary plat includes a total of 4 outlots, including Outlot A which will be deeded to the City for stormwater ponding, Outlots B and C which will be HOA maintained, and Outlot D which will be dedicated as public right-of-way (to be discussed more later). As noted in the engineering review memo dated February 18, 2021, staff is recommending that as part of the final plat, Outlot A shall be depicted as two separate outlots, one of which shall fully encompass the ponding areas and be deeded to the City. Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 4 of 22 NORTH SB9'S]'s1W 3WNz—a.s-z. zr.az� N�°5621W 1319.15 /wawzxa.naz� __�-- OUTLOTO O<ITLOTP I �� 14BILK td >) ^C \\p d F — —5— fin -- \ - I q'a,`�\ I i Ira revue s ounaT e ® P 6 Q / d , II II I BILK 111 vw I 1 mOU110TC Preliminary Plat 8 ! n Qf R ` % b lu • • C `'• ic, a 2 � A aT l R Ffi � F F 6 7 } r Site Plan Rendering Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 5 of 22 Neighborhood Meeting The Developer held a virtual neighborhood meeting via Zoom on February 16, 2021. Notice of the neighborhood meeting was sent to surrounding property owners within 500 feet of the project area. The intent of the meeting was to give neighboring property owners the opportunity to ask questions and present concerns they might have to the developer in the early planning stages of the proposed project. During the meeting, the Developer provided an overview of the proposed project, including back- ground/history of their company, an overview of the proposed site plan, as well as depictions of the proposed exterior architecture and interior design. Several adjacent property owners attended the meeting and inquired about the future re -align- ment of Jamaica Avenue and the proposed roundabout, phasing of the project, if there would be any impacts to the existing east -west driveway directly across the northern property line, and how the developer would provide access to a proposed community garden at the southeast corner of the property or the northwest corner of the property. The Developer answered the questions and welcomed any additional feedback from the residents moving forward. Zoning Development Standards The development performance standards of the requested zoning district classifications are detailed below. Lot Development Performance Standards Standard Proposed Zoning R-3 Cardinal Reserve R-31PUD Minimum Lot Area 10,000 sf * 8,109-15,959 sf Minimum lot width 75 feet *60 feet Minimum side yard setback House 10 feet *7.5 feet Minimum front yard setback 30 feet 30 feet Minimum rear yard setback 35 feet 35 feet Maximum Principal structure height 30 feet 30 feet *requires flexibility per the PUD request The requested PUD is needed to provide flexibility with minimum lot area, minimum lot width, and minimum side yard setbacks as noted above. The requested flexibility is consistent with previous development applications for single-family developments. Transportation/Access Primary access to the proposed development will be Military Road to the south via two street connections, Janero Avenue and Jarvis Avenue. Future development of the parcel to the south will provide connections to Ravine Parkway once Military Road is vacated. An additional connec- tion will be made via 62nd Street on the east side of the development connecting to the Northwick Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 6 of 22 Park development. All streets within the proposed development are proposed to be a 28-foot wide public street face-to-face with a minimum of a 60-foot right-of-way. r- \``"'" h4 'I i 1 1 A , i Site Access Points The submitted preliminary plat includes the street names per the depiction below, which have been designated per Washington County's uniform street naming guide and align with the street naming to the south. rIUjJUbVU JIICCI IVQ111 b Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 7 of 22 After review of the proposed street names with the Public Safety Department, staff is recommend- ing that the final plat be revised by using the following street naming in order to provide easier navigation within the proposed development. Recommended 5treet Names Right -of -Way As requested by the City, the Developer is proposing to dedicate the northwest corner of the property as public right-of-way to the City (depicted as Outlot D on the preliminary plat). Staff is recommending that the final plat be revised to show Outlot D as dedicated right-of-way rather than an outlot. As depicted below, the proposed right-of-way is planned be utilized in the future to construct a roundabout as surrounding parcels develop; the southern leg connecting to Jamaica Avenue, the western leg connecting to Military Road, and the northern leg connecting to Pioneer Trail in Woodbury. The City of Woodbury and Washington County are in agreement with the future need for intersection improvements at this location. Proposed Roundabout Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 8 of 22 Trails and Sidewalks The Developer is proposing sidewalks as depicted below. A sidewalk connection is proposed to connect this proposed development to the Northwick Park development to the east. As noted in the engineering review memo dated February 18, 2021, a sidewalk is required to be included on the east side of Jarvis Avenue. In addition, considering the future vacation of Military Road, the Developer will be required to pay half of the costs for the removal of the roadway and installation of a trail for the segment adjacent to the proposed development. These funds will be collected with the development agreement. vroposea biaewaiKs Stormwater Management Plan Storm sewer will be extended from all streets to the stormwater basins located in the northeastern area of the property. The proposed basin areas will be required to be dedicated to the City as outlots for future maintenance. Proposed Outlot A will be required to be deeded to the City. These basins will also require access points, which are to be a minimum of 20 feet wide, to allow for maintenance of the infrastructure in the future, and the Developer will be required to dedicate the accesses as an easement to the City. The property owners on either side of these access routes will be required to maintain the vegetation to the centerline of the access. The Developer's engi- neering consultant will continue to work with the City Engineer and SWWD to address stormwater requirements. Grading As with all new development projects, site grading is necessary to provide on -site stormwater detention, street and building pad elevations, and drainage swales for routing surface water runoff to appropriate storm sewer systems. Each building pad will be graded above the street elevation and at least three feet above the ordinary high-water elevation for stormwater basins. As noted on the preliminary grading, drainage, and erosion control plan, silt fence will be installed along the perimeter of the grading limits. Part of the grading requirements for the site include construction of the required ponding for the site. Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 9 of 22 The preliminary grading plan was reviewed by the City's engineering staff, and their review com- ments are included in the February 18, 2021 memorandum. Additional grading review will be required upon submittal of an updated plan set. These plans are required to be submitted and approved prior to issuance of a grading permit. Utilities The development parcel is located within the Metropolitan Urban Service Area (MUSA) and public utilities are available from Northwick Park in the southeast corner of the site. Water and sewer will be connected to existing eight -inch mains from Northwick Park. Water main should be stubbed for the future development of the property along the south side of Military Road. Existing overhead utilities along the north side of Military Road will be required to be removed or placed underground as part of the development project. Service lines from the existing houses to overhead utilities along the south side of Military Road will also need to be removed. The installation of the on -site utilities, roads, and supporting infrastructure will be privately de- signed and constructed to meet City specifications. The Engineering memo dated February 18, 2021, addresses the connections for the project. Drainage and utility easements are required over all utility connections and infrastructure, allowing the City access to public infrastructure. Tree Preservation City Code Title 11-6-19 requires completion of a tree inventory (all qualifying trees) for the entire project area of a proposed development. The Developer has conducted an individual tree inven- tory for the entire site. The inventory indicates a total of 10,252 qualifying inches to be removed. Developments of 10 units per acre or less are permitted to remove 35 percent of the total qualifying inches on site, without required mitigation. This would permit the Developer to remove 3,588 qualifying inches on the site, leaving a total of 6,664 additional qualified inches to mitigate. Per the zoning code, the Developer can mitigate by planting additional trees on site (50 percent of qualified inches which equates to 3,332 inches of new trees) or pay cash in lieu of the required mitigation or a combination of both. The Developer is proposing to plant 1,246 inches of new trees within the development; therefore, the proposed development is short 2,086 inches of trees. Cardinal Reserve -Tree Mitigation % qualifying inches permitted removal 10,252 total qualifying inches inventoried on site 3,588 inches permitted to be removed 6,664 inches additionally removed 6,664/2 (50% mitigation rate) 3,332 required mitigation inches 1,246 new inches proposed 2,086 mitigation inches {2,5 inch deciduous trees and/or 6-foot coniferous} 2,086 X $150 (cash in lieu of planting per inch) $312,900 Required Mitigation Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 10 of 22 The Developer is proposing to preserve a large portion of trees on site (highlighted areas below). As a result, Staff is proposing to credit the Developer 50 percent of the required tree mitigation fee, leaving a fee payment of $156,450. As a condition of the credit, staff is recommending that language be included in the Development Agreement preventing future clearing of these areas. V X: ` YC ..� �X X. ' II �. < Tree Preservation Areas Landscaping City Code requires a minimum amount of landscape plantings be installed as a part of single- family development projects within the City. Required plantings include boulevard trees (one per lot, two per corner lot) and individual lot landscaping as indicated in the table below: LandscapeCardinal Reserve - 55 single family lots Boulevard 4Trees/10 Trees Shrubs Total 10-5-311 10-5-317 Required Coniferous 1 per unit 55 55 1 per unit (46 units) 3 per unit 49 Overstory 165 226 2 per corner lot (4 units) 12 Shrubs 10 per unit 550 Required Landscape Calculation Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 11 of 22 The Developer has provided a landscape plan indicating the proposed locations of the required boulevard trees (one for each lot, two per corner lot). The City Forester has reviewed the location and species of each boulevard tree to ensure tree locations do not interfere with utility infrastruc- ture, pond access routes, hydrants, traffic signage, and street lighting. The City Forester's com- ments have been included in the engineer review memo dated February 18, 2021 and will be required to be complied with. A landscape escrow will be required to be submitted prior to issu- ance of a building permit in the amount of 150 percent of the landscape cost for HOA and mass plantings. City Code Title 10-5-3 requires an additional four trees (one coniferous and three deciduous) and ten shrubs be planted at each single-family lot. These required plantings are typically installed after construction of the residence and can be placed anywhere within the single-family lot. The Developer must work with the builder and property owner to ensure the appropriate plantings are installed prior to the issuance of a certificate of occupancy. Since Outlot D will be dedicated as right-of-way to the City, the landscaping plan must be revised to remove all proposed landscaping located in Outlot D. Finally, the Developer is proposing to maintain existing tree coverage along Military Road to pro- vide a buffer from the proposed development. In addition, the Developer is also proposing to plant additional trees along the corridor. Park Land and Open Space A minimum of 10 percent of developable area shall be required for new developments to provide residents with public recreation facilities, including parks and open spaces, as a part of develop- ment projects per City Code Title 10-4-3. The City's Comprehensive Plan does not guide any portion of this parcel as future passive or active park area. The Developer will be responsible to pay a park dedication fee in lieu of dedicated acreage. Park and open space markers are required to denote City -owned lots. The diagram below notes the required park and open space markers for the future City -owned outlots: 0 10. J 0 1IJ Park and Open Space Marker Locations Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 12 of 22 Area Charges and Development Fees Area charges and related development fees for this project will be based on the acreages shown on the final plat. These fees and charges will be accurately adjusted based on the final plat layout and be provided in the development agreement. All fees and charges will be memorialized within the development agreement. Payment to the City will be required at the time the development agreement is fully executed by the City and Developer. Architecture The Developer plans to be the sole builder within the proposed development. The proposed single -level villa -style product ranges from 1,500-1,700 square feet on the main floor and includes lower -level basements, a majority of which are proposed to be walk -out or look -out. The Devel- oper is currently proposing three to four base floor plans, which can each be customized to meet the buyer's needs. Prices are proposed to start at the low $400s. The Developer is proposing four-sided architecture, including fiber cement siding, trim and shake accents, stone facades on the front elevations, and front porches. 0 r, tz' \ dd Li Proposed Elevation Woodbury Development Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 13 of 22 Interior Photos of Proposed Product Homeowners Association A homeowner's association (HOA) is proposed for the development. The HOA will be responsible for all yard maintenance on each lot and outlots, and snow removal on sidewalks, driveways, and the private driveways. Public Hearing Notices Public hearing notices were mailed to 17 property owners who are within 500 feet of the proposed subdivision and published in the St. Paul Pioneer Press on February 10, 2021. Recommendation That the Planning Commission recommend that the City Council approve the following two appli- cations: A. A zoning amendment to change the zoning of property located north and east of the intersec- tion located at Military Road and Jamaica Avenue from AG-1, Agricultural Preservation, to R- 3, Single-family Residential with a PUD, Planned Unit Development. B. A preliminary plat for a residential subdivision to be called Cardinal Reserve, which will consist of 55 lots for single-family homes. Approval of the preliminary plat is subject to the following conditions: General Development 1. The Developer and builders must comply with all city ordinances and policies except as may be modified by agreement of the Developer and City staff. 2. All grading, drainage, erosion control, and utilities must conform to the final plans approved by the City Engineer. 3. The applicant receives appropriate building permits from the City, and permits or approvals from other regulatory agencies including, but not limited to: South Washington Watershed Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 14 of 22 District, Minnesota Department of Health, Minnesota Department of Natural Resources, and Minnesota Pollution Control Agency, and Washington County. 4. The Developer shall incorporate into the final plat the recommendations, requirements, and evaluations noted in the Bolton & Menk memorandum dated February 18, 2021. 5. The Developer shall be responsible for half of the cost for future removal of Military Road and installation of a future trail within the Military Road right-of-way for all areas directly adjacent to the property line of the development. 6. All conditions of the Ravine Parkway assessment waiver must be addressed at time of sale of the property and prior to the recording of a final plat. Platting, Land Dedication, and Easements 7. The final plat and the City's approval of the final plat are subject to additional conditions that will be listed in the City resolution approving the final plat and included in the develop- ment agreement. 8. The Developer must enter into an agreement with the City of Cottage Grove for the com- pletion of the public improvements required by City ordinances. Once the development agreement is completely executed and all cash deposits and payments are paid to the City, the City will release the final plat to the Developer for recording at the Washington County Recorder's Office. 9. The final plat must be recorded with the Washington County Recorder's Office before any building permit can be issued. 10. Common mailboxes meeting the approval of the local postmaster are required. Construction and Grading 11. A grading permit and financial guaranty is required prior to approval of grading activity related to the project. 12. Prior to Council review of the final plat, the Developer must submit for staff review and approval a final construction management plan that includes erosion control measures, project phasing for grading work, areas designated for preservation, a rock construction entrance, and construction -related vehicle parking. All emergency overflow swales musl be identified on the grading and erosion control plan. 13. A pre -construction meeting with City staff and the contractor must be held before site work begins. The contractor will provide the City with a project schedule for the various phases of construction. 14. Erosion control devices must be installed prior to commencement of any grading activity. Erosion control shall be performed in accordance with the recommended practices of the "Minnesota Construction Site Erosion and Sediment Control Planning Handbook" and the conditions stipulated in Title 11-6-12, Erosion Control During Construction of the City's Subdivision Ordinance. Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 15 of 22 15. Upon completing site grading, four copies of an "As -Built" survey for the site grade eleva- tions must be submitted to the City. An electronic file of the "As -Built" survey must be submitted to the City Engineer. 16. Temporary parking during construction shall be permitted on only one side of the street. No construction parking is permitted within the Northwick Park subdivision to the east or along Military Road. Construction access is prohibited from 62nd Street in the Northwick Park development. Lot Performance Standards 17. The architectural standards of the homes shall be consistent with the following: a. The minimum finished floor area for single-family dwellings is 1,200 square feet. b. The minimum attached garage floor area for single-family dwellings shall be 440 square feet. c. The minimum roof pitch for the main roof slope is a 6/12 pitch. d. Windows, doors, and garage doors must have a low or no maintenance trim on all four sides of the dwelling. e. Architectural materials must be varying on the front fagade of the principle structure (shakes, board and batten, brick or stone, accent siding, shutters, window boxes, etc.). Architectural design is required on all four sides of the principal structure. 18. Setbacks required: a. Front: 30 feet b. Rear: 35 feet c. Side: 7.5 feet 19. Home styles and floorplans may be offered subject to administrative review and approval from City staff. ItilitiPc 20. The Developer is responsible for providing the necessary easements and costs associated with road and utility improvements serving the site. All drainage and utility easements, as recommended by the City Engineer, must be shown on the final plat and dedicated to the City for public purposes. 21. The water utility plan shall conform to the City's water supply and distribution plan. 22. The sanitary sewer utility plan shall conform to the City's sanitary sewer comprehensive plan. 23. All stormwater designs shall meet the intent of the City's Surface Water Management Plan and the SWWD water management plan. Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 16 of 22 24. The Developer must make all necessary adjustments to the curb stops, gate valves, and metal castings to bring them flush with the topsoil (after grading). Streets 25. The street names for proposed public streets shall be revised as noted in the Planning Commission staff memo dated February 22, 2021 and labeled accordingly on the final plat. 26. The City's curb replacement policy must be complied with during home building. A bitumi- nous wedge shall be maintained on the street until 90 percent of the homes are constructed in any phase or in three years. 27. Sidewalk shall be installed on one side of each public street within the development align- ing and connecting with existing sidewalks in neighboring developments. 28. The existing driveways and culverts for 9054 Military Road and 9176 Military Road should be removed from the Military Road right-of-way and regraded to follow the existing ditch section. 29. The applicant shall be responsible for the removal or undergrounding of existing overhead utilities along the north side of Military Road as part of the development project. Service lines from the existing houses to overhead utilities along the south side of Military Road will also need to be removed. 30. The applicant shall dedicate Outlot D as right-of-way to the City and shall be memorialized on the final plat. Park Dedication 31. The park dedication requirements will be satisfied upon the payment of the required cash in lieu of land dedication as detailed in the development agreement and at the time of recording of the Final plat. Landscaping and Irrigation 32. Irrigation systems installed within City right-of-way are solely the responsibility and risk of the Developers, or individual. The City is not responsible or liable for any damage or costs related to installation, damage, or replacement of lawn irrigation systems placed in the boulevard as a result of City use of or future changes in the right of way. Private irrigation lines are prohibited from crossing under City streets. 33. All proposed tree locations on the proposed landscape plan shall be reviewed and ap- proved by the City Forester. Deciduous trees should be located a minimum of 5 feet off any utility pipe or walkway. Coniferous trees shall be located a minimum of 15 feet off any utility pipe or walkway. No trees shall be located within a storm pond high water level or within the pond access routes. Trees shall not be located so as to interfere with hydrants, street lighting, and traffic signage. 34. The Developer is responsible for establishing the final grades, topsoil, and seeding of all the lots, outlots, and boulevards within the subdivision. Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 17 of 22 35. Four trees and ten shrubs are required to be installed within each lot prior to the issuance of a certificate of occupancy. 36. As part of the final plat, Outlot A shall be depicted as two separate outlots, one of which shall fully encompass the ponding areas and be deeded to the City. 37. The Developer shall be responsible for a cash in lieu payment of $156,450 for tree miti- gation. 38. The proposed landscape plan shall be revised by removing all proposed landscaping within Outlot D. 39. The HOA maintained outlots shall include a provision in the Development Agreement preventing clearing of the trees within the outlots. Surface Water Management 40. The lowest opening ground elevations of all structures shall be a minimum of one foot above an adjacent overland emergency overflow elevation, two feet above an adjacent pond emergency overflow elevation, and three feet above adjacent pond high water levels. 41. All emergency overflow swales must be identified on the grading and erosion control plan. Each fall while home building is occurring, emergency overflow elevations shall be sur- veyed to ensure the emergency overflows are properly graded and maintained. Onsite Infrastructure Improvements 42. A street lighting plan must be submitted by the Developer and approved by the City Engi- neer. 43. The Developer must place iron monuments at all lot and block corners and at all other angle points on property lines. Iron monuments must be placed after all site and right-of- way grading has been completed in order to preserve the lot markers for future property owners. 44. The Developer is responsible for the cost and installation of public land boundary markers at the corners of private properties abutting Outlot A as determined by the Parks Director. The boundary markers are $115 per marker and are to be picked up at the Cottage Grove Public Works facility. The boundary markers must be installed before a building permit is issued for the lot that abuts the recommended marker location. The actual number of park boundary markers will be determined once the final boundary configuration for the Outlots is determined. 45. The Developer shall contact the electric, telephone, gas, and cable companies that are authorized to provide service to the property to ascertain whether any of those utility pro- viders intend to install underground lines within the development. Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 18 of 22 46. The Developer is responsible for all street maintenance; upkeep and repair of curbs, boule- vards, and sod; and street sweeping until the project is complete. All streets must be main- tained free of debris and soil until the subdivision is completed. The Developer hereby agrees to indemnify and hold the City harmless from any and all claims for damages of any nature whatsoever arising out of Developer's acts or omissions in performing the obliga- tions imposed upon Developer by this paragraph. 47. The Developer will provide to the City copies of test results, suppliers, subcontractors, etc., relating to the work to be performed by the Developer. The Developer agrees to furnish to the City a list of contractors being considered for retention by the developer for the perfor- mance of the work described in the development agreement. 48. The Developer is responsible for the control of grass and weeds in excess of eight inches on vacant lots or boulevards within their development. Failure to control grass and weeds will be considered a Developer's default and the City may, at its option, perform the work and the Developer shall promptly reimburse the City for any expense incurred by the City. 49. The Developer is responsible to require each builder within the development to provide a rock entrance for every house that is to be constructed in the development. This entrance is required to be installed upon initial construction of the home, but a paved driveway must be completed before the City will issue a certificate of occupancy for that property. See City Standard Plate ERO-12 for construction requirements. The water service line and shut-off valve shall not be located in the driveway. 50. The Developer will be required to conduct all major activities to construct the public improvements during the following hours of operation: Monday through Friday Saturday Sunday 7:00 A.M. to 7:00 P.M. 9:00 A.M. to 5:00 P.M. Not Allowed This does not apply to activities that are required on a 24-hour basis such as dewatering or bi-pass pumping, etc. Any deviations from the above hours are subject to approval of the City Engineer. 51. The Developer shall weekly, or more often if required by the City Engineer, clear from the public streets and property any soil, earth, or debris resulting from construction work by the Developer or its agents or assigns. All debris, including brush, vegetation, trees, and dem- olition materials, shall be properly disposed of off -site; burying construction debris, trees, and other vegetation is prohibited. Burning of trees and structures is prohibited, except for fire training only. 52. The Developer grants the City, its agents, employees, officers, and contractors' permission to enter the site to perform all necessary work and/or inspections during grading and the installation of public improvements by the Developer. 53. Upon acceptance of the public improvements by the City, all responsibility for the improve- ments must be assumed by the City, except that the Developer is subject to a one-year Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 19 of 22 warranty on the construction of the improvements from the time of acceptance by the City of all public improvements. 54. The City will not have any responsibility with respect to any street or other public improve- ments unless the street or other public improvements have been formally accepted by the City. Upon completion of the improvements, the Developer may request, in writing, their acceptance by the City. This request must be accompanied by proof that there are no outstanding judgments or liens against the land upon which the public improvements are located. Upon the City's receipt of a written request for acceptance from the Developer, the City Engineer will conduct a final inspection of the public improvements and will furnish a written list of any deficiencies noted. The City Engineer will base the inspection on com- pliance with the approved construction plans, profiles, and specifications, as required by the city ordinance. Upon satisfactory completion of all construction in accordance with the approved plans, profiles, and specifications, as certified by a registered engineer in the State of Minnesota, and receipt of reproducible record drawings and satisfactory test re- sults, the City Engineer will notify the Developer in writing of the City's approval of the public improvements and schedule the request for acceptance for review by the City Council. 55. Upon completion of the work, the Developer shall provide the City with a full set of as -built plans for City records and transmitted to the City in a DWG Autocad format and pdf format. Developer must also furnish the City with a pdf format of the final plat and four prints of the recorded plat. If the Developer does not provide as-builts, the City will produce them at the developer's expense. 56. The Developer is responsible for completing the final grade on all lots and ensuring all boulevards and yards have a minimum of four inches of organic topsoil or black dirt on them. Placement of organic topsoil or black dirt, sod, and shrubs must not be transferred to homeowners. 57. Notwithstanding any other provision of this resolution to the contrary, the City will issue building permits for model homes as outlined in the Developer's Agreement at time of Final Plat. 58. No additional building permits beyond the model permits will be issued until such time as adequate public utilities, including streetlights and streets, have been installed and deter- mined to be available to use. The City will require that the utilities, lighting, and street sys- tem have been constructed and considered operational prior to issuance of any building permits in the development. Also, the City must have all the necessary right-of-way and/or easements needed for the property to be serviced. 59. The Developer acknowledges in the development agreement that prior to the construction of the improvements, site conditions, access to paved roads, and fire hydrants will be sub- standard and will not be optimized until the improvements are completed. To the fullest extent permitted by law, Developer agrees to indemnify the City, its officers, employees, agents and others acting on its behalf and to hold them harmless and defend and protect them (with counsel of the City's choosing) from and against any and all loss, damage, Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 20 of 22 liability, cost, and expense, specifically including attorneys' fees and other costs and ex- penses of defense, which result from, or otherwise arise in connection with any actions, claims or proceedings of any sort caused by or arising from the construction or use of the model homes by Developer or its contractors, employees, agents, or assigns, prior to the improvements being completed. Such claims shall include, but not be limited to, claims that the model homes could not be accessed properly or in a timely manner by fire equipment and/or police or emergency vehicles due to road or site conditions or claims based on lack of proximity to fire hydrants or lack of adequate fire protection. Although indemnification shall cease for claims arising after the improvements are completed and accepted, indem- nification obligations for claims arising prior to the completion of the Improvements shall survive the termination of the agreement. 60. Adequate dumpsters must be on site during construction of streets, utilities, and houses. When the dumpsters are full, they must be emptied immediately or replaced with an empty dumpster. The Developer is responsible to require each builder to provide an on -site dump- ster to contain all construction debris, thereby preventing it from being blown off -site. It is the responsibility of the Developer to ensure no debris blows on or off site. 61. Adequate portable toilets must be on -site at all times during construction of utilities, road- ways, and houses. At no time shall any house under construction be more than 250 feet away from any portable toilet. Toilets must be regularly emptied. 62. After the site is rough graded, but before any utility construction commences or building permits are issued, the erosion control plan shall be implemented by the Developer and inspected and approved by the City. The City may impose additional erosion control re- quirements if it is determined that the methods implemented are insufficient to properly control erosion. 63. All areas disturbed by the excavation and back -filling operations shall be fertilized, mulched, and disc anchored as necessary for seed retention. 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, or in an emergency deter- mined at the sole discretion of the City, the City may take such action as it deems appro- priate to control erosion immediately. The City will notify the Developer in advance of any proposed action, but failure of the City to do so will not affect the Developer's and the City's rights or obligations. If the Developer does not reimburse the City for any costs of the City incurred for such work within thirty (30) days, the City may draw down the letter of credit to pay such costs. 64. The Developer is responsible for erosion control inspection fees at the current rates. If the Developer does not reimburse the City for the costs the City incurred for such work within thirty (30) days, the City may draw down the letter of credit to pay such costs. 65. Dust control measures must be in place to prevent dust and erosion, including, but not limited to daily watering, silt fences, and seeding. The City Engineer may impose reason- able measures to reduce dust at the site. Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 21 of 22 66. It is the Developer's responsibility to keep active and up to date the Developer's contract and financial surety (e.g. Letter of Credit, etc.). These documents must remain active until the Developer has been released from any further obligation by City Council motion re- ceived in writing from the City Engineer. 67. The Developer must provide to the City an irrevocable letter of credit for on -site improve- ments to ensure that the Developer will construct or install and pay for the following: a. Paved streets b. Concrete curb and gutter c. Hard surface driveways d. Street lights e. Water system (trunk and lateral) and water house service stubs f. Sanitary sewer system (trunk and lateral) and sanitary house service stubs g. Storm sewer system h. Street and traffic control signs i. Shaping and sodding drainage ways and emergency overflows in accordance with the drainage development plan approved by the City Engineer j. Adjust and repair new and existing utilities k. Sidewalks I. Erosion control, site grading and ponding m. Surveying and staking n. Stormwater basin, and open space boundary markers o. Landscaping These improvements are all in conformance with City approved plans and specifications and will be installed at the sole expense of the Developer in conformance with Title 10, Chapter 5 of the City Code; or if in lieu of the Developer making said improvements, the City proceeds to install any or all of said improvements, under the provisions of Chapter 429 of the Minnesota Statutes, the City Council may reduce said Letter of Credit by the amounts provided, upon the ordering, for those public improvements so undertaken. The Letter of Credit must have the same expiration date as the Developer's contract. The bank and form of the security is subject to the reasonable approval of the City. The security shall be automatically renewing. The term of the security may be extended from time to time if the extension is furnished to the City at least forty-five (45) days prior to the stated expiration date of the security. If the required public improvements are not com- pleted, or terms of the Development Agreement are not satisfied, at least thirty (30) days prior to the expiration of a letter of credit, the city may draw down the letter of credit. The City may draw down the security without prior notice for any default of the Development Agreement. The minimum amount for this financial guarantee will be included in the devel- opment agreement. Planning Staff Report — Cardinal Reserve Case Nos. ZA2021-015 & PP2021-016 February 22, 2021 Page 22 of 22 68. The Developer must post a cash escrow with the City's Finance Director to cover engineer- ing, testing, legal, and administrative costs incurred by the City. If this non -interest -bearing account balance becomes deficient, the Developer must deposit additional funds. This must be done before final bonding obligations are complete. This escrow amount will be included in the development agreement. Prepared by: Ben Boike Community Development Director Attachments: — Developer Narrative — Site Plan Rendering — Preliminary Civil Drawings 01/27/2021 — Engineering Review Memorandum 2/18/2021 , "Pa fo �►� jr M •!t d •y� Site Plarr L A N s F 0! M 22 Acres 6a Consp Gro+rs. WI +rr.+.r 0 . 0 s 02 It 2021 IHE _ wGooauav COTTAGE GROVE ti Yn IT IT a 5 3 O NORTH CARDINAL RESERVE �a N. LB 1eia°�" a wwoRoo Tamil 111. BILIN M�ll1n�FTEovEN,nNA n�oa� MIN aonGreETe ---J COTTAGE GROVE, MINNESOTA :pnamN ,^� ".RAN, oon� O Fnaaw crILNoowT °a oH �c moasse�uERu � aNcEsxEErDETIIL wn„jai LII c. IE w"ILL 0�—r-^� I—INCTEFowT %I D B5 cLO U.E�c�mow TELLsxoNE TE B.I sLOFEDireEmio ` ) PROIEI n-ntrwI-IEB.I�rw.Era �•\.+•/ a UNRImow ELLTac ansuNE ®M �, ® 0 anTa ensiN tiaNxoLE ZDR,roar H `� mNCN_TEare ONCINo �Tni.NA.ILL �III =aF. _ _,_ eounreD crorevgwER 8NE"ER rNnr,E w, mw F'v° ZIP IT,q �a, wm��v o sEr1a x1a iONFwE �Nrvrorvuse mncxrvwua _ _»_ PC IILVET —I O to—RI OIICON srman wnTEa�wiN n A LINE O 18EFIRnTE m�Na=II.—I�E.AP1cren,,�®N.. esa,Dmm�Na=14.—I� go-aae F,�p trvavoimmeaei��i�s m�,a= RD cvn�m FosT n A DEFT. corvvscnoN rem Fiv+ �n x�c--- ® O�ia INI ntvE onst nE�NDErecimwD novae Fav+M r� a nae N T nwi EIt "�laoN TIAE8 In,:D "e,lo'CaoN ® TAELNEo� NTO E NI ® ICTwB1NN ® RnN_D END-10N aeo TNH To ® —o. oreeueon 1p— O NOTE N—ER m OR) —RIN_D C8TINa Den.vFswmNene Five uaion,na mrt�tlamonD PT IEI ID PoI,t ire raenc (A) GY C8TINa PER V—ED FAT soissoanc CARDINAL TOMEBUILDERS AGENI "D E,I'MdN'„t29 C ML EN GI VEER SURVEYOR LANDFORM VRE51, LANDFORM SITE III LANDSCAPEARCHTECT LANDFORM VrtE513 CARDINAL HOMEBUILDERS CITY OF C COTTAGE GROVE MINNESOTA CARDINAL RESERVE COTTAGE GROVE, MINNESOTA L A N D F O R M apIIS MN 5mol IaIci--t XFF r - -I I � J CARDINAL HOMEBUILDERS he CITY OF IL m�no aomm e oomou�o�oamoessrere eann�vnooCoM,00—o�- ea COTTAGE GROVE �oM000mom (Cal IT Con area M]NNESOTA 11-on102729 CARDINAL RESERVE COTTAGE GROVE, MINNE60TA Po,ais 9 romurw3—ss 2 6 �c \�N PRELIMINARY PLAT 01272021 L A N D F O R M FILE 51 ME ® AMN "'IlaaZtlio Ad.gt PROJECT NO C-0011 O NORTH PRELIMINARY PLAT Know what's Below. 1 Call before you dig. 0 100 200 89'5731"W 300e84T rvTmm,�mse�s, s I� II an N99°5023 W 1319.1 �rr xx s' i x x ;<x �y Ses. 4! x x f s Xx X �i 0 Po�w�sua�ac o PRow��R \ sPOTE,E°°�ory 0 ��wwRT m..N� I. o s: EOR_'C,N, To ° o�krv_N-Im" sEa�°�wrvawPLL . p"D,"` 'o"` _ 11 ® wwou_.wE"Ms _�°s�_�_ sarv.�ar�s�Ea ® ® ceTc, 118N "IT11.1D ® nnwo Ervos[cnory c owErecwwo Gnsrvwiry ® owmrvTao�s-rucnaE wo o oT 0V 11111PIONR w 111R1i111coassToa Po r°woPoore ', ry 1.11 10 1TI 0 TTRI M 1 a © wE„ o,�N°TP011 [ 7 :E,P,oROEE °To s x\9 x,* �� x - i �F \ \ \ n >e �° ° ° ° a CARDINAL HOMEBUILDERS 02 CITY OF E,.a �- °biba"'"petl COTTAGE GROVE He M]NNESOTA CARDINAL RESERVE COTTAGE GROVE MINNESOTA 12 x L A N D F O R M Ran 5bR FII INIE MN 66n01 IanZtlioZm.oet IT QO NORTH PROJECT ® EASTING CONDITIONS ; DEMOLITIONISURVEY Know what's Below. Call before You dig. 0 100 200 CARDINAL HOMEBUILDERS CITY OF C IL COTTAGE GROVE MINNESOTA CARDINAL RESERVE COTTAGE GROVE, MINNESOTA F oE�oTEcowi E stir r BLOCK 1 of sEren� 5 i L- Pao J i MAIN STREET 1.—ELooaTIoNINC-11roNOEwor. PRELIMINARY PLAT TYPICAL LOT DETAIL 01272021 No scALE L A N D F 0 R M ® AMMN 6610'I IanZtlioZ 1117 FILE E m.g PROJECT NO c—Ooll O NORTH SITE PLAN Know what's Below. Call before you sip. 0 100 200 / �T - V/ �P — I� I III I CARDINAL HOMEBUILDERS _ so4Nw000A1EN�ENoaTH — — — T I � VOI I - eo, - CITY OF I I Aro, —— — CIL W a —— t CATION - 1 COTTAGE GROVE �' I g �,m �• I.-�II She oQaa� dCH.� "k ` P I it �o F {s„ fT-FS,m m <. M]NNESOTA 6 00 1 93500 s mws 6 a , > n �I 0� OUTLOT' ,� CARDINAL � a 6 �, wo `"xi w� os RESERVE r s, Y g r — � � o ?. � � — � �� � ' T �� T � �✓, 1� -_ — — -. TI COTTAGE GROVE,NNE TA s, s s �_ �nRis -� - ��, b IN/o� / are — a w �, m= N P 9a0 A � r P OUTLOT B TI - ,r _ a _ a r , BLK 1N 13 � �� o��...AFa� � ���W,F 0� \0 s- a �� s .aa�ra .. ,. �,� Iwo m o oov sovorrrorsou.wce� J91 PRELIMINARY PLAT 01,27,2021 M IF MAIN STREET s TYPICAL LOT DETAIL L A N D F O R M SEE SHEETC32 NO —lb-II .. mop s i-e,o_/ mam.ao�,m�.w�aaron / A,` --• ILL Avsnue T� an ray® ssas ran-Ae _l m�o.ao�,m�.w�a�+n2-1 FILE NAME MN 66Q0'I b. tan 1ADPLnet )))))))))))))))) owy nc 11 noraorwur awny PROJECT NO . GRADING, DRAINAGE & ' VO NORTH EROSION CONTROL -EAST w�antl 1mpaeQ1ea Know what's Below. Call before you dig. 0 50 100 CARDINAL HOMEBUILDERS =AP�ENUE1NORTH �5 2A TEL M, 01 .11 CITY OF CWk -, COTTAGE GROVE MIENESOTA CARDINAL RESERVE COTTAGE GROVE, UINNESOTA oexmesonnxwenurwn —_.moo BLK 1 MAIN STREET ATYPICAL LOT DETAIL N—LE I—L CE11RI DEIINIIIN Ii;l� cp 21�---a,a---,,E, PRELIMINARY PLAT 1-, E. 1 01272021 L A IN ; IF 0 k M Ran 5b HIM * . . * III 1-ffi 1111 A,,,,, T. '12 ""2_2_7" ........ME... . . .... "" ' FILE NA1112-11 — O PROJECT NO c—ooll GRADING, DRAINAGE & NORTH EROSION CONTROL - WES r Know what's Below. C3.2 Call before you dig. 0 50 100 CARDINAL HOMEBUILDERS CITY OF C IL COTTAGE GROVE MINNESOTA CARDINAL RESERVE COTTAGE GROVE, MINNESOTA YK—IN'll—KY —1 01272021 L A N D F O R M F—SbWFII 2-1 2-17 apoll, MN 6610'I I-di.-T.-t _ CARDINAL HOMEBUILDERS im�� w��w ®A. i — -- — _ C INFLTRATION �r Ir � / COTTAGE GROVE 6 ^ oqU UqE BENCH �� �� �b, / ` 9 _ 1 / / M]NNESOTA o O aoE 3 �� _ \ BTM 93500 _ POND x1 - --- " BTM 93Ao - - Q 8 NWL Nv 936A0 rvvmsm �� � I / � mo-vaew�939zs 2 �� 6 ,n.;, OUTLOTC ,�+ s / / o'LETz CARDINAL 'M� „ , M�s�=, _ � � / RESERVE L r r / _C COTTAGE GROVE, MINNESOTA /\ �UTLOT A� 3 8 r...7e ..A�..r.a. .�. mE h s�"� ,. �� "3��/ NORTH NL E I Om00 4, i � �� —�asr��. � � r s0 . ; ® � ue., 22 o � s „e — �� 7 _ s �o aE,..HR • _ ��'�� •= � Knwv whaYs B@IOW. I� I� OUTLOT B % H IL P ,00 Coll ca«eyou Ap. n ,e �sk�EROP�ma � - Fz mr BLK 3 -- i, _ F 3 �� a N. .. a:a "� 4 T T ocs m NO s�EE (',� L 3\.3,.i3 G�,r P�om*a�1.TMs1EE* """"'m PRELIMINARY PLAT \ J _ —! - � �00 01272021 L A INIFO R M SEE C42 S �v mcm .oP o,uuER ' wn,ma� oao,asz-rva�,�,: SHEET 42 _ ��� /. / p Rdn SlbbflnW D z s \\" / A .:ems nHvenue 2-1 17 mn " - _ ,Ys a� xica apol's MN 66Q0'I lantlioZm Onet FILE NAME C401— MP21 e n113 -1 90. m erverer,wv1 mtamaue cworia-De,a ,L IManeaamr.11111— u� 1PEa I EL -TONS e n,11 EROErn 11E,, T1 I'H' r sms rvv srz so nwamm,"= z E -nmm e.v�artonnmmerwumnys. oexerpsee�rvrmsrm�aeyrenwmpartm s. mysonxeweto 3'esoname eayempaemem rv,ameam �� suvwnomnna.,�nnu� itv srzas oimETa rE �l\ s" \yam uva mrmamrm rct y aamyUNLITYP AN ntrvere nyamepanc. nomwumon mawa�aui+awnec enuben omc em mseewuary ownnmyaae. wm monmrmamr. O 3� M •..•••�• rorrwe 6agh, mxxwrn EASr ° a 'm"" mom�mm 9 GENERIC SKIMMER STRUCTURE OCS ^v , a an a, o�mm, na O,Pom.�� ssxmwoa',aa�m, #1 CARDINAL HOMEBUILDERS ELM, CITY OF C COTTAGE GROVE MINNESOTA CARDINAL RESERVE COTTAGE GROVE, MINNESOTA C�\ 12 14 11 RR PRELIMINARY PLAT 01272021 L A N D F O R M ® FILEZ tl AMEI.MN 66Q0'I lanADPLnet PROJECT NO c—ooll O NORTH LTHLIT PLAN Know what's Below. Call before you dig. 0 50 100 OR ---------------- /-NONSUL THE... N.—N \qO" EUERNE STANDARD DETAILS Drtcx aEacs COTTAGE GROVE, MINNESOTA ERO-11 DITCH CHECKS E MPOR-YSEDIMENTTPP SIN —TYPE III PARRICPDES (30'x30k2'BELOW0 —--AnO Pnv[xErrt--- ARZE�TT°° ME�m DR-1 EXISTDaGSTORM MEND C0. PIFE &1LC TPE NI BPAPIGD6 HEM �STA TroRAaTDARD NF T�AIIS G age TRn seD /� ry Ory FUTURE smEEr _ GROVE, MINNE;TA 910-15 TYPICAL BENCH DETAIL NO SCALE /�SQpf1� cP� O 0 oQo oq,6 _ oo°o W WDCM318I' M NIMUMBE RFNO°SOO�°�°� WASHED ROCK OR a WWDDIIPSPER J SPEC[FlCATIORI J// On TOMINIMQE RUNOFFFROM SItE OR �W.ROC-T.—MAINUL rIE P D MIGRATION PREVENT SEDIMENTATION TRAOGNG. UIPRLT ro Cottage SiANDARONON� Grove ROEKANOwoo¢aw COTTAGE GROVE, MINNESOTA ERO 11 WERFLOW 6 Sj DF TH GARB N' % 00�00000 NOTE: US BWINCO 0.0M DRAIN CG13 oR iDEgNDTRE ON —NG TYPE) AUGHROWGUTTER MODELS, OR ET YAPPRwEO EQUAL ceaEcroa PUT) OE BOWXS%OFTE I OFNNIFRTTER EMBLY p�RusEMe,M ER� itlOAT�LOW PJ HIGx-FLOW FABWC INLET ANDPIUJ DETAILS CON:ag¢ LET PRDIECIION UTOI Grave �U, sERT COTTAGE GROVE, MINNESOTA ERO-9 ELFENCE PosF(r-Foss, MMA%NIMUMS. GE ADI FPBRIC TO FOSR WIRI MINIMUM J➢P TIES INDTOP 7NS[FLAEEPER FOST s61P��No.TABLE D � 1. -1 (MAwwE sucEO). EANg M--INEsLUX PRONIAC A A 8'-lN DEPTH (PE OUMFIAP) TO F TRENCH MUST BE COMPACT)➢ BY P-EmN1°rOFSEEL `PDSTSTO piPECTIOH OF GINtFREE ILON / I/ �PosT EMBEON[vT WHEN r STANDPRD DETAILS Gmttiareg¢ M-INE SLICED SRT FENCE gym.°.w Xr COTTAGE GROVE, MINNESOTA r ERO-I CONSTRUCTION ENTRANCE (ROCK AND WOODCHIP) �Po INLET PROTECTION CATCH BASIN INSERT P MACHINE SLICED SILT FENCE — NO SCALE r� PETRA EN.Rcu EOICUTAAroSLOFE DINE -ION. N— ALL DE EQUAL TO ONSIFFPER AN 31 aEQUIRE SLOFE TRACKING. SLGFFS WITH A G n'7 JS REQUIRE SLOPETPACNIN METHOD I5 EROSION O3MROL1&SNKEf00. STANDARD DETAILS GTOe SLOPETRAOONG COTTAGE GROVE, MINNESOTA ERO-13 SLOPE TRACKING NOCCALE HAUL BE NNIiD SMF[IMELT TD BroENNNRE MEMBERS COMINU PAWWS ND RIP AND BOROM. MLTER FABRIC. FASTENEDTO MNCH POST USIN M1-]W COMMON NAilS •%4 OR MENT GEOTEKOIE C AG PER MNDOTT REQD.� B FNO38. (MPCMINE SDCED(. FLARA )REF BOTfOMO. OFFAERIC WBO% UNDER —K y, -_ J 8-10' FABRIC FlAP-BIpeY PREVENr UNDER —MI �1ur- 1' WIDE DEEP X DOE: CONTPAC iE SHALL CONSTRUCT SILT BOX TO FTT PAOUN MTHE INLETST F—IWITH6"MINIMUM QFARANQ TOEWES VESTRUCNRESILTBO% TO BE PIACED ON PN EVEN 9JRFACE 6' )RAW ((�\� tkf FROTECIING ��®���8 IN ON FOR DEENrvE GSTInG x COTTAGE GROVE, MINNESOTA Bt0-10 Ano rvorETRENCH OR eEww7 �L ossuAP ENNDeIUNND STnxE OVERWP AT SS' INTERVALS. M NPLE DENSITY SHALL BE A TAN—DUUA.I IN 11 GAUGE llMEYANDTAL STAPLFSPER MINIMUM OF eSQUPRE' DrD BY TH I RECIEITVPAT AS ANCHOR TREN01 1'ttl3' 4.—KFlLL WNHINANPPL �Il ANROON— IL 11 S. NNIKET LENGTH SHALL NOT EXCEED 100' E r WITH OUT AN ANCHOR TRDJCH r Cottage 11OONNDCOFna11- GIDve _A_N.N _ COTTAGE GROVE, MINNESOTA ER03 moINLET PROTECTION SILT BOX FOR BEEHIVE CASTING EROSION CONTROL BLANKET INSTALLATION w SCALE N 0 SCALE CARDINAL HOMEBUILDERS CITY OF C COTTAGE GROVE MINNESOTA CARDINAL RESERVE COTTAGE GROVE, MINNESOTA PRELIMINARY PLAT 01272021 L A N D F O R M Ran 5b RAW /\ STANDARD DETAILS 10"""�" f - wC swlTatrs ¢smotF I� ^"�'JI \ilf� corLxEcrlox o COTTAGE GROVE, MINNESOTA � WAEnERgre"T. EGGENUUG SIDE , / ,.D. OF MANHOLE Ra1./BO SLT I/RGALmVAN RT O AGtE' Pr 3Hro NAN OIWE FRNOAMNE IINNFN T9 NKoiE REQUIRED LY DECONE RG sPAo=D PLANVIEW TOP ql/ x COVER REMOVED oov+ AND COVER OR EQUAL WITH 2 CONCEPLED PTO( ROBED MARHOLLSTEPSIB ONCE AWES MA WATERTIGHT MNNIKKE Cottage AreanBSTANDnrDrnmry Ern Grove swnx'ARr SEWER MANnoIE COTTAGE GROVE, MINNESOTA SPN-S TUST 2FTOE" AHEINyETHESSICOPED DWXETEA OF CONE IS FAZING NAMBN DOWNST PLAN MMLHOLE SIE➢S IS ON CENTER 1Y-M" BETERMLNED EASE ON PIPE — PIPE SWAL BE CUT TO BE 2" INSIDE m MANHOLE ATTHE WPES MID POINT _SEESPECBFlCATISIN. NT�L ALL DOG HWSES SHALL BE GROUTED - ON INSIDE AND QIT3ICE SECTION Cottag¢ SrtADA DETAILS — Grove COTTAGE GROVE, MINNESOTA sAN WMPACIED BAIXFlLL • ♦ ^ ♦ GDOT SPDORROW a' ' .2.1 Moo. 6 MIN. DIA+21'M.N. ' D DING DW3 WIDE NP » H UKCOM ACIEDDMATERIAL.. PNC PIPE FOUNDATION & BEDDING IN GOOD SOLI$ STAINDARD DETAILS Cottage EwBmoA m U Grove MERLDO FDa Fvc MPEAREna A',.a me. pee,mv»Ann.., COTTAGE GROVE, MINNESOTA BED-1 ^�=�p•R '°s"'AP'� WATERTIGHT CASTING FOR PIPE FOUNDATION & BEDDING PVC SANITARY SERVICE SADDLE CONNECTION A SANITARY SEWER MANHOLE SANITARY SEWER MANHOLE METHOD FOR PVC PIPE TRENCH NOTE UTILIZED ON LOT 12, BLOCK 1 AND LOT 1, BLOCK 2 ONIFF NO CC ALE NO SCALE 0 NO SCALE 0 NO SCALE COttag¢ STANDARD DrGrove SERWC RN nrvN. M°n.M""P"M COTTAGE GROVE, MINNESOTA SFR-9 0) �F3R11FORWRB3TOPANDBOXTIATFAILWOHW NIN ORMN a'EICIENDCURBs.OPO21 B ONDyW WHENSIDEAAIXNRiEENT. IL " DRANwc -ATSEWEERK"SE0.Vrt OPPR J TEPNDOOVFR .ATAAwDX- CE 3•PVCSOlEOURE90— EQUAL TO IMIDOT 31-2M (MOO.)TIROWXLY CQNPM Cottag¢ L/IND DRDLLYMNE Grove EMDENANDWAIWDU RWavnEDPROPEWr WATER SE CECONNTLTIONS _ s COTTAGE GROVE, MINNESOTA SER-1 ADxLSTmExr oTr oEF TOP WNGS AS PCflF® PORTION OF REE Tt 9• D TEE DETAILIN 9'XS' MANHOLE IRANSIIION MANHOLE STEPS IS' ON CENTER. (SEE ABWE) STAIN LESS STEEL PIPE BPAOSET° (MIN.2 REQUIRED, S SPAZING) TOITTAL IDOWNTSTP.FMI.ON BEND o 3 ANUNA AwPERTICi1TSFALNT SEE SPECIFICARON. -INN ANDBENO-1 ARETO BE ANDUNOaDE BE 1/2EDIANETER BF FIRE AND DBENOES ALLOW XOUSERSXAIIBEGRQUIED E SPEaFiCATfONs SECTION ON INSIDE AND QITs1BE Cottage STANDARD DEETAILS Grove SANTTARrMEwR ROPIMLET en.+v.nw'Nn '`'*•me.." COTTAGE GROVE, MINNESOTA sNN4 D PACTEDBACRALL D MNCO R"3A9..B] LOT SM ^^ » = FDDING DW3 WIDE. N TnAx B^ ow+zm• MIx. =`M-plz n�I.inAD— INSTALLATION TYPEI DEP,=ORBITSIDE DSMEBSk of PIPE _ 0 I9 aIA 'N< li i M—DING DW3—EB1 NOT —THAN 3" DDDTA+N"MW. PUS/ UNCOMPACIED MATEPIPL INSTALLATION TYPE 2 =OUTSBEE DBAREBEIt of PIPE OW39 BUT BEDDINGDW3 WIDE. N07 LESS IHAN 3' Uu+19 mlx. LaosCLV M—I UNOx9PACBEO NATNE TRENCH MATERVL INSTALLATION TYPE 3 OU= OUTSIDE DIAMETER OF PIPE Cottage STANDARD DETARS �GCOV¢ PIPE FOUNDAWON a SEBOING SNR METHODS FORK RDIP COTTAGE GROVE, MINNESOTA BEp2 ^ ..... "` RESIDEN I UAL I INDIVIDUALLY UWNED PROPER I '°'"'""° °°°°°:-°"" PIP FULINUA I IUIN&NtUUINU SERVICE RISER SEWER & WATER SERVICE CONNECTIONS SANITARY SEWER DROP INLET MANHOLE METHOD FOR RCP & DIP 0 NO SCALE 0 NO SCALE 0 NO SCALE 0 NO SCALE CARDINAL HOMEBUILDERS CITY OF CWk - COTTAGE GROVE MINNESOTA CARDINAL RESERVE COTTAGE GROVE, MINNESOTA L A N D F O R M Fmm SbB NNW IND,ap , MN 56A01 Ian2tlioZm.Onet Axaroa Glv TIE V.ST S�T¢B0� FASTENERS PBt JOINT. OUTSIDE OF PIPE STORM SEWE0.5MALL BE REP. ANCHOR B0T15IDEi RAEH BXRD BPN BOL B ISOMETRIC �-0nE SEE Qtt PUTS NO S Q-12 AND STP13 FOR EBRAP PLACEMENT. Cottage wwTEOEN�o'=AN Grove TRPSH GVMO O COTTAGE GROVE, MINNESOTA SRO-11 M VNJEG�� FACE OFOW�r II IIII IIIIIIIII II FLAN GRATE TOOBEE V I— GUFIFR sLOE OF uim BASIN, x BAa RINGS AS A£QFl D� OP OFOIRB 2PREGSf © 5' OOGHOU565HALLBE 4' C GROUIEDON BOTH THE 3"GROUP'^ NSIOE AND O—DE R. SECTION Cottage cRttAxaAaARn wlmETsnP n rove �,. COTTAGE GROVE, MINNESOTA FLARED END SECTION AND TRASH GUARD aa CATCHBASIN WITH SUMP ANOCCALE NO SCALE Hs s 2]'T033" 20T025 Q3 6 4 (oxEa®Cvn ISAFFRox;eao te5.) NL �RIPRAP� PAD RIPRAP SECTION AA FA -CT UNEOER ECEOON 1 PR P SECRON BB \FABRICTY //,, STANDAND D AAILS �Gro�vege wPRAP AT FLAREO FN sernoN x"w.nM°M°`"wN COTTAGE GROVE, MINNESOTA STO-12 FPEUSt INVERT SHOULD BE 1/2 DNMETEROF PREAND BENCAE540PED PLAN -INVERT GSTIxG As sPrGFIEO 9.25' ` TOP VIEW NOtETE SroOLGMtt FPAMBAE FRPME OR FQJ—NT 3uS„ JUSMENT RING50.55PEQFlE. TOP OF BARREL SECTION BELOW TOP SLAB eFAosA OF EAAwNE10Q 1 ESFaEDwrtx 2 uu. 27. PNHOLESTEPS 16^ ON OEbl L RQ' PLFE SHALLa —TOB 'ff1SIO NWNHOL£ATTHE MRE MID PORK E SECNON STANDARD DETAILS Glote OFF $TREETG OIBASIN N'fiH CONCRFJF ST00 GRATE FRM4 w*rs.ne. COTTAGE GROVE, MINNESOTA 5TL}9 211 SLAB OPENING FOR GSRNE SPECIFlED MENEB NFROMBAIXOFCURBTQ HE-9"IN FROM RACK OF OJPB l a ow nn uE..D Lx . EB P AN T �vsnxG AND AmusTMEnr Miow TosLAa TOHAVTPEOSEI BFADS OFERAN EBOREQUAL 6'DJA. SIRUCNME SECTION STANDARD EvrtTH� Groff¢ rAT sumo COTTAGE GROVE, MINNESOTA CATCHBASIN MANHOLE WITH SUMP 3-1 SHOD: —1 G_ OF..:7-T MAN GGITTEE TO BE I �E BALOW —NGLONNO ADNSIMENT OF-1-BAAN. GS AS SKUFlFD� TOP OF OJRB ECAE BE 3"GROLR INVERT XSIlEE AND xO_ DEE 16" SECTION Cottage STANDARD DETAILS Grove urcHBAvx COTTAGE GROVE, MINNESOTA STO ] GROUP BOTTOM OF MANP0 E TO U2 OroETEROAINPI�AND SLOPE GRIXR FLOW PoN �� oFo3NE rs UGnG oorvnsm PLAN AIDLJsrnteTT wnGS AS MANHOLE STEPS 16 ON CENTER DETERMMED BY PIPE 512E VARIES E A MNODE m ANHOLTTME PIPE MID PG a � �I� IN51O�uID OUTSIDE OF MANHOIE. =ON Cotta ¢ STANDARD DETAI15 COTTAGE GROVE, MINNESOTA STO-1 s� STORM SEWER MANHOLE -—LAB OPERUNG FOR ® I 0=IA "F'PFmM_OFCURBTORB ® ,,oaNH_3:Il B I� 6' OTA MN-3" E.RBO BAO(OFOIRB R o, MM:3,.I_ o �DF.. �EFPLAN EA.=PDABJ—D RNGBAs TOO E TO OR SFALfD WITH2 B EQUAL VAR S MMlHOIE STEPS 16' ON CENTER, o INsroEAno oLJmoe OCMA .LE. 111N MANH1 Grope CnRAs[ OLE °maen0w�w mR COTTAGE GROVE, MINNFSOTP STO-5 ..... ... OFF S I REE I CA I CHBASIN WI I H CONCRE It RIPRAP AT FLARED END SECTION STOOL GRATE FRAME CATCHBASIN CATCHBASIN MANHOLE 0 NO SCALE — NO SCALE mow NO SCALE — NO SCALE CARDINAL HOMEBUILDERS CITY OF C COTTAGE GROVE MINNESOTA CARDINAL RESERVE COTTAGE GROVE, MINNESOTA L A N D F O R M Fmm b hM A FULLBASEMENT (FB) ,a pry oaEc,w ar E�L� �sww,uww conow,Eo ee noveEweoeei- — \ FULL BASEMENT WALKOUT (FBWO) No SCALE so BNI- SAD ar ?s s A FULL BASEMENT LOOKOUT (FBLO) �� AEB Df NB PER EF B• .SLOPE w"�1/z"R =� l MNooTaaleMoo FA<E Of NB 6• Is7ANCE ro4 ARIANF 1/2'R� D 3R B' 3 RUDPE 3H"� 12"R PER R 14 4NWTB6IR MDD 1/2'R fACEOFNB �..1 SLOPE 1a'R 3M f PER i � D-0RUR l3 I 1a'n noia Nne la'R �I NRMOU17 MPBIE Di28 M00 I. I,HEA N. s•—P PER PUTS UP Bwxe<ENBAxo Cottage ITA URER�fiEo DR Grove PNro lbTiAGE GROVE, MINNESOTA SIR 10 TDDLED CONTwunDN IOINT 6 • '— EXISTING CONCRETE . NOTE'. HAVE BROOMEDSFINIRISH El CONCREEE 9 E—EL—E oGCttage ��- 3D- rove COTTAGE GROVE, MINNESOTA STR 3] CURB AND GUTTER No scALE A CONCRETE HYDRANT PAD NOSCALE CONSIDEPEDINQOENTALTOTIEPRICE OFNPB. LOGTIONS SHALL DE TNAi SECRON OFN B MUST NEBMOVED ANOR ED.BE NCCEPIEO NND LFANOl1i'ILOLIN STAEP WW° IN THE FACE CF CURB IN 1.PENDINWiNTHE PERPEND N STOP LBOUTIO — B618\�— oAaP uzD-L 1a k} Is a::V yr a° Co tta e sTANDARO[ ILs GCOve WARERANDSEWERSERVICE LOGTION STAMP 1 CURB COTTAGE GROVE, MINNESO'TA yTR-11 moWATER AND SEWER SERVICE LOCATION STAMP IN CURB w N 0 SCALE srvailinEri—�E P. sErnoN Fi.CU.ER DE 1saETr 1.6• fi" I.so ve V�� >D� 3• TYPE SP95 WEARING CWRSE FaXNB(3,�( WFnaaoq ERTSNE (0.5 DINRECTED BY P1lD=ONEER) GALE "M"LL BRUMINOUS TRARN WIEIN.MmtS—E NOHIDERz WIDE 1.a 1.P !BW a"tlnff IARE arz S[1W9a CRUSHED UMI—NE EXCAVATION AND utaj GREGATE BACRFILL CONCRETE SIDEWALK STANDARD DETA �GCO�e TYMC4L BINMINOUSTRAILPND V� CONCRETE SIDE\YAIH3CTIONS N�^"p°inrow COTTAGE GROVE, MINNESOTA sTR-9 TYPICAL BITIMINOUS TRAIL AND CONCRETE SIDEWALK SECTIONS NO SCALE CARDINAL HOMEBUILDERS CITY OF C4W IL COTTAG ROVE MINNESOTA CARDINAL RESERVE COTTAGE GROVE, MINNESOTA L A N D F O R M Ran5HBIBM W 11 aMN 5640'I Ian2tlioZm.O p , net E CAB MANDHOLE RE EAl1A5I A"o9' L CONNEC MLUG 9-#� LEVEIIH— F)BNF& BINS (SA) Gn.N_ READT MI%D MIN _ 3"A&1VE BRED, 33-PSI o7 GROUND IE4II E R& A RECOMMENCED CONWR ears A = m GR OUNIDROD o f IE STANDARD DETAILS �Grovege coxcRETE aAs wRTVPE Aa .v"� ucHnxc srANOARDs COTTAGE GROVE, MINNESOTA It IL OR ExISTAIG GRADE a � 'MINIMUM \1 sT110PoAM �s� `RIGID MttUTATION N.— MINIMUM—— PIPE COVER0 P@E A —N OF IN9AATING DDARD N Y u• 3' 9' B' Cottage SwsNI DDErnrtc Grove w*•mo- •^°""•'•�WNM COTTAGE GROVE, MINNESOTA yypT-g DROP UD cnnDOE eoxml�••s �ro TOP PROWDE u" oFaDAGrnENr. UM COVERNEDUIRED OVERTOP OF WATERMA[N. ElTEN510N VMMNDOTTEEERC 314BwTE COVER WTIH MIw MIIM 4 MI PRovIDE ronournvnT Tx1ceNEss -ME.L STROP (TwJ MQRMUM DUTIERRT VPLVE t/I6'%3C4�WfOEv (12 ORLARCBt) BOnOM END VRY DO MEWlUGS (TYP,) BIDIX` COtta a STANDARD DETARS Grove BurtERttrvuVEarvD eox INsrA11ATmN COTTAGE GROVE, MINNESOTA Wpiq HYDRANT iL1G AE SPwLFlw. DOT TOM MANGEOF HYDRANT TO BE ABOVE MINN nun OP A- 4 2--- — — — — DACNNLLTO BE TAMPED AGGNIG PER MNSO WPEC3199.2.H. EG4LDGs wL E HIM DDNCRETETH1815T BLOIX B' CONCRETE BLOCK PROVIDE CONOUCTTY SIR4P TNYI, 3/4" DRAM.. WLVAN® WIDE). MINIMUM lll6"X3/A' `/�1,�== STANDARDDDET�AIlS �_ Vfi Goo ge °'•^KKR,.w•Ra�w COTTAGE GROVE, MINNESOTA WqT-3 owG CONCRETE BASE FOR TYPE A-1 ��.,,P_P»'G ,a .,.° .11 ��W°T� A LIGHTING STANDARDS A INSULATION DETAIL BUTTERFLY VALVE AND BOX INSTALLATION A HYDRANT DETAIL NO SCALE NO SCALE 0 NO SCALE NO SCALE JiKHIGI EA @A APEnPE -IR SUPPORT BANS LLOWED wR SD2UCtURE516G 114AId �s0 ta�ISF AND BE &OETo REN_ oNE sErnon HM aAGd•55 TD STEPS eY REMOVING NUR s1oE wwDws To ENGINEERroRENIEW PPRIOR TO FADRIGTIDN.R TIO s RvowIDHHEEIwT 9 R5. HOLE STEPS, NEETNH RiS813 OR EQLWI. 16° ON CENTFE ALUMINUM STEPS APPROVED. OPE(D7.) �9EB•DA R 12 OR24S SCH DULE wR ER ---- r SPEUFlC STRUCNRE MSV =xrry � ELEv. xra.x 1. xoLE PoR ra° Dw. R(P SMMMER OPEN E MD -DE P Y F BE a aD (nxooT314BH MaoD) .) STANDARD DETAILS G..%- 6TANDAR.B.N sr -PE aw.m••Mam•P^w •we COTTAGE GROVE, MINNESOTA GTD1fi � OVERNIMU COVER TOPP OFF—R MNN. THE DENIER OF ESOEUINED TAP SO PORA'DON IN INSTALLS"CORPORATION BD.IO, I5INTMEWATEN CU IATTEBA EE t'COPPEI PIGTAILT029" . ABOVE GRADE. STPPP (T'PJ. MQIPIUM PEAR RMNEWTSPEn493.n COPPER%— �T COVETHNESNB. MINIMUM E 2 Tttrvio� �p B wnc a<oIX.. P n P, RTDNGSWITHMIN.OF W0,,3/4" �NRD STOP Gate DIPaD� urvE �C Grove COTTAGE GROVE, MINNESOTA WAT-8 gay DROPLID GRADE T- ADNsr roP To I/z'• ET TO � vE�D°IOBOxEomEAEE�sErro use e TDP O ER TOlRED P MEN. EXBlSICN p gD RG45x�IN5�"TALIED Ia^ NEIWEENVE E��EINVALVE AND BOTTOM COAASEWFl +LS�AGGPM 44TE ,TP 2.H. IM M4MIL THIIXNPoE oP ODNJD LENS MEGALUCS OroJ MINIMUM �:.. t/16"%34�.7W1pEMIN1E�MTM COPPIXDSIIQPOGIC STANDARD DETALS Grove- LV GATE VAANDBOX IN STALunON COTTAGE GROVE, MINNESOTA WAT-3 LIGHTING DETAIL RAVINE SINGLE LED FIXTURE STANDARD SKIMMER STRUCTURE 14 FOOT TALL POLE DIP SERVICE OR DEAD END LINE GATE VALVE AND BOX INSTALLATION No SCALE No SCALE No SCALE No SCALE CARDINAL HOMEBUILDERS CITY OF ' COTTAGE GROVE MINNESOTA CARDINAL RESERVE COTTAGE GROVE, MINNESOTA PRELIMINARY PLAT 01272021 L A N D F O R M edN Bibb MNW 9 sown Penn AvA TO C12F52EA070 r rr y� y v y� w PC TV'Q Via= Y � 2 tdi, X x'<> ,�Wa _ �Vy IT t v I IT A< :C yr,s ue T11 IT 4\ ��. IT 1, CARDINAL HOMEBUILDERS CITY OF C COTT GE GROVE MINNESOTA CARDINAL RESERVE COTTAGE GROVE, MINNESOTA N �o L A N D F O R M 1111-ffill— T. ® AMEI.MN 66Q0'I lanZtlioZm. g FILE NA PROJECT NO c—ooll O NORTH TREE PRESERVATION Know what's Below. Call before you dig. 0 100 200 CARDINAL HOMEBUILDERS CITY OF COTTAGE GROVE MINNESOTA CARDINAL RESERVE COTTAGE GROVE, MINNESOTA YK—IN11NHKY —1 01262021 L A N D F O R M F—SbWFII apoll, MN 6610'I IanZtlioZm.�net CARDINAL HOMEBUILDERS CITY OF COTTAGE GROVE MINNESOTA CARDINAL RESERVE COTTAGE GROVE, MINNESOTA YK—IN11NHKY —1 01262021 L A N D F O R M F—SbWFII apoll, MN 6610'I IanZtlioZm.�net a���� �®�n,�a �an��..... I A-�a���aa�a�a���a,e���o���tie�m �m m,aa,an��a l,aa-- v.— I�a,�n,�s�la9,�u.m, n�^oa.��a,��noaa,,,o, aM.e �a 1 11 w, 11 rpas� T - N 1 �. DECIDUOUS TREES BOTANICAL NAME COMMON NAME MATURE SIZE PLANTING SIZE ROOTCOND. 34 Acer rubrum Red Maple 40�H x30 W 26" Cal. B&B 34 Ace saccharum Sugar Maple 40'IT x30'W 26"Cal. B&B 36 Acerx 6eemanii'Sienna' Sienna Glen Maple 60'IT x 40'W 25"Cal. B&B 32 Anne lanchier laevis'JFS-Arb'TM Spring Flurry Allegheny Serviceberry 30'Hx20'W 25"Cal. B&B 17 Betula nigra River Birch Multi Trunk 60'Hx50'W 25"Cal. B&B 20 Catalpa species a Northern Catalpa 40'H x20'W 26"Cal. B&B 21 Gleditsia triacanthos inermis'Suncole' Sunburst Honey Locust 40'IT x36'W 26"Cal. B&B 13 Quercus bicolor Swamp White Oak 55 IT x66'W 25"Cal. B&B 10 onerous eltpDoiIans Northern Pin Oak 60'Hx50'W 25"Cal. B&B 5 Clue us macrocarpa Burr Oak 70'Hx70'W 25"Cal. B&B 26 Quercus rubs Red Oak 60'Hx40'W 26"Cal. B&B 26 Tia americana'Redmond' Redmond American Linden 60'IT x30'W 26"Cal. B&B 7 Tilia americana'Sentry American Linden 60'Hx36'W 25"Cal. B&B EVERGREEN TREES BOTANICAL NAME COMMON NAME MATURE SIZE PLANTING SIZE ROOTCOND. 32 Abiesconcolor White Fir 30 Hx20W 6 Ft. B&B 22 Abies traseri Fraser Fir 30'IT x20'W 6'Ft. B&B 71 Juniperus virginiana Eastern Red Cedar 15 IT x 10'W 6'Ht. B&B 61 Piceaglauca'Densata' Black Hills Spruce 45'IT x20'W 6'IT B&B 15 Pinus resinosa Red Pine 40'IT x26'W 6 HI. B&B 21 Pinus strobus Eastern White Pine 65 Hx30'W 6 Ft. B&B E6 Thuja occidentalis American Arborvitae 40'IT x16'W 6 Ft. B&B 1 QO 0 NORTH Knowwhat's Below Call before you dig. 0 100 200 CARDINAL HOMEBUILDERS CITY OF COTTAGE GROVE MINNESOTA CARDINAL RESERVE COTTAGE GROVE, MINNESOTA O�S L A N D F O R N F—Slbb ll apoo� a".I lenemZm t A3Ru 23 —tik,em PAd PAPAW 25 CAI 1. A3W 20 — -pl. W IT 30 W 25 CAI BE 21 W I1,1 PAPAWBxAOW 25 CAI NB B I BE BINI 15 JrsAbrN a�,gk�,,MlCI1,B — 2 OFTsow zsCAl BE CASP 1s CAW, T a3 C-A. p m IT 20 W 25 .11. BE �0 A I L FSu to alkdk.t..I-Ch.-,. On- S,—n y n mnx35W 25 CAI BE QUBI a Ouerausbiwor s rm ite Oak 55 Nx55W 25 WI. BE Or, 11 Querausellipsoitlatis C-A. R,Wk OF IT 10Vu 11 IAI. BE U Or. 2 Oue,ouamavovmpa Bum Oak 70 Nx]0 W 25 CAI BE 1] Wtl Wk 50IT 25 WI. BE QURu Querausmba z40 W r2R n r -,5 Re5xx,5Axx— L— ,N 25 CAI BE rS 4 as-- , me,���N1Ne, AOBx35W 25 W BE { jj RBR NN EE AB3O 12 A- CA B, 30 IT 20 W N m BE e ABER 12 A— 1,8, 30 IT 20 W N m BE r O auvl m A R a em Id Naa, 15IT 10 W s m. BE ® Pore 13 R N De,- BIulw Mn. as IT 20 W s m. BE *' a • PRE s R— Wa Rye M IT zsw s m BE Per 15 R11N1111 gem s BE w�te aye rHOC m ITaemae A— 110-e M ITx15 WH BE CARDINAL HOMEBUILDERS CITY OF COTTAGE GROVE MINNESOTA CARDINAL RESERVE COTTAGE GROVE, MINNESOTA L A N D F O R M F-5b. FI„�enue TO 6-52PA070 ® NAME MN 66Q0'I Ian2tlioZm.Onet FILE PROJECT NO c—ooll, O NORTH LANDSCAPE PLAN - EAST Knowwhat's Below. Call before you dig, 0 100 200 QE3I000u3TREE3 Q BOTANI3ATNA QNNAME MTURE3ITE PTANTIN33ITE ROQT3ONQ CARDINAL HOMEBUILDERS AORu 11 A®rraIn. p W IT 10 W 25 Cal B&B =EP a W, � A0W J ACRF 15 1--- A®r Ca— Qa pI W IT 30 W 25 Cal W IT W 25 Cal B&B B&B � A— 12 A-I—�a,laa- 3E6A,6 TN � ITY OF BHJI cnsP 10 p p sa � a�BW W,O� T�a�k Nonbar0 p 8.50 W 25 Wr inn;: zow zs wl. B&B B&B Z �l GTCU E as C-ft oadboai0arm: y 0s m IT 35 W 25 U B&B COTTAGE GROVE CUBI s LLervsbimlor rip be Wk 55 IT 55 W 25 U B&B MINNESOTA QUIT I QU- 3 LLerors dp. dtl,l Norlbam Rn Oak k 60 IT 50W 2 5 U 70 IT 70 W 25 U B&B B&B CARDINAL QUR2 3 �,arourab� Id Cak 50 H. W W 25 U. B&B RESERVE Tlw s L••%`f....Y Tl.oar...a aaa-oa aaa.oa nma., waao OF IT, 10W 2 5 U B&B COTTAGE GROVE, MINNESOTA TITS 3 Tu-1— C.-Cry A-1-1 Inman 00 IT 35 W 25 wT B&B QlV ABUO 20 Aliasa0-101 WM1be Fr 30 IT 20 W 6 re. B&B r,..7e� o.aioi..aroa. .a. ABER 10 Al-ft , Fa 30 IT 20 W 6 re. B&B Q JUVI 2 p g a EA—Wtl Catlin 15 IT, 10W Ere. B&B PIPE 38 Pi g a0eru-ara Bad; uls F.. uIT, 20W Ere. B&B ) PIPE 6 Pinosras1— Id Pi- . IT, 25W Ere. B&B �y1 > jaw•/ PINT 6 H� Pinosdr0ms EA—N65a Pi- 65 IT, 30W Ere. B&B O THOC 42 otlarrtdas Acre—Nbmxha . IT, 15 W 6 re. B&B i�vlmllnyTmnyles,lo permae �rAme asepeanrvmouw-an samplemapmpoma mnanimanapnrma L A N D F O R M F—SbWFII APoIIW MN 6"EFTIan2tlioZm.One1 ®FILE CAPE O NORTH LANDSCAPE PLAN - WEST Know hats Below. Call before you dig, 0 100 200 Jr — T"'I .11H-El I—E—LE-11-PRINC-111—E J "ETE"E `—T �IITEELTIIIT�,1,2��El�l�ITI"I,T,EIENTI. , NIT J CENTE I.T.L —E INOR—Plo— IN11TI III lul. 1-1- .NTINUNTIL11-1.1-11I.T.- 0 TREE PROTECTION NO NFALE ILINNI 1E-.1L INOTE I= N�,LT—` "T BE PLCC` FEE T-- PIT L= 1,1,1L1.1 ILINT I C '11. —E PLINT N� 12 .N N,.1. ORT' 801p1E1pE= LRe1 —= ER BCCCL LL " PIT PLCNL ` 8o L 18 PIT oRo.H L� I LLE1 1. L001RN = FEE PL.11 E.11NN IUB—CE 1C. RC B010. 1. 11— 01 1 HOLE PNORTO P-1- =o �.��L80NTC�lol�.DIT.EIEIDP�OE18loB'LE MITCOUT 1EIT-1. 10L .111 SHRUB BED NO SCALE PLININNDEPPH .u—NO.NIN NU — DECIDUOUS TREE PLANTING NO NFALE CARDINAL HOMEBUILDERS =EP�ENUE1NORTH e5 2� TEL �11 "1 .11 CITY OF COTTAGE G1011 MINNESOTA CARDINAL RESERVE COTTAGE GROVE, UINNESOTA mmmmmvmr.mzmmxqmm-�. ' '2' ' P �LENE -Z"11LNENE0P`CL0`L�'E`1 ..rII1 .1DE—P-1 T�E8HftNBEEOLI�l���"THOI�Bo�.�H�E�OT ONRIII I BELO" POLLINR PROOTIOPRI—TIPPI—TIT—BE .VENO BUI ,PPNCP,�� _Ep��01801L ID-TPLINT18PRECEDT—INTIN �=.`EF:No`DR`H1NC"00D.— ��.oTpPoL`BL".ET=' .110-0-1-101ROOTOCT IND OLL B111 BUNLIP 1N I INC. TOP 01 100-L =F0.RN7' —E—TIONVINE81YEEPLINO 2 .2 .2-00-11—TITI—E �11o�'l BPO�TNO.�. 81 CE8 01 IT OLE N To �HoNULC`BE PIT PIT E—N--CE �\ ON DEPTH 18 'ND ION8 N THE NUw— TRuo 8TE. NI NC Ll. T-8 I IT I PR 8EVE — I lo-O ON' �'D C`8pLI LLN T"LO�DTEo.l��,.EIE8�8RO�lT�E8TIll. — L-PTICOEDIND Te NT PR COBS D 1 0 INT 8CEONTHROU101THE—PNINTIEPE10D INOOTNITO ==8PL1.=_,ow PRELIMINARY PLAT =`Eo R`01%oa 0126/2021 CONIFEROUS TREE PLANTING 0 NO NFPLE L A N D F 0 R M F—Sb-II - S-th FILL A- TO 612-2-70 a, t. FILE NIME 1011-1111, PROJECT NO c—ooll O 0 NORTH LANDSCAPE DETAILS Know what's Below. U.1 Call before you dig, o 100 200 UBOLTON l�& MENK Real People. Real Solutions. MEMORANDUM Date: 02/18/2021 To: Ryan Burfeind, PE From: Mike Boex, PE Subject: Cardinal Reserve Plan Review City of Cottage Grove, MN Project No.: ON1.123732 2035 County Road D East Maplewood, MN 55109-5314 This memo summarizes the review of both preliminary grading documents and street & utility documents submitted by Landform, dated 01/27/21. Sheet CO. I: 1. Identify the horizontal and vertical datums used on the project. Ph: (651) 704-9970 Fax: (651) 704-9971 Bolton-Menk.com 2. Add a note stating that the City of Cottage Grove's Standard Specifications for Street and Utility Construction shall govern for all improvements on the project. Sheet CO.2: 3. In order to preserve a potential future street connection to Woodbury, provide a 60' right-of- way immediately north of the proposed cul-de-sac to north plat line (Lots 12 and 13 Block 4). 4. Outlots: a. Please split Outlot A into two new outlots, somewhere near Lot 5 Block 6. The intent is for the City to own an outlot for ponding purposes, and the HOA to own the remaining greenspace outlot. This new outlot over the ponding areas shall be covered with a blanket drainage and utility easement. b. It is understood that Outlots B and C shall be owned and maintained by the HOA. c. A proposed watermain crosses the southeast corner of Outlot B; drainage and utility easement should be provided over the pipe since the outlot will be HOA owned. d. Outlot D should be dedicated as right-of-way. 5. The existing highway easement along Block 4 should be vacated and noted accordingly. According to the county parcel data the highway easement extends further west beyond the section line; please investigate to ensure it is depicted correctly. Sheet C1.1: 6. The existing overhead utilities along Military Road immediately adjacent to the plat should be relocated underground consistent with other development along Military Road. 7. Note 15: Add a statement that all piping shall be removed within proposed right-of-way or city - owned outlots. H:\C0TT\0N1123732\1_Corres\C_To Others\Landform\2021-02-18\123732 Plan Review 2021-02-18.docx Bolton & Menk is an equal opportunity employer. Cardinal Reserve Plan Review Page: 2 8. Please provide well sealing records to the City. 9. Please remove the existing trees within Outlot D as part of the requested right-of-way dedication. Sheet C2.1: 10. Sidewalk should be provided on east side of Jarvis Avenue. chAAt C:Z 1 11. Please ensure pond benching matches City Detail STO-15. Based on the contours it does not appear as though a maintenance bench has been provided. 12. The access route around the proposed stormwater pond should be hatched on a final grading plan. A hatched maintenance bench shall be provided around the entire pond in a continuous fashion allowing access to all inlets and outlets for maintenance vehicles. 13. The grades between Lots 9, Block 5 and Lot 1 Block 6 should be modified to a 1:6 maximum for a pond access route. 14. The proposed high-water level the stormwater ponds need to be completely contained within an outlot. a. The rear lot corner between Lots 7 and 8 Block 5 reads 939.0 but appears on top of the 940.0 contour. Ensure the HWL is in fact contained within the outlot. 15. EOFs should be clearly labeled on the plan and evaluated for required freeboard. a. For backyard and side -yard conveyance and temporary ponding areas, there must be at least 1 foot between the overland overflow elevation and the low adjacent grade elevation of the adjacent structure. The 952.5 between Lots 9 Block 5 and Lot 1 Block 6 does not meet this requirement to the garage (953.0). b. Pond EOF's should be labeled. A depressed EOF with a TRM on the downslope of the embankment should be provided. This EOF should be directed to the existing catch basin to the east. 16. Install inlet protection at the intersection of 62nd Street South and Jasmine Avenue South. 17. Lots 1-8 Block 2: a. Swales are provided in the middle of the back yards for drainage. Evaluate locating drainage swales a minimum 20' behind the building pad. b. Some spot elevations don't support the proposed drainage patterns. For example, between Lots 5 and 6 Block 2 the 56.9 is higher than 56.6 and drainage would continue across the adjacent lot. i. Please adjust spot elevations to achieve the depicted drainage patterns function. If drainage must cross an adjacent yard, then additional drainage and utility easement would need to be provided. ii. Lots 4 & 5 are similar to the above comment, review spot elevations and desired drainage. 18. Grading within greenspace should be 2% minimum for drainage. Please evaluate all areas, below are a few examples: Bolton & Menk is an equal opportunity employer. Cardinal Reserve Plan Review Page: 3 a. 943 to 942 behind Lot 5 Block 6 b. Side yard swale between Lots 2 and 3, Block 1 19. It is preferred that the defined swale in the rear portion of Lot 1, Bock 3 be shifted further away from the building pad area. 20. Drainage from an adjacent lot shall be encompassed by a drainage and utility easement. This requirement should be evaluated throughout the project. For example: a. The rear swale across Lots 1-6, Block 5. In addition, consider moving the swale closer to the proposed outlot. b. The swale behind Lots 4-9 Block 6 is not in easement per Sheet C0.02. There appears to be extra linework depicted on Sheet C3.1 but the intent is unclear. c. The rear swale across Lots 3-5, Block 1. There appears to be additional linework that is not depicted on Sheet C0.02. Sheet C3.2: 21. Clarify where drainage goes behind Lot 1-10, Block 4. It appears that drainage ponds on the rear of every lot. Provide a swale or additional storm sewer to properly drain the area. 22. Get drainage further off Lots 13 and 14 Block 4 by establishing a 973 spot elevation further to the east between the 974 contours. 23. Drainage from an adjacent lot shall be encompassed by a drainage and utility easement. Easement is therefore needed for the rear yard swale across Lots 15-17, Block 4. 24. It appears there may be a retaining wall at the rear of the cl-de-sac. A wall in this location is not desired, please attempt to get easement from the adjacent property owner to create a slope for the right-of-way instead of a wall. 25. Grading within greenspace should be 2% minimum for drainage. Please evaluate all areas, below are a few examples: a. Between Lots 1 and 2, Block 4. b. Between Lots 2 and 3, Block 4. Please label the proposed rear lot corner between these lots and identify how drainage will be contained within an easement. 26. The emergency overflow (EOF) location and elevation for Pond 1013 (existing depression in Outlot D) is labeled on the plans. For clarity, please label the HWL of 973.36. Sheet C4.1: 27. FES-100 is close to OCS#2 (50 feet); please consider increasing the separation to avoid short circuiting. It is recommended that the pond inlet be moved two lot lines to the west to take advantage of the constructed pond shape. a. Storm pipe between Lot 9, Block 5 and Lot 1, Block 6 is approximately 15' deep. Additional easement would be needed in this location since the storm pipe cannot be centered within the available outlot and easement. Easement widths should be twice the pipe depth and centered on the pipe. Moving the pipe and pond access route two lots to the west would address this concern. The watermain could remain where is and would require 10' side yard easements (20' total width). Bolton & Menk is an equal opportunity employer. Cardinal Reserve Plan Review Page: 4 28. Final plans will require plan and profiles of utilities to understand utility cover across the length of pipe, crossings, and clearances between crossings. Plan sheets should be presented at a 50-scale or larger. 29. Valve locations will be reviewed when final plans are submitted. 30. OCS-1 and OCS-2 are not accessible as shown as they are within the NWL footprint. Grading should be modified around the structure such that the skimmer can function, see city detail STO-15. 31. Please be aware that there is a driveway to be constructed through Outlot A in Northwick Park immediately adjacent to the proposed watermain connection at the north side of the site. The contractor will need to coordinate with the property owner in Woodbury who will utilize that driveway. 32. Avoid placing storm pipe behind the curb as that location typically conflicts with streetlight bases, signs, and boulevard tree plantings. Storm manholes can be used as necessary if catch basins aren't needed for drainage. 33. Adequate pipe cover will be confirmed during final plan set review. 3' minimum cover over storm pipe should be provided within the street, and 2' minimum within green space. 34. It would be preferred to change FES 302 to an off -road catch basin instead of a flared end. It appears this may help achieve better cover. 35. Please note that MH 4 will be an inside drop manhole per detail SAN-4. 36. The proposed pipe class for sewer pipe shall conform to the following: Less than 18' depth shall be SDR-35, less than 28' depth SDR-26, and greater than 28' shall be designed by the engineer. Label pipe class on the final plans. 37. Services should not be placed within driveways whenever possible and should not enter structures. Evaluate locations of sewer manholes such as MH-19. a. On final plans, please show service information on each lot (wye station, curb box elevation, sewer elevation at upstream end of service, top of riser elevation if applicable). b. Curb boxes should be located at the right-of-way line. Where concrete walk is identified, they should be located 1' beyond the right-of-way per detail SER-1. 38. 8" DIP watermain shall be Class 52, not Class 51. 39. References to City of Medina should be removed from the plans. 40. No irrigation crossings of public right-of-way will be allowed, please revise note 16 accordingly. If an irrigation service is desired, it should be provided per City Detail SER-12. Since no crossings or public right-of-way is allowed an irrigation service would be required for each individual area to be irrigated. 41. It appears that Lot 6 Block 3 will require additional drainage and utility easement for the proposed watermain. Bolton & Menk is an equal opportunity employer. Cardinal Reserve Plan Review Page: 5 42. The City will provide new detail plates for 2021 that shall be used on all future projects. STO-15 should be added to the plan set. A detailed review of the standard details will be performed during the final plat submittal. Sheet L2.1: 43. Ensure the following restrictions are applied to the plan and please add these restrictions as notes to the landscape plan so the planting locations can be reviewed by the contractor during installation: a. Deciduous trees should be located a minimum of 5' off any utility pipe b. Coniferous trees should be located a minimum of 15' off any utility pipe c. No tree should be located within 10' of a hydrant or 15' from a streetlight d. No trees should be located within a storm pond HWL e. No trees should be located within a storm pond's 20' access route f. No coniferous trees within 20' of a proposed sidewalk/trail g. No deciduous trees within 5' of a sidewalk/trail 44. For trees within public right-of-way or public outlot, trees shall conform to the attached list of approved species. 45. One boulevard tree shall be provided per lot, and corner lots shall receive two trees, one on each side of the lot. 46. Remove private yard plantings from the plan. Depict only boulevard trees and outlot plantings, or other mass plantings required for the development. 47. Please refrain from planting within Outlot D (to be public right-of-way). 48. Note 8 states: "Spread a minimum of 4 inches of topsoil and seed all turf areas disturbed by Construction." Please identify the seed mixes proposed for the entire site and provide 6" of topsoil. r)4-k - 49. Street lighting sheets shall be submitted with a final plat submittal. The following comments should be incorporated into a plan. a. Residential lights should be approximately 200-250 feet apart located at lot lines and at street intersections. b. Streetlights should be located along the sidewalk side of the street. c. Feed point cabinet locations and source of power should be identified on the plan. d. Identify wire sizes on the plan. Wire to be placed in conduit (1.5-inch minimum NMC). 50. A signing and striping plan shall be submitted with a final plat submittal. a. Stop signs will be required at approaches to Military Avenue. b. Open space marker locations, to be provided by the City's Parks department, should also be shown on this sheet. Bolton & Menk is an equal opportunity employer. Cardinal Reserve Plan Review Page: 6 c. A Future Road Extension sign per city detail STR-31 should be placed at the end of the cul-de-sac. Stormwater: 51. HydroCAD: The HydroCAD model includes existing conditions pervious area curve numbers (based on HSG C) of 72 and 74 for Woods/Grass. These values are higher than the acceptable range of the South Washington Watershed District. The South Washington Watershed District Standards Manual specifies: "For predevelopment conditions, the allowable range for a CN to reflect undeveloped conditions should fall within values of 52 — 62 and must not exceed a value of 62.". Please revise the HydroCAD model existing conditions pervious curve numbers to comply with the Watershed District standard. b. The stormwater narrative and HydroCAD report indicate that simulated precipitation for the 2-year, 10-year and 100-year events is 2.8", 4.16" and 7.2", respectively. Please revise the HydroCAD model to simulate 7.4" in the 24-hour 100-year event to be consistent with NOAA Atlas 14, the City Surface Water Plan, and the modeling that was completed for the adjacent Northwick Park development. c. The HydroCAD model and proposed conditions drainage area map indicate that Subwatersheds 30S (2.43 acres @26.4 % impervious) and 51oS (0.4 acres @ 54.6% impervious) drain untreated off -site to Northwick Park. Explain why these subwatersheds aren't collected and conveyed to Pond 20P or another BMP on the Cardinal Reserve. For example, evaluate if a 12" RCP be installed along the boundary with Northwick Park to collect and convey this runoff, with the pipe extending from Outlot C at Elevation 939 to catch basins on 62nd Street with invert elevations of 938 and continuing north to a pretreatment cell at the southern end of the infiltration basin with a FES at elevation 935. d. The HydroCAD simulations of existing and proposed conditions include existing pond 10P (West Depression). The City would prefer that the development minimize the proposed drainage to that location. The HWL is 973.36 for proposed conditions with a bottom elevation of 970 and a similar existing conditions 100-year peak elevation simulated as 973.26 feet. The infiltration rate used in the existing and proposed models is 0.06 inches per hour (which is the MPCA recommended design infiltration rate for clay soils). Soil borings SB-1 and SB-2 are located in the general vicinity of Pond 10P. Both borings include layers of clay soils. 1. Any proposed ponding would need to be contained on publicly owned land and not be stored on private property. Evaluate the grading plan versus the proposed HWL. ii. The modeled pond depth in a 100-year event is 3.3 feet. An infiltration rate of 0.06 inches per hour has a calculated drawdown depth of about 0.24 feet in 48 hours, therefore, the existing and proposed infiltration basin will not draw down within 48 hours. The NPDES Construction Stormwater Permit Section 16.8 (see inset below) requires that infiltration basins drawdown within 48 hours and that excess runoff be bypassed. Please revise the basin design to include a bypass Bolton & Menk is an equal opportunity employer. Cardinal Reserve Plan Review Page: 7 and to achieve a 48 hour drawdown or explain how the proposed work is compliant. 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] 52. Volume Control a. The Surface Water Management Plan indicates: At the discretion of the City Engineer, post -construction testing of infiltration/filtration rates within stormwater basins will be required, or post -construction records of water level measurements within stormwater basins will be required, to verify that design infiltration/filtration rates and drawdown periods will be met." Post -construction infiltration testing will be required. b. Clay Liner: Sheet C3.01 indicates the design pond bottom elevation is 926 feet. Soil boring SB-5 extends to a depth of 21 feet and an elevation of 928 feet —which is not deep enough to characterize the materials at and below the pond bottom. Borings are needed to identify soil conditions and the presence of groundwater or bedrock. Soil borings should extend a minimum of 3 feet below the lowest constructed elevation of proposed BMPs. i. The wet sediment pond should be lined to prevent infiltration. Place a 1-foot minimum clay liner along pond bottom up to 1 foot above the pond NWL. Liner shall have a maximum permeability of 1x10-6 cm/s with a minimum 15% passing the #200 sieve. c. For a successful vegetation establishment within an infiltration feature, the City recommends providing a Filter Topsoil Borrow (MnDOT 3877.2G) consisting of 70% sand (meeting the gradation requirements of 3126 "Fine Aggregate for Portland Cement Concrete") and 30% Grade 2 Compost (MnDOT 3890). Lower compost levels have typically proved difficult when establishing vegetation in basins. Please update the infiltration basin to include a 1-foot thickness of soil media to match the City standard m ix. 53. Water Quality: The City requires that new development projects include BMPs that at a minimum achieve post -development reductions in total phosphorus (TP) and total suspended solids (TSS) by 50% and 80%, respectively. Watershed rules call for TP loading rate of 0.075 lbs./acre/year or existing loading rates, whichever is less, since the project site drains to Ravine Lake. a. The P8 model input for several of the proposed conditions subwatersheds list acreages and impervious fraction values that do not match the HydroCAD model values. Please update the P8 and/or HydroCAD models so the subwatershed areas and impervious fractions are consistent or explain the differences. 54. Freeboard: a. Pond Freeboard standards: For stormwater facilities with emergency overflows, the low adjacent grade elevation for all new structures must be a minimum of 3 feet above both Bolton & Menk is an equal opportunity employer. Cardinal Reserve Plan Review Page: 8 the peak surface water elevation for the 100-year precipitation event and 2 feet above the emergency overflow elevation of any immediately adjacent new stormwater basin. i. 3' of freeboard is not provided between the HWL (973.36) and the low adjacent grade (LAG) near Pond 1013 for six lots: Block 4 Lots 7 through 12. Please revise the LAG elevations or the Pond 10 HWL to provide the required freeboard. 55. Erosion and Sediment Control and SWPPP a. The SWPPP checklist identifies some missing items. With the final plat submittal please provide a complete SWPPP document including the following: i. Regarding final stabilization, please identify the seed mixes that will be used throughout the whole site. ii. Identify areas of steep slopes and the BMPs to address them. iii. Temporary Sediment basins need to have an outlet designed to remove floating debris, withdraw from the surface, and allow complete drawdown. Please add these outlet design details to the plans. iv. Temporary and permanent BMPs need stabilized emergency spillways. Please add the details to the plans. 56. Rational Design: a.Time of concentrations used within the Rational Design spreadsheet range from 5 to 12 minutes. The City's surface water management plan recommends a minimum time of concentration of 8 minutes. b. CBMH 110 and CBMH 102 have computed catch basin flows of 4.6 and 5.6 cfs. The Surface Water Management Plan requires that 3 cfs be the maximum at an inlet for the 5-year design. Please revise the storm drain design to comply with the 3 cfs per inlet standard by adding additional catch basins in these areas or by making other adjustments. c. The maximum velocity into a wet basin is 6-fps and maximum velocity in any pipe is 10- fps. The grade on storm pipe segments will be reviewed when profiles are provided. Bolton & Menk is an equal opportunity employer. Boulevard Tree Planting List 2020 Overstory Northern Pin Oak- Quercus ellipsoidalis Red Oak- Quercus rubra White Oak- Quercus alba Swamp White Oak- Quercus bicolor St. Croix Elm- Ulmus americans 'St. Croix' New Horizon Elm- Ulmus 'New Horizon' Accolade Elm- Ulmus davidiana var. japonica Morton' Skyline HoneVlocust- Gleditsia tricanthos var. inermis 'Skycole' HackberrV- Celtis occidentalis River Birch- Betula nigra (SINGLE STEM ONLY) Yellowwood- Cladrastis kentuckea Kentucky Coffeetree- Gymnocladus dioicus London Planetree- Platanus x acerifolia Tuliptree- Liriodendron tulipifera Understory Japanese Tree Lilac- Syringe reticulate 'Ivory Silk' Spring Snow Crabapple- Malus 'Spring Snow' Ironwood- Carpinus caroliniana