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CC Staff Report 8-13-18CITY COUNCIL STAFF REPORT Monday, August 13, 2018 Subject Control Concepts: Approve Site Plan with a Variance for Lot 2, Block 1, Arboretum Business Park 7th Addition Section NEW BUSINESS Item No: G.2. Prepared By Bob Generous, Senior Planner File No: PC 201811 PROPOSED MOTION “The City Council approves a Site Plan for a 54,600 squarefoot office, warehouse, and manufacturing building, and a variance for constructing retaining walls in the Bluff Creek primary zone setback subject to the conditions of approval in the Planning Commission staff reports.” Council approval requires a Simple Majority Vote of members present. SUMMARY The applicant is requesting approval for a 54,600 squarefoot, twostory office/warehouse/manufacturing building with a setback variance to permit the construction of retaining walls within the 40foot Bluff Creek Primary zone setback. BACKGROUND On July 17, 2018, the Planning Commission held a public hearing to review the proposed site plan. The Planning Commission voted 6 0 to recommend approval of the site plan subject to the conditions in the staff report. The Planning Commission was concerned about the size of the retaining wall adjacent to the proposed pedestrian trail, towering 17 feet above the path. On August 7, 2018, the Planning Commission held a public hearing to review a variance request to permit the construction of retaining walls within the Bluff Creek primary zone setback. This variance allows the construction of tiered retaining walls, reducing the height of the walls above the wetland trail creating a better pedestrian experience. The Planning Commission voted 6 0 to recommend approval of the variance subject to the conditions in the staff report. The only comment was if the trail was necessary since there is already a trail connection from 82nd Street West and Century Boulevard to the wetland trail. The Planning Commission minutes for July 17, 2018 are in the consent agenda for the August 13, 2018 City Council packet. The Planning Commission minutes for August 7, 2018 are attached to this report. DISCUSSION The applicant is requesting approval to construct a 54,600 squarefoot office industrial building. As part of the project, they are constructing a "wetland trail" connection from Century Boulevard as required of the Arboretum CITY COUNCIL STAFF REPORTMonday, August 13, 2018SubjectControl Concepts: Approve Site Plan with a Variance for Lot 2, Block 1, Arboretum BusinessPark 7th AdditionSectionNEW BUSINESS Item No: G.2.Prepared By Bob Generous, Senior Planner File No: PC 201811PROPOSED MOTION“The City Council approves a Site Plan for a 54,600 squarefoot office, warehouse, and manufacturing building, anda variance for constructing retaining walls in the Bluff Creek primary zone setback subject to the conditions ofapproval in the Planning Commission staff reports.”Council approval requires a Simple Majority Vote of members present.SUMMARYThe applicant is requesting approval for a 54,600 squarefoot, twostory office/warehouse/manufacturing building witha setback variance to permit the construction of retaining walls within the 40foot Bluff Creek Primary zone setback.BACKGROUNDOn July 17, 2018, the Planning Commission held a public hearing to review the proposed site plan. The PlanningCommission voted 6 0 to recommend approval of the site plan subject to the conditions in the staff report. ThePlanning Commission was concerned about the size of the retaining wall adjacent to the proposed pedestrian trail,towering 17 feet above the path.On August 7, 2018, the Planning Commission held a public hearing to review a variance request to permit theconstruction of retaining walls within the Bluff Creek primary zone setback. This variance allows the construction oftiered retaining walls, reducing the height of the walls above the wetland trail creating a better pedestrian experience. The Planning Commission voted 6 0 to recommend approval of the variance subject to the conditions in the staffreport. The only comment was if the trail was necessary since there is already a trail connection from 82nd StreetWest and Century Boulevard to the wetland trail.The Planning Commission minutes for July 17, 2018 are in the consent agenda for the August 13, 2018 City Councilpacket. The Planning Commission minutes for August 7, 2018 are attached to this report.DISCUSSION The applicant is requesting approval to construct a 54,600 squarefoot office industrial building. As part of the project, they are constructing a "wetland trail" connection from Century Boulevard as required of the Arboretum Business Park 7th Addition. In conjunction with this, they are installing retaining walls within the 40foot Bluff Creek primary zone setback to facilitate the construction of the parking lot for the development, as well as accommodating the wetland trail to the Chanhassen Nature Preserve. This revised plan was in response to discussion as part of the site plan review public hearing on July 17, 2018. The intent was to create a better pedestrian environment on the trail by reducing the 17foot tall retaining wall on the uphill side of the trail. The revised staged walls will create a mini overlook of the wetland, being 10 feet above the bottom of the lower retaining wall in the area of the northeast corner of the parking lot. RECOMMENDATION Staff recommends that City Council approve the site plan with the variance to allow the construction of the 54,600 squarefoot building and pedestrian trail subject to the conditions in the staff reports. ATTACHMENTS: Planning Commission Staff Report Dated July 17, 2018 Planning Commission Staff Report Dated August 7, 2018 Retaining Wall Cross Section One Wall Retaining Wall Cross Section Tiered Walls Site Plan Findings of Fact and Recommendation Site Plan Findings of Fact and Recommendation Variance August 7, 2018 Planning Commission Minutes CITY OF CHANHASSEN PC DATE: July 17, 2018 CC DATE: August 13, 2018 REVIEW DEADLINE: August 14, 2018 CASE #: 2018-11 BY: JA, GB, RG, DN, JS, VS SUMMARY OF REQUEST: The applicant is requesting site plan approval for a 54,600 square-foot, two story office-warehouse-manufacturing building. LOCATION: Lot 2, Block 1, Arboretum Business Park 7th Addition (PID 25.0680020) 8077 Century Boulevard APPLICANT: Bauer Design Build Zion Investments, LLC 14030 21st Avenue N 7014 Willow Creek Road Plymouth, MN 55447 Eden Prairie, MN 55344 (763) 999-7217 (952) 474-6200 mikel@bauerdb.com cwatkins@ccipower.com PRESENT ZONING: Planned Unit Development (PUD)/ Bluff Creek Overlay District PROPOSED MOTION: “The Chanhassen Planning Commission recommends approval of the site plan for a 54,600 square-foot office, warehouse and manufacturing building subject to the conditions of approval and adoption of the findings of fact and recommendation.” Planning Commission 8077 Century Boulevard – Control Concepts July 18, 2018 Page 2 of 14 2020 LAND USE PLAN: Office Industrial ACREAGE: 5.23 acres DENSITY: 0.24 F.A.R. LEVEL OF CITY DISCRETION IN DECISION-MAKING: The city’s discretion in approving or denying a Site Plan is limited to whether or not the proposed project complies with Zoning Ordinance requirements. If it meets these standards, the city must then approve the site plan. This is a quasi-judicial decision. Notice of this public hearing has been mailed to all property owners within 500 feet. PROPOSAL/SUMMARY Site plan approval for a 54,600 square-foot, two story office-warehouse-manufacturing building. A 16,452 square foot, one story tenant space is proposed for the eastern end of the building. APPLICABLE REGULATIONS Chapter 20, Article 2, Division 6, Site Plan Review Chapter 20, Article XXIII, Division 7, Design Standards for Commercial, Industrial and Office- Institutional Developments Arboretum Business Park Development Standards BACKGROUND On May 29, 2007, the Chanhassen City Council approved the following: Preliminary and final plat for two lots and one outlot (Arboretum Business Park 7th Addition). Conditional Use Permit for development within the Bluff Creek Corridor. Site Plan for a 51,800 square-foot office/warehouse building (Mamac Systems) with a variance to permit only 32 percent building transparency on the western building elevation and with a 20- foot setback variance for the drive aisle in the southeast corner of the site for development within the Bluff Creek Corridor on Lot 1, Block 1, Arboretum Business Park 7th Addition. On September 24, 2001, the Chanhassen City Council approved Interim Use Permit (IUP) #2001-1 to grade a portion of the Arboretum Business Park development and Conditional Use Permit (CUP) #2001-8 to permit development within the Bluff Creek Overlay District. The IUP and CUP included this property. Planning Commission 8077 Century Boulevard – Control Concepts July 18, 2018 Page 3 of 14 On July 28, 1997, the City Council approved the following: the ordinance for PUD #92-6 rezoning approximately 154 acres from Agricultural Estate, A2, to Planned Unit Development, PUD, and the PUD #92-6 granting final plat approval for Arboretum Business Park. On June 23, 1997, the City Council approved a Resolution that the AUAR be revised to incorporate the summary of issues and mitigation plan contained in the staff report, that the revisions to the Traffic Study prepared by SRF outlined in the staff report be incorporated into the study, and that the revised AUAR be adopted by the city. On May 27, 1997, the City Council approved the following: • Approved the first reading for rezoning the property from Agricultural Estate, A2, to Planned Unit Development, PUD. • Approved the preliminary PUD #92-6 for an office/industrial business park and preliminary plat approval for 12 lots, two outlots and associated right-of-way subject to the plans dated April 4, 1997, revised May 23, 1997, with conditions. • The City Council approved a Wetland Alteration Permit for Gateway Business Park subject to the conditions of preliminary PUD #92-6 approval. • The City Council approved Interim Use Permit #97-1 for Gateway West Planned Unit Development site subject to conditions. DISCUSSION The applicant is requesting site plan approval for a 54,600 square foot, two story, office- warehouse-manufacturing building. Site Constraints Wetland Protection The City of Chanhassen Wetland Inventory, the National Wetland Inventory, a review of historic aerial photography and a site visit reveal that wetland is present on the site. The applicant has submitted a wetland delineation and type determination for city review and approval. Bluff Protection There are no bluffs present on the site. Planning Commission 8077 Century Boulevard – Control Concepts July 18, 2018 Page 4 of 14 Bluff Creek Primary Zone The eastern portion of the site is located within the Bluff Creek Primary Zone. A Conditional Use Permit was approved in 2007 for development in the overlay district. This area is proposed for preservation as permanent open space. A 40 foot structure setback with the first 20 feet in buffer is required. A trail connection is required by the city from Century Boulevard to the existing trail around the wetland complex. Shoreland Management The property does not lie within a shoreland overlay district. Floodplain Overlay This property does not lie within a floodplain. ARCHITECTURAL COMPLIANCE Size Portion Placement The main entry is located in the southwest corner of the building for the primary unit and on the north side for the second unit. The entrance shows an accent stone base at the entrance with a pewter colored metal canopy, below silver colored curtain wall panels around the windows, surrounded by red metal accent panels, topped with a pewter color, perforated metal Additional architectural articulation shall be provided for the second unit primary access, which may include adding a canopy element. Planning Commission 8077 Century Boulevard – Control Concepts July 18, 2018 Page 5 of 14 Material, Color and Detail The applicant is proposing the predominate building material of two toned, gray and exposed aggregate, precast concrete wall panel, with partition lines and banding. Accent is added through the spacing of aluminum storefront systems, pewter colored metal panels, perforated metal panels, red accent panels and recessed walls at the storefront window locations and entrances. Height and Roof Design The building height is 38 feet to the top of the parapet. The parapet is topped with a red metal coping material. Facade Transparency The applicant meets the 50 percent glazing (window) requirements. Windows are provided in all office areas of the building. The windows are within silver colored anodized aluminum window frames. Loading areas, refuse area, etc. Delivery and service overhead doors are located on the south side of the building facing the building to the south. Trash enclosures are not shown around the building so staff assumes that trash is stored inside and brought out through the overhead doors at the time of pick-up. If exterior dumpsters are to be used, then trash enclosures will need to be constructed using material compatible with the building. Lighting The applicant is proposing 25-foot tall light poles around the parking lot as well as wall pack units around the building. LED lighting is proposed. All lighting shall be shielded and have 90 degree cut-off angles pursuant to city code. Signage The applicant is proposing signage on the west elevation of the building and a monument sign at the entrance. Signage must follow the standards for the IOP district. Signage may not be located within drainage and utility easements and will need to be moved to another location on the site or the easement may be vacated. Tenant signage may be located above the entrance of the tenant space on the north side of the building. A separate sign permit must be submitted for each sign. Site Furnishings The applicant is proposing constructing a trail as part of the development. They should add bike rakes as well as an outdoor seating/picnic area. Planning Commission 8077 Century Boulevard – Control Concepts July 18, 2018 Page 6 of 14 Landscaping Minimum requirements for landscaping at the proposed development include 5,604 sq. ft. of landscaped area around the parking lot, 5 landscape islands or peninsulas, and 20 trees for the parking lot. The applicant’s proposed as compared to the requirements for landscape area and parking lot trees is shown in the following table: Required Proposed Vehicular use landscape area 5,064 sq. ft. >5,064 sq. ft. Trees/parking lot 20 trees 28 trees Islands or peninsulas/parking lot 5 islands/peninsulas 5 islands/peninsulas The applicant meets minimum requirements for trees and landscaping in the parking lot area. Bufferyard requirements: Required plantings Proposed plantings Bufferyard C – North prop. line, open space, 500 feet 7 overstory trees 12 Understory trees 15 Shrubs 1 overstory trees 12 Understory trees 20 Shrubs Bufferyard B – south prop. line, 500 feet 7 Overstory trees 15 Understory trees 22 Shrubs 8 Overstory trees 11 Understory trees 23 Shrubs The applicant shall add overstory trees to the north property line. A scattering of three oaks in the native seed planting will be acceptable. Staff also recommends that a shrub row be located between the front parking area and the property line to screen the parking lot. The rear wooded area on the lot is within the Bluff Creek Overlay District. This wooded area is in the primary zone and shall be preserved with the exception of the public trail connection. The developer shall install Conservation Area signage at the north and south property lines and at the trail. Access, Lot Frontage and Parking Location The lot fronts on Century Boulevard and proposes two access driveways. Parking is distributed on the western and northern sides of the building with truck docks located on the south side of the building. An access drive is provided around the entire building. Fire Lane No Parking areas for all the curbing except those directly adjacent to parking spaces will need to be painted yellow with NO PARKING FIRE LANE signs posted per city/fire code. Planning Commission 8077 Century Boulevard – Control Concepts July 18, 2018 Page 7 of 14 Miscellaneous Sheets C4.1 & C4.2 shall be revised as follows: Utility notes 8 & 9. Sanitary sewer must be schedule 40. MPC table 701.1 Utility notes 11, 12 & 13. Minnesota rules 4715 is no longer the State plumbing code. Minnesota rules 4714 is the current code. Please change all references to 4714 along with the current code sections. Submit details on the storm detention system. Retaining walls over 4 feet in height require an engineered design. Plans must be submitted by a design professional on the proposed structure. All design information should be included (i.e. exiting, code analysis, proposed occupancies and occupancies). EASEMENTS There are several existing easements on this property as shown on the survey. Two existing drainage and utility easements are atypical. Staff believes standard drainage and utility easements associated with the lot lines are appropriate for this site. The atypical portions of the existing easements should be vacationed to avoid the need for additional encroachment easements. A permanent easement will be required to be granted over the city’s trail that will traverse through the property. PARKS & RECREATION The applicant is proposing a trail connection to the trial within Century Boulevard and the trail located within the Bluff Creek primary zone. No Park and Trail frees are being collected because there is no subdivision. The developer shall be responsible for planning, engineering, and constructing the “wetland trail.” Connection points for this new trail shall be the terminus of the Trotters Ridge trail, the intersection of Century Boulevard and West 82nd Street, and the intersection of Century Boulevard and Water Tower Place. Bid documents, including plans and specifications, shall be approved by the Park & Recreation Director and City Engineer prior to soliciting bids. Project bidding shall occur in a competitive environment with a minimum of three bids being received. The results of the bidding process shall be reviewed with the Park & Recreation Director and City Engineer prior to award. Cash payment for trail construction shall be made from the City of Chanhassen to the developer upon completion, inspection, and acceptance of the trail. Planning Commission 8077 Century Boulevard – Control Concepts July 18, 2018 Page 8 of 14 Trail easements within Lot 2, Block 1, Arboretum Business Park 7th Addition (formerly Outlot C, Arboretum Business Park) shall be dedicated to the city to accommodate the “wetland trail”. UTILITIES The developer will extend sanitary sewer and water service to the building from the existing utility lines in Century Boulevard. The developer is proposing to wet-tap the existing 12 inch watermain in the street to establish an 8 inch service connection for water to the building. Engineering recommends the site designer utilize PVC C900 watermain grade pipe in lieu of ductile iron pipe. This recommendation is based on past experience regarding the local soils being corrosive in nature. The developer is proposing to add a manhole to connect the sanitary service from the site to the main in the street. There is an existing sanitary manhole 35 feet to the north of the proposed manhole. The developer should review routing the sanitary service to the existing manhole to avoid adding another manhole in the street that the city maintains and to save on installation costs. Engineering believes the connection at a manhole is an appropriate design because it will allow Staff to monitor the flow from the site if needed. GRADING The proposed site grading is a concern because the trail location is sandwiched between the wetland buffer and the proposed parking lot for the building concept. The site includes a retaining wall to maintain a standard trail design. The design standards include a maximum of a Planning Commission 8077 Century Boulevard – Control Concepts July 18, 2018 Page 9 of 14 5 percent slope lineally along the trail throughout the site as much as is feasible. The retaining wall, which wraps around the parking lot on the north and east sides of the building, is shown to be 17 feet in height above portions of the trail and there isn’t enough buffer area between the proposed parking lot and the trail for staff to recommend this as a safe and long term design. The site layout should be reviewed by the developer to address this concern. Staff also recommends the developer consider snow removal and storage as part of the site design. Staff is concerned there isn’t enough available stockpiling space for the snow. The southern portion of the retaining wall could be placed further to the east to create more storage area that works with the lot design. DRAINAGE AND EROSION CONTROL The proposed development will exceed one (1) acre of disturbance and will, therefore, be subject to the General Permit Authorization to Discharge Stormwater Associated with Construction Activity Under the National Pollution Discharge Elimination/State Disposal System (NPDES Construction Permit). All erosion control shall be installed and inspected prior to initiation of site grading activities. The proposed redevelopment will need Riley-Purgatory-Bluff Creek Watershed District (RPBCWD) permits. STORM WATER MANAGEMENT Article VII, Chapter 19 of City Code describes the required storm water management development standards. Section 19-141 states that “these development standards shall be reflected in plans prepared by developers and/or project proposers in the design and layout of site plans, subdivisions and water management features.” These standards include abstraction of runoff and water quality treatment resulting in the removal of 90% total suspended solids (TSS) and 60 percent total phosphorous (TP). Compliance Table Code Project (Control Concepts) Building Height 3 stories 2 stories 40 feet 38 feet (to top of parapet) Building Setback N* - 0' E# - 0' N - 129' E - 237' W - 50' S - 0' W - 80' S – 64’ * There is a wetland setback. # There is a 40-foot setback required from the Bluff Creek Primary Zone boundary. Parking Stalls 103 stalls 106 stalls Planning Commission 8077 Century Boulevard – Control Concepts July 18, 2018 Page 10 of 14 (Office = 4 spaces per 1,000 square feet ((15,135/1,000)*4= 61); Manufacturing = 1 per employee on largest shift (28 employees); warehouse = 1 space per 1,000 square feet for the first 10,000 square feet, then 1 space per 2,000 square feet ((10,000/1,000)+(7,962/2,000)=14) Parking Setback N - 0' E #- 0' N - 52' E - 200' W - 10' S - 0' W - 10' S - 11' Hard Surface Coverage 70% 58.6% Lot Area 43,560 sq. ft. 227,850 sq. ft. (5.23 ac.) RECOMMENDATION Staff recommends that the Planning Commission approve the site plan for a 54,600, two story building, plans prepared by Loucks and BDH & Young, dated 06-15-2018, subject to the following conditions: Building 1. Sheets C4.1 & C4.2 a. Utility notes 8 & 9. Sanitary sewer must be schedule 40. MPC table 701.1 b. Utility notes 11, 12 & 13. Minnesota rules 4715 is no longer the State plumbing code. Minnesota rules 4714 is the current code. Please change all references to 4714 along with the current code sections. 2. Submit details on the storm detention system. 3. Retaining walls over 4 feet in heights require an engineered design. 4. Plans must be submitted by a design professional on the proposed structure. All design information should be included (i.e. exiting, code analysis, proposed occupancies and occupancies). Environmental Resources 1. The applicant shall revise the landscape plan to add three bur oaks to the north property line native seed area. 2. The applicant shall revise the landscape plan to add a row of shrubs for screening of the parking area along Century Blvd. The screening shall be a minimum of 3 feet tall at maturity. Planning Commission 8077 Century Boulevard – Control Concepts July 18, 2018 Page 11 of 14 3. The Bluff Creek Overlay District shall be shown on the site and landscape plans. 4. The applicant shall install Conservation Area signs at the edge of the Bluff Creek Overlay District at the north and south property lines and at the trail. The signs are available for purchase at the Chanhassen Public Works. Fire 1. Fire Lane No Parking areas for all the curbing except those directly adjacent to parking spaces will need to be painted yellow with NO PARKING FIRE LANE signs posted per city/fire code. Parks 1. The developer shall be responsible for planning, engineering, and constructing the “wetland trail.” Connection points for this new trail shall be the terminus of the Trotters Ridge trail, the intersection of Century Boulevard and West 82nd Street, and the intersection of Century Boulevard and Water Tower Place. Bid documents, including plans and specifications, shall be approved by the Park & Recreation Director and City Engineer prior to soliciting bids. Project bidding shall occur in a competitive environment with a minimum of three bids being received. The results of the bidding process shall be reviewed with the Park & Recreation Director and City Engineer prior to award. Cash payment for trail construction shall be made from the City of Chanhassen to the developer upon completion, inspection, and acceptance of the trail. 2. Trail easements within Lot 2, Block 1, Arboretum Business Park 7th shall be dedicated to the city to accommodate the “wetland trail”. Planning 1. The applicant shall enter into a site plan agreement and provide the security required by it prior to receiving a building permit. 2. Additional architectural articulation shall be provided for the second unit primary access. 3. Add bike racks as well as an outdoor seating/picnic area. 4. A separate sign permit application, review and approval shall be required prior to site sign installation. Water Resources and Engineering 1. The limits of the Bluff Creek Overlay District shall be identified throughout the plan set. Planning Commission 8077 Century Boulevard – Control Concepts July 18, 2018 Page 12 of 14 2. Show the western curb line along Century Boulevard and the crosswalk at Water Tower Place throughout the plan set. 3. Vacate drainage and utility easements except the standard 10 foot wide easement associated with the front of the parcel in addition to the standard 5 foot wide easement associated with the side and rear portions of the parcel. 4. The wetland, wetland buffer, and the Bluff Creek Overlay District shall be designated as Outlots. 5. Provide a permanent easement over the trail throughout the parcel. 6. Apply for an Encroachment Agreement for the private sidewalk. 7. Add detailed design for the retaining wall including a profile, proposed construction materials, and railing/fence. The trail is designed to be on the bottom side of a retaining wall that has portions of it detailed to be 17 feet in height. The safety of the users of the trail needs to be coordinated. 8. Consider adjustment of the site design to facilitate maintenance and snow removal. 9. Include a detail for tree protection. 10. Add note to protect the existing line of trees on the shared property with the parcel to the south. 11. Detail asphalt cut-out and replacement in the street to facilitate the installation of the concrete aprons. 12. Install ADA pedestrian ramp for trail crossing at Century Boulevard. 13. Adjust curb radius design to meet city detail #5207 in association with the commercial entrances. A radius smaller than 20 feet may be appropriate for the shared property with the parcel to the south. 14. Adjust slope of the northern commercial entrance to meeting city detail #5207. 15. Replace any striping removed in Century Boulevard. 16. All parking stalls shall be 9 feet in width including handicapped stalls. 17. Add a radius to the trail where it connects to the existing bituminous trail to facilitate maintenance. Include additional tree removal area. Planning Commission 8077 Century Boulevard – Control Concepts July 18, 2018 Page 13 of 14 18. All striping and signage shall meet the requirements of the MN-MUTCD manual. 19. Indicate lineal slope design for the trail. 20. All disturbed areas require a minimum of 6 inches of topsoil and must meet decompaction requirements. 21. Salvage existing topsoil and indicate stockpile location. 22. Add inlet protection in the catch basins on the west side of Century Boulevard. 23. Add rock construction entrance at the southern commercial entrance. 24. Extend the silt fence installation as appropriate to protect from construction. 25. The patch for the watermain connection shall be the full width of Century Boulevard. 26. Detail 5302A is shown twice on the SWPPP plan sheet. 27. Utilize C900 PVC pipe for the water service pipe material in lieu of DIP. Fittings shall be epoxy coated. 28. Sanitary manhole detail #5101 requires the pipe connections to be sealed with a cored and sealed connection. The utility plan details a build over manhole for the sanitary service connection. Add notes identifying the pipe connection requirements. 29. Review sanitary design from a future maintenance and a cost perspective. Adding Sanitary manhole #1 approximately 35 feet to the south of an existing manhole is questionable. The sanitary service line could be routed directly to the existing manhole. The invert would need to be reconstructed and a cored and booted connection would be required. 30. Applicant is permitted a connection to municipal stormdrain system after meeting treatment and discharge requirements of city and RPBCWD. Applicant is responsible for ensuring municipal system is capable of handling the additional capacity. 31. Applicant is responsible for any improvements necessary to the municipal system to meet capacity and regulatory requirements from the point of connection up to and including the outlet/receiving water body 32. Connection is not permitted in catchbasin. Must connect to storm main in Century Blvd. Include access manhole. Invert elevation in the manhole shall allow for 0.1 inches of fall through the structure. Planning Commission 8077 Century Boulevard – Control Concepts July 18, 2018 Page 14 of 14 33. Access MH missing from western most section of Contech structure. 34. Proprietary filtration devices should be used as pretreatment vs post treatment. 35. Identify snow storage location on plans. 36. Identify stockpile locations on plan. 37. Bluff Creek Overlay District (BCOD) signs and locations are required on plans. Signs are required at each point the BCOD crosses the property boundary, every 100 feet, every point of deflection. 38. Include BCOD sign detail. 39. The proposed redevelopment will need Riley-Purgatory-Bluff Creek Watershed District (RPBCWD) permits. 40. It is the applicant’s responsibility to ensure and submit proof that permits are received from all other agencies with jurisdiction over the project (i.e. Army Corps of Engineers, DNR, MnDOT, Carver County, RPBCWD, Board of Water and Soil Resources, PCA, etc.). 41. Project will require stormwater management fees associated with city development review and permitting process. 42. The city is in agreement with the RPBCWD comments identified in the email dated June 26, 2018 titled ‘RPBCWD Permit 2018-43: Control Concepts – Initial Completeness Review Comments.’ With one exception: J10 – the city requests applicant provide additional performance monitoring field data to support manufacturers removal estimates. CITY OF CHANHASSEN PC DATE: August 7, 2018 CC DATE: August 13, 2018 REVIEW DEADLINE: September 17, 2018 CASE #: 2018-11 BY: JA, GB, RG, DN, JS, VS SUMMARY OF REQUEST: The applicant is requesting a setback variance to permit the construction of retaining walls within the 40-foot Bluff Creek Primary zone setback as part of the site plan for a 54,600 square-foot, two story office-warehouse-manufacturing building. LOCATION: Lot 2, Block 1, Arboretum Business Park 7th Addition (PID 25.0680020) 8077 Century Boulevard APPLICANT: Bauer Design Build Zion Investments, LLC 14030 21st Avenue N. 7014 Willow Creek Road Plymouth, MN 55447 Eden Prairie, MN 55344 (763) 999-7217 (952) 474-6200 mikel@bauerdb.com cwatkins@ccipower.com PROPOSED MOTION: “The Chanhassen Planning Commission recommends approval of a Bluff Creek primary zone setback variance to construct retaining walls in the required setback subject to the conditions of approval and adoption of the findings of fact and recommendation.” Planning Commission 8077 Century Boulevard – Control Concepts August 7, 2018 Page 2 of 6 PRESENT ZONING: Planned Unit Development (PUD)/Bluff Creek Overlay District (BCOD) 2020 LAND USE PLAN: Office Industrial ACREAGE: 5.23 acres DENSITY: 0.24 F.A.R. LEVEL OF CITY DISCRETION IN DECISION-MAKING: The city’s discretion in approving or denying a Variance is limited to whether or not the proposed project meets the standards in the Zoning Ordinance for a variance. The city has a relatively high level of discretion with a variance because the applicant is seeking a deviation from established standards. This is a quasi-judicial decision. Notice of this public hearing has been mailed to all property owners within 500 feet. APPLICABLE REGULATIONS Chapter 20, Article 2, Division 3, Variances Chapter 20, Article XXXI, Bluff Creek Overlay District Arboretum Business Park Development Standards BACKGROUND On July 17, 2018, the Planning Commission recommended approval of the site plan for Control Concepts. One of the conditions was that the developer address the location of the trail relative to the 17-foot retaining wall: “Add detailed design for the retaining wall including a profile, proposed construction materials, and railing/fence. The trail is designed to be on the bottom side of a retaining wall that has portions of it detailed to be 17 feet in height. The safety of the users of the trail needs to be coordinated.” Additionally, the developer was directed to consider adjustment of the site design to facilitate maintenance and snow removal. On May 29, 2007, the Chanhassen City Council approved the following: Preliminary and final plat for two lots and one outlot (Arboretum Business Park 7th Addition). Conditional Use Permit for development within the Bluff Creek Corridor. Site Plan for a 51,800 square-foot office/warehouse building (Mamac Systems) with a variance to permit only 32 percent building transparency on the western building elevation and with a 20- foot setback variance for the drive aisle in the southeast corner of the site for development within the Bluff Creek Corridor on Lot 1, Block 1, Arboretum Business Park 7th Addition (Planning Case #2007-10). Planning Commission 8077 Century Boulevard – Control Concepts August 7, 2018 Page 3 of 6 On September 24, 2001, the Chanhassen City Council approved Interim Use Permit (IUP) #2001-1 to grade a portion of the Arboretum Business Park development and Conditional Use Permit (CUP) #2001-8 to permit development within the BCOD. The IUP and CUP included this property. DISCUSSION The applicant is requesting approval to locate retaining walls within the 40-foot Bluff Creek primary zone setback to facilitate the construction of the parking lot for the development as well as accommodating the wetland trail to the Chanhassen Nature Preserve. This revised plan was in response to discussion as part of the site plan review public hearing. The intent was to create a better pedestrian environment on the trail by reducing the 17-foot tall retaining wall on the uphill side of the trail. The revised staged walls will create a mini-overlook of the wetland, being 10 feet above the bottom of the lower retaining wall in the area of the northeast corner of the parking lot. Site Constraints Wetland Protection The City of Chanhassen Wetland Inventory, the National Wetland Inventory, a review of historic aerial photography and a site visit reveal that wetland is present on the site. The applicant has submitted a wetland delineation and type determination for city review and approval. Bluff Protection There are no bluffs present on the site. Bluff Creek Primary Zone The eastern portion of the site is located within the Bluff Creek Primary Zone. A CUP was approved in 2007 for development in the overlay district. This area is proposed for preservation as permanent open space. A 40-foot structure setback with the first 20 feet in buffer is required. A trail connection is required by the city from Century Boulevard to the existing trail around the wetland complex. EASEMENTS A permanent trail easement will be required over the city’s trail that will cross through the property. Planning Commission 8077 Century Boulevard – Control Concepts August 7, 2018 Page 4 of 6 GRADING The revised grading plan shows two main retaining walls between the wetland and the parking lot. The proposed trail is located between the two retaining walls with two-foot buffer strips on each side of the trail. The overall elevation difference is split fairly equally between the two walls to allow the trail to maintain an appropriate grade. The upper wall is about eight feet in average height near the wetland and considerably shorter than was previously proposed. The parapet design in conjunction with a fence shall be added to the upper wall to protect the users of the trail from miscellaneous debris or snow coming over the upper edge above their heads. The lower wall shall incorporate an open railing style to allow snow to be moved through it when the trail is being maintained. A cut section should be detailed on the plan through the retaining wall and trail area to provide additional visualization of the design. The designer should consider maintenance for the site and determine if additional snow storage volume is needed. The available site area has been maximized and only minimal areas remain in which snow can be temporarily stored. The wall design in the southeast corner of the site could be adjusted to accommodate additional snow storage in the setback area for the BCOD. The snow storage calculation should be provided to the City for review or the information could be added to the drawing. A restoration plan for the area within the buffer areas for the wetland and the BCOD shall be provided. Planning Commission 8077 Century Boulevard – Control Concepts August 7, 2018 Page 5 of 6 MISCELLANEOUS Retaining walls over 4 feet in height require an engineered design and a building permit. PARKS & RECREATION The applicant is proposing a trail connection to the trail within Century Boulevard and the trail located within the Bluff Creek primary zone. In reviewing the original trail submittal, there was concern that the trail was located next to a 17-foot tall retaining wall. One suggestion was to have a staged retaining wall that would create a more pedestrian friendly environment. TREE PRESERVATION The rear wooded area on the lot is within the BCOD. This wooded area is in the primary zone and shall be preserved with the exception of the public trail connection. To ensure the most minimal impacts to the existing woods within the BCOD, staff recommends that the trail alignment be field checked before any construction begins. Staff and developer can verify trees to be removed or preserved along the trail construction route. RECOMMENDATION Staff recommends that the Planning Commission approve variance to permit construction of retaining walls within the Bluff Creek primary zone setback as shown in the plans prepared by Loucks, dated 06-15-2018, revised 7-12-18, subject to the following conditions: Building 1. Retaining walls over 4 feet in heights require an engineered design. Environmental Resources 1. The applicant shall coordinate a trail inspection with the city arborist to review tree removals prior to any trail construction activities. 2. Tree protection fencing must be installed at the edge of grading limits along the trail. Parks 1. The developer shall be responsible for planning, engineering, and constructing the “wetland trail.” Connection points for this new trail shall be the terminus of the Trotters Ridge trail and the intersection of Century Boulevard and Water Tower Place. Bid documents, including plans and specifications, shall be approved by the Park & Recreation Director and City Engineer prior to soliciting bids. Project bidding shall occur in a competitive environment with a minimum of three bids being received. The Planning Commission 8077 Century Boulevard – Control Concepts August 7, 2018 Page 6 of 6 results of the bidding process shall be reviewed with the Park & Recreation Director and City Engineer prior to award. Cash payment for trail construction shall be made from the City of Chanhassen to the developer upon completion, inspection, and acceptance of the trail. 2. Trail easements within Lot 2, Block 1, Arboretum Business Park 7th shall be dedicated to the city to accommodate the “wetland trail”. Water Resources and Engineering 1. The limits of the Bluff Creek Overlay District (BCOD) shall be identified throughout the plan set. 2. Add detailed design for the retaining walls including a profile, proposed construction materials, and railings/fences. 3. Add cut sections through the retaining walls and the trail to provide for easier visualization and enhance constructability. 4. Create a parapet design along the upper wall when it is above the trail. 5. Extend the silt fence installation as appropriate to protect from construction. 6. Identify snow storage locations on the plans. 7. Provide a restoration plan for grading in the wetland buffer and in the Bluff Creek Overlay District (BCOD) buffer. 8. The proposed redevelopment will need Riley-Purgatory-Bluff Creek Watershed District (RPBCWD) permits. 9. It is the applicant’s responsibility to ensure and submit proof that permits are received from all other agencies with jurisdiction over the project (i.e. Army Corps of Engineers, DNR, MnDOT, Carver County, RPBCWD, Board of Water and Soil Resources, PCA, etc.). 10. The grade through the ADA areas of the parking lot shall be a maximum of 2% slope in any direction. The point elevations should be re-checked. Add this code requirement in a note on the plans. g:\plan\2018 planning cases\18-11 control concepts - site plan review\variance 18-11\staff report control concepts var.doc TYPICAL CROSS SECTION OF SINGLE RETAINING WALL AT RETAINING WALL ELEVATION #7 SCALE: N/A PROPOSED 42" RAILING PROPOSED RECON BLOCK GRAVITY RETAINING WALL NOTE: THIS INFORMATION IS SHOWN FOR GRAPHICAL PURPOSES ONLY. CONTRACTOR TO PROVIDE RETAINING WALL DESIGN/SHOP DRAWINGS SIGNED BY A PROFESSIONAL ENGINEER FOR APPROVAL PRIOR TO CONSTRUCTION. CONTRACTOR TO SUBMIT SHOP DRAWINGS FOR STEEL PIPE RAILING. ELEV. 68.15 ELEV. 68.45 ELEV. 70.45 ELEV. 51.87 TYPICAL CROSS SECTION OF TIERED RETAINING WALL AT RETAINING WALL ELEVATION #7 SCALE: N/A PROPOSED 42" RAILING PROPOSED RECON BLOCK GRAVITY RETAINING WALL NOTE: THIS INFORMATION IS SHOWN FOR GRAPHICAL PURPOSES ONLY. CONTRACTOR TO PROVIDE RETAINING WALL DESIGN/SHOP DRAWINGS SIGNED BY A PROFESSIONAL ENGINEER FOR APPROVAL PRIOR TO CONSTRUCTION. CONTRACTOR TO SUBMIT SHOP DRAWINGS FOR STEEL PIPE RAILING. ELEV. 68.02 ELEV. 67.45 ELEV. 69.45 ELEV. 60.59 ELEV. 60.31 ELEV. 51.20 06-15-18 CITY SUBMITTAL © 7001 France Avenue S, Suite 200, Edina, Minnesota 55435 952-893-9020 Fax 952-893-9299 www.bdhyoung.com interiors | architecture LOUCKS 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL LOUCKS PROJECT NO. 17516NOT FOR CONSTRUCTIONFOR INFORMATION ONLY06-19-18 WATERSHED SUBMITTAL 07-12-18 WATERSHED RESUBMITTAL 07-27-18 WATERSHED RESUBMITTAL 08-02-18 CITY RESUBMITTAL N NOTE: EXISTING CONDITIONS INFORMATION SHOWN IS PROVIDED BY LOUCKS. REFER TO ALTA/NSPS LAND TITLE SURVEY DATED 05/08/18 FOR COMPLETE SURVEY INFORMATION. Gopher State One Call WARNING: THE CONTRACTOR SHALL BE RESPONSIBLE FOR CALLING FOR LOCATIONS OF ALL EXISTING UTILITIES. THEY SHALL COOPERATE WITH ALL UTILITY COMPANIES IN MAINTAINING THEIR SERVICE AND / OR RELOCATION OF LINES. THE CONTRACTOR SHALL CONTACT GOPHER STATE ONE CALL AT 651-454-0002 AT LEAST 48 HOURS IN ADVANCE FOR THE LOCATIONS OF ALL UNDERGROUND WIRES, CABLES, CONDUITS, PIPES, MANHOLES, VALVES OR OTHER BURIED STRUCTURES BEFORE DIGGING. THE CONTRACTOR SHALL REPAIR OR REPLACE THE ABOVE WHEN DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. SCALE IN FEET 300 60 9 SURVEY LEGEND C1.1 REMOVE TREE TYP REMOVE TREE PER CONVERSATION WITH TODD HOFFMAN (PARK & RECREATION DIRECTOR) REMOVE BITUMINOUS PATH CLEAR AND GRUB AS NEEDED FOR BITUMINOUS PATH CONSTRUCTION REMOVE FENCE AS NEEDED FOR BITUMINOUS PATH CONSTRUCTION SAW-CUT, REMOVE, & REPLACE BITUMINOUS AS NEEDED FOR UTILITY CONSTRUCTION REFER TO UTILITY PLAN PROTECT EXISTING UTILITIES DURING DRIVEWAY AND UTILITY CONSTRUCTION REMOVE & RELOCATE EXISTING LIGHT POLE COORDINATE LOCATION WITH CITY REMOVE & RELOCATE EXISTING SIGN COORDINATE LOCATION WITH CITY REMOVE BITUMINOUS PATH REMOVE CURB & GUTTER REMOVE CURB & GUTTER REMOVE BITUMINOUS PATH PROTECT EXISTING TREES PROTECT EXISTING TREE PROTECT EXISTING TREE PROTECT EXISTING TREE PROTECT EXISTING TREES PROTECT EXISTING UTILITIES DURING DRIVEWAY CONSTRUCTION PROTECT EXISTING TREE LINE PROTECT EXISTING TREES SAW-CUT, REMOVE, & REPLACE BITUMINOUS AS NEEDED ALTERNATE C3 REMOVALS FOR CITY BITUMINOUS TRAIL 06-15-18 CITY SUBMITTAL © 7001 France Avenue S, Suite 200, Edina, Minnesota 55435 952-893-9020 Fax 952-893-9299 www.bdhyoung.com interiors | architecture LOUCKS 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL LOUCKS PROJECT NO. 17516NOT FOR CONSTRUCTIONFOR INFORMATION ONLY06-19-18 WATERSHED SUBMITTAL 07-12-18 WATERSHED RESUBMITTAL 07-27-18 WATERSHED RESUBMITTAL 08-02-18 CITY RESUBMITTAL N NOTE: EXISTING CONDITIONS INFORMATION SHOWN IS PROVIDED BY LOUCKS. REFER TO ALTA/NSPS LAND TITLE SURVEY DATED 05/08/18 FOR COMPLETE SURVEY INFORMATION. Gopher State One Call WARNING: THE CONTRACTOR SHALL BE RESPONSIBLE FOR CALLING FOR LOCATIONS OF ALL EXISTING UTILITIES. THEY SHALL COOPERATE WITH ALL UTILITY COMPANIES IN MAINTAINING THEIR SERVICE AND / OR RELOCATION OF LINES. THE CONTRACTOR SHALL CONTACT GOPHER STATE ONE CALL AT 651-454-0002 AT LEAST 48 HOURS IN ADVANCE FOR THE LOCATIONS OF ALL UNDERGROUND WIRES, CABLES, CONDUITS, PIPES, MANHOLES, VALVES OR OTHER BURIED STRUCTURES BEFORE DIGGING. THE CONTRACTOR SHALL REPAIR OR REPLACE THE ABOVE WHEN DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. SCALE IN FEET 300 60 9 SURVEY LEGEND C1.2 REMOVE EXISTING TREES/WOODS REMOVE EXISTING CURB & GUTTER, RETAINING WALLS, FENCE, ETC. REMOVE EXISTING MANHOLES, POWER POLES, LIGHT POLES, BOLLARDS, PARKING METERS, SIGNS, ETC. REMOVE EXISTING TREES REMOVE EXISTING UTILITIES REMOVE EXISTING BITUMINOUS PAVING DEMOLITION LEGEND 1.CONTRACTOR SHALL REMOVE AND/OR RELOCATE EXISTING PRIVATE UTILITIES AS NECESSARY. CONTRACTOR TO COORDINATE ACTIVITIES WITH UTILITY COMPANIES. 2.CONTRACTOR SHALL PROTECT SURFACE AND SUBSURFACE FEATURES NOT NOTED FOR REMOVAL. 3. CONTRACTOR TO CLEAR AND GRUB EXISTING VEGETATION WITHIN CONSTRUCTION LIMITS, STRIP TOP SOIL, AND STOCKPILE ON-SITE. REFER TO GRADING PLAN AND SWPPP FOR SEDIMENT AND EROSION CONTROL REQUIREMENTS. 4.CLEAR AND GRUB AND REMOVE ALL TREES, VEGETATION AND SITE DEBRIS PRIOR TO GRADING. ALL REMOVED MATERIAL SHALL BE HAULED FROM THE SITE DAILY. ALL CLEARING AND GRUBBING AND REMOVALS SHALL BE PERFORMED PER THE CONTRACT SPECIFICATIONS. EROSION CONTROL MEASURES SHALL BE IMMEDIATELY ESTABLISHED UPON REMOVAL. SEE THE STORMWATER POLLUTION PREVENTION PLAN (SWPPP). 5.CONTRACTOR SHALL REMOVE ALL SITE SURFACE FEATURES WITHIN REMOVAL LIMITS UNLESS OTHERWISE NOTED. SITE DEMOLITION NOTES PROPOSED BUILDING FFE = 971.40 8 20 13 31 31 30'R 15'R 15'R 5'R 5'R 15'R 20'R 30'R 20'R 56'R 5'R 5'R 76'R 20'R413'R 10'R 5'R 5'R 5'R 5'R30'R 5'R 10'R 3'R 55'R18'26'18'4.7'14'35'9' TYP 9' TYP 9' TYP 8' TYP 8' TYP 6.7'9'26' 18' 26' 18'9'TYP9'TYP18'26'146.3'2.6'10.7'8.9 ' 3' 6'10'28.1'89.6'6.7'26'4.7'30.9'45.8'22.5'2.5'9' TYP 20'49.3'26'29.5'5'2.5'9' TYP 8' 3'R 3'R 8'R23'25'3'R 3'R 3'R 3'R 49'R 35'R 112.5'R 126.5'R 64'R 50'R 130'R 140'R 48'R 40'R 48'R 48'R 60'R 50'R 49'R 43'R10'10'80.1'6'6'MATCH EXISTING CURB & GUTTER & BITUMINOUS PAVEMENT MATCH EXISTING CURB & GUTTER MATCH EXISTING CURB & GUTTER & BITUMINOUS PAVEMENT MATCH EXISTING CURB & GUTTER & BITUMINOUS PAVEMENT MATCH EXISTING BITUMINOUS PATH MATCH EXISTING BITUMINOUS PATH MONUMENT SIGN (COORDINATE W/ ARCHITECTURAL) MODULAR BLOCK RETAINING WALL WITH RAILING TYP-SEE DETAIL MODULAR BLOCK RETAINING WALL WITH RAILING TYP-SEE DETAIL B612 CURB & GUTTER TYP-SEE DETAIL HEAVY DUTY BITUMINOUS PAVEMENT TYP-SEE DETAILCONCRETE PAVEMENT TYP-SEE DETAIL HEAVY DUTY BITUMINOUS PAVEMENT TYP-SEE DETAILLIGHT DUTY BITUMINOUS PAVEMENT TYP-SEE DETAIL CONCRETE SIDEWALK TYP-SEE DETAIL CONCRETE STOOP COORDINATE WITH ARCHITECTURAL AND STRUCTURAL PLANS GENERATOR AND TRANSFORMER PAD COORDINATE WITH MECHANICAL PLANS CONCRETE STOOP COORDINATE WITH ARCHITECTURAL AND STRUCTURAL PLANS CONCRETE STOOP COORDINATE WITH ARCHITECTURAL AND STRUCTURAL PLANS CONCRETE STOOP COORDINATE WITH ARCHITECTURAL AND STRUCTURAL PLANS LIGHT DUTY BITUMINOUS PAVEMENT TYP-SEE DETAIL LIGHT DUTY BITUMINOUS PAVEMENT TYP-SEE DETAIL B612 CURB & GUTTER TYP-SEE DETAIL CAST-IN-PLACE RETAINING WALL SEE STRUCTURAL & ARCHITECTURAL 4 - ADA PARKING SIGN TYP-SEE DETAIL 10' TAPER TO FLAT CURB FLAT CURB TYP-SEE DETAIL 10' TAPER TO FLAT CURB CONCRETE STOOP COORDINATE WITH ARCHITECTURAL AND STRUCTURAL PLANS 2 - ADA PARKING SIGNS TYP-SEE DETAIL TYPICAL ADA PARKING TYP-SEE DETAIL 10' BITUMINOUS PATH WITH 2-2' BITUMINOUS MAINTENANCE STRIPS DEFINE 10' PATH W/ 4" WHITE STRIPS TYP-SEE DETAIL 10' BITUMINOUS PATH TYP-SEE DETAIL CONNECT TO EXISTING BITUMINOUS PATH FLAT CURB TYP-SEE DETAIL SURMOUNTABLE CURB & GUTTER AT LOADING DOCK RETAINING WALLS TYP-SEE DETAIL MATCH EXISTING BITUMINOUS PAVEMENT MATCH EXISTING BITUMINOUS PATH MATCH EXISTING BITUMINOUS PATH 10' TAPER TO FLAT CURB FLAT CURB TYP-SEE DETAIL 10' TAPER TO FLAT CURB 10' TAPER TO FLAT CURB 3' TAPER TO FLAT CURB 3' TAPER TO FLAT CURB FLAT CURB TYP-SEE DETAIL 3' TAPER TO FLAT CURB 3' TAPER TO FLAT CURB FLAT CURB TYP-SEE DETAIL 3' TAPER TO FLAT CURB 3' TAPER TO FLAT CURB 3' TAPER TO FLAT CURB CONCRETE APRON TYP-SEE DETAIL CONCRETE APRON TYP-SEE DETAIL 40' AVERAGE BUFFER AREA 20' MINIMUM BUFFER AREA 6-WETLAND BUFFER LOCATION SIGNS TYP-SEE DETAIL 3-BOLLARDS TYP-SEE DETAIL 2-BOLLARDS TYP-SEE DETAIL 6-BOLLARDS TYP-SEE DETAIL BLUFF CREEK OVERLAY DISTRICT SIGN TYP-SEE DETAIL (AVAILABLE FROM CHANHASSEN PUBLIC WORKS) BLUFF CREEK OVERLAY DISTRICT SIGN TYP-SEE DETAIL (AVAILABLE FROM CHANHASSEN PUBLIC WORKS) BLUFF CREEK OVERLAY DISTRICT SIGN TYP-SEE DETAIL (AVAILABLE FROM CHANHASSEN PUBLIC WORKS) SNOW STORAGE CONCRETE PEDESTRIAN RAMP TYP-SEE DETAIL 10' TAPER TO FLAT CURB 4-BIKE RACKS SEE DETAIL LIGHT DUTY BITUMINOUS PAVEMENT TYP-SEE DETAIL TRANSITION TO SURMOUNTABLE CURB SEE DETAIL 3' TAPER TO FLAT CURB DOUBLE SIDED FIRE LANE SIGNS TYP-SEE DETAIL DOUBLE SIDED FIRE LANE SIGNS TYP-SEE DETAIL DOUBLE SIDED FIRE LANE SIGNS TYP-SEE DETAIL TRANSITION TO SURMOUNTABLE CURB SEE DETAIL DOUBLE SIDED FIRE LANE SIGNS TYP-SEE DETAIL REPLACE SHOULDER AND CENTERLINE STRIPING AS NEEDED OUTDOOR SEATING AREA SURMOUNTABLE CURB SEE DETAIL CAST-IN-PLACE RETAINING WALL SEE STRUCTURAL & ARCHITECTURAL 2-BOLLARDS TYP-SEE DETAIL 2-BOLLARDS TYP-SEE DETAIL 2-BOLLARDS TYP-SEE DETAIL SURMOUNTABLE CURB & GUTTER ALONG BUILDING AT LOADING DOCK TYP-SEE DETAIL SURMOUNTABLE CURB & GUTTER ALONG BUILDING AT LOADING DOCK TYP-SEE DETAIL WETLAND BUFFER LOCATION SIGN TO BE MOUNTED ON RAILING 10' BITUMINOUS PATH WITH 2-2' BITUMINOUS MAINTENANCE STRIPS DEFINE 10' PATH W/ 4" WHITE STRIPS TYP-SEE DETAIL"NO PARKING ACCESS AISLE" SIGN TYP-SEE DETAIL 2 - "NO PARKING ACCESS AISLE" SIGN TYP-SEE DETAIL ALTERNATE C2 LIMITS OF SNOW MELT SYSTEM COORDINATE WITH ARCHITECTURAL AND STRUCTURAL PLANS TYP-SEE DETAIL ALTERNATE C1 LIMITS OF SNOW MELT SYSTEM COORDINATE WITH ARCHITECTURAL AND STRUCTURAL PLANS TYP-SEE DETAIL BLUFF CREEK OVERLAY DISTRICT ALTERNATE C1 LIMITS OF SNOW MELT SYSTEM COORDINATE WITH ARCHITECTURAL AND STRUCTURAL PLANS TYP-SEE DETAIL ALTERNATE C2 LIMITS OF SNOW MELT SYSTEM COORDINATE WITH ARCHITECTURAL AND STRUCTURAL PLANS TYP-SEE DETAIL ALTERNATE C3 CITY BITUMINOUS TRAIL TYP-SEE DETAIL 06-15-18 CITY SUBMITTAL © 7001 France Avenue S, Suite 200, Edina, Minnesota 55435 952-893-9020 Fax 952-893-9299 www.bdhyoung.com interiors | architecture LOUCKS 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL LOUCKS PROJECT NO. 17516NOT FOR CONSTRUCTIONFOR INFORMATION ONLY06-19-18 WATERSHED SUBMITTAL 07-12-18 WATERSHED RESUBMITTAL 07-27-18 WATERSHED RESUBMITTAL 08-02-18 CITY RESUBMITTAL N NOTE: EXISTING CONDITIONS INFORMATION SHOWN IS PROVIDED BY LOUCKS. REFER TO ALTA/NSPS LAND TITLE SURVEY DATED 05/08/18 FOR COMPLETE SURVEY INFORMATION. Gopher State One Call WARNING: THE CONTRACTOR SHALL BE RESPONSIBLE FOR CALLING FOR LOCATIONS OF ALL EXISTING UTILITIES. THEY SHALL COOPERATE WITH ALL UTILITY COMPANIES IN MAINTAINING THEIR SERVICE AND / OR RELOCATION OF LINES. THE CONTRACTOR SHALL CONTACT GOPHER STATE ONE CALL AT 651-454-0002 AT LEAST 48 HOURS IN ADVANCE FOR THE LOCATIONS OF ALL UNDERGROUND WIRES, CABLES, CONDUITS, PIPES, MANHOLES, VALVES OR OTHER BURIED STRUCTURES BEFORE DIGGING. THE CONTRACTOR SHALL REPAIR OR REPLACE THE ABOVE WHEN DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. SCALE IN FEET 300 60 SITE NOTES 1.ALL PAVING, CONCRETE CURB, GUTTER AND SIDEWALK SHALL BE FURNISHED AND INSTALLED IN ACCORDANCE WITH THE DETAILS SHOWN PER THE DETAIL SHEET(S) AND STATE/LOCAL JURISDICTION REQUIREMENTS. 2.ACCESSIBLE PARKING AND ACCESSIBLE ROUTES SHALL BE PROVIDED PER CURRENT ADA STANDARDS AND LOCAL/STATE REQUIREMENTS. 3.ALL CURB DIMENSIONS SHOWN ARE TO THE FACE OF CURB UNLESS OTHERWISE NOTED. 4.ALL BUILDING DIMENSIONS ARE TO THE OUTSIDE FACE OF WALL UNLESS OTHERWISE NOTED. 5.TYPICAL FULL SIZED PARKING STALL IS 9' X 18' UNLESS OTHERWISE NOTED. 6.ALL CURB RADII SHALL BE 5.0' UNLESS OTHERWISE NOTED. 7.BITUMINOUS IMPREGNATED FIBER BOARD TO BE PLACED AT FULL DEPTH OF CONCRETE ADJACENT TO EXISTING STRUCTURES AND BEHIND CURB ADJACENT TO DRIVEWAYS AND SIDEWALKS. 8.SEE SITE ELECTRICAL PLAN FOR SITE LIGHTING. CURRENT ZONING:PUD PROPOSED ZONING:PUD PROPERTY AREA:227,850 SF / 5.23 AC EXISTING IMPERVIOUS AREA: 305 SF / 0.007 AC PROPOSED IMPERVIOUS AREA:137,763 SF / 3.16 AC SITE DATA YARD (BUILDING) SETBACKS: FRONT 30 FT MINIMUM SIDE 10 FT MINIMUM REAR 30 FT MINIMUM PARKING SETBACKS: FRONT 10 FT MINIMUM SIDE 10 FT MINIMUM REAR 10 FT MINIMUM OFF-STREET PARKING AND DESIGN STANDARD REQUIREMENTS MINIMUM PARKING LAYOUT DIMENSIONS (90 DEGREE PATTERN): PARKING SPACE WIDTH = 9 FT PARKING SPACE LENGTH = 18 FT DRIVE AISLE WIDTH = 26 FT DEVELOPMENT AND DESIGN STANDARDS SIGNAGE AND STRIPING NOTES 1.CONTRACTOR SHALL BE RESPONSIBLE FOR ALL SITE SIGNAGE AND STRIPING AS SHOWN ON THIS PLAN. 2.CONTRACTOR SHALL PAINT ALL ACCESSIBLE STALLS, LOGOS AND CROSS HATCH LOADING AISLES WITH WHITE PAVEMENT MARKING PAINT, 4" IN WIDTH. 3.CONTRACTOR SHALL PAINT ANY/ALL DIRECTIONAL TRAFFIC ARROWS, AS SHOWN, IN WHITE PAINT. 4.ALL SIGNAGE SHALL INCLUDE POST, CONCRETE FOOTING AND STEEL CASING WHERE REQUIRED. 5.ALL SIGNAGE NOT PROTECTED BY CURB, LOCATED IN PARKING LOT OR OTHER PAVED AREAS TO BE PLACED IN STEEL CASING, FILLED WITH CONCRETE AND PAINTED YELLOW. REFER TO DETAIL. 6.ANY/ALL STOP SIGNS TO INCLUDE A 24" WIDE PAINTED STOP BAR IN WHITE PAINT, PLACED AT THE STOP SIGN LOCATION, A MINIMUM OF 4' FROM CROSSWALK IF APPLICABLE. ALL STOP BARS SHALL EXTEND FROM DIRECTIONAL TRANSITION BETWEEN LANES TO CURB. 7.ALL SIGNS TO BE PLACED 18" BEHIND BACK OF CURB UNLESS OTHERWISE NOTED. 8.FIRE LANE NO PARKING AREAS FOR ALL THE CURBING EXCEPT THOSE DIRECTLY ADJACENT TO PARKING SPACES SHALL BE PAINTED YELLOW WITH "NO PARKING FIRE LANE" SIGNS POSTED PER CITY FIRE CODE. PAVEMENT TYPES NOTE: SEE PAVEMENT SECTIONS ON SHEET C8.3 FOR TYPE AND DEPTH INFORMATION. LIGHT DUTY BITUMINOUS PAVEMENT CONCRETE SIDEWALK HEAVY DUTY BITUMINOUS PAVEMENT CONCRETE PAVEMENT TOTAL PARKING REQUIRED = 100 STALLS TOTAL PARKING PROVIDED = 107 STALLS (INCLUDES ADA STALLS) OFF-STREET PARKING CALCULATIONS ACCESSIBLE PARKING STALLS REQUIRED = 4 STALLS PROPOSED ACCESSIBLE STALLS PROVIDED = 6 STALLS ACCESSIBLE PARKING 73 23 CIVIL LEGEND C2.1 40' WETLAND BUFFER AREA = 10,645 SF 40' AVERAGE WETLAND BUFFER AREA = 10,650 SF WETLAND BUFFER DATA LIMITS OF SNOW MELT SYSTEM ALTERNATE LIMITS OF SNOW MELT SYSTEM 8 8 8 88 8 8888 88844GW=967.20 82.4% 2.1% 88888PROPOSED BUILDING FFE = 971.40 69.00 69.45 68.43 67.71 68.51 69.01 69.18 68.71 69.00 69.44 70.18 69.82 69.85 69.78 69.61 70.10 70.50 69.90 70.15 70.09 69.92 70.13 71.48 71.39 71.75 72.07 71.37 71.71 73.36 71.82 74.17 74.77 75.1875.85 75.90 74.68 74.2774.36 75.03 74.88 73.49 73.93 71.74 71.74 71.16 71.38 70.73 70.73 71.13 71.13 71.13 69.58 69.96 70.53 70.03 68.44 68.77 69.57 68.88 69.2169.8668.7069.4769.16 68.24 67.54 55.11 49.50 49.70 57.02 57.22 53.19 53.39 58.80 58.79 59.80 60.58 61.01 61.21 71.10 70.7170.6270.60 71.14 69.98 70.60 70.25 71.26 71.40 71.27 71.26 71.40 71.10 71.22 71.40 70.81 70.92 70.72 71.01 70.74 70.24 70.44 70.38 70.5770.67 70.76 70.82 70.51 70.13 70.82 70.50 71.04 72.30 71.48 70.70 70.3970.80 71.06 71.13 71.37 71.4071.27 71.31 71.35 71.30 71.37 71.40 71.40 70.45 70.81 70.73 71.37 71.40 71.40 70.87 70.99 71.40 71.23 69.49 70.15 67.40 67.2067.58 67.40 67.16 68.58 70.50 71.40 71.40 67.40 67.20 GW=967.40 TW=971.40 GW=967.20 TW=971.25 69.90 70.50 70.50 GW=967.40 TW=969.30 TW=969.90 TW=969.60 GW=967.50 GW=967.40 TW=969.39 GW=967.17 TW=969.90 GW=967.74 TW=970.50 4. 1 %2.1%2.5%2.0%2.1%2.0%2 . 0%2.0%1.0%1.0%1.5%1.0% 70.37 69.511.0%6.1%1.1%0.3%69.12 2.0% 3.0%2.6%1.0%2.0%70.81 1.3%2.5%2.0%3.3%3.0%3. 0 % 6. 0 % 6. 0 % 6. 0 % 3.1% 1.0%1.0%1.1% 1.1% 2.0%2.0%2.5%1.1%1.5%0.8%1.5%2.9%3.1%2.1%71.74 1.3%2.0%4.3%5.0%2.0% 2.0%5.0% 4.0% 3.0% 2.0 % 2.0% 2.0% 1.5%1.0%3.0%4.0%4.3%0.3%2.0% 2.0%1.8%1.0%1.2%1.0%4. 5 % 4. 5 % 1. 5 %9749 7 2973 971968969970968969970971 968969970971971 970975 974 973 972 97 1 972973970970971971 9 7 2972 971971971971 972 973974969 970 971971 971 970 9 6 5 9 6 1 9 6 2 9 6 3 9 6 4 9 6 6 9 6 7968 9659629639649 6 6967 94 5 950 955960 94 6947948949951952953954956957958959961 950946947948949959 958 957953 954 955 956957958959 96096171.2624.8%22.2% 16.2%23.4%58.88 70.74 97 0 96 9 970 70.9771.07 68.33 68.10 67.60 67.96 68.1867.48 71.17 71.07 70.4470.70 69.35 49.70 49.5026.5% 952 951 9509509519529539549559569609699 6 9 1 2 3 4 5 6 7 8 9 10 11 13 14 15 16 17 18 19 20 21 23 22 12 6.3%7. 0 %6.1%2.5%6.0%4. 3 % 4 . 8%4474.56 71.44 1 2 3 4 5 6 7 RETAINING WALL ELEVATIONS TW-69.82 BW(S)-67.82 BW(N)-67.82 TW-71.52 BW(S)-69.52 BW(N)-67.62 TW-70.86 BW(S)-68.86 BW(N)-66.81 TW-71.17 BW(S)-69.17 BW(N)-66.03 TW-70.40 BW(S)-68.40 BW(N)-64.11 TW-71.56 BW(S)-69.56 BW(N)-62.20 TW-70.91 BW(S)-68.91 BW(N)-60.59 8 9 10 11 12 13TW-70.11 BW(S)-68.11 BW(N)-60.59 TW-70.59 BW(W)-68.59 BW(E)-60.59 TW-70.30 BW(W)-68.30 BW(E)-58.30 TW-67.62 BW-58.30 TW-68.37 BW-59.00 15 16 17 18 19 20 21 TW-65.75 BW-65.75 TW-63.83 BW-57.50 TW-61.92 BW-55.20 TW-60.31 BW-51.20 TW-60.31 BW-50.93 TW-60.31 BW-50.30 TW-58.02 BW-50.30 22 TW-56.59 BW-49.20 23 TW-55.17 BW-55.17 14 TW-69.56 BW-68.73 TW-69.21 BW-63.50 70.54 70.15 70.51 70.8170.80 70.69 71.09 2.2%70.93 71.05 70.73 70.79 71.35 71.35 71.40 8 8 8 8 8 ACTIVITIES MUST BE CONDUCTED SO AS TO MINIMIZE THE POTENTIAL OF AQUATIC INVASIVE SPECIES TO THE MAXIMUM EXTENT POSSIBLE ALTERNATE C3 GRADING ASSOCIATED WITH CITY BITUMINOUS TRAIL 06-15-18 CITY SUBMITTAL © 7001 France Avenue S, Suite 200, Edina, Minnesota 55435 952-893-9020 Fax 952-893-9299 www.bdhyoung.com interiors | architecture LOUCKS 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL LOUCKS PROJECT NO. 17516NOT FOR CONSTRUCTIONFOR INFORMATION ONLY06-19-18 WATERSHED SUBMITTAL 07-12-18 WATERSHED RESUBMITTAL 07-27-18 WATERSHED RESUBMITTAL 08-02-18 CITY RESUBMITTAL N NOTE: EXISTING CONDITIONS INFORMATION SHOWN IS PROVIDED BY LOUCKS. REFER TO ALTA/NSPS LAND TITLE SURVEY DATED 05/08/18 FOR COMPLETE SURVEY INFORMATION. Gopher State One Call WARNING: THE CONTRACTOR SHALL BE RESPONSIBLE FOR CALLING FOR LOCATIONS OF ALL EXISTING UTILITIES. THEY SHALL COOPERATE WITH ALL UTILITY COMPANIES IN MAINTAINING THEIR SERVICE AND / OR RELOCATION OF LINES. THE CONTRACTOR SHALL CONTACT GOPHER STATE ONE CALL AT 651-454-0002 AT LEAST 48 HOURS IN ADVANCE FOR THE LOCATIONS OF ALL UNDERGROUND WIRES, CABLES, CONDUITS, PIPES, MANHOLES, VALVES OR OTHER BURIED STRUCTURES BEFORE DIGGING. THE CONTRACTOR SHALL REPAIR OR REPLACE THE ABOVE WHEN DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. SCALE IN FEET 300 60 73 23 CIVIL LEGEND GRADING, DRAINAGE & EROSION CONTROL NOTES 1.SPOT ELEVATIONS REPRESENT FINISHED SURFACE GRADES, GUTTER/FLOW LINE, FACE OF BUILDING, OR EDGE OF PAVEMENT UNLESS OTHERWISE NOTED. 2.GRADE THROUGH THE ADA AREAS OF THE PARKING LOT SHALL BE A MAXIMUM OF 2% SLOPE IN ANY DIRECTION. 3.CATCH BASINS AND MANHOLES IN PAVED AREAS SHALL BE SUMPED 0.04 FEET. ALL CATCH BASINS IN GUTTERS SHALL BE SUMPED 0.16 FEET. RIM ELEVATIONS SHOWN ON PLANS DO NOT REFLECT SUMPED ELEVATIONS. 4.ALL DISTURBED UNPAVED AREAS ARE TO RECEIVE MINIMUM OF 6 INCHES OF TOP SOIL AND SEED/MULCH OR SOD. THESE AREAS SHALL BE WATERED/MAINTAINED BY THE CONTRACTOR UNTIL VEGETATION IS ESTABLISHED. 5.ACTIVITIES MUST BE CONDUCTED SO AS TO MINIMIZE THE POTENTIAL OF AQUATIC INVASIVE SPECIES TO THE MAXIMUM EXTENT POSSIBLE. 6.FOR SITE RETAINING WALLS "TW" EQUALS SURFACE GRADE AT TOP FACE OF WALL (NOT TOP OF WALL), "GW" EQUALS SURFACE GRADE AT WALL GRADE TRANSITION, AND "BW" EQUALS SURFACE GRADE AT BOTTOM FACE OF WALL (NOT BOTTOM OF BURIED WALL COURSES). 7.REFER TO THE REPORT OF GEOTECHNICAL EXPLORATION AND REVIEW (REPORT NO. B1801313), DATED MARCH 13, 2018 AS PREPARED BY BRAUN INTERTEC FOR AN EXISTING SUBSURFACE SITE CONDITION ANALYSIS AND CONSTRUCTION RECOMMENDATIONS. 8.STREETS MUST BE CLEANED AND SWEPT WHENEVER TRACKING OF SEDIMENTS OCCURS AND BEFORE SITES ARE LEFT IDLE FOR WEEKENDS AND HOLIDAYS. A REGULAR SWEEPING SCHEDULE MUST BE ESTABLISHED. 9.DUST MUST BE ADEQUATELY CONTROLLED. 10.SEE SWPPP FOR ADDITIONAL EROSION CONTROL NOTES AND REQUIREMENTS. 11.SEE UTILITY PLAN FOR WATER, STORM AND SANITARY SEWER INFORMATION. 12.SEE SITE PLAN FOR CURB AND BITUMINOUS TAPER LOCATIONS. C3.1 8 8 8 88 8 8888 88844888888PROPOSED BUILDING FFE = 971.40 9749 7 2973 971968969970968969970971 968969970971971 970975 974 973 972 97 1 972973970970971971 97 2972 971971971971 972 973974969 970 971971 971 970 9 6 5 9 6 1 9 6 2 9 6 3 9 6 4 9 6 6 9 6 7968 9659629639649 6 6 9 6 7 94 5 950 955960 94 6947948949951952953954956957958959961 950946947948949959 958 957953 954 955 956957958959 96096197 0 96 9 970 952 951 9509509519529539549559569609699 6 9 448 8 8 8 8 INLET PROTECTION TYP-SEE DETAIL ROCK CONSTRUCTION ENTRANCE SEE DETAIL SILT FENCE TYP-SEE DETAIL SILT FENCE TYP-SEE DETAIL EROSION CONTROL BLANKET TYP-SEE DETAIL DOUBLE ROW SILT FENCE TYP-SEE DETAIL ROCK CONSTRUCTION ENTRANCE SEE DETAIL ACTIVITIES MUST BE CONDUCTED SO AS TO MINIMIZE THE POTENTIAL OF AQUATIC INVASIVE SPECIES TO THE MAXIMUM EXTENT POSSIBLE TREE PROTECTION FENCE TYP-SEE DETAIL PROPOSED SOIL STOCKPILE LOCATION PROPOSED SOIL STOCKPILE LOCATION TREE PROTECTION FENCE TO BE INSTALLED AT EDGE OF GRADING LIMITS ALONG TRAIL TYP-SEE DETAIL TREE PROTECTION FENCE TO BE INSTALLED AT EDGE OF GRADING LIMITS ALONG TRAIL TYP-SEE DETAIL ALTERNATE C3 EROSION CONTROL ASSOCIATED WITH CITY BITUMINOUS TRAIL 06-15-18 CITY SUBMITTAL © 7001 France Avenue S, Suite 200, Edina, Minnesota 55435 952-893-9020 Fax 952-893-9299 www.bdhyoung.com interiors | architecture LOUCKS 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL LOUCKS PROJECT NO. 17516NOT FOR CONSTRUCTIONFOR INFORMATION ONLY06-19-18 WATERSHED SUBMITTAL 07-12-18 WATERSHED RESUBMITTAL 07-27-18 WATERSHED RESUBMITTAL 08-02-18 CITY RESUBMITTAL N NOTE: EXISTING CONDITIONS INFORMATION SHOWN IS PROVIDED BY LOUCKS. REFER TO ALTA/NSPS LAND TITLE SURVEY DATED 05/08/18 FOR COMPLETE SURVEY INFORMATION. Gopher State One Call WARNING: THE CONTRACTOR SHALL BE RESPONSIBLE FOR CALLING FOR LOCATIONS OF ALL EXISTING UTILITIES. THEY SHALL COOPERATE WITH ALL UTILITY COMPANIES IN MAINTAINING THEIR SERVICE AND / OR RELOCATION OF LINES. THE CONTRACTOR SHALL CONTACT GOPHER STATE ONE CALL AT 651-454-0002 AT LEAST 48 HOURS IN ADVANCE FOR THE LOCATIONS OF ALL UNDERGROUND WIRES, CABLES, CONDUITS, PIPES, MANHOLES, VALVES OR OTHER BURIED STRUCTURES BEFORE DIGGING. THE CONTRACTOR SHALL REPAIR OR REPLACE THE ABOVE WHEN DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. SCALE IN FEET 300 60 73 23 CIVIL LEGEND C3.2 SWPPP LEGEND INLET PROTECTION SILT FENCE EXISTING DRAINAGE PATTERN PROPOSED DRAINAGE PATTERN BIO ROLLS EROSION CONTROL BLANKET ROCK CONSTRUCTION ENTRANCE 06-15-18 CITY SUBMITTAL © 7001 France Avenue S, Suite 200, Edina, Minnesota 55435 952-893-9020 Fax 952-893-9299 www.bdhyoung.com interiors | architecture LOUCKS 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL LOUCKS PROJECT NO. 17516NOT FOR CONSTRUCTIONFOR INFORMATION ONLY06-19-18 WATERSHED SUBMITTAL 07-12-18 WATERSHED RESUBMITTAL 07-27-18 WATERSHED RESUBMITTAL 08-02-18 CITY RESUBMITTAL 1.THE NATURE OF THIS PROJECT WILL CONSIST OF CONSTRUCTING A BUILDING, SURFACE PAVEMENTS, RETAINING WALLS, UNDERGROUND RETENTION & DETENTION SYSTEMS, AND UTILITIES. 2.THE INTENDED SEQUENCING OF MAJOR CONSTRUCTION ACTIVITIES ARE AS FOLLOWS: 1.INSTALL VEHICLE TRACKING BMP 2.INSTALL INLET PROTECTION 3.INSTALL SILT FENCE AROUND SITE 4.CLEAR AND GRUB SITE 5.STRIP AND STOCKPILE TOPSOIL 6.REMOVE PAVEMENTS AND UTILITIES 7.ROUGH GRADE SITE 8.IMPORT CLEAN FILL FOR REPLACEMENT AND BALANCE 9.INSTALL UTILITIES 10.INSTALL BUILDING FOUNDATIONS 11.INSTALL CURB AND GUTTER 12.INSTALL PAVEMENTS AND WALKS 13.FINAL GRADE SITE 14.REMOVE ACCUMULATED SEDIMENT FROM STORMWATER SYSTEMS 15.SEED AND MULCH 16.WHEN ALL CONSTRUCTION ACTIVITY IS COMPLETE AND THE SITE IS STABILIZED, REMOVE SILT FENCE, INLET PROTECTION, AND RESEED ANY AREAS DISTURBED BY THE REMOVAL. 3.SITE DATA: AREA OF DISTURBANCE:4.201 AC PRE-CONSTRUCTION IMPERVIOUS AREA:0.007 AC POST-CONSTRUCTION IMPERVIOUS AREA:3.163 AC GENERAL SOIL TYPE:SEE GEOTECHNICAL EVALUATION REPORT 4.THE LOCATION OF AREAS NOT TO BE DISTURBED MUST BE IDENTIFIED WITH FLAGS, STAKES, SIGNS, SILT FENCE, ETC. BEFORE CONSTRUCTION BEGINS. 5.ALL DISTURBED GROUND LEFT INACTIVE FOR SEVEN (7) OR MORE DAYS SHALL BE STABILIZED BY SEEDING OR SODDING (ONLY AVAILABLE PRIOR TO SEPTEMBER 15) OR BY MULCHING OR COVERING OR OTHER EQUIVALENT CONTROL MEASURE. 6.ON SLOPES 3:1 OR GREATER MAINTAIN SHEET FLOW AND MINIMIZE RILLS AND/OR GULLIES, SLOPE LENGTHS CAN NOT BE GREATER THAN 75 FEET. DENOTES SLOPES GREATER THAN 3:1. ALL 3:1 SLOPES TO BE STABILIZED WITH EROSION CONTROL BLANKET 7.ALL STORM DRAINS AND INLETS MUST BE PROTECTED UNTIL ALL SOURCES OF POTENTIAL DISCHARGE ARE STABILIZED. 8.TEMPORARY SOIL STOCKPILES MUST HAVE EFFECTIVE SEDIMENT CONTROL AND CAN NOT BE PLACED IN SURFACE WATERS OR STORM WATER CONVEYANCE SYSTEMS. TEMPORARY STOCKPILES WITHOUT SIGNIFICANT AMOUNT OF SILT, CLAY, OR ORGANIC COMPOUNDS ARE EXEPMT EX: CLEAN AGGREGATE STOCK PILES, DEMOLITION CONCRETE STOCKPILES, SAND STOCKPILES. 9.SEDIMENT LADEN WATER MUST BE DISCHARGED TO A SEDIMENTATION BASIN WHENEVER POSSIBLE. IF NOT POSSIBLE, IT MUST BE TREATED WITH THE APPROPRIATE BMP'S. 10.SOLID WASTE MUST BE DISPOSED OF PROPERLY AND MUST COMPLY WITH MPCA DISPOSAL REQUIREMENTS. 11.EXTERNAL WASHING OF CONSTRUCTION VEHICLES MUST BE LIMITED TO A DEFINED AREA OF THE SITE. RUNOFF MUST BE PROPERLY CONTAINED. 12.NO ENGINE DEGREASING IS ALLOWED ON SITE. 13.THE OWNER WHO SIGNS THE NPDES PERMIT APPLICATION IS A PERMITTEE AND IS RESPONSIBLE FOR COMPLIANCE WITH ALL TERMS AND CONDITIONS OF THE PERMIT. THE OPERATOR (CONTRACTOR) WHO SIGNS THE NPDES PERMIT APPLICATION IS A PERMITTEE FOR PARTS II.B., PART II.C, PART II.B-F, PART V, PART IV AND APPLICABLE CONSTRUCTION ACTIVITY REQUIREMENTS FOUND IN APPENDIX A, PART C. OF THE NPDES PERMIT AND IS JOINTLY RESPONSIBLE WITH THE OWNER FOR COMPLIANCE WITH THOSE PORTIONS OF THE PERMIT. 14.TERMINATION OF COVERAGE-PERMITTEE(S) WISHING TO TERMINATE COVERAGE MUST SUBMIT A NOTICE OF TERMINATION (NOT) TO THE MPCA. ALL PERMITTEE(S) MUST SUBMIT A NOT WITHIN 30 DAYS AFTER ONE OR MORE OF THE FOLLOWING CONDITIONS HAVE BEEN MET: A.FINAL STABILIZATION, PER NPDES PERMIT PART IV.G. HAS BEEN ACHIEVED ON ALL PORTIONS OF THE SITE FOR WHICH THE PERMITTEE IS RESPONSIBLE. B.TRANSFER OF OWNERSHIP AS DESCRIBED IN THE PERMIT. 15. INSPECTIONS A.INITIAL INSPECTION FOLLOWING SILT FENCE INSTALLATION BY CITY REPRESENTATIVE IS REQUIRED. B.EXPOSED SOIL AREAS: ONCE EVERY 7 DAYS AND WITHIN 24 HOURS FOLLOWING A 0.5" OVER 24 HOUR RAIN EVENT. C.STABILIZED AREAS: ONCE EVERY 7 DAYS D.FROZEN GROUND: AS SOON AS RUNOFF OCCURS OR PRIOR TO RESUMING CONSTRUCTION. E.INSPECTION AND MAINTENANCE RECORDS MUST BE RETAINED FOR 3 YEARS AFTER FILING OF THE NOTICE OF TERMINATION AND MUST INCLUDE: DATE AND TIME OF ACTION, NAME OF PERSON(S) CONDUCTING WORK, FINDING OF INSPECTIONS AND RECOMMENDATIONS FOR CORRECTIVE ACTION, DATE AND AMOUNT OF RAINFALL EVENTS GREATER THAN 0.5 INCHES IN A 24 HOUR PERIOD. 16. MINIMUM MAINTENANCE A.SILT FENCE TO BE REPAIRED, REPLACED, SUPPLEMENTED WHEN NONFUNCTIONAL, OR 1/3 FULL; WITHIN 24 HOURS B.SEDIMENT BASINS DRAINED AND SEDIMENT REMOVED WHEN REACHES 1/2 STORAGE VOLUME. REMOVAL MUST BE COMPLETE WITHIN 72 HOURS OF DISCOVERY. C.SEDIMENT REMOVED FROM SURFACE WATERS WITHIN (7)SEVEN DAYS D.CONSTRUCTION SITE EXITS INSPECTED, TRACKED SEDIMENT REMOVED WITH 24 HOURS. E.PROVIDE COPIES OF EROSION INSPECTION RESULTS TO CITY ENGINEER FOR ALL EVENTS GREATER THAN 12" IN 24 HOURS F.PERMITTEE MUST, AT A MINIMUM, INSPECT, MAINTAIN AND REPAIR ALL DISTURBED SURFACES AND ALL EROSION AND SEDIMENT CONTROL FACILITIES AND SOIL STABILIZATION MEASURES EVERY DAY WORK IS PERFORMED ON THE SITE AND AT LEAST WEEKLY UNTIL LAND-DISTURBING ACTIVITY HAS CEASED. THEREAFTER, THE PERMITTEE MUST PERFORM THESE RESPONSIBILITIES AT LEAST WEEKLY UNTIL VEGETATIVE COVER IS ESTABLISHED. 17.THE SWPPP, INCLUDING ALL CHANGES TO IT, AND INSPECTIONS AND MAINTENANCE RECORDS MUST BE KEPT AT THE SITE DURING CONSTRUCTION ACTIVITY BY THE PERMITTEE(S) WHO HAVE OPERATIONAL CONTROL OF THE SITE. 18.OWNER MUST KEEP RECORDS OF ALL PERMITS REQUIRED FOR THE PROJECT, THE SWPPP, ALL INSPECTIONS AND MAINTENANCE, PERMANENT OPERATION AND MAINTENANCE AGREEMENTS, AND REQUIRED CALCULATIONS FOR TEMPORARY AND PERMANENT STORM WATER MANAGEMENT SYSTEMS. THESE RECORDS MUST BE RETAINED FOR THREE YEARS AFTER FILING NPDES NOTICE OF TERMINATION. 19.SWPPP MUST BE AMENDED WHEN: A.THERE IS A CHANGE IN DESIGN, OPERATION, MAINTENANCE, WEATHER OR SEASONAL CONDITIONS THAT HAS A SIGNIFICANT EFFECT ON DISCHARGE B.INSPECTIONS INDICATE THAT THE SWPPP IS NOT EFFECTIVE AND DISCHARGE IS EXCEEDING WATER QUALITY STANDARDS. C.THE BMP'S IN THE SWPPP ARE NOT CONTROLLING POLLUTANTS IN DISCHARGES OR IS NOT CONSISTENT WITH THE TERMS AND CONDITIONS OF THE PERMIT. 19.CONCRETE WASHOUT AREA A.CONTRACTOR TO PROVIDE PREFABRICATED CONCRETE WASH-OUT CONTAINER WITH RAIN PROTECTION PER PLAN. B.CONCRETE WASH-OUT TO BE IDENTIFIED WITH SIGNAGE STATING "CONCRETE WASHOUT AREA DO NOT OVERFILL". C.CONCRETE WASHOUT WATER NEEDS TO BE PUMPED WITHIN 24 HOURS OF STANDING WATER IN WASHOUT AREA. 20.IN THE EVENT OF ENCOUNTERING A WELL OR SPRING DURING CONSTRUCTION CONTRACTOR TO CEASE CONSTRUCTION ACTIVITY AND NOTIFY ENGINEER. 21.PIPE OULTETS MUST BE PROVIDED WITH TEMPORARY OR PERMANENT ENERGY DISSIPATION WITHIN 24 HOURS AFTER CONNECTION TO A SURFACE WATER. 22.FINAL STABILIZATION FINAL STABILIZATION REQUIRES THAT ALL SOIL DISTURBING ACVTIVITIES HAVE BEEN COMPLETED AND THAT DISTURBED AREAS ARE STABILIZED BY A UNIFORM PERENNIAL VEGETATIVE COVER WITH 70% OF THE EXPECTED FINAL DENSITY, AND THAT ALL PERMANENT PAVEMENTS HAVE BEEN INSTALLED. ALL TEMPORARY BMP'S SHALL BE REMOVED, DITCHES STABILIZED, AND SEDIMENT SHALL BE REMOVED FROM PERMANENT CONVEYANCES AND SEDIMENTATION BASINS IN ORDER TO RETURN THE POND TO DESIGN CAPACITY. 23.RESPONSIBILITIES A.THE OWNER MUST IDENTIFY A PERSON WHO WILL OVERSEE THE SWPPP IMPLEMENTATION AND THE PERSON RESPONSIBLE FOR INSPECTION AND MAINTENANCE: CONTACT: __________________________________ COMPANY: __________________________________ PHONE: __________________________________ B.THE OWNER MUST IDENTIFY THE A PERSON WHO WILL BE RESPONSIBLE FOR LONG TERM OPERATIONS AND MAINTENANCE OF THE PERMANENT STORMWATER MANAGEMENT SYSTEM: CONTACT:__________________________________ COMPANY: __________________________________ PHONE: __________________________________ 24.THE WATERSHED DISTRICT OR THE CITY MAY HAVE REQUIREMENTS FOR INSPECTIONS OR AS-BUILT DRAWINGS VERIFYING PROPER CONSTRUCTION OF THE BMPS. SWPPP NOTES ESTIMATED QUANTITIES DESCRIPTION UNIT TEMPORARY ROCK CONSTRUCTION ENTRANCE EA PREFABRICATED CONCRETE WASHOUT EA SILT FENCE (STANDARD)/TREE PROTECTION LF EROSION CONTROL BLANKET SY INLET PROTECTION EA QUANTITY 2 1 2,635 2,065 17 BIO-ROLL LF NA SITE VICINITY MAP CONSTRUCTION STORMWATER SPECIAL WATERS SEARCH MAP C3.3 PROJECT SITE * EROSION CONTROL BLANKET 6" 6" 1' TO 3'ANCHOR TRENCH 1.DIG 6"X6" TRENCH 2.LAY BLANKETS IN TRENCH 3.STAPLE AT 1.5' INTERVALS 4.BACKFILL WITH NATURAL SOIL AND COMPACT. 5.BLANKET LENGTH SHALL NOT EXCEED 100' WITHOUT AN ANCHOR TRENCH NOTE: SLOPE SURFACE SHALL BE FREE OF ROCKS, SOIL CLUMPS, STICKS, VEHICLE IMPRINTS, AND GRASS. BLANKETS SHALL HAVE GOOD SOIL CONTACT. ANCHOR TRENCH (SEE DETAIL AND NOTES BELOW) OVERLAP END JOINTS MINIMUM OF 6" AND STAPLE OVERLAP AT 1.5' INTERVALS. OVERLAP LONGITUDINAL JOINTS MINIMUM OF 6" STAPLE PATTERN/DENSITY SHALL FOLLOW MANUFACTURERS SPECIFICATIONS. DI R E C T I O N O F SU R F A C E F L O W STAGGER JOINTS DRAWN 2/2016 LOUCKS PLATE NO. 3016LOUCKS 8 8 8 88 8 8888 888448888 8 8PROPOSED BUILDING FFE = 971.40 448 8 8 8 8 SANITARY SEWER SERVICE STUB INV=962.13 (VERIFY LOCATION, INVERT & SIZE W/ MECHANICAL) CORE DRILL INTO EXISTING SANITARY MANHOLE INV=957.97± (VERIFY INVERT & SIZE) 84 LF-6" PVC @ 2.00% 29 LF-6" PVC @ 2.00% SANMH 2 RIM=971.27 INV(N)=961.55 INV(W)=961.45 WET TAP EXISTING 12" DIP WATERMAIN (VERIFY TYPE & SIZE) 8" GATE VALVE 8"x8" TEE W/ 6" REDUCER TO HYDRANT 8" GATE VALVE DUAL 8" COMBINED DOMESTIC/FIRE WATER SERVICES (VERIFY LOCATION, INVERT & SIZE W/ MECHANICAL) 98 LF-8" PVC WATERMAIN 112 LF-6" PVC WATERMAIN 40 LF-8" PVC WATERMAIN HYDRANT W/ GATE VALVE 14 LF-6" PVC WATERMAIN 90 DEG. 6"X6" BEND SANMH 1 RIM=971.27 INV(E)=959.75 INV(W)=959.65 85 LF-6" PVC @ 2.00% 11.25 DEG. 8" BEND 22.5 DEG. 8" BEND 85 LF-8" PVC WATERMAIN 7 LF-8" PVC WATERMAIN STORM BOTTOM OF PIPE=968.83± WM TOP OF PIPE=966.81± DEFLECT WM AS NEEDED TO MAINTAIN 18" VERTICAL SEPARATION STORM BOTTOM OF PIPE=968.46± SANITARY TOP OF PIPE=959.00± 06-15-18 CITY SUBMITTAL © 7001 France Avenue S, Suite 200, Edina, Minnesota 55435 952-893-9020 Fax 952-893-9299 www.bdhyoung.com interiors | architecture LOUCKS 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL LOUCKS PROJECT NO. 17516NOT FOR CONSTRUCTIONFOR INFORMATION ONLY06-19-18 WATERSHED SUBMITTAL 07-12-18 WATERSHED RESUBMITTAL 07-27-18 WATERSHED RESUBMITTAL 08-02-18 CITY RESUBMITTAL N NOTE: EXISTING CONDITIONS INFORMATION SHOWN IS PROVIDED BY LOUCKS. REFER TO ALTA/NSPS LAND TITLE SURVEY DATED 05/08/18 FOR COMPLETE SURVEY INFORMATION. Gopher State One Call WARNING: THE CONTRACTOR SHALL BE RESPONSIBLE FOR CALLING FOR LOCATIONS OF ALL EXISTING UTILITIES. THEY SHALL COOPERATE WITH ALL UTILITY COMPANIES IN MAINTAINING THEIR SERVICE AND / OR RELOCATION OF LINES. THE CONTRACTOR SHALL CONTACT GOPHER STATE ONE CALL AT 651-454-0002 AT LEAST 48 HOURS IN ADVANCE FOR THE LOCATIONS OF ALL UNDERGROUND WIRES, CABLES, CONDUITS, PIPES, MANHOLES, VALVES OR OTHER BURIED STRUCTURES BEFORE DIGGING. THE CONTRACTOR SHALL REPAIR OR REPLACE THE ABOVE WHEN DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. SCALE IN FEET 300 60 73 23 CIVIL LEGEND C4.1 UTILITY NOTES 1. ALL SANITARY SEWER, STORM SEWER AND WATERMAIN UTILITIES SHALL BE FURNISHED AND INSTALLED PER THE REQUIREMENTS OF THE SPECIFICATIONS,THE MINNESOTA PLUMBING CODE, THE LOCAL GOVERNING UNIT , AND THE STANDARD UTILITIES SPECIFICATION OF THE CITY ENGINEERS ASSOCIATION OF MINNESOTA (CEAM), 2013 EDITION. 2.ALL UTILITY PIPE BEDDING SHALL BE COMPACTED SAND OR FINE GRANULAR MATERIAL. ALL COMPACTION SHALL BE PERFORMED PER THE REQUIREMENTS OF THE CEAM SPECIFICATION AND THE GEOTECHNICAL REPORT. 3.ALL CONNECTIONS TO EXISTING UTILITIES SHALL BE PERFORMED PER THE REQUIREMENTS OF THE STATE AND LOCAL JURISDICTIONS. THE CITY DEPARTMENT OF ENGINEERING AND BUILDING INSPECTIONS DEPARTMENT AND THE CONSTRUCTION ENGINEER MUST BE NOTIFIED AT LEAST 48 HOURS PRIOR TO ANY WORK WITHIN THE PUBLIC RIGHT OF WAY, OR WORK IMPACTING PUBLIC UTILITIES. 4.ALL STORM SEWER , SANITARY SEWER AND WATER SERVICES SHALL TERMINATE 5' FROM THE BUILDING FACE UNLESS OTHERWISE NOTED. 5.A MINIMUM OF 18 INCHES OF VERTICAL SEPARATION AND 10 FEET OF HORIZONTAL SEPARATION IS REQUIRED BETWEEN WATERMAIN AND ALL UTILITIES UNLESS OTHERWISE NOTED. 6.ALL NEW WATERMAIN AND SERVICES MUST HAVE A MINIMUM OF 8.0 FEET OF COVER. EXTRA DEPTH MAY BE REQUIRED TO MAINTAIN A MINIMUM 18" VERTICAL SEPARATION TO SANITARY OR STORM SEWER LINES. THE CONTRACTOR SHALL FIELD ADJUST WATERMAIN TO AVOID CONFLICTS WITH SANITARY SEWER, STORM SEWER, AND SERVICES AS REQUIRED. INSULATION OF WATER AND SANITARY SEWER LINES SHALL BE PROVIDED WHERE 8.0 FEET MINIMUM DEPTH CAN NOT BE ATTAINED. 7.ALL FIRE HYDRANTS SHALL BE LOCATED 5 FEET BEHIND BACK OF CURB OR EDGE OF PAVEMENT UNLESS OTHERWISE NOTED. 8.PROPOSED PIPE MATERIALS: WATERMAIN C900 PVC 6" TO 8" DIAMETER SANITARY SEWER PVC SCH 40 6" DIAMETER STORM SEWER DUAL WALL HDPE 12" TO 18" DIAMETER PERFORATED PVC 4" TO 6" DIAMETER 9.ALL SANITARY SEWER WYES, TEES AND SERVICES SHALL BE 6" PVC SCH 40. 10.CONTRACTOR TO SUBMIT SHOP DRAWINGS OF UNDERGROUND DETENTION SYSTEM FOR ENGINEER'S REVIEW. 11.ALL PORTIONS OF THE STORM SEWER SYSTEM, INCLUDING CATCH BASINS, LOCATED WITHIN 10 FEET OF THE BUILDING OR WATER SERVICE LINE MUST BE TESTED ACCORDANCE WITH MINNESOTA RULES, PART 4714.0712 12.ALL JOINTS AND CONNECTIONS IN THE STORM SEWER SYSTEM SHALL BE GASTIGHT OR WATERTIGHT (SEE MINNESOTA RULES, PART 4714.0705). APPROVED RESILIENT RUBBER JOINTS MUST BE USED TO MAKE WATERTIGHT CONNECTIONS TO MANHOLES, CATCHBASINS, AND OTHER STRUCTURES. 13.HIGH-DENSITY POLYETHYLENE (HDPE) STORM DRAINS MUST COMPLY WITH MINNESOTA RULES, PART 4714.0701: a.PIPES 4-INCH TO 10-INCH IN SIZE MUST COMPLY WITH AASHTO M252. b.PIPES 12-INCH TO 60-INCH IN SIZE MUST COMPLY WITH ASTM F2306. c.ALL FITTINGS MUST COMPLY WITH ASTM D3212. d.WATER-TIGHT JOINTS MUST BE USED AT ALL CONNECTIONS INCLUDING STRUCTURES. 8 8 8 88 8 8888 888448888 8 8PROPOSED BUILDING FFE = 971.40 448 8 8 8 8 CB 10 RIM=969.16 INV=965.66 SUMP=962.66 CB 20 RIM=968.70 INV=965.20 SUMP=962.20 CB 30 RIM=968.02 INV=964.52 SUMP=961.52 CBMH 40 RIM=968.44 INV=964.94 SUMP=961.94 CB 50 RIM=969.58 INV=965.27 SUMP=962.27 STMH 60 RIM=971.02 INV=963.70 SUMP=960.70 CBMH 71 RIM=970.15 INV=963.81CBMH 81 RIM=969.49 INV=963.91 CB 93 RIM=971.00 INV=968.00 CBMH 92 RIM=970.45 INV=967.34 CBMH 101 RIM=970.39 INV=966.02 CBMH 100 RIM=970.50 INV(SE)=965.25 INV(W)=960.85 SUMP=957.85 CB 110 RIM=970.13 INV=960.85 SUMP=957.85 CB 110 RIM=969.00 INV=960.76 SUMP=957.76 32 LF-12" HDPE @ 1.94% 32 LF-12" HDPE @2.00%32 LF-12" HDPE @ 2.00% INLET INV=965.04 INLET INV=964.56 INLET INV=963.88 12" ROOF DRAIN STUB INV=965.36 (VERIFY SIZE, INVERT & LOCATION W/ MECHANICAL) DET 1 72" CSP UNDERGROUND DETENTION SYSTEM (665 LF TOTAL) TOP OF PIPE=966.04 OUTLET=960.04 INV=960.04 INLET INV=964.66 14 LF-12" HDPE @ 2.00% INLET INV=965.04 5 LF-12" HDPE @ 4.50% 33 LF-12" HDPE @ 2.00% 66 LF-12" HDPE @ 2.00% 17 LF-12" HDPE @ 4.50% 6 LF-12" HDPE @ 4.50% INLET INV=960.58 6 LF-12" HDPE @ 4.50% INLET INV=960.58 INLET INV=959.97 92 LF-12" HDPE @ 0.50% TRENCH DRAIN 61 NEENAH R-4999-CX BOLTED RIM=967.16 INV=966.16 OUT=964.16 30 LF-12" HDPE @ 0.50% INLET INV=963.55 TRENCH DRAIN 72 NEENAH R-4999-CX BOLTED RIM=967.20 INV=966.20 OUT=964.20 79 LF-12" HDPE @ 0.50% 30 LF-12" HDPE @ 0.50% 57 LF-12" HDPE @ 0.50% TRENCH DRAIN 82 NEENAH R-4999-CX BOLTED RIM=967.20 INV=966.20 OUT=964.20 76 LF-18" HDPE @ 0.50% OUTLET INV=960.04 OCS MH 1 RIM=970.52 WEIR=965.86 12"X12" ORIFICE=963.03 6"X6" ORIFICE=960.57 INV=960.01 98 LF-15" HDPE @ 1.11% 7 LF-12" HDPE @ 0.50% 7 LF-12" HDPE @ 0.50% 25 LF-4" PVC DRAINTILE SLOPE TO DRAIN TYP-SEE DETAIL 25 LF-4" PVC DRAINTILE SLOPE TO DRAIN TYP-SEE DETAIL 36" ACCESS RISER RIM=971.09 INV=960.04 36" ACCESS RISER RIM=968.83 INV=960.04 36" ACCESS RISER RIM=969.05 INV=960.04 36" ACCESS RISER RIM=970.34 INV=958.17 36" ACCESS RISER RIM=970.08 INV=960.04 25 LF-4" PVC DRAINTILE SLOPE TO DRAIN TYP-SEE DETAIL 25 LF-4" PVC DRAINTILE SLOPE TO DRAIN TYP-SEE DETAIL INFIL 1 53"x41" PERFORATED ARCH CSP UNDERGROUND INFILTRATION SYSTEM (1,350 LF TOTAL) TOP OF PIPE=961.58 OUTLET=959.97 INV=958.17 CONTRACTOR SHALL EXCAVATE DOWN TO NATIVE SOILS CLASSIFIED AS POORLY GRADED SAND W/ SILT OR SILTY SAND (SP-SM, SM) ESTIMATED TO BE AT AN ELEVATION OF 961± ON THE SOUTH SIDE OF THE SYSTEM AND 951± ON THE NORTH SIDE OF THE SYSTEM. CONTRACTOR TO BACKFILL WITH FREE DRAINING GRANULAR MATERIALS (100% PASSING 3-INCH SIEVE AND 0-20% PASSING NO. 200 SIEVE) UP TO THE BOTTOM OF THE SYSTEM. 36" ACCESS RISER RIM=970.81 INV=958.17 36" ACCESS RISER RIM=970.84 INV=958.17 36" ACCESS RISER RIM=970.40 INV=958.17 OUTLET INV=959.97 36" ACCESS RISER RIM=969.83 INV=958.17 INLET INV=960.58 4 LF-12" HDPE @ 4.50% 36" ACCESS RISER RIM=971.52 INV=958.17 INLET INV=961.93 37 LF-18" HDPE @ 0.50% STMH 70 RIM=970.89 INV(N)=963.65 INV(W,E)=962.11 SUMP=959.11 INLET INV=965.04 32 LF-12" HDPE @ 1.00% FES 1 W/ TRASH GUARD AND GROUTED RIP-RAP INV=958.88 12" ROOF DRAIN STUB INV=964.40 (VERIFY SIZE, INVERT & LOCATION W/ MECHANICAL) 27 LF-12" HDPE @ 1.00%STMH 91 RIM=971.07 INV=964.13 92 LF-12" HDPE @ 1.00% 22 LF-12" HDPE @ 1.00% STMH 80 RIM=970.41 INV(N)=963.77 INV(NW)=962.99 INV(E)=962.49 28 LF-12" HDPE @ 0.50% STMH 90 RIM=970.32 INV=963.21 06-15-18 CITY SUBMITTAL © 7001 France Avenue S, Suite 200, Edina, Minnesota 55435 952-893-9020 Fax 952-893-9299 www.bdhyoung.com interiors | architecture LOUCKS 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL LOUCKS PROJECT NO. 17516NOT FOR CONSTRUCTIONFOR INFORMATION ONLY06-19-18 WATERSHED SUBMITTAL 07-12-18 WATERSHED RESUBMITTAL 07-27-18 WATERSHED RESUBMITTAL 08-02-18 CITY RESUBMITTAL N NOTE: EXISTING CONDITIONS INFORMATION SHOWN IS PROVIDED BY LOUCKS. REFER TO ALTA/NSPS LAND TITLE SURVEY DATED 05/08/18 FOR COMPLETE SURVEY INFORMATION. Gopher State One Call WARNING: THE CONTRACTOR SHALL BE RESPONSIBLE FOR CALLING FOR LOCATIONS OF ALL EXISTING UTILITIES. THEY SHALL COOPERATE WITH ALL UTILITY COMPANIES IN MAINTAINING THEIR SERVICE AND / OR RELOCATION OF LINES. THE CONTRACTOR SHALL CONTACT GOPHER STATE ONE CALL AT 651-454-0002 AT LEAST 48 HOURS IN ADVANCE FOR THE LOCATIONS OF ALL UNDERGROUND WIRES, CABLES, CONDUITS, PIPES, MANHOLES, VALVES OR OTHER BURIED STRUCTURES BEFORE DIGGING. THE CONTRACTOR SHALL REPAIR OR REPLACE THE ABOVE WHEN DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. SCALE IN FEET 300 60 73 23 CIVIL LEGEND C4.2 UTILITY NOTES 1. ALL SANITARY SEWER, STORM SEWER AND WATERMAIN UTILITIES SHALL BE FURNISHED AND INSTALLED PER THE REQUIREMENTS OF THE SPECIFICATIONS,THE MINNESOTA PLUMBING CODE, THE LOCAL GOVERNING UNIT , AND THE STANDARD UTILITIES SPECIFICATION OF THE CITY ENGINEERS ASSOCIATION OF MINNESOTA (CEAM), 2013 EDITION. 2.ALL UTILITY PIPE BEDDING SHALL BE COMPACTED SAND OR FINE GRANULAR MATERIAL. ALL COMPACTION SHALL BE PERFORMED PER THE REQUIREMENTS OF THE CEAM SPECIFICATION AND THE GEOTECHNICAL REPORT. 3.ALL CONNECTIONS TO EXISTING UTILITIES SHALL BE PERFORMED PER THE REQUIREMENTS OF THE STATE AND LOCAL JURISDICTIONS. THE CITY DEPARTMENT OF ENGINEERING AND BUILDING INSPECTIONS DEPARTMENT AND THE CONSTRUCTION ENGINEER MUST BE NOTIFIED AT LEAST 48 HOURS PRIOR TO ANY WORK WITHIN THE PUBLIC RIGHT OF WAY, OR WORK IMPACTING PUBLIC UTILITIES. 4.ALL STORM SEWER , SANITARY SEWER AND WATER SERVICES SHALL TERMINATE 5' FROM THE BUILDING FACE UNLESS OTHERWISE NOTED. 5.A MINIMUM OF 18 INCHES OF VERTICAL SEPARATION AND 10 FEET OF HORIZONTAL SEPARATION IS REQUIRED BETWEEN WATERMAIN AND ALL UTILITIES UNLESS OTHERWISE NOTED. 6.ALL NEW WATERMAIN AND SERVICES MUST HAVE A MINIMUM OF 8.0 FEET OF COVER. EXTRA DEPTH MAY BE REQUIRED TO MAINTAIN A MINIMUM 18" VERTICAL SEPARATION TO SANITARY OR STORM SEWER LINES. THE CONTRACTOR SHALL FIELD ADJUST WATERMAIN TO AVOID CONFLICTS WITH SANITARY SEWER, STORM SEWER, AND SERVICES AS REQUIRED. INSULATION OF WATER AND SANITARY SEWER LINES SHALL BE PROVIDED WHERE 8.0 FEET MINIMUM DEPTH CAN NOT BE ATTAINED. 7.ALL FIRE HYDRANTS SHALL BE LOCATED 5 FEET BEHIND BACK OF CURB OR EDGE OF PAVEMENT UNLESS OTHERWISE NOTED. 8.PROPOSED PIPE MATERIALS: WATERMAIN C900 PVC 6" TO 8" DIAMETER SANITARY SEWER PVC SCH 40 6" DIAMETER STORM SEWER DUAL WALL HDPE 12" TO 18" DIAMETER PERFORATED PVC 4" TO 6" DIAMETER 9.ALL SANITARY SEWER WYES, TEES AND SERVICES SHALL BE 6" PVC SCH 40. 10.CONTRACTOR TO SUBMIT SHOP DRAWINGS OF UNDERGROUND DETENTION SYSTEM FOR ENGINEER'S REVIEW. 11.ALL PORTIONS OF THE STORM SEWER SYSTEM, INCLUDING CATCH BASINS, LOCATED WITHIN 10 FEET OF THE BUILDING OR WATER SERVICE LINE MUST BE TESTED ACCORDANCE WITH MINNESOTA RULES, PART 4714.0712 12.ALL JOINTS AND CONNECTIONS IN THE STORM SEWER SYSTEM SHALL BE GASTIGHT OR WATERTIGHT (SEE MINNESOTA RULES, PART 4714.0705). APPROVED RESILIENT RUBBER JOINTS MUST BE USED TO MAKE WATERTIGHT CONNECTIONS TO MANHOLES, CATCHBASINS, AND OTHER STRUCTURES. 13.HIGH-DENSITY POLYETHYLENE (HDPE) STORM DRAINS MUST COMPLY WITH MINNESOTA RULES, PART 4714.0701: a.PIPES 4-INCH TO 10-INCH IN SIZE MUST COMPLY WITH AASHTO M252. b.PIPES 12-INCH TO 60-INCH IN SIZE MUST COMPLY WITH ASTM F2306. c.ALL FITTINGS MUST COMPLY WITH ASTM D3212. d.WATER-TIGHT JOINTS MUST BE USED AT ALL CONNECTIONS INCLUDING STRUCTURES. 8 8 8 88 8 8888 888448888 8 8PROPOSED BUILDING FFE = 971.40 448 8 8 8 8 COORDINATE WITH MECHANICAL FOR INTERIOR DRAIN TILE CONNECTIONS TO EXTERIOR DRAIN TILE SYSTEM CONNECT TO UNDERGROUND DETENTION SYSTEM ABOVE INV=960.04 35 LF-6" SOLID PVC SLOPED TO DRAIN 635 LF-6" PERFORATED PVC DRAINTILE 778 LF-6" PERFORATED PVC DRAINTILE 06-15-18 CITY SUBMITTAL © 7001 France Avenue S, Suite 200, Edina, Minnesota 55435 952-893-9020 Fax 952-893-9299 www.bdhyoung.com interiors | architecture LOUCKS 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL LOUCKS PROJECT NO. 17516NOT FOR CONSTRUCTIONFOR INFORMATION ONLY06-19-18 WATERSHED SUBMITTAL 07-12-18 WATERSHED RESUBMITTAL 07-27-18 WATERSHED RESUBMITTAL 08-02-18 CITY RESUBMITTAL N NOTE: EXISTING CONDITIONS INFORMATION SHOWN IS PROVIDED BY LOUCKS. REFER TO ALTA/NSPS LAND TITLE SURVEY DATED 05/08/18 FOR COMPLETE SURVEY INFORMATION. Gopher State One Call WARNING: THE CONTRACTOR SHALL BE RESPONSIBLE FOR CALLING FOR LOCATIONS OF ALL EXISTING UTILITIES. THEY SHALL COOPERATE WITH ALL UTILITY COMPANIES IN MAINTAINING THEIR SERVICE AND / OR RELOCATION OF LINES. THE CONTRACTOR SHALL CONTACT GOPHER STATE ONE CALL AT 651-454-0002 AT LEAST 48 HOURS IN ADVANCE FOR THE LOCATIONS OF ALL UNDERGROUND WIRES, CABLES, CONDUITS, PIPES, MANHOLES, VALVES OR OTHER BURIED STRUCTURES BEFORE DIGGING. THE CONTRACTOR SHALL REPAIR OR REPLACE THE ABOVE WHEN DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. SCALE IN FEET 300 60 73 23 CIVIL LEGEND C4.2 UTILITY NOTES 1. ALL SANITARY SEWER, STORM SEWER AND WATERMAIN UTILITIES SHALL BE FURNISHED AND INSTALLED PER THE REQUIREMENTS OF THE SPECIFICATIONS,THE MINNESOTA PLUMBING CODE, THE LOCAL GOVERNING UNIT , AND THE STANDARD UTILITIES SPECIFICATION OF THE CITY ENGINEERS ASSOCIATION OF MINNESOTA (CEAM), 2013 EDITION. 2.ALL UTILITY PIPE BEDDING SHALL BE COMPACTED SAND OR FINE GRANULAR MATERIAL. ALL COMPACTION SHALL BE PERFORMED PER THE REQUIREMENTS OF THE CEAM SPECIFICATION AND THE GEOTECHNICAL REPORT. 3.ALL CONNECTIONS TO EXISTING UTILITIES SHALL BE PERFORMED PER THE REQUIREMENTS OF THE STATE AND LOCAL JURISDICTIONS. THE CITY DEPARTMENT OF ENGINEERING AND BUILDING INSPECTIONS DEPARTMENT AND THE CONSTRUCTION ENGINEER MUST BE NOTIFIED AT LEAST 48 HOURS PRIOR TO ANY WORK WITHIN THE PUBLIC RIGHT OF WAY, OR WORK IMPACTING PUBLIC UTILITIES. 4.ALL STORM SEWER , SANITARY SEWER AND WATER SERVICES SHALL TERMINATE 5' FROM THE BUILDING FACE UNLESS OTHERWISE NOTED. 5.A MINIMUM OF 18 INCHES OF VERTICAL SEPARATION AND 10 FEET OF HORIZONTAL SEPARATION IS REQUIRED BETWEEN WATERMAIN AND ALL UTILITIES UNLESS OTHERWISE NOTED. 6.ALL NEW WATERMAIN AND SERVICES MUST HAVE A MINIMUM OF 8.0 FEET OF COVER. EXTRA DEPTH MAY BE REQUIRED TO MAINTAIN A MINIMUM 18" VERTICAL SEPARATION TO SANITARY OR STORM SEWER LINES. THE CONTRACTOR SHALL FIELD ADJUST WATERMAIN TO AVOID CONFLICTS WITH SANITARY SEWER, STORM SEWER, AND SERVICES AS REQUIRED. INSULATION OF WATER AND SANITARY SEWER LINES SHALL BE PROVIDED WHERE 8.0 FEET MINIMUM DEPTH CAN NOT BE ATTAINED. 7.ALL FIRE HYDRANTS SHALL BE LOCATED 5 FEET BEHIND BACK OF CURB OR EDGE OF PAVEMENT UNLESS OTHERWISE NOTED. 8.PROPOSED PIPE MATERIALS: WATERMAIN C900 PVC 6" TO 8" DIAMETER SANITARY SEWER PVC SCH 40 6" DIAMETER STORM SEWER DUAL WALL HDPE 12" TO 15" DIAMETER PERFORATED PVC 4" TO 6" DIAMETER 9.ALL SANITARY SEWER WYES, TEES AND SERVICES SHALL BE 6" PVC SCH 40. 10.CONTRACTOR TO SUBMIT SHOP DRAWINGS OF UNDERGROUND DETENTION SYSTEM FOR ENGINEER'S REVIEW. 11.ALL PORTIONS OF THE STORM SEWER SYSTEM, INCLUDING CATCH BASINS, LOCATED WITHIN 10 FEET OF THE BUILDING OR WATER SERVICE LINE MUST BE TESTED ACCORDANCE WITH MINNESOTA RULES, PART 4714.0712 12.ALL JOINTS AND CONNECTIONS IN THE STORM SEWER SYSTEM SHALL BE GASTIGHT OR WATERTIGHT (SEE MINNESOTA RULES, PART 4714.0705). APPROVED RESILIENT RUBBER JOINTS MUST BE USED TO MAKE WATERTIGHT CONNECTIONS TO MANHOLES, CATCHBASINS, AND OTHER STRUCTURES. 13.HIGH-DENSITY POLYETHYLENE (HDPE) STORM DRAINS MUST COMPLY WITH MINNESOTA RULES, PART 4714.0701: a.PIPES 4-INCH TO 10-INCH IN SIZE MUST COMPLY WITH AASHTO M252. b.PIPES 12-INCH TO 60-INCH IN SIZE MUST COMPLY WITH ASTM F2306. c.ALL FITTINGS MUST COMPLY WITH ASTM D3212. d.WATER-TIGHT JOINTS MUST BE USED AT ALL CONNECTIONS INCLUDING STRUCTURES. DRAWN 3/2018 LOUCKS PLATE NO. EXTERIOR FOUNDATION DRAINTILE DETAIL NOT TO SCALE NOTE: SEE MECHANICAL DRAWINGS FOR FOUNDATION DRAINTILE ON INTERIOR OF BUILDING. PIPE DETAIL 160 90 1 4" DIA. HOLE TYPICAL TRENCH DETAIL 2" MIN. 2" MIN.6" MIN. FINISHED FLOOR ELEVATION APPROVED FREE DRAINING BACKFILL MATERIAL (SEE SPECS) COARSE FILTER AGGREGATE MNDOT 3149.2H NON-WOVEN GEOTEXTILE FABRIC FOUNDATION (SEE STRUCTURAL)6" PERFORATED PVC PIPE 06-15-18 CITY SUBMITTAL © 7001 France Avenue S, Suite 200, Edina, Minnesota 55435 952-893-9020 Fax 952-893-9299 www.bdhyoung.com interiors | architecture LOUCKS 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL LOUCKS PROJECT NO. 17516NOT FOR CONSTRUCTIONFOR INFORMATION ONLY06-19-18 WATERSHED SUBMITTAL 07-12-18 WATERSHED RESUBMITTAL 07-27-18 WATERSHED RESUBMITTAL 08-02-18 CITY RESUBMITTAL C8.1 06-15-18 CITY SUBMITTAL © 7001 France Avenue S, Suite 200, Edina, Minnesota 55435 952-893-9020 Fax 952-893-9299 www.bdhyoung.com interiors | architecture LOUCKS 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL LOUCKS PROJECT NO. 17516NOT FOR CONSTRUCTIONFOR INFORMATION ONLY06-19-18 WATERSHED SUBMITTAL 07-12-18 WATERSHED RESUBMITTAL 07-27-18 WATERSHED RESUBMITTAL 08-02-18 CITY RESUBMITTAL C8.2 VAN ACCESSIBLE 60"48"18" DIA.36"TYPICAL ADA PARKING SIGN / BOLLARD COMBO 12"x18" STANDARD HANDICAP PARKING SIGN WITH SEPARATE 'VAN ACCESSIBLE' PANEL. GREEN LETTERING AND BORDER ON WHITE BACKGROUND. SYMBOL OF ACCESSIBILITY SHALL BE 4"x4" AND BE WHITE ON A BLUE BACKGROUND. USE HARDWARE PER SIGN SUPPLIER'S RECOMMENDATIONS. HC SIGNAGE PER MINNESOTA RULES 1341.0502 12"x6" STANDARD 'VAN ACCESSIBLE' PANEL. GREEN LETTERING AND BORDER ON WHITE BACKGROUND. 2" DIA. 6' LONG MIN. GALVANIZED SCHEDULE 40 STEEL PIPE. EMBED IN CONCRETE FILLED BOLLARD 6" DIA. SCHEDULE 40 GALVENZIED STEEL PIPE 6' LONG MINIMUM HEAVY DUTY HDPE DOME TOP DECORATIVE SLEEVE BLUE OR YELLOW IN COLOR. AVAILABLE FROM BOLLARDSNSLEEVES.COM OR EQUAL. COMPACTED OR UNDISTURBED SUBGRADE. NOTES: 1.BOLLARDS TO BE PLACED 12" BEHIND BACK OF CURB OR SIDEWALK (REFER TO SITE PLAN.) 2.MAINTAIN PLUMB UNTIL CONCRETE IS SUFFICIENTLY CURED. 3.HOLD CONCRETE FOOTING BELOW GRADE OF FINISHED CONCRETE TO CREATE FINAL PAVING PATTERN AS SHOWN ON PLANS. 4.SIGN CENTERED AT HEAD OF PARKING SPACE - MAXIMUM OF 96" FROM HEAD OF PARKING SPACE. DRAWN 03/2017 LOUCKS PLATE NO. 2038ALOUCKS6"18"6"VIOLATORS ARE SUBJECT TO A FINE OF UP TO $ 200.00 PARKINGRESERVED TYPICAL ADA PARKING STALL STRIPING DRAWN 03/2017 LOUCKS PLATE NO. 2037LOUCKS LCC 4" WIDE PAINTED LINES, TRAFFIC WHITE 4" WIDE PAINTED LINES, 18" O.C., @ 45 DEG. TRAFFIC WHITE (AISLE TO CONTAIN THE DESIGNATION "NO PARKING" COMPLYING WITH MSBC 1341.0502 IF ACCESS AISLE SIGNS ARE NOT SHOWN REFER TO SITE PLAN FOR ADA PARKING SIGN LOCATION REFER TO SITE PLAN FOR ACCESS AISLE SIGN LOCATION (AISLE TO CONTAIN THE DESIGNATION "NO PARKING" COMPLYING WITH MSBC 134.0502 IF ACCESS AISLE SIGNS ARE NOT SHOWN) REFER TO SITE PLAN FOR STALL DIMENSIONS 40"PROVIDE PAINTED INTERNATIONAL SYMBOL OF ACCESSIBILITY AT EACH DESIGNATED HANDICAP PARKING STALL. CENTER SYMBOL IN STALL. HC SIGNAGE PER MINNESOTA RULES 1341.0502 ALL LINES 4" WIDE 8" DIAMETER NOT TO SCALE 67.5 5 36" TYPICAL ADA ACCESS AISLE NO PARKING SIGN / BOLLARD COMBO "NO PARKING" DRAWN 12/2016 LOUCKS PLATE NO. LOUCKS60"48"18" DIA.36"ATTACH SIGN TO POST WITH APPROPRIATE STAINLESS STEEL BOLTS, WASHES & NUTS. (TYP. AT TOP & BOTTOM OF SIGN) 2" DIA. 6' LONG MIN. GALVANIZED SCHEDULE 40 STEEL PIPE. EMBED IN CONCRETE FILLED BOLLARD 6" DIA. SCHEDULE 40 GALVENZIED STEEL PIPE 6' LONG MINIMUM HEAVY DUTY HDPE DOME TOP DECORATIVE SLEEVE BLUE OR YELLOW IN COLOR. AVAILABLE FROM BOLLARDSNSLEEVES.COM OR EQUAL. COMPACTED OR UNDISTURBED SUBGRADE. NOTES: 1.BOLLARDS TO BE PLACED 12" BEHIND BACK OF CURB OR SIDEWALK (REFER TO SITE PLAN.) 2.MAINTAIN PLUMB UNTIL CONCRETE IS SUFFICIENTLY CURED. 3.HOLD CONCRETE FOOTING BELOW GRADE OF FINISHED CONCRETE TO CREATE FINAL PAVING PATTERN AS SHOWN ON PLANS. 4.SIGN CENTERED AT HEAD OF PARKING SPACE - MAXIMUM OF 96" FROM HEAD OF PARKING SPACE. 5.PROVIDE (1) SIGN PER ACCESS AISLE 6.HC SIGNAGE PER MINNESOTA RULES 1341.05026"18"R28"R68" R12" 12" 28"3/4"7"10.5"SURMOUNTABLE CURB & GUTTER SPECIFICATION NOTES: 1.UPON COMPLETION, CURBING SHOULD BE SPRAYED WITH A MEMBRANE CURING COMPOUND PER MNDOT 3754. 2.EXPANSION JOINTS AT MAX. SPACING OF 200'. 3.CONSTRUCT IN ACCORDANCE WITH MNDOT 2531. PAVEMENT SECTION VARIES MIN. OF 4"MINIMUM 1' BEHIND BACK OF CURBAGG. BASE UNDER CURB (IF TOTAL THICKNESS OF SECTION ALLOWS) AGG. BASE VARIES 6.5"DRAWN 2/2016 LOUCKS PLATE NO. 2014LOUCKS SLOPE GUTTER TO MATCH PARKING LOT DRAINAGE (3/4" PER FT. TYP.) TIP GUTTER OUT AS REQ'D PAVEMENT SECTION VARIES MIN. OF 4" 3/8 " LIP MINIMUM 1' BEHIND BACK OF CURBAGG. BASE UNDER CURB (IF TOTAL THICKNESS OF SECTION ALLOWS) 7" 12"8" AGG. BASE VARIES 1/2" RAD. 20" FLAT CURB AND GUTTER (12") SPECIFICATION NOTES: 1.UPON COMPLETION, CURBING SHOULD BE SPRAYED WITH A MEMBRANE CURING COMPOUND PER MNDOT 3754. 2.EXPANSION JOINTS AT MAX. SPACING OF 200'. 3.CONSTRUCT IN ACCORDANCE WITH MNDOT 2531. DRAWN 2/2016 LOUCKS PLATE NO. 2012LOUCKS BOLLARD 1/2" CROWN 1" CROWN 3'-6"3'-0"6"24" DIA. 2,500 PSI CONCRETE 6" DIP, CONC. FILLED, PAINTED OSHA YELLOW DRAWN 12/2016 LOUCKS PLATE NO. 2039LOUCKS 06-15-18 CITY SUBMITTAL © 7001 France Avenue S, Suite 200, Edina, Minnesota 55435 952-893-9020 Fax 952-893-9299 www.bdhyoung.com interiors | architecture LOUCKS 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL LOUCKS PROJECT NO. 17516NOT FOR CONSTRUCTIONFOR INFORMATION ONLY06-19-18 WATERSHED SUBMITTAL 07-12-18 WATERSHED RESUBMITTAL 07-27-18 WATERSHED RESUBMITTAL 08-02-18 CITY RESUBMITTAL C8.3 OUTLET 48" TO 72" DOGHOUSES SHALL BE GROUTED BOTH ON THE INSIDE AND OUTSIDE OF THE STRUCTURE. PRECAST MANHOLE SECTIONS C OUTLET ELEVATION PIPE SIZE WILL VARY OUTLET CONTROL STRUCTURE - WEIR/ORIFICE INLET PRECAST BASE SLAB INLET ELEVATION A B 1 960.04 OUTLET CONTROL STRUCTURE ELEVATION TABLE OCS NO.A 6" E TOP OF WEIR ELEVATION WEIR TO BE REINFORCED WITH AT LEAST #4 REBAR, 12" ON CENTER. WEIR/ORIFICE E TOP OF WEIR ELEVATION H DRAWN 2/2016 LOUCKS PLATE NO. 4318LOUCKS RIM - (EMERGENCY OVERFLOW) D 2" 0"-8" 2" ORIFICE OPENING SIZE - F INVERT ELEVATION - G 960.00 B 960.00 C 970.52 D 965.98 E F G 7.5x7.5 H 960.00 48" ORIFICE OPENING SIZE - F INVERT ELEVATION - G1'-4"VARIABLE6"3"6"4.0' OUTLET FLOW 3'MIN.2" 0"-8" 2" NYLOPLAST SNOUT STRUCTURE OR APPROVED EQUAL. CONCRETE ADJUSTING RINGS, MIN. 4" - MAX. 10" NOTE: 24"x36" SLAB OPENING FOR NEENAH R-3067 CASTING WITH D.L., D.R. OR TYPE V GRATE. 27" ɸ SLAB OPENING FOR NEENAH R-3250 & R-1733 CASTING. SUMP CATCH BASIN / MANHOLE MINIMUM SLAB THICKNESS IS 6" FOR 14' DEPTH. INCREASE THICKNESS 1" FOR 4' OF DEPTH GREATER THAN 14'. PRECAST CONCRETE MANHOLE SECTIONS WITH "O"-RING RUBBER GASKETS. SLAB TOP TO BE SET IN A MORTAR BED. 6" PRECAST REINFORCED CONCRETE SLAB. STEPS 16" O.C. ON DOWNSTREAM SIDE. EXTRUDED ALUMINUM OR STEEL REINFORCED COPOLYMER PLASTIC.6"DRAWN 2/2016 LOUCKS PLATE NO. 4304LOUCKS SECTION A-A PLAN SECTION B-B DIA. 2' 2'1 4 LDIA.B B AA RIPRAP 48 15 42 36 30 24 18 12 20 8 10 12 14 18 16 8 >48 22-28 30-40 26 5 6 8 12 22 14 5 IV IV III III III III IV III III MINIMUM RIPRAP REQUIRED GEOTEXTILE FABRIC, TYPE IV EXTEND 1' UNDER APRON RIP-RAP OUT FROM THE APRON SHALL NOT BE HIGHER THAN THE APRON INVERT. GROUTED RIPRAP 1' (12"-27" DIA. PIPE) 1.5' (30" AND LARGER PIPE) GEOTEXTILE FABRIC, TYPE IV NOTE: ONE CUBIC YARD IS APPROXIMATELY 1.4 TONS. RIPRAP 1' (12"-27" DIA. PIPE) 1.5' (30" AND LARGER PIPE) 6" GRANULAR FILTER MATERIAL 32-40 32 5 7 10 13 27 17 5 CMP/HDPE QUANTITY (C.Y.) RCP QUANTITY (C.Y.) DIA. OF PIPE (IN.)L (FT.)CLASS 6" GRANULAR FILTER MATERIAL GROUT GROUT DRAWN 2/2016 LOUCKS PLATE NO. 4309LOUCKS 957.67 958.17 962.08 961.58 FREE DRAINING ANGULAR WASHED STONE NON LIMESTONE/CARBONATE MATERIAL 5/8" MIN. PARTICLE SIZE. THE MAXIMUM LOS ANGELES RATTLER LOSS SHOULD BE 35% PER AASHTO T-96 AND NO GREATER LOSS THAN 10% PER AASHTO T-104 MAGNESIUM SULFATE SOUNDNESS TEST ON THE NON-IGNEOUS PORTIONS AND AS MODIFIED BY THE MNDOT LABORATORY MANUAL (MNDOT 2005) COMPACT TO MIN. 90% STANDARD DENSITY PER AASHTO T-99 PLACED IN LIFTS OF 4-6" INSTALL CMP PIPE PER ASSHTO M-36, AASHTO SECTION 12 OR HDPE PER ASTM D2321 (CONTRACTOR TO PROVIDE SHOP DRAWINGS FOR REVIEW) UNDERGROUND INFILTRATION SYSTEM (INF 1) SCALE: N/A GRANULAR BEDDING, ROUGHLY SHAPED TO FIT THE BOTTOM OF PIPE, 6" IN DEPTH. NON-WOVEN GEOTEXTILE FABRIC WRAPPING SIDES OF TRENCH & PIPE. 2" BIT. WEAR COURSE, MN/DOT 2360 SPWEA240B TACK COAT, MN/DOT 2357 2" BIT. NON-WEAR COURSE, MN/DOT 2360 SPNWB230B 6" AGG. BASE, CLASS 5 OR 2 MN/DOT 3138 APPROVED SUBGRADE FINISHED GRADE 12" SELECT GRANULAR, MN/DOT 3149.D STANDARD BITUMINOUS PAVEMENT SECTION GEOTEXTILE FILTER FABRIC TYPE V, MN/DOT 3733.2 DRAWN 12/2016 LOUCKS PLATE NO. 2031LOUCKS 2.5" BIT. WEAR COURSE, MN/DOT 2360 SPWEA240B TACK COAT, MN/DOT 2357 2.5" BIT. NON-WEAR COURSE, MN/DOT 2360 SPNWB230B 8" AGG. BASE, CLASS 5 OR 2 MN/DOT 3138 APPROVED SUBGRADE FINISHED GRADE 12" SELECT GRANULAR, MN/DOT 3149.D HEAVY DUTY BITUMINOUS PAVEMENT SECTION GEOTEXTILE FILTER FABRIC TYPE V, MN/DOT 3733.2 DRAWN 12/2016 LOUCKS PLATE NO. 2032LOUCKS 8" COMPACTED AGGREGATE BASE CL. 5 OR 2 MN/DOT 3138 APPROVED SUBGRADE FINISHED GRADE 8" CONCRETE MN/DOT 2301 CONCRETE PAVEMENT SECTION NOTES: 1.CONCRETE SHALL BE REINFORCED WITH FIBER REINFORCEMENT FOR INCREASED TENSILE STRENGTH. PRODUCT SHALL BY NYCON-XL-200 OR APPROVED EQUAL. 2.CONTRACTION JOINS SHALL BE SPACED AT A MAXIMUM OF 8 FEET APART. JOINT SHALL BE SAWED TO A DEPTH OF 1 4 TO 1 3 OF SLAB THICKNESS. 3.1 1 4" X 15" EPOXY COATED DOWELS SHALL BE PLACED 12" OC AT THE MIDPOINT OF THE SLAB ACROSS ALL CONSTRUCTION JOINTS. DRAWN 12/2016 LOUCKS PLATE NO. 2033LOUCKS 12" SELECT GRANULAR, MN/DOT 3149.D CONCRETE SIDEWALK SECTION 4" CONCRETE WALK MN/DOT 2521 4" GRANULAR MATERIAL MN/DOT 3149 DRAWN 12/2016 LOUCKS PLATE NO. 2034LOUCKS 53"x41" ARCH PERFORATED CMP PIPE 53"x41" ARCH PERFORATED CMP PIPE 53"x41" ARCH PERFORATED CMP PIPE 6" 12"17.7" 6" DRAWN 1/2014 LOUCKS PLATE NO. 2034CONCRETE SIDEWALK W/ SNOWMELT SECTION NOTES: 1.CONCRETE SHALL BE REINFORCED WITH FIBER REINFORCEMENT FOR INCREASED TENSILE STRENGTH. PRODUCT SHALL BE NYCON-XL-200 OR APPROVED EQUAL. 2.CONTRACTION JOINTS SHALL BE SPACED AT A MAXIMUM OF 8 FEET APART. JOINTS SHALL BE SAWED TO A DEPTH OF 1 4 TO 1 3 OF SLAB THICKNESS. 3.11 4" X 15" EPOXY COATED DOWELS SHALL BE PLACED 12" OC AT THE MIDPOINT OF THE SLAB ACROSS ALL CONSTRUCTION JOINTS. FINISHED GRADE 2" RIGID FOAM BOARD INSULATION UNDER SLAB & ALONG EDGES 6" 4,000 PSI MINIMUM CONCRETE PAVEMENT PER MNDOT 2301 W/ SNOWMELT SYSTEM (COORD. W/ MECHANICAL) 6" COMPACTED CLASS 5 AGGREGATE BASE PER MNDOT 3138 EXISTING GROUND COMPACTED SUBGRADE LOUCKS TYPICAL CROSS SECTION OF TIERED RETAINING WALL AT RETAINING WALL ELEVATION #7 SCALE: N/A PROPOSED 42" RAILING PROPOSED RECON BLOCK GRAVITY RETAINING WALL NOTE: THIS INFORMATION IS SHOWN FOR GRAPHICAL PURPOSES ONLY. CONTRACTOR TO PROVIDE RETAINING WALL DESIGN/SHOP DRAWINGS SIGNED BY A PROFESSIONAL ENGINEER FOR APPROVAL PRIOR TO CONSTRUCTION. CONTRACTOR TO SUBMIT SHOP DRAWINGS FOR STEEL PIPE RAILING. ELEV. 68.02 ELEV. 67.45 ELEV. 69.45 ELEV. 60.59 ELEV. 60.31 ELEV. 51.20 PROPOSED BUILDING FFE = 971.40 13 GAC 2 SKH 1 AE 17 GF 3 SKH 42 SD 14 GF 1 QB 14 TY 3 PB SM 2 3 PB 12 TY 3 PB 12 SG 3 PB SM 2SM 2SM 2 SM 2 NS 1 AE SOD SM 2 2 KC 2 TH 4 ABS 2 AE 1 SGM 1 KC 1 SGM 3 TH 1 QB 5 AC 12 AC 6 AC 6 SG 19 GAC 18 WG 3 BO 3 AC 8 SG 2 AC 2 AC 4 SG 2 AC LANDSCAPE EDGING TYP. LANDSCAPE EDGING TYP. LANDSCAPE EDGING TYP. LANDSCAPE EDGING TYP. LIMITS OF IRRIGATION TYP. LIMITS OF IRRIGATION TYP. LANDSCAPE EDGING TYP. ALTERNATE C3 STABILIZATION ASSOCIATED WITH CITY BITUMINOUS TRAIL DECIDUOUS TREES QTY COMMON NAME BOTANICAL NAME CONT SIZE AE 4 ACCOLADE ELM Ulmus `Morton`B & B 2.5"Cal BO 3 BURR OAK Quercus macrocarpa B & B 2.5"Cal KC 3 KENTUCKY COFFEETREE Gymnocladus dioica B & B 2.5"Cal PB 12 PAPER BIRCH Betula papyrifera 25 gal SGM 2 SIENNA GLEN MAPLE Acer freemanii `Sienna Glen`B & B 2.5"Cal SKH 5 SKYLINE HONEYLOCUST Gleditsia triacanthos `Skycole`B & B 2.5"Cal QB 2 SWAMP WHITE OAK Quercus bicolor B & B 2.5"Cal ORNAMENTAL TREES QTY COMMON NAME BOTANICAL NAME CONT SIZE ABS 4 AUTUMN BRILLIANCE SERVICEBERRY Amelanchier x grandiflora `Autumn Brilliance`B & B 1.5"Cal TH 5 THORNLESS HAWTHORN Crataegus crus-galli `Inermis`B & B 1.5"Cal SHRUBS QTY COMMON NAME BOTANICAL NAME MIN CONT MIN SIZE SPACING AC 32 AUTUMN MAGIC CHOKEBERRY Aronia melanocarpa `Magic Carpet`5 gal 24" HGT 48" o.c. GAC 32 GREEN MOUND ALPINE CURRANT Ribes alpinum `Green Mound`5 gal 24" HGT 48" o.c. GF 31 GRO-LOW FRAGRANT SUMAC Rhus aromatica `Gro-Low`5 gal 24" SPRD 48" o.c. CONIFEROUS SHRUBS QTY COMMON NAME BOTANICAL NAME MIN CONT MIN SIZE SPACING SG 30 SEA GREEN JUNIPER Juniperus chinensis `Sea Green`5 gal 18" SPRD 60" o.c. TY 26 TAUNTON YEW Taxus x media `Taunton`5 gal 18" SPRD 48" o.c. PERENNIALS QTY COMMON NAME BOTANICAL NAME MIN CONT MIN SIZE SPACING WG 18 ROZANNE GERANIUM Geranium `Rozanne`1 gal 24" o.c. SD 42 STELLA D` ORO DAYLILY Hemerocallis x `Stella de Oro`1 gal 24" o.c. GROUND COVERS CODE COMMON NAME BOTANICAL NAME SM 2 DECORATIVE STONE RIP RAP GREY TRAP ROCK RIP RAP SIZE - 5"-12" OVER FABRIC NS NATIVE SEED BWSR SEED MIX 36-211 SOD TURF SOD PLANT SCHEDULE 06-15-18 CITY SUBMITTAL © 7001 France Avenue S, Suite 200, Edina, Minnesota 55435 952-893-9020 Fax 952-893-9299 www.bdhyoung.com interiors | architecture LOUCKS 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL LOUCKS PROJECT NO. 17516NOT FOR CONSTRUCTIONFOR INFORMATION ONLY06-19-18 WATERSHED SUBMITTAL 07-12-18 WATERSHED RESUBMITTAL 07-27-18 WATERSHED RESUBMITTAL 08-02-18 CITY RESUBMITTAL N NOTE: EXISTING CONDITIONS INFORMATION SHOWN IS PROVIDED BY LOUCKS. REFER TO ALTA/NSPS LAND TITLE SURVEY DATED 05/08/18 FOR COMPLETE SURVEY INFORMATION. Gopher State One Call WARNING: THE CONTRACTOR SHALL BE RESPONSIBLE FOR CALLING FOR LOCATIONS OF ALL EXISTING UTILITIES. THEY SHALL COOPERATE WITH ALL UTILITY COMPANIES IN MAINTAINING THEIR SERVICE AND / OR RELOCATION OF LINES. THE CONTRACTOR SHALL CONTACT GOPHER STATE ONE CALL AT 651-454-0002 AT LEAST 48 HOURS IN ADVANCE FOR THE LOCATIONS OF ALL UNDERGROUND WIRES, CABLES, CONDUITS, PIPES, MANHOLES, VALVES OR OTHER BURIED STRUCTURES BEFORE DIGGING. THE CONTRACTOR SHALL REPAIR OR REPLACE THE ABOVE WHEN DAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER. SCALE IN FEET 300 60 L1.1 LANDSCAPE REQUIREMENTS BUFFER YARD REQUIREMENT (500 TOTAL LF) 2 CANOPY TREES PER/100' UNIT (ONLY NEED 75% OF REQUIREMENT) TREES REQUIRED = 8 TOTAL TREES PROVIDED = 8 4 UNDERSTORY TREE PER/100' UNIT (ONLY NEED 75% OF REQUIREMENT) TREES REQUIRED = 15 TOTAL TREES PROVIDED = 9 6 SHRUBS PER/100' UNIT (ONLY NEED 75% OF REQUIREMENT) SHRUBS REQUIRED = 23 TOTAL SHRUBS PROVIDED = 23 DUE TO EXISTING PLANTINGS ON OR VERY CLOSE TO THE SOUTH PROPERTY LINE IN THE BUFFER YARD, MINIMAL PROPOSED PLANTINGS ARE PROVIDED TO AVOID OVER PLANTING AND ENCOURAGE LONG TERM HEALTH OF EXISTING AND PROPOSED PLANT MATERIAL. LANDSCAPE AREA REQUIREMENTS (63,310 SF OF VEHICULAR AREA) PROVIDE 8 SF OF LANDSCAPE AREA PER 100 SF OF VEHICULAR AREA LANDSCAPE AREA REQUIRED = 5,064 SF TREE REQUIREMENTS (5,064 SF OF LANDSCAPE AREA) PROVIDE 1 TREE PER 250 SF OF LANDSCAPE AREA TREES REQUIRED = 20 TOTAL TREES PROVIDED = 40 FOUNDATION PLANTINGS SHRUBS AND TREES HAVE BEEN PROVIDED ALONG BUILDING FOUNDATION GENERAL NOTES CONTRACTOR SHALL VISIT SITE PRIOR TO SUBMITTING BID. HE SHALL INSPECT SITE AND BECOME FAMILIAR WITH EXISTING CONDITIONS RELATING TO THE NATURE AND SCOPE OF WORK. VERIFY LAYOUT AND ANY DIMENSIONS SHOWN AND BRING TO THE ATTENTION OF THE LANDSCAPE ARCHITECT ANY DISCREPANCIES WHICH MAY COMPROMISE THE DESIGN AND/OR INTENT OF THE PROJECT'S LAYOUT. ASSURE COMPLIANCE WITH ALL APPLICABLE CODES AND REGULATIONS GOVERNING THE WORK OR MATERIALS SUPPLIED. CONTRACTOR SHALL PROTECT ALL EXISTING ROADS, CURBS/GUTTERS, TRAILS, TREES, LAWNS AND SITE ELEMENTS DURING PLANTING OPERATIONS. ANY DAMAGE TO SAME SHALL BE REPAIRED AT NO COST TO THE OWNER. CONTRACTOR SHALL VERIFY ALIGNMENT AND LOCATION OF ALL UNDERGROUND AND ABOVE GRADE UTILITIES AND PROVIDE THE NECESSARY PROTECTION FOR SAME BEFORE CONSTRUCTION / MATERIAL INSTALLATION BEGINS (MINIMUM 10' - 0" CLEARANCE). ALL UNDERGROUND UTILITIES SHALL BE LAID SO THAT TRENCHES DO NOT CUT THROUGH ROOT SYSTEMS OF ANY EXISTING TREES TO REMAIN. EXISTING CONTOURS, TRAILS, VEGETATION, CURB/GUTTER AND OTHER EXISTING ELEMENTS BASED UPON INFORMATION SUPPLIED TO LANDSCAPE ARCHITECT BY OTHERS. CONTRACTOR SHALL VERIFY ANY AND ALL DISCREPANCIES PRIOR TO CONSTRUCTION AND NOTIFY LANDSCAPE ARCHITECT OF SAME. THE ALIGNMENT AND GRADES OF THE PROPOSED WALKS, TRAILS AND/OR ROADWAYS ARE SUBJECT TO FIELD ADJUSTMENT REQUIRED TO CONFORM TO LOCALIZED TOPOGRAPHIC CONDITIONS AND TO MINIMIZE TREE REMOVAL AND GRADING. ANY CHANGE IN ALIGNMENT MUST BE APPROVED BY LANDSCAPE ARCHITECT. 06-15-18 CITY SUBMITTAL © 7001 France Avenue S, Suite 200, Edina, Minnesota 55435 952-893-9020 Fax 952-893-9299 www.bdhyoung.com interiors | architecture LOUCKS 7200 Hemlock Lane, Suite 300 Maple Grove, MN 55369 763.424.5505 www.loucksinc.com PLANNING CIVIL ENGINEERING LAND SURVEYING LANDSCAPE ARCHITECTURE ENVIRONMENTAL LOUCKS PROJECT NO. 17516NOT FOR CONSTRUCTIONFOR INFORMATION ONLY06-19-18 WATERSHED SUBMITTAL 07-12-18 WATERSHED RESUBMITTAL 07-27-18 WATERSHED RESUBMITTAL 08-02-18 CITY RESUBMITTAL L2.1 SCALE: 3/4" = 1'-0" PERENNIAL PLANTING Perennial.Dwg LOOSEN ROOTS OF PLANT MATERIAL PRIOR MULCH - SEE SPECS. 3" DEPTH EDGER - SEE SPECS. 12" DEPTH (MIN). LOAMPLANTING SOIL - SEE SPECS. VARIES SEE PLAN TO PLANTING EDGE VARIES - SEE PLAN 4 L2.1 SHRUBS TO BE PLACED SO THAT MULCH - 3" DEEP - SEE SPEC LANDSCAPE FABRIC - SEE SPEC. PLANTING SOIL - SEE SPEC. SCARIFY BOTTOM AND SIDES OF HOLE PRIOR TO PLANTING LOOSEN ROOTS OF ALL CONTAINERIZED PLANTS. EDGE VARIES - REFER TO PLAN REFER TO PLAN 18" MIN. SCALE: 3/4" = 1'-0" SHRUB PLANTING DETAIL EDGING MATERIAL - SEE SPEC. BUILDING WALL (TYP) TOP OF CONTAINER SITS FLUSH WITH PROPOSED GRADE. 3 L2.1 Coniferous Tree.DWG EDGE VARIES - SEE PLAN WOOD STAKE (OPTIONAL) MULCH - 4" DEEP - PER SPECS. MULCH MUST ROOT BALL SET ON MOUNDED SUBGRADE SAFETY FLAGGING - ONE PER WIRE POLYETHYLENE STRAP 16"x2" POLYPROPYLENE OR HOLE PRIOR TO PLANTING SCARIFY BOTTOM AND SIDES OF PERIOD. STAKING IS SUGGESTED, BUT POSITION THROUGH THE WARRANTY MAINTAINING ALL TREES IN A PLUMB THE CONTRACTOR IS RESPONSIBLE FOR CONIFEROUS TREE PLANTING DETAIL SCALE: 1/2" = 1'-0" PLANTING. NOTIFY LANDSCAPE ARCHITECT TESTING PERCOLATION RATES PRIOR TO CONTRACTOR IS RESPONSIBLE FOR NOT REQUIRED. ANY STAKING MUST IN A.N.A. GUIDELINES FOR STANDARD CONFORM WITH PRACTICES AS DEFINED PRACTICES IMMEDIATELY IF POOR DRAINAGE EXISTS. REMOVE ALL FLAGGING AND LABELING IN 8-12" LIFTS AND SATURATE SOIL WITH PLANTING OPERATIONS. PLACE BACKFILL WATER TREE THOROUGHLY DURING FROM TREE. AFTER PLANTING IS COMPLETE. PRUNE ANY DAMAGED BRANCHES WATER. DO NOT COMPACT MORE THAN NECESSARY TO MAINTAIN PLUMB. NOT BE IN CONTACT WITH TRUNK. 2 x ROOT BALL WIDTH 2 L2.1 EDGE VARIES - SEE PLAN WOOD STAKE (OPTIONAL) SET PLANT ON UNDISTURBED NATIVE SOIL SAFETY FLAGGING - ONE PER WIRE TREE WRAP TO FIRST BRANCH POLYETHYLENE STRAP 16"x2" POLYPROPYLENE OR HOLE PRIOR TO PLANTING SCARIFY BOTTOM AND SIDES OF PERIOD. STAKING IS SUGGESTED, BUT POSITION THROUGH THE WARRANTY MAINTAINING ALL TREES IN A PLUMB THE CONTRACTOR IS RESPONSIBLE FOR DECIDUOUS TREE PLANTING DETAIL SCALE: 1/2" = 1'-0" PLANTING. NOTIFY LANDSCAPE ARCHITECT TESTING PERCOLATION RATES PRIOR TO CONTRACTOR IS RESPONSIBLE FOR NOT REQUIRED. ANY STAKING MUST IN A.N.A. GUIDELINES FOR STANDARD CONFORM WITH PRACTICES AS DEFINED PRACTICES Deciduous Tree.DWG IMMEDIATELY IF POOR DRAINAGE EXISTS. REMOVE ALL FLAGGING AND LABELING IN 8-12" LIFTS AND SATURATE SOIL WITH PLANTING OPERATIONS. PLACE BACKFILL WATER TREE THOROUGHLY DURING FROM TREE. BRANCHES AFTER PLANTING IS COMPLETE. PRUNE DAMAGED AND CROSSING WATER. DO NOT COMPACT MORE THAN NECESSARY TO MAINTAIN PLUMB. 2 x ROOT BALL WIDTH MULCH - 4" DEEP. NO MULCH IN CUT BACK WIRE BASKET CONTACT WITH TRUNK - SEE SPECS. ROOT FLARE EVEN WITH OR JUST ABOVE GRADE. 1 L2.1 LANDSCAPE INSTALLATION: COORDINATE THE PHASES OF CONSTRUCTION AND PLANTING INSTALLATION WITH OTHER CONTRACTORS WORKING ON SITE. NO PLANTING WILL BE INSTALLED UNTIL COMPLETE GRADING AND CONSTRUCTION HAS BEEN COMPLETED IN THE IMMEDIATE AREA. WHERE SOD/SEED ABUTS PAVED SURFACES, FINISHED GRADE OF SOD/SEED SHALL BE HELD 1" BELOW SURFACE ELEVATION OF TRAIL, SLAB, CURB, ETC. SEED ALL AREAS DISTURBED DUE TO GRADING OTHER THAN THOSE AREAS NOTED TO RECEIVE SOD. SEED SHALL BE INSTALLED AND MULCHED AS PER MNDOT SPECS. SOD ALL DESIGNATED AREAS DISTURBED DUE TO GRADING. SOD SHALL BE LAID PARALLEL TO THE CONTOURS AND SHALL HAVE STAGGERED JOINTS. ON SLOPES STEEPER THAN 3:1 OR IN DRAINAGE SWALES, THE SOD SHALL BE STAKED TO THE GROUND. ALL PLANT MATERIAL SHALL COMPLY WITH THE LATEST EDITION OF THE AMERICAN STANDARD FOR NURSERY STOCK, AMERICAN ASSOCIATION OF NURSERYMEN. UNLESS NOTED OTHERWISE, DECIDUOUS SHRUBS SHALL HAVE AT LEAST 5 CANES AT THE SPECIFIED SHRUB HEIGHT. ORNAMENTAL TREES SHALL HAVE NO V CROTCHES AND SHALL BEGIN BRANCHING NO LOWER THAN 3' ABOVE ROOT BALL. STREET AND BOULEVARD TREES SHALL BEGIN BRANCHING NO LOWER THAN 6' ABOVE FINISHED GRADE. ANY CONIFEROUS TREE PREVIOUSLY PRUNED FOR CHRISTMAS TREE SALES SHALL NOT BE USED. ALL CONIFEROUS TREES SHALL BE FULL FORM, NATURAL TO THE SPECIES, WITHOUT PRUNING. PLAN TAKES PRECEDENCE OVER PLANT SCHEDULE IF DISCREPANCIES IN QUANTITIES EXIST. SPECIFICATIONS TAKE PRECEDENCE OVER NOTES. ALL PROPOSED PLANTS SHALL BE LOCATED AND STAKED AS SHOWN ON PLAN. LANDSCAPE ARCHITECT MUST APPROVE ALL STAKING OF PLANT MATERIAL PRIOR TO ANY AND ALL DIGGING. NO PLANT MATERIAL SUBSTITUTIONS WILL BE ACCEPTED UNLESS APPROVAL IS REQUESTED OF THE LANDSCAPE ARCHITECT BY THE LANDSCAPE CONTRACTOR PRIOR TO THE SUBMISSION OF A BID AND/OR QUOTATION. ADJUSTMENTS IN LOCATION OF PROPOSED PLANT MATERIALS MAY BE NEEDED IN FIELD. SHOULD AN ADJUSTMENT BE ADVISED, THE LANDSCAPE ARCHITECT MUST BE NOTIFIED. ALL PLANT MATERIALS SHALL BE FERTILIZED UPON INSTALLATION WITH DRIED BONE MEAL, OTHER APPROVED FERTILIZER MIXED IN WITH THE PLANTING SOIL PER THE MANUFACTURER'S INSTRUCTIONS OR MAY BE TREATED FOR SUMMER AND FALL INSTALLATION WITH AN APPLICATION OF GRANULAR 0-20-20 OF 12 OZ PER 2.5" CALIPER PER TREE AND 6 OZ PER SHRUB WITH AN ADDITIONAL APPLICATION OF 10-10-10 THE FOLLOWING SPRING IN THE TREE SAUCER. ALL PLANTING AREAS RECEIVING GROUND COVER, PERENNIALS, ANNUALS, AND/OR VINES SHALL RECEIVE A MINIMUM OF 12" DEPTH OF PLANTING SOIL CONSISTING OF AT LEAST 45 PARTS TOPSOIL, 45 PARTS PEAT OR MANURE AND 10 PARTS SAND. ALL AREAS RECEIVING SEED OR SOD MUST RECEIVE A MINIMUM OF 6" DEPTH OF TOPSOIL. TOPSOIL TO BE INCORPORATED INTO THE UNDERLYING SOIL DURING FINAL SITE GRADING. SOIL SURFACES COMPACTED DURING CONSTRUCTION AND REMAINING PERVIOUS UPON COMPLETION OF CONSTRUCTION MUST BE DECOMPACTED THROUGH SOIL AMENDMENT AND/OR RIPPING TO A DEPTH OF 18". AVOID DISTURBING UTILITIES, TREE ROOTS AND OTHER EXISTING VEGETATION. ALL PLANTS TO BE INSTALLED AS PER PLANTING DETAILS. WRAPPING MATERIAL SHALL BE CORRUGATED PVC PIPING 1" GREATER IN CALIPER THAN THE TREE BEING PROTECTED OR QUALITY, HEAVY, WATERPROOF CREPE PAPER MANUFACTURED FOR THIS PURPOSE. WRAP ALL DECIDUOUS TREES PLANTED IN THE FALL PRIOR TO 12-1 AND REMOVE ALL WRAPPING AFTER 5-1. BLACK METAL EDGER TO BE USED TO CONTAIN SHRUBS, PERENNIALS, AND ANNUALS WHERE BED MEETS SOD/SEED UNLESS NOTED OTHERWISE. ALL SHRUB BED MASSINGS TO RECEIVE 3" DEEP SHREDDED HARDWOOD MULCH AND FIBER MAT WEED BARRIER. ALL TREES NOT IN PLANTING BEDS TO RECEIVE A 4' DIA. TREE RING WITH 4" DEEP SHREDDED HARDWOOD MULCH. NO MULCH IN DIRECT CONTACT WITH TREE TRUNK. WOOD MULCH TO BE DOUBLE SHREDDED HARDWOOD MULCH. ALL ANNUAL AND PERENNIAL PLANTING BEDS TO RECEIVE 3" DEEP SHREDDED HARDWOOD MULCH WITH NO WEED BARRIER. SPREAD GRANULAR PRE EMERGENT HERBICIDE (PREEN OR EQUAL) PER MANUFACTURES RECOMMENDATIONS UNDER ALL MULCHED AREAS. MAINTENANCE STRIPS TO HAVE EDGER AND MULCH AS SPECIFIED/INDICATED ON DRAWING OR IN SPECIFICATION. IF THE LANDSCAPE CONTRACTOR IS CONCERNED OR PERCEIVES ANY DEFICIENCIES IN THE PLANT SELECTIONS, SOIL CONDITIONS OR ANY OTHER SITE CONDITION WHICH MIGHT NEGATIVELY AFFECT PLANT ESTABLISHMENT, SURVIVAL OR GUARANTEE, HE MUST BRING THESE DEFICIENCIES TO THE ATTENTION OF THE LANDSCAPE ARCHITECT PRIOR TO PROCUREMENT AND/OR INSTALLATION. CONTRACTOR SHALL SUBMIT A WRITTEN REQUEST FOR THE OWNER ACCEPTANCE INSPECTION OF ALL LANDSCAPE AND SITE IMPROVEMENTS. CONTRACTOR IS RESPONSIBLE FOR ON-GOING MAINTENANCE OF ALL NEWLY INSTALLED MATERIALS UNTIL TIME OF OWNER ACCEPTANCE. ANY ACTS OF VANDALISM OR DAMAGE WHICH MAY OCCUR PRIOR TO OWNER ACCEPTANCE SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR. CONTRACTOR SHALL PROVIDE THE OWNER WITH A MAINTENANCE PROGRAM INCLUDING, BUT NOT NECESSARILY LIMITED TO, PRUNING, FERTILIZATION AND DISEASE/PEST CONTROL. CONTRACTOR SHALL GUARANTEE NEW PLANT MATERIAL THROUGH ONE CALENDAR YEAR FROM THE DATE OF OWNER ACCEPTANCE. WARRANTY (ONE FULL GROWING SEASON) FOR LANDSCAPE MATERIALS SHALL BEGIN ON THE DATE OF ACCEPTANCE BY THE LANDSCAPE ARCHITECT AFTER THE COMPLETION OF PLANTING OF ALL LANDSCAPE MATERIALS. NO PARTIAL ACCEPTANCE WILL BE CONSIDERED. REPRODUCIBLE AS-BUILT DRAWING(S) OF ALL LANDSCAPE INSTALLATION AND SITE IMPROVEMENTS UPON COMPLETION OF CONSTRUCTION INSTALLATION AND PRIOR TO PROJECT ACCEPTANCE. UNLESS NOTED OTHERWISE THE APPROPRIATE DATES FOR SPRING PLANT MATERIAL INSTALLATION AND SEED/SOD PLACEMENT IS FROM THE TIME GROUND HAS THAWED TO JUNE 15. FALL SODDING IS GENERALLY ACCEPTABLE FROM AUGUST 15 - NOVEMBER 1. FALL SEEDING FROM AUGUST 15 - SEPTEMBER 15; DORMANT SEEDING IN THE FALL SHALL NOT OCCUR PRIOR TO NOVEMBER 1. PLANTING OUTSIDE THESE DATES IS NOT RECOMMENDED. ANY ADJUSTMENT MUST BE APPROVED IN WRITING BY THE LANDSCAPE ARCHITECT. CONIFEROUS PLANTING MAY OCCUR FROM AUGUST 15 - OCTOBER 1 AND FALL DECIDUOUS PLANTING FROM THE FIRST FROST UNTIL NOVEMBER 15. PLANTING OUTSIDE THESE DATES IS NOT RECOMMENDED. ANY ADJUSTMENT MUST BE APPROVED IN WRITING BY THE LANDSCAPE ARCHITECT. PROTECT ALL EXISTING OAKS ON SITE SCHEDULED TO REMAIN. IF EXISTING OAKS ARE DAMAGED IN ANY MANNER, ABOVE OR BELOW GROUND IN THE ROOT SYSTEM, AN ASPHALTIC TREE PRUNING PAINT SHOULD BE APPLIED IMMEDIATELY AFTER WOUNDING. OAKS ARE NOT TO BE PRUNED, REMOVED OR TRANSPLANTED BETWEEN APRIL 15 AND JULY 1. NOTIFY LANDSCAPE ARCHITECT IF THESE DATES ARE UNAVOIDABLE. LANDSCAPE CONTRACTOR SHALL ESTABLISH TO HIS SATISFACTION THAT SOIL AND COMPACTION CONDITIONS ARE ADEQUATE TO ALLOW FOR PROPER DRAINAGE AT AND AROUND THE BUILDING SITE. MAINTENANCE STRIP AT BUILDING EDGE SCALE: 1 1/2" = 1'-0" GEOTEXTILE WOVEN BUILDING WALL SOD LANDSCAPE EDGER (TYP) SEE SPECS LANDSCAPE FABRIC ROCK MULCH - REFER TO LANDSCAPE PLAN FOR MORE INFO. OR BACK OF CURB 7 L2.1 IRRIGATION NOTES: VERIFY PROPOSED IRRIGATION SYSTEM LAYOUT AND CONFIRM COMPLETE LIMITS OF IRRIGATION PRIOR TO SUPPLYING SHOP DRAWINGS. LANDSCAPE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING AN IRRIGATION LAYOUT PLAN AND SPECIFICATION AS A PART OF THE SCOPE OF WORK WHEN BIDDING. THESE SHALL BE APPROVED BY THE LANDSCAPE ARCHITECT PRIOR TO ORDER AND/OR INSTALLATION. IT SHALL BE THE LANDSCAPE CONTRACTORS RESPONSIBILITY TO INSURE THAT ALL SODDED/SEEDED AND PLANTED AREAS ARE IRRIGATED PROPERLY, INCLUDING THOSE AREAS DIRECTLY AROUND AND ABUTTING BUILDING FOUNDATION. THE LANDSCAPE CONTRACTOR SHALL PROVIDE THE OWNER WITH A WATERING/LAWN IRRIGATION SCHEDULE APPROPRIATE TO THE PROJECT SITE CONDITIONS AND TO PLANT MATERIAL GROWTH REQUIREMENTS. CONTRACTOR IS NOT TO SPRINKLE ACROSS PAVEMENT. CONTRACTOR TO INCORPORATE RAIN SENSOR INTO IRRIGATION SYSTEM. PLANTINGS OUTSIDE THE LIMITS OF IRRIGATION ARE TO BE WATERED REGULARLY UNTIL PLANTING/SOD/SEED HAS BEEN ESTABLISHED. 1 CITY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES, MINNESOTA FINDINGS OF FACT AND RECOMMENDATION IN RE: Application of Bauer Design Build and Zion Investments, LLC for Site Plan approval for a 54,600 square foot, two story, office, warehouse and manufacturing building. On July 17, 2018, the Chanhassen Planning Commission met at its regularly scheduled meeting to consider the application of Bauer Design Build and Zion Investments, LLC for site plan approval. The Planning Commission conducted a public hearing on the proposed development preceded by published and mailed notice. The Planning Commission heard testimony from all interested persons wishing to speak and now makes the following: FINDINGS OF FACT 1. The property is currently zoned Planned Unit Development, PUD. 2. The property is guided in the Land Use Plan for Office Industrial uses. 3. The legal description of the property is: Lot 2, Block 1, Arboretum Business Park 7th Addition. 4. Site Plan Review: a. Is consistent with the elements and objectives of the city's development guides, including the comprehensive plan, official road mapping, and other plans that may be adopted; Finding: The proposed development is compliance with the elements and objectives of the city's development guides as well as meeting the design standards for Arboretum Business Park. b. Is consistent with site plan division; Finding: The proposed development complies with the Site Plan review requirements of the Chanhassen City Code. c. Preserves the site in its natural state to the extent practicable by minimizing tree and soil removal and designing grade changes to be in keeping with the general appearance of the neighboring developed or developing or developing areas; Finding: The site has been significantly altered by previous grading on the parcel. The proposed development is in keeping with the general appearance of the neighboring 2 developed areas. The development is preserving the Bluff Creek primary zone located on the site. d. Creates a harmonious relationship of building and open space with natural site features and with existing and future buildings having a visual relationship to the development; Finding: The proposed development creates a harmonious relationship of building and open space with natural site features and with existing and future buildings having a visual relationship to the development. e. Creates a functional and harmonious design for structures and site features, with special attention to the following: 1) An internal sense of order for the buildings and use on the site and provision of a desirable environment for occupants, visitors and general community; 2) The amount and location of open space and landscaping; 3) Materials, textures, colors and details of construction as an expression of the design concept and the compatibility of the same with adjacent and neighboring structures and uses; and 4) Vehicular and pedestrian circulation, including walkways, interior drives and parking in terms of location and number of access points to the public streets, width of interior drives and access points, general interior circulation, separation of pedestrian and vehicular traffic and arrangement and amount of parking. Finding: The proposed development creates a functional and harmonious design for structures and site features, subject to compliance with the conditions of approval. e. Protects adjacent and neighboring properties through reasonable provision for surface water drainage, sound and sight buffers, preservation of views, light and air and those aspects of design not adequately covered by other regulations which may have substantial effects on neighboring land uses. Finding: The proposed development protects adjacent and neighboring properties through reasonable provision for surface water drainage, sound and sight buffers, preservation of views, light and air and traffic circulation. 5. The planning report #2018-11, dated July 17, 2018 prepared by Robert Generous, et al, is incorporated herein. 3 RECOMMENDATION The Planning Commission recommends that the City Council approve the Site Plan for Control Concepts subject to the recommended conditions of approval contained within the staff report. ADOPTED by the Chanhassen Planning Commission this 17th day of July 2018. CHANHASSEN PLANNING COMMISSION BY:___________________________________ Its Chairman 1 CITY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES, MINNESOTA FINDINGS OF FACT AND DECISION IN RE: Application of Bauer Design Build and Zion Investments, LLC for a Bluff Creek primary zone setback variance to construct retaining walls in conjunction with a site plan for a 54,600 square- foot, two-story, office, warehouse and manufacturing building on property zoned Planned Unit Development – Planning Case #2018-11. On August 7, 2018, the Chanhassen Planning Commission met at its regularly scheduled meeting to consider the application. The Planning Commission conducted a public hearing on the proposed variance preceded by published and mailed notice. The Planning Commission makes the following: FINDINGS OF FACT 1. The property is currently zoned Planned Unit Development, PUD. 2. The property is guided in the Chanhassen Comprehensive Plan for Office Industrial uses. 3. The legal description of the property is Lot 2, Block 1, Arboretum Business Park 7th Addition. 4. Variance Findings – Section 20-58 of the City Code provides the following criteria for the granting of a variance: a. Variances shall only be permitted when they are in harmony with the general purposes and intent of this Chapter and when the variances are consistent with the comprehensive plan. Finding: The granting of the variance will provide an enhanced opportunity for the pedestrian experience on the required wetland trail. The use of the variance provides reduced impacts to the natural areas. b. When there are practical difficulties in complying with the zoning ordinance. "Practical difficulties," as used in connection with the granting of a variance, means that the property owner proposes to use the property in a reasonable manner not permitted by this Chapter. Practical difficulties include, but are not limited to, inadequate access to direct sunlight for solar energy systems. 2 Finding: While the developer could have constructed a 17-foot tall retaining wall for the parking lot outside of the required Bluff Creek primary zone setback, the trail experience would have been greatly reduced for trail users. c. That the purpose of the variation is not based upon economic considerations alone. Finding: The purpose of the variance is to enhance the trail experience. Economic considerations are not a factor in the decision. d. The plight of the landowner is due to circumstances unique to the property not created by the landowner. Finding: The developer could have built a retaining wall that complied with the required setback, but the trail experience would have been greatly impacted. e. The variance, if granted, will not alter the essential character of the locality. Finding: The granting of the variance will permit an enhanced wetland trail experience for the trail users. f. Variances shall be granted for earth sheltered construction as defined in Minnesota Statutes Section 216C.06, Subdivision 14, when in harmony with this Chapter. Finding: This condition does not apply. 5. The planning report #2018-11, dated August 7, 2018, prepared by Robert Generous, et al, is incorporated herein. RECOMMENDATION The Planning Commission recommends approval of a Bluff Creek primary zone setback variance to construct retaining walls in the required setback subject to the conditions of approval in the staff report. ADOPTED by the Chanhassen Planning Commission this 7th day of August, 2018. CITY OF CHANHASSEN BY: _______________________________ Chairman \\cfs5\cfs5\shared_data\plan\2018 planning cases\18-11 control concepts - site plan review\variance 18-11\findings of fact and recommendation - variance.doc CHANHASSEN PLANNING COMMISSION REGULAR MEETING AUGUST 7, 2018 Chairman Aller called the meeting to order at 7:00 p.m. MEMBERS PRESENT: Andrew Aller, Mark Undestad, Steve Weick, Nancy Madsen, Mark Randall, and Michael McGonagill MEMBERS ABSENT: John Tietz STAFF PRESENT: Bob Generous, Senior Planner; Sharmeen Al-Jaff, Senior Planner; George Bender, Assistant City Engineer, and Vanessa Strong, Water Resources Coordinator PUBLIC PRESENT: Russ & Diana Jones 3961 Country Oaks Drive Lynn & Nancy Simpson 3980 Country Oaks Drive Court MacFarlane 3800 Leslee Curve Jane Bender 4001 Stratford Ridge Steve Arndt 2960 Stratford Ridge David Robertson 2900 Stratford Ridge Jason Watt 3961 Stratford Ridge Trent Birkholz 3851 Stratford Ridge David & Diane Lieser 3881 Stratford Ridge Linda Brand 3981 Country Oaks Garit Solheim-Witt 3850 Leslee Curve PUBLIC HEARING: CONTROL CONCEPTS: REQUEST FOR SETBACK VARIANCE. Generous: Thank you Chairman, commissioners. Control Concepts, this is part two Planning Case 2018-11. We saw the site plan at the July 17th meeting. As part of that there was concern about the size of the retaining walls adjacent to the pedestrian trail that’s being put in. So we worked with the applicant to come up with an alternative design that would reduce the size of those walls. However to do that they need a variance to encroach the retaining walls into the Bluff Creek primary zone setback. Not into the primary zone itself but into the 40 foot setback from that one. The property is located at 8077 Century Boulevard. This is in the Arboretum Business Park planned unit development. The request is in conjunction with the site plan so this is only a recommendation that we’ll make tonight. You won’t make a final decision as a Board of Appeals and Adjustments to permit the retaining wall to encroach into the primary zone setback as shown on their plans. The property is guided for office industrial uses. It’s zoned planned unit development as part of the Arboretum Business Park. It’s also within the Bluff Chanhassen Planning Commission – August 7, 2018 2 Creek corridor which has additional protection requirements. This was the site plan that was approved on, or recommended for approval on the 17th. Unfortunately it’s only two dimensional so it looks really great and easy on the screen. It’s a 54,600 square foot building. The western portion is, has a two story office component and then it has warehouse and manufacturing or manufacturing space on the eastern side. There is a tenant space on the extreme eastern end of the building. As submitted with the site plan review they were proposing one, a single retaining wall adjacent to the trail system. This raised, had high points of over 18 feet at the corner of the property. At the turning points in the trail and then also down on the east end of it. That was a concern of the Planning Commission and staff and the Parks Director and what type of environment would that create for the trail users. The applicant was able to provide us with a cross section to give you an idea of what the experience would be and you can see that wall would really dominant the walking in that area so, and this is I believe at the point 7 on the trail. So as part of the alternative design we came up with the tiered wall system. It reduced, basically split the height of the retaining wall so half was on top and half was below. It reduced the highest point in the retaining wall to 12 feet on the eastern end of the building but at that corner point down in here it had an upper elevation of almost 9 feet. Just under 9 feet for the retaining wall and then another 9 foot retaining wall below it so they created like an overview or shelf area in the corner that would allow people to look over the wetland complex to the northeast of that. This is, however having this wall encroach into the 40 foot setback requires a variance and so that’s what we’re here for tonight. Again they provided a cross section to show how the experience for people using the trail would be much more human scale and so we would think it will provide an enhanced environment for people to go forward. Staff is recommending that the Planning Commission recommend approval of the variance to permit the retaining walls within the Bluff Creek primary zone setback. We have Findings of Fact that it is in harmony with our ordinance and it does not change the character of the area but we believe will enhance the pedestrian experience as they use this trail system. Additionally there’s adoption of Findings of Fact and Recommendation. With that I’d be happy to answer any questions. Aller: Any questions at this time of staff? Commissioner Weick. Weick: First time this came up I just did a bad job of getting clarification for myself so I just, I’m looking for clarification on the necessity for the trail. So is there currently like a dead end trail in the Preserve that’s waiting to be connected? Generous: There is a fork that was established with the 7th Addition which was built in 2007 to come towards the north. Weick: Okay. Generous: And so that was the plan and this would actually connect to the heart of the Arboretum Business Park area and provide really easy access for people to get onto the system. Right now you can get into it off of 82nd Street. There’s a connection that goes around, there’s a big stormwater pond in that corner. Chanhassen Planning Commission – August 7, 2018 3 Weick: Yeah. Generous: And then into it so it was felt at the time of the subdivision and approval that this was an important connection so we’re trying to implement that. As part of the approval for the 7th Addition the developer was required to do that but we allowed them to wait until this site developed before putting in the trail. We could have had them put in the trail back in 2007 and then the development would have to come in and either fit into, their design into where the trail was or. Weick: Yeah, okay. That’s all I had. Aller: Great. Any additional questions? Commissioner McGonagill. McGonagill: Bob on the down slope wall, what would the fencing be along that wall to keep people from falling off of it? Do you recall? Generous: Yeah it’s a dual pipe system so two rails of pipe. Black pipe that would go along there. About 42 inches high. McGonagill: Okay, thank you. Generous: And it’s the open design so when we push snow it can go through that in the winter so that people would be able to use that year round. McGonagill: Okay thank you. Keeps bikes from going off it. Generous: Yes. Aller: Commissioner Madsen. Is that fence similar to the one that goes along 101? It’s on the right side, or on the west side of 101. Generous: Yes that’s what the design that they were talking, the Parks Director was talking about. That it’d be similar to that. Madsen: Yep south of Lyman, north of Pioneer Trail. Generous: Correct. Madsen: Okay thank you. Aller: Okay I have a question for Ms. Strong. As always I’m always concerned about the Bluff Creek so obviously they made an effort to alter their plans based upon the comments from the Chanhassen Planning Commission – August 7, 2018 4 last hearing. The question I have basically is going towards when we stagger this we’re going to reduce the speed of the runoff. How will that impact, based upon the grade and the elevations or would it impact the flow as compared to, are we getting a better deal with the two as opposed to one? Strong: I thought about that too. It’s really tough to say. I think they’re attempting the best they can to meet the needs for the trail so I think when it comes to runoff, the ground level versus the two tiered, the difference is not considerable compared to the fact that they actually need to meet the trail in the first place. Obviously ideal would be to have a wider buffer. That’s really what we need. But with a balance to meet many needs so. Aller: Any additional questions based, hearing none we’ll have the applicant come forward and make a presentation. Answer questions. If you could state your name and address and representational capacity for the record that would be great. Cory Watkins: Hi. Cory Watkins. I’m with Control Concepts. We’re at 18760 Lake Drive East in Chanhassen. Aller: Welcome back. Cory Watkins: Thank you. You know I don’t have a lot to present. Your staff did a good job of presenting what we’re doing. I would say that the original proposal that we put forward did not require a variance and so the variance is really specifically because of requests to have it be a different user experience so it’s more of a trail causing the variance versus us as an entity looking for the variance so that’s really our position on it so. Aller: Additional questions, comments. Alright, thank you sir. Cory Watkins: Alright thank you. Aller: At this time I’ll open up the public hearing portion of the item. This is an opportunity for those present to come forward and speak either for or against the item. Seeing no one come forward I’m going to close the public hearing portion of the item and open it up for commissioner discussion or action. Weick: Yeah the only comment I would make, I’m not opposed to this in any way. It seems like we’re putting an awful lot of work into making this connection. I’m, I don’t know that we really need to make this connection. I use that area and you can get around. I think sufficiently without that connection. It’s really not that far from the 82nd Street that kind of brings you around in on the other side so I, personally I don’t even think we need to make the connection. It doesn’t, you know if that’s what we want to do that’s fine. It seems like a good solution. I’m just not convinced that it’s needed. Chanhassen Planning Commission – August 7, 2018 5 Aller: Additional comments? Questions? I’d entertain a motion for or against. Undestad: I’ll make a motion that the Chanhassen Planning Commission recommends approval of a variance to permit retaining walls within the Bluff Creek primary zone setbacks subject to the conditions of approval and adoption of the Findings of Fact and Recommendation. Aller: I have a motion. Do I have a second? McGonagill: Second. Aller: Having a motion and a second, any further discussion? Okay. Comments. Otherwise we’ll entertain a vote. Undestad moved, McGonagill seconded that the Planning Commission recommends approval approve variance to permit construction of retaining walls within the Bluff Creek primary zone setback as shown in the plans prepared by Loucks, dated 06-15-2018, revised 7-12-18, subject to the following conditions: Building 1. Retaining walls over 4 feet in heights require an engineered design. Environmental Resources 1. The applicant shall coordinate a trail inspection with the city arborist to review tree removals prior to any trail construction activities. 2. Tree protection fencing must be installed at the edge of grading limits along the trail. Parks 1. The developer shall be responsible for planning, engineering, and constructing the “wetland trail.” Connection points for this new trail shall be the terminus of the Trotters Ridge trail and the intersection of Century Boulevard and Water Tower Place. Bid documents, including plans and specifications, shall be approved by the Park & Recreation Director and City Engineer prior to soliciting bids. Project bidding shall occur in a competitive environment with a minimum of three bids being received. The results of the bidding process shall be reviewed with the Park & Recreation Director and City Engineer prior to award. Cash payment for trail construction shall Chanhassen Planning Commission – August 7, 2018 6 be made from the City of Chanhassen to the developer upon completion, inspection, and acceptance of the trail. 2. Trail easements within Lot 2, Block 1, Arboretum Business Park 7th shall be dedicated to the city to accommodate the “wetland trail”. Water Resources and Engineering 1. The limits of the Bluff Creek Overlay District (BCOD) shall be identified throughout the plan set. 2. Add detailed design for the retaining walls including a profile, proposed construction materials, and railings/fences. 3. Add cut sections through the retaining walls and the trail to provide for easier visualization and enhance constructability. 4. Create a parapet design along the upper wall when it is above the trail. 5. Extend the silt fence installation as appropriate to protect from construction. 6. Identify snow storage locations on the plans. 7. Provide a restoration plan for grading in the wetland buffer and in the Bluff Creek Overlay District (BCOD) buffer. 8. The proposed redevelopment will need Riley-Purgatory-Bluff Creek Watershed District (RPBCWD) permits. 9. It is the applicant’s responsibility to ensure and submit proof that permits are received from all other agencies with jurisdiction over the project (i.e. Army Corps of Engineers, DNR, MnDOT, Carver County, RPBCWD, Board of Water and Soil Resources, PCA, etc.). 10. The grade through the ADA areas of the parking lot shall be a maximum of 2% slope in any direction. The point elevations should be re-checked. Add this code requirement in a note on the plans. All voted in favor and the motion carried unanimously with a vote of 6 to 0.