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1c Approve Funds to Westwood Church for W. 78th Street Extension CITY OF CHANHASSEN 7700 Market Boulevard PO Box 147 Chanhassen, MN 55317 Administration Phone 952.227.1100 Fax 952.227.1110 Building Inspections Phone 952.227.1180 Fax 952.2271190 Engineering Phone: 952.2271160 Fax 952.227.1170 Finance Phone: 952.227.1140 Fax 952.2271110 Park & Recreation Phone 952.227.1120 Fax 952.227.1110 Recreation Center 2310 Coulter Boulevard Phone: 952.227.1400 Fax 952.227.1404 Planning & Natural Resources Phone 952.227.1130 Fax 952.227.1110 Public Works 1591 Park Road Phone 952.227.1300 Fax 952.227.1310 Senior Center Phone 952.227.1125 Fax: 952.227.1110 Web Site WIIw.ci. chan hassen. mn. us ..1e - MEMORANDUM TO: "7. C). \ Paul Oehme, Dir. of Public Works/City Engineer Alyson Fauske, Assistant City Engineer a-t;l(<f../ January 23,2006 FROM: DATE: SUBJECT: Approve Expenditure of Funds to Westwood Church for West 78th Street Extension, Project No. 04-14 REQUESTED ACTION Approve expenditure of funds for the cost difference between a 26-foot wide driveway and a 31-foot wide street and associated storm water ponding, wetland mitigation, trail construction and landscaping. BACKGROUND On July 12,2004, Council approved the site plan for the Westwood Church Expansion and authorized paying for the cost difference for oversizing the road. On November 15, 2004, former Assistant City Engineer Matt Saam sent a letter stating what the City would reimburse to Westwood Church for the cost difference associated with construction West 78th Street to City standards versus constructing a 26-foot wide driveway. DISCUSSION After City Council approval of the Westwood Church site plan, staff met with representatives from Westwood Church to discuss reimbursement options for a portion of the construction of West 78th Street. The City agreed to reimburse for the additional cost associated with constructing a 31-foot wide street versus a 26- foot wide drive. The agreed upon reimbursements were as follows: 1. Oversizing of West 78th Street from a 26-foot wide driveway to a 31-foot wide street: $18,238.03 2. Ten-foot wide bituminous trail: $16,445.00 3. Additional wetland fill and mitigation required due to street widening: $5,572.77 4. Additional ponding due to street widening: $1,830.38 5. Landscaping along West 78th Street: $10,362.00 6. Additional engineering costs: 12% of the cost of Items 1-5 The City of Chanhassen · A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play. Paul Oehme January 23, 2005 Page 2 On October 24,2005, Westwood Church's engineer, Pioneer Engineering, submitted a letter requesting additional reimbursement, which is summarized as follows: 1. Grading costs associated with constructing the "oversizing" of West 78th Street and the trail: $8,671.91 (Staff is "not" recommending approval) 2. Additional subgrade correction for the West 78th Street "oversizing": $2,311.13 (Staff is "not" recommending approval) 3. Land cost for the additional 20-foot of right of way required to "oversize" West 78th Street and construct the bituminous trail: $80,400.00 (Staff is recommending approval of this item) Staff's opinion is that the grading costs associated with the "oversizing" of West 78th Street and the land costs for the additional 20-feet of right of way is above and beyond the original scope of the agreed-upon reimbursable items. The reimbursement for additional subgrade correction is a reasonable request. REIMBURSEMENT A. Recommended amount to be reimbursed from the Street Fund Reimbursable Item West 78th Street "oversizing" Landscaping Subtotal 12% engineering Amount $18,238.03 10,362.00 $28,600.03 3,432.00 $32,032.03 2,311.13 $34,343.16 Additional subgrade correction Total reimbursement, Street Fund B. Recommended amount to be reimbursed from the Surface Water Fund Reimbursable Item Wetland Mitigation Additional Ponding Subtotal 12% engineering Total reimbursement, Surface Water Fund Amount $5,572.77 1,830.38 $7,403.15 888.38 $8,291.53 Paul Oehme January 23,2005 Page 3 C. Recommended amount to be reimbursed from the Park Fund Reimbursable Item lO-foot wide bituminous trail 12% engineering Total reimbursement, Park Fund Amount $16,445.00 1,973.40 $18,418.40 D. Total Recommended Reimbursement Street Fund Surface Water Fund Park Fund Total: $34,343.16 8,291.53 18,418.40 $61,053.09 RECOMMENDA TION Staff recommends City Council approval of reimbursement to Westwood Church in the amount of $61,053.09 for the West 78th Street oversizing. Attachments: 1. July 12,2004 Staffreport 2. Nov. 15, 2004 letter from Matt Saam 3. Oct. 24, 2005 letter from Pioneer Engineering 4. Dec. 12, 2005 letter to Pioneer Engineering 5. Reimbursement Agreement c: Dan Russ, Welsh Development g:\eng\projects\westwood church\w. 78th st. extension - #04-14\012306 reimbursement for construction.doc ~ z < u ~ ~ ~ ~ < < ~ < Q ~ ~ ~ 00 PC DATE: June 15,2004 CC DATE: July 12,2004 CITY OF CHANHASSEN REVIEW DEADLINE: July 13, 2004 CASE #: 04-20 BY: REG, LH, ML, JS, MS, ST STAFF REPORT PROPOSAL: Request for Site Plan Approval to expand the parking lot (W 166 spaces) and the extension of West 78th Street, and a Wetland Alteration Permit to alter and fill wetlands on site, Westwood Community Church. LOCATION: 3121 Westwood Drive (west ofTH 41 at Tanadoona Drive) APPLICANT: Dan Russ c/o Welsh Development 7807 Creekridge Circle Minneapolis, MN 55439-2609 (952) 897-7745 Westwood Community Church 3121 Westwood Drive Excelsior, MN 55331 PRESENT WNING: Office and Institutional District, 01 2020 LAND USE PLAN: Public/Semi-Public ACREAGE: 58.61 acres DENSITY: N/A SUMMARY OF REQUEST: The applicant is proposing the expansion of the parking lot by W 166 spaces, extension of a driveway to the proposed West 78th Street extension and construction of the West 78th Street extension. No additional buildings are proposed as part of the current site plan. 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 those standards, the City must then approves the site plan. This is a quasi-judicial decision. Planning Connnission Westwood Community Church Case No. 04-20 June 15,2004 Page 2 PROPOSAUSUMMARY The site was previously developed with the first phase of an ultimate project that will create a campus for Westwood Connnunity Church. The applicant is proposing the eXfansion of the parking lot by ~ 166 spaces, extension of a driveway to the proposed West 78 Street extension and construction of the West 78th Street extension. No additional buildings are proposed as part of the current site plan. It should be noted that the extension of West 78th Street will be a public/private partnership. Westwood Church is onl r uired to build a 26- foot wide drivewa with curb and tter to serve their develo ment. Staff is reconnnending approval of the site plan for the parking expansion, driveway connection and West 78th Street extension and the wetland alteration permit. BACKGROUND On September 27,2001, the Chanhassen City Council approved the following: . Land use amendment from Residential- Low Density to Public/Semi-Public based on the findings in the staff report and contingent upon Metropolitan Council review and approval. . Rezoning of the property from Rural Residential, RR, to Office and Institutional, 01 based on the findings in the staff report. . Site Plan #2001-10, plans prepared by Hannnel, Green and Abrahamson, Inc., dated July 6,2001, with a one-story variance from the Office and Institutional district regulations and a 2.5-foot variance from the 40-foot building height Highway Corridor District regulations. . Wetland Alteration Permit to alter and fill 34,900 square feet (0.8 acres) of wetlands. However, only part of the wetland alteration occurred for the extension of the sewer and construction of the storm water pond. APPLICABLE REGULATIONS Chapter 20, Article II, Division 6, Site Plan Review Chapter 20, Article VI, Wetlands Chapter 20, Article XXI, "Of' Office and Institutional District Planning Commission Westwood Community Church Case No. 04-20 June 15,2004 Page 3 GENERAL SITE PLAN/ARCHITECTURE The applicant is proposing the ex~ansion of the parking lot by ~ 166 spaces, extension of a driveway to the proposed West 78 Street extension and construction of the West 78th Street extension. No additional buildings are proposed as part of the cWTent site plan. LANDSCAPING The applicant is proposing parking lot landscaping consistent with the existing lots. The center island landscaping uses crabapples in a mass, organized planting. Plantings along the entryway drive are the same species as the existing lot creating a uniform view into the site. Vehicular use landsc Trees/ parking lot Re uired area 5,952 s . ft. 240verstory 12 islands/peninsulas Pro sed >5,952 s . ft. 12 overstory 60 understory 2 islands/ ninsulas Proposed landscaping meets minimum ordinance requirements. The applicant is consistent with the parking lot landscaping previously approved for the existing lots. As before, the applicant is installing trees that are smaller than ordinance requirements, but planting more than are required. The smaller sizes are acceptable to staffbecause the applicant is meeting the minimum requirements for caliper inches rather than quantities of materials. For example, there are 24 overstory trees required for the parking lot. At the required size of 2 W' diameter, a total of 60 inches is required. The applicant is proposing 72 trees measuring 1" - 1 W' diameter for a total of 85 diameter inches. Staff supports this approach for two reasons. Firstly, it has been documented that planting smaller sized materials often results in healthier, less stressed plants due to the reduction in root loss and transplant stress. Secondly, the site ultimately gets nearly twice the number of plants as it would have had the applicant proposed the standard required size of materials. Ordinance requires boulevard trees along all collector roads. The extension of West 78th Street will require an overstory tree every 30 feet. WETLANDS Existing Wetlands There are two aglurban wetlands present on-site. Svoboda Ecological Resources (SER) delineated the wetlands in May 1997 and reexamined the site on May 9,2001. Wetland 1 is a Type 2 wetland located in the south central portion of the property, just south of the existing building. The northern part of the wetland is dominated by reed canary grass, while the southern part of the wetland supports forest vegetation, such as box elder. The applicant is proposing wetland fill for a road in order to provide circular vehicular movement around the Planning Commission Westwood Community Church Case No. 04-20 June 15,2004 Page 4 campus. This road is proposed to cross Wetland 1 just north ofthe southern property line. The width and height of the road have been minimized in order to reduce the amount of wetland impact required. The total proposed impact to Wetland 1 is 30,033 square feet (0.70 acres). Wetland 2 is a Type 1 wetland located at the far west end of the parcel. It is dominated by American elm and green ash with an understory of greater straw sedge. No wetland impact is proposed for this basin. Wetland Replacement The applicant is proposing the construction of31,650 square feet (0.73 acres) of new wetland credit (NWC) adjacent to Wetland 1. The applicant has proposed employing storm water ponds constructed with this phase (14,500 square feet) as public value credit (PVC) for a portion ofthe required 2: 1 replacement ratio. The applicant has also proposed using 13,916 square feet ofPVC that was created with the first phase of this project. Minnesota Rule 8420.0740 Subp. 1 (F) states that "In cases where excess wetland acreage is expected to result from a specific replacement plan. . ., the owner must indicate on the replacement plan that the excess acreage is to be considered available for wetland banking or lose the opportunity to use the excess credits for future projects." Since this was not done with the initial wetland alteration permit, these public value credits are not available. The applicant should develop an amendment to the wetland replacement plan to achieve the required 2: I replacement (provide the additional required 13,916 square feet) without employing credits constructed during the first phase. Wetland replacement must occur in a manner consistent with the Minnesota Wetland Conservation Act (MR 8420). The applicant must receive the City's approval of a wetland replacement plan prior to any wetland impact occurring. The applicant should provide proof of recording of a Declaration of Restrictions and Covenants for Replacement Wetland. A wetland buffer 0 to 20 feet in width (with a minimum average of 10 feet) must be maintained around all existing and proposed wetlands. (Wetland buffers proposed for PVC must maintain a width of 16.5 feet.) Wetland buffer areas should be preserved, surveyed and staked in accordance with the City's wetland ordinance. The applicant will install wetland buffer edge signs, under the direction of City staff, before construction begins and will pay the City $20 per sign. All structures must maintain a 40- foot setback from the edge of the wetland buffer. GRADING. DRAINAGE AND EROSION CONTROL The grading for this site can be broken into two separate operations: one is for the additional parking lot on the north side of the site and the other is for the extension of West 78th Street at the south end of the site. The additional parking area was previously rough graded with the original Westwood Church project. The applicant is now proposing to finish grade the area for paving. At the south end of the site, the entire south property line will be graded for the extension of West 78th Street from Highway 41. In addition, two driveways will be graded to the Planning Commission Westwood Community Church Case No. 04-20 June 15,2004 Page 5 north of West 78th Street for access to the new road. The applicant will also be grading for the construction of a new pond and wetland mitigation area. To avoid significant grading into the Landscape Arboretum's property at the southeast corner of the site, a retaining wall, ranging in height from 4' to 9', is proposed. A permit for the proposed retaining wall is required to be obtained from the Building Department and the wall must be designed by a registered structural engineer. Even with the wall, there is a small amount of grading that is proposed on the northeast corner of the Arboretum's property. This off-site grading will require a temporary easement or right-of-entry agreement from the Arboretum. Should earthwork quantities not balance on site and materials need to be imported or exported from the site, the developer will need to supply the City with a detailed haul route for review and approval by staff In addition, if material is proposed to be exported to another location in Chanhassen, it should be noted that the properties would be required to obtain an earthwork permit from the City. All areas disturbed as a result of construction-related activity must be sodded and/or seeded and disc mulched within two weeks of disturbance. Drainage from the new parking lot will be conveyed via storm sewer to an existing public pond off the northeast corner of the site. This existing pond has been previously sized for the additional impervious drainage so no further improvements are required. A new pond at the south end of the site is proposed to treat a large majority of the drainage from the new public street, private driveways and future parking lots on the church property. The pond will discharge the treated stormwater to the existing wetland just east of the pond. This wetland then drains south into the Arboretum's property. The outlet rate from this wetland is required to be the same or less than the existing flow rate of stormwater onto the Arboretum's property. The eastern 300 feet of new West 78th Street is proposed to drain to the Highway 41 ditch at the northwest comer of the intersection. This will require a MnDOT drainage permit. In addition, an NPDES permit and Watershed district permit will be required for the project grading. Drainage calculations for the existing and proposed conditions including the 10- and 100- year runoff rates along with storm sewer sizing data has been submitted for staff review. Staff has reviewed the calculations and found that only minor modifications are needed. Drainage and utility easements will be required over the wetland, pond, and the adjacent mitigation areas. An easement for access purposes will also be required for future maintenance of the wetlands. Erosion control measures and site restoration must be developed in accordance with the City's Best Management Practice Handbook (BMPH). Staff recommends that the City's Type II silt fence, which is a heavy duty fence, be used adjacent to all existing wetlands and ponds. In addition, erosion control blankets should be used on all slopes 3: 1 or greater with heights of 6' or more. Stonn Water Management According to July 18, 2001 correspondence from Peter Olin with regard to the previous phase, the Arboretum has reviewed the plans for the Westwood Church Development. The Arboretum is concerned that the culverts under the West 78th Street extension will affect the volume and Planning Commission Westwood Community Church Case No. 04-20 June 15, 2004 Page 6 rate of runoff from the site and that this, in turn, will affect the research plots on the Arboretum property. The proposed development is required to maintain existing runoffrates. Staffwill review the storm water calculations to ensure runoff rates will not increase as a result of the proposed development. The applicant may want to work with the Arboretum to ensure their concerns are addressed. Easements Drainage and utility easements should be provided over all existing wetlands, wetland mitigation areas, buffer areas used for mitigation credit and storm water ponds. Erosion Control Erosion control blanket should be installed on all slopes greater than or equal to 3: 1. All exposed soil areas must have temporary erosion protection or permanent cover year round, according to the following table of slopes and time frames: Steeper than 3: 1 10:lt03:1 Flatter than 10: 1 7 days 14 days 21 days (Maximum time an area can remain open when the area is not actively being worked.) Type of Slope Time These areas include constructed storm water management pond side slopes, and any exposed soil areas with a positive slope to a storm water conveyance system, such as a curb and gutter system, storm sewer inlet, temporary or permanent drainage ditch or other natural or man made systems that discharge to a surface water. Street cleaning of soil tracked onto public streets should include daily street scraping and street sweeping as-needed. Surface Water Management Fees Since the proposed project does not require the subdivision of property, it is not subject to water quality and water quantity connection charges. Other Agencies The applicant shall apply for and obtain permits from the appropriate regulatory agencies, e.g. Minnehaha Creek Watershed District, Minnesota Pollution Control Agency, Minnesota Department of Natural Resources (for dewatering) and Army Corps of Engineers and comply with their conditions of approval. Planning Commission Westwood Community Church Case No. 04-20 June 15, 2004 Page 7 UTILITIES With no building expansion being proposed at this time, no utility improvements are proposed except for a short watennain extension under new West 7Sth Street at the southeast comer of the site. This watennain is meant for future development purposes. STREETS! ACCESS As a condition of approval for the development of the original Westwood Church project, a second driveway access at the intersection of West 7Sth Street was required to be constructed prior to any further development of the site. As such, Westwood Church is now Proposing to construct a secondary access to the site with the expansion of their parking area. To accompn~~ this, Westwood Church has ac uired the two 0 erties at the southeast comer of their site. .; The City is in favor of having a public street for a few reasons: it will provide an alternate access for church traffic to exit the site, it will provide a future access for the development of the property (Carlson/Brandt) west ofthe church's site, and it will provide a secondary access for the Dogwood Road residents in the future. The extension of West 7Sth Street is proposed as a 3 I-foot wide public street with concrete curb and gutter. The street has been shown within an SO-foot easement. A 10-foot wide bituminous trail is also included to provide pedestrianlbike access from future development to the west. The proposed trail will connect with the existing trail system on the east side of Highway 41. A financial security will be required to guarantee installation of the public improvements. In 2001, when staffwas previously considering the extension of West 7Sth Street, the Landscape Arboretum expressed no interest in the project or of having the road on their property. Because of this, the entire length ofthe proposed West 7Sth Street extension has been shown on the Church's ProPerty. This also necessitates the re-alignment ofthe existing West 7Sth StreetlHighway 41 intersection on the east side of the highway. The existing intersection does not line up with the proposed extension of West 7Sth Street. All of the necessary intersection and turn lane improvements will be completed with this project. The City has retained the services of a traffic engineer to look at the proposed intersection layout and ensure that it will operate effectively based on the uhimate development of the area. Staff hopes to have the results of this traffic study in time for the June 15,2004 Planning Commission meeting. As previously mentioned, Westwood Church is required to construct a 26-foot wide driveway with concrete curb and gutter, per City Code. The proposed access driveway to the existing church site from West 7Sth Street is labeled as a "Temporary Parking Drive" that is 24 feet wide with no curb and gutter. It is staff's understanding that the church intends to expand within the next five years but that there are no specific plans for future building locations and/or elevations. As such, staff would recommend that bituminous curb and gutter be added to the temporary driveway. Additionally, a condition should be included with this approval that prior to any future building expansion to the west side of the existing church building, the temporary access driveway from West 7Sth Street will be brought up to current standards in effect at the time. Planning Connnission Westwood Connnunity Church Case No. 04-20 June 15,2004 Page 8 RECOMMENDATION Staff and the Planning Commission reconnnend that the Plannmg Commission Chanhassen City Council adopt the following motions (A & B): A. "The Planning Commission recommends appro'.<al of Chanhassen City Council approves Planning Case 04-20 Site Plan Review for a ~l66-space parking lot expansion, extension of temporary drive and extension of West 78th Street, plans prepared by Pioneer Engineering, dated May 14,2004, subject to the following conditions: 1. The applicant shall enter into a site plan agreement with the City and provide the necessary security to guarantee erosion control, site restoration and landscaping. 2. Tree preservation fencing shall be installed around all existing landscaping at the edge of grading limits. 3. Any existing landscaping that is removed must be replaced when the parking lot construction is completed. 4. The landscape islands shall be filled with wood chips include mulch rings around the trees and be seeded or sodded elsewhere. 5. Overstory trees are required along West 78th St.; one every 30 feet. 6. Three accessible parking spaces must be added to the existing accessible parking area. 7. Wetland replacement shall occur in a manner consistent with the Minnesota Wetland Conservation Act (MR 8420). The applicant shall receive the City's approval of a wetland replacement plan prior to any wetland impact occurring. 8. A wetland buffer 0 to 20 feet in width (with a minimum average of 10 feet) shall be maintained around all existing and proposed wetlands (wetland buffers proposed for PVC must maintain a width of 16.5 feet). Wetland buffer areas shall be preserved, surveyed and staked in accordance with the City's wetland ordinance. The applicant shall install wetland buffer edge signs, under the direction of City staff, before construction begins and will pay the City $20 per sign. 9. All structures shall maintain a 40-foot setback from the edge of the wetland buffer. 10. The proposed development shall maintain existing runoffrates. Storm water calculations shall be submitted to staff to ensure runoff rates will not increase as a result of the proposed development. The applicant may work with the Arboretum to ensure their concerns are addressed. Planning Commission Westwood Community Church Case No. 04-20 June 15,2004 Page 9 11. Drainage and utility easements shall be provided over all existing wetlands, wetland mitigation areas, buffer areas used for mitigation credit and storm water ponds. 12. Erosion control blanket shall be installed on all slopes greater than or equal to 3: 1. All exposed soil areas shall have temporary erosion protection or permanent cover year round, according to the following table of slopes and time frames: Type of Slope Time (Maximum time an area can remain open when the area is not actively being worked.) Steeper than 3: 1 10:1t03:1 Flatter than 10: 1 7 days 14 days 21 days These areas include constructed storm water management pond side slopes, and any exposed soil areas with a positive slope to a storm water conveyance system, such as a curb and gutter system, storm sewer inlet, temporary or permanent drainage ditch or other natural or man made systems that discharge to a surface water. 13. Street cleaning of soil tracked onto public streets shall include daily street scraping and street sweeping as-needed. 14. The applicant shall apply for and obtain permits from the appropriate regulatory agencies, e.g. Minnehaha Creek Watershed District, Minnesota Pollution Control Agency, Minnesota Department of Natural Resources (for dewatering) and Army Corps of Engineers and comply with their conditions of approval. 15. All final plans must be signed by a registered civil engineer. 16. Use the latest version (2004) of the City's Standard Detail Plates. 17. The twin storm sewer culverts under West 78th Street must be RCP Class 5. 18. The existing driveway from Highway 41 to the existing homes in the northwest comer of the West 78th Street intersection must be removed and seeded or sodded 19. Include concrete drive>.vay aprons and pedestrian ramps for both proposed driveways off of new 'Nest 78th Street. 20. The new painted median for the eastbound West 78th Street traffic on the east side of Highway 41 must be a raised concrete median with pedestrian ramps. 21. Install a temporary turnaround with barricades and a sign stating "This street to be extended" at the west end of new West 78th Street. Planning Commission Westwood Community Church Case No. 04-20 June 15, 2004 Page 10 22. Provide a pedestrian ramp at the northeast comer of the new West 78th StreetlHighway 41 intersection for connection to the future city trail. 23. InCOrPOrate the conditions of the MnDOT review letter dated June 1, 2004 into the plans. 24. Show all of the proposed grades for the new driveway to the existing home in the southeast comer of the site. 25. A permit for the proposed retaining wall is required to be obtained from the Building Department and the wall must be designed by a registered structural engineer. 26. Off-site grading will require a temporary easement or right-of-entry agreement from the Arboretum. 27. Should earthwork quantities not balance on site and materials need to be imported or exported from the site, the developer will need to supply the City with a detailed haul route for review and approval by staff In addition, if material is proposed to be exported to another location in Chanhassen, it should be noted that the properties would be required to obtain an earthwork permit from the City. 28. All areas disturbed as a result of construction-related activity must be sodded and/or seeded and disc mulched within two weeks of disturbance. 29. A MnDOT drainage permit will be required. In addition, an NPDES permit and Watershed district permit will be required for the project grading. 30. Drainage and utility easements will be required over the wetland, pond, and the adjacent mitigation areas. An easement for access purposes will also be required for future maintenance of the wetlands. 31. Erosion control measures and site restoration must be developed in accordance with the City's Best Management Practice Handbook (BMPH). Staff recommends that the City's Type II silt fence, which is a heavy duty fence, be used adjacent to all existing wetlands and ponds. In addition, erosion control blankets should be used on all slopes 3: 1 or greater with heights of 6' or more. 32. A financial security will be required to guarantee installation of the public improvements. 33. Bituminous curb and gutter must be added to the temporary driveway. 34 Prior to any future building expansion to the west side of the existing church building, the temporary access driveway from West 78th Street must be brought up to current standards in effect at the time. Planning Commission Westwood Community Church Case No. 04-20 June 15,2004 Page 11 35. The raised mediaB OB 'Vest 78th Street OB the east side ofTH 41, whim is proposed to be removed:, shaD be replaeed iR the eeFFeet aligBmeBt with tile westward exteBsioB of West 78th.- 36. A sidewalk shall be extended along the main driveway from the main entrance of the church on the east side to the northern end of the driveway where the new parking lot ends and two diagoBal walkways similar to the Borthwest parkiBg let sidewalks shall be extended to the east through the landscape islands of the new parking lot. 37. Additional landscaping along the north side on Tanadoona Drive. 38. Require pub lie safety omeer to eOBtiBue workiBg the two iBtersemoBs as diFeeted by pub lie safety. The church shall continue to use a public safety officer to monitor and direct traffic from the church for three months following the completion of West 78th Street. After three months of observation, traffic operations shall be re-evaluated and the use of public safety officer shall be required as needed." B. "The Plaflfling COtIHlliSSiOfl recommeBds approval of Chanhassen City Council approves Planning Case 04-20 Wetland Alteration Permit to alter and fill wetlands on site, plans prepared by Pioneer Engineering, dated May 14,2004, subject to the following conditions: 1. The applicant shall develop an amendment to the wetland replacement plan to achieve the required 2: 1 replacement without employing credits constructed during the first phase. 2. Wetland replacement shall occur in a manner consistent with the Minnesota Wetland Conservation Act (MR 8420). The applicant shall receive the City's approval ofa wetland replacement plan prior to any wetland impact occurring. The applicant shall provide proof of recording of a Declaration ofRestrlctions and Covenants for Replacement Wetland. 3. A wetland buffer 0 to 20 feet in width (with a minimum average of 10 feet) shall be maintained around all existing and proposed wetlands. (Wetland buffers proposed for PVC must maintain a width of 16.5 feet.) Wetland buffer areas shall be preserved, surveyed and staked in accordance with the City's wetland ordinance. The applicant shall install wetland buffer edge signs, under the direction of City staff, before construction begins and will pay the City $20 per sign. 4. All structures shall maintain a 40-foot setback from the edge of the wetland buffer. 5. The proposed development shall maintain existing runoff rates. Storm water calculations shall be submitted to staff to ensure runoff rates will not increase as a result of the proposed development. The applicant may work with the Arboretum to ensure their concerns are addressed. Planning Connnission Westwood Connnunity Church Case No. 04-20 June 15,2004 Page 12 6. Drainage and utility easements shall be provided over all existing wetlands, wetland mitigation areas, buffer areas used for mitigation credit and storm water ponds. 7. Erosion control blanket shall be installed on all slopes greater than or equal to 3:1. All exposed soil areas shall have temporary erosion protection or permanent cover year round, according to the following table of slopes and time frames: Type of Slope Time (Maximum time an area can remain open when the area is not actively being worked.) Steeper than 3: 1 10:1 to 3:1 Flatter than 10: 1 7 days 14 days 21 days These areas include constructed storm water management pond side slopes, and any exposed soil areas with a positive slope to a storm water conveyance system, such as a curb and gutter system, storm sewer inlet, temporary or permanent drainage ditch or other natural or man made systems that discharge to a surface water. 8. Street cleaning of soil tracked onto public streets shall include daily street scraping and street sweeping as-needed. 9. The applicant shall apply for and obtain permits from the appropriate regulatory agencies, e.g. Minnehaha Creek Watershed District, Minnesota Pollution Control Agency, Minnesota Department of Natural Resources (for dewatering) and Army Corps of Engineers and comply with their conditions of approval." ATTACHMENTS 1. Findings of Fact and Reconnnendation 2. Development Review Application 3. Reduced Copy Site Survey 4. Reduced Copy Site Plan 5. Reduced Copy Parking Lot Construction 6. Reduced Copy Grading, Drainage & Erosion Control Plan G-l 7. Reduced Copy Grading, Drainage & Erosion Control Plan G-2 8. Reduced Copy Landscape Plan 9. Letter from Juanita Voigt, MnDOT, to Kate Aanenson dated June 1, 2004 10. Public Hearing Notice & Affidavit of Mailing g:\plan\2004 planning cases\04-20 - westwood community church spr & wap\staff report westwood doc CITY OF CHANHASSEN 7700 Market Boulevard PO Box 147 Chanhassen, MN 55317 Administration Phone 952.227.1100 Fax: 952.2271110 Building Inspections Phone 952.2271180 Fax: 952.2271190 Engineering Phone 952.227.1160 Fax 952.227.1170 Finance Phone: 952,227.1140 Fax 952.227.1110 Park & Recreation Phone 952,227.1120 Fax 952,227.1110 Recreation Center 2310 Coulter Boulevard Phone: 952,227.1400 Fax 952.227.1404 Planning & Natural Resources Phone 952,227.1130 Fax 952,227.1110 Public Works 1591 Park Road Phone 952227.1300 Fax 952,227.1310 Senior Center Phone 952.227.1125 Fax 952,227.1110 Web Site www.ci.chanhassen.mn.us November 15,2004 Mr. Bill Eggert Westwood Community Church 3121 Westwood Drive Excelsior, MN 55331 Re: W. 78th Street Oversizing - Project No. 04-14 Dear Bill: In accordance with previous discussions between the City and Westwood Church representatives, the City has agreed to reimburse the Church for the extra width or oversizing of new West 78th Street. This reimbursement will include costs for: 1. Oversizing W. 78th Street from a 26-foot driveway with concrete curb and gutter to a 31-foot bituminous street with concrete curb and gutter. 2. Ten-foot wide bituminous trail. 3. Additional wetland fill/mitigation due to street widening. 4. Additional ponding due to street widening. 5. Landscaping along W. 78th Street. 6. Additional engineering cost. Based on the attached construction bid from Midwest Asphalt Corp., the reimbursement total has been calculated below. 1.) Five-Foot Street Widening (from Stat. 0+20 to Stat. 14+29) a. Additional area calculation Length = 1429 ft. - 20 ft. = 1,409ft. Area = (length) x (width) = (1,409 ft.) x (5 ft.) x 1 sq. yd. = 783 sq. yds. 9 sq. ft. b. Total road section cost for additional area Bid Item Subgrade Prep. 24" Select Granular 12" Class 5 Agg. 2" Bituminous Base 1.5" Bituminous Base Cost/Sq. Yd. $ 0.35 $10.50 $ 5.85 $ 3.65 $ 2.85 $23.20 The City 01 Chanhassen · A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks A great place to live, work, and play W. 78th Street Oversizing November 15, 2004 Page 2 Pavement Cost = 783 sq. yds. x $23.20 = $18,165.60 sq. yd. Tack Coat Cost = 783 sq. yds. x .05 gal. x $1.85 = $72.43 sq. yd. gal. Total = $18,165.60 + $72.43 = $18,238.03 2.) Ten-Foot Wide Bituminous Trail (from Stat. 0+40 to Stat. 13+75) a. Trail length = 1,375 ft. - 40 ft. = 1,335 ft. b. Total trail cost: 10' bituminous trail = 1,335 ft. x $12.00 = $16,020 ft. 1 ped. Ramp = $425 Total = $16,020 + $425 = $16,445 3.) Wetland Fill/Mitigation a. Increase in street section width from driveway to street Width of driveway section = (26' drive) + (4' shoulder) + (4' shoulder) = 34 ft. Width of street section = (31' street) + (4' shoulder) + (9' blvd.) + (10' trl.) = 54 ft. Width increase = (54 ft.) - (34 ft.) = 20 ft. b. Increase in fill area Length of wetland at W. 78th St = 295 ft. Area = (length) x (width) = (295 ft.) x (20 ft.) = 5,900 sq. ft. c. % Increase Total amount of wetland fill = 30,033 sq. ft. % increase = 5,900 sq. ft. = .196 or 19.6% of the total fill area. 30,033 sq. ft. d. Unit volume cost for grading Total grading bid cost = $122,800 Total amount of cut volume = 55,000 cu. yds. Volume Cost = $122,800 = $2.23/cu. yd. 55,000 cu. yd. e. Cost for additional mitigation Total cut volume in mitigation area = 12,750 cu.yds. W. 78th Street Oversizing November 15,2004 Page 3 Total cost = (Total cut vol.) x (Vol. cost) x % increase = 12,750 cu. yds. x $2.23 x .196 = $5,572.77 cu.yd. 4.) Additional Ponding a. Dead storage pond volume required for 26' wide driveway from pond calculations of Doug Stahl at Pioneer Engineering Drainage area = 9.36 ac., CN = 86 Runoff, Q = (P - 0.2S)2 where P = 2.5 in. P + 0.8S S = 1,000 - 10 CN = 1,000 = 10 86 = 1.63 in. So, Q = r2.5 - 0.20.63)12 = 1.24 in. 2.5 + (0.8) 1.63 Total pond volume = Q (area) = 1.24 in. (9.36 ac.) x ~ 12 in. = 0.97 ac. ft. b. Dead storage pond volume required for 31 ' street from pond calculations of Doug Stahl Drainage area = 9.65 ac., CN = 87 Runoff, Q = (P - 0.2S)2 where P = 2.5 in. P + 0.8S S = 1,000 - 10 CN = 1,000 = 1.49 in. 87 = 1.49 in. So, Q = r2.5 - 0.2 (1.49)12 = 1.31 in. 2.5 + (0.8) 1.49 Total pond volume = Q (area) = 1.31 in. (9.65 ac.) x ~ 12 in. = 1.05 ac. ft. c. % increase in pond volume % increase = Vol. Street - Vol. Drivewav x 100% V 01. Street W. 78th Street Oversizing November 15, 2004 Page 4 = 1.05 - 0.97 x 100% = 7.6% 1.05 d. Cost for additional ponding Total pond excavation = 10,800 cu. yd. Unit vol. cost (see above, 3.) d.) = $2.23/cu.yd. Total cost = (total pond excavation) x (vol. cost) x % increase = 10,800 cu. yds. x 2.23 x .076 cu. yd. = $1,830.38 5.) W. 78th Street Landscaping Since this is not on the attached bid, the City will reimburse at typical prices for the trees below: Tree 2" Hackberry 2" Red Maple Quantity 23 21 Price $225 $247 Total Cost Total $5,175 $5,187 $10,362 6.) Additional Engineering Engineering costs are typically 12% of the project construction cost so, Total additional construction cost = $18,238.03 $16,445.00 $ 5,572.77 $ 1,830.38 +$10,362.00 $52,448.18 Total Engineering costs = $52,448.18 x (.12) = $6,293.78 Total Reimbursement = $52,448.18 +$ 6,293.78 $58,741.96 or $58,742 Based on the above calculations, the City will reimburse the Church $58,742 for the oversizing of W. 78th Street. Please review these calculations and let me know of any concerns you have. Upon hearing from you, I will schedule the request on a future Council agenda for approval. W. 78th Street Oversizing November 15, 2004 Page 5 If you have any questions, please contact me at 952-227-1164 or by email at msaam@ci.chanhassen.mn.us. Sincerely, CITY OF CHANHASSEN Matt Saam, P.E. Assistant City Engineer MS:js Attachment: Midwest Asphalt Bid dated July 30,2004 c: Paul Oehme, City Engineer/Dir. of Public Works g:\eng\projects\westwood church\w. 78th sL extension - #04-14\reimbursemenLdoc October 24, 2005 Dan Russ Welsh Development 7807 Creekridge Circle Minneapolis, Minnesota 55439-2609 Re: WESTWOOD CHURCH West 78th Street P.E. Job# 104049 Dear Dan: We have reviewed the November 15, 2004 City of Chanhassen letter regarding the West 78th Street oversizing. We feel there are a couple of additional items that should be included in the oversizing costs. 1. The grading costs for the increased size of the treatment basin and wetland mitigation areas have been included in the oversizing costs. The grading cost to build the extra 20' width to the roadway and trail was not. We calculated the additional fill required for the 20' extra width to be 3,889 cubic yards. Roadway grading cost = 3,889 cu yds x $2.23/Cu Y d = $8,671.91 2. Due to soft subgrade, the City of Chanhassen required additional subgrade correction and sand for the constlUction of West 781h Street. If the roadway were to remain private, this additional cost may not have been required. The Midwest Asphalt invoice for the removal and replacement for the unsuitable material is $14,329.00. Cost of 5' oversize on 31' roadway = 5/31 x 14,329.00 = $2,311.13 3. The additional 20' width required for the 31' roadway and trail will restrict the amount of parking and developable land for the future phase of the site. The loss of the 20' and associated setback from the right-of-way will result in the loss of future parking. The value of this land should be considered. The area of the total West 7801 Street right-of-way is 3.500 Acres. The area of the 20' oversizing width is 0.804 Acres. Cost of20' oversizing = 0.804 x 100,000 = $80,400.00 Please give me a call with any questions at (651) 681-1914. Sincerely, PIONEER ENGINEERING, P.A. Douglas A Stahl, P.E. DAS: jas CITY OF CHANHASSEN 7700 Market Boulevard PO Box 147 Chanhassen, MN 55317 Administration Phone: 952.227.1100 Fax: 952.227.1110 Building Inspections Phone: 952.227.1180 Fax: 952.2271190 Engineering Phone: 952.227.1160 Fax: 952.2271170 Finance Phone: 952.227.1140 Fax: 952.227.1110 Park & Recreation Phone: 952.227.1120 Fax: 952.227.1110 Recreation Center 2310 Coulter Boulevard Phone: 952.227.1400 Fax: 952.227.1404 Planning & Natural Resources Phone: 952.227.1130 Fax: 952.227.1110 Public Works 1591 Park Road Phone: 952.2271300 Fax: 952.227.1310 Senior Center Phone: 952.227.1125 Fax: 952.227.1110 Web Site www.ci.chanhassen.mn.us December 12,2005 Dan Russ Welsh Development 7807 Creekridge Circle Minneapolis MN 55439-2609 Re: Westwood Church/West nili Street Extension - Project No. 04-14 Dear Dan: On October 24, 2005 you forwarded a copy of Pioneer Engineering's letter regarding additional costs that Pioneer Engineering feels that the church should be reimbursed. Having not been involved in this project from the beginning, I looked through the files to find documentation stating what the City would reimburse. The three requests per the October 24, 2005 letter and the City's response are as follows: 1. Road grading costs: $8,671.91 The City's West nili Street widening reimbursement was based on the information submitted by Pioneer Engineering on August 4, 2004, which does not include grading costs. The City has money budgeted for the agreed upon reimbursable items only and therefore will not reimburse any money for the grading costs. 2. Additional subgrade cOlTection: $2,311.13 This is a reasonable request that staff will take to City Council for formal approval. 3. West nili Street right of way reimbursement: $80,400.00 Documentation in the City's file indicates that Westwood agreed to be the responsible party for the right-of-way acquisition required to extend West 78ili Street. Further, the "Permanent Drainage, Utility and Roadway Easement" signed by yourself and the City states that the reimbursement amount for the easement is $1.00, therefore, the City will not reimburse $80,400.00 for the easement acquisition. If you have any questions please call me at 952-227-1164. Sincerely, CITY OF CHANHASSEN ~~iu Alyson lauske, P.E. Assistant City Engineer c: Paul Oehme, City Engineer/Public Works Director Bill Bement, Engineering Teclmician IV The City 01 Chanhassen . A growing colii_}!wRjro~maR'i!~~8\\1i~)PJ~f?a-lmirlif_MIfI:ffitW~Ir@.H~~~ winding trails, and beautiful parks. A great place to live, work, and play. REIMBURSEMENT AGREEMENT AGREEMENT made this day of , 2006, by and between the CITY OF CHANHASSEN, a Minnesota municipal corporation ("City") and WESTWOOD COMMUNITY CHURCH ("Developer"). RECITALS A. On July 12,2004, the City approved Site Plan Permit 04-20 for a 166 space parking lot expansion, extension ofa temporary drive, and extension of West 78th Street. B. The City has agreed to reimburse the Developer certain costs for the construction of West 78th Street ("Street Project"). C. The Developer has completed construction of the Street Project and has conveyed an easement for the street to the City. NOW, THEREFORE, IN CONSIDERATION OF THEm MUTUAL COVENANTS, THE PARTIES AGREE AS FOLLOWS: 1. REIMBURSEMENT. In satisfaction of the City's obligation to reimburse the Developer for the Street Project, the City shall pay the Developer $61,053.09 and the Developer accepts as payment in full $61,053.09. CITY OF CHANHASSEN BY: Thomas A. Furlong, Mayor AND Todd Gerhardt, City Manager BY: 122787