11-19-2007 Planning Commission Packet

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, � PC Exhibit F St.Paul,MN 55113 Tel 651-636-4600 Fax 651-636-1311 www.bonestroo.com November 1, 2007 �Bonestroo Ms. Evelyn Tumer ' Planner � City of Orono • Post Office Box 66 Crystal Bay, MN 55323 Re: Stonegate Farm File No. 000139-07000-1 Plat No. 07-3332 , Dear Evelyn: We have reviewed the plans for the proposed Stonegate Farm development located at 2940 County Road 6, dated 10-17-07, The plans propose to create a six-lot residential development. We have the following comments with regards to engineering matters: Plat • Perimeter drainage and utility easements 10 feet wide along all exterior lot lines and 5 feet wide along all interior lot lines should be provided, . • Drainage easements should be provided over all wetlands, ponding areas, and drainageways, including rain gardens. . • The road right of way should be 50 feet wide and the cul-de-sac should have a 50 foot radius. • A 20 foot wide utility easement should be provided over the proposed watermain. • An easement should be provided over Lot 3, Block 2 to allow access for Lot 2, Block 2. � Hennepin County will review the right of way requirements for CSAH 6 and County Road 201 or Homestead Trail. . . Site Plan . • Any removals of existing structures or trees should be called out on the plan. • A geotechnical report, R-value recommendation, and pavement design should be submitted for review and approval, � Grading, Drainage and Erosion Control Plans • The plans should state the source of the topographic information shown, • A profile should be provided for the proposed road. • The proposed road should have a crown in it, and ditches should be graded alongside the roadway. It may be necessary to install one or more culverts to route runoff from the south side of to the north. These should be shown on the plans. • The plans should show the existing trail and storm sewer along CSAH 6.