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2335 Highway 36 W <br />St. Paul, MN 55113 <br />Tel 651-636-4600 <br />Fax 651-636-1311 <br />www.bonestroo.com <br />August 10, 2009 <br />Ms. Melanie Curtis <br />Planning and Zoning Coordinator <br />City of Orono <br />Post Office Box 66 <br />Crystal Bay, MN 55323 <br />Re: 1636 Bohns Point Road <br />File No. 000139-09000-1 <br />Plat No. 09-3417 <br />Dear Melanie: <br />#eonestroo <br />We have reviewed the grading plan for the construction of a new house addition dated 8-10-09. <br />The applicant has also submitted stormwater calculations dated 8-19-09. The plan includes <br />raising the existing driveway approximately 4.5 feet near the planned addition. We have the <br />following comments with regards to engineering matters: <br />• The stormwater calculations submitted show that the proposed modifications to the <br />house rooflines will direct a portion of the existing hardcover's runoff away from 1629 <br />Bohns Point Road. Runoff flows to the east to a low point in the driveway then to the <br />north and on to the neighboring property. However, these flows will be slightly less than <br />the existing conditions. <br />• Given the decreased volume and rate of stormwater directed to the neighboring <br />property, we find these plans acceptable from an engineering standpoint. <br />If you have any questions please call me at (651) 604-4894. <br />Yours very truly, <br />Bonestroo <br />Darren Amundsen <br />Cc: Tom Kellogg