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\ •m Bonestroo <br />GOB Rosene <br />TO AnderJik &m Associates <br />Engineers & AKhliecM <br />2335 West Highway 36 • Si Paul. MN 55II3 <br />Office 65l*63r>*4600 * Fax: 651-636-I311 <br />wwvvhon^stfoo com <br />November 30, 2004 <br />Ms. Janice Gundlach <br />Planner <br />City ofOrono <br />Post Office Box 66 <br />Crystal Bay, MN 55323 <br />Re; 1625 Bohns Point Road <br />File No. l39-04-(K)0 <br />Plat No 04-3042 <br />Dear Janice: <br />We have reviewed the revised grading plans dated 11-23-04 prepared by David Tiippcr and A.ssociaies for the home <br />constructed at 1625 Bohns Point Road. The giading plan includes as-built survey information provided by Gionbcrgand <br />Associates. Proposed revisions to the giading include constiuchon of swales along the noith lot line to convey storm <br />water m accordance with the previously approved building pennit grading plan. We have the following comments with <br />regards to engineering matlcrs: <br />Sheet L5 <br />• The pioposcd swale along the noith lot line from tlic high point (940.50) vvcslcily should be extended to the 934 <br />contour Grading of the 934 contour should direct storm vs aler soulhvvcsicrly across the subject propcity and not <br />onto the property to the north. <br />• Notc.s pertaining to the diairitilc installation in the svsalc and associated rock backfill should include language <br />that sUUes the rock backfill in the drainlile trench shall be at an elevation that is no higher than I -foot below ilic <br />top of the swale to prevent water from flowing north. <br />• The grading plan should include proposed swale grading easterly from the high point (940.50) beginning at the <br />940 contour to convey storm water on the subject property towards the existing pond. <br />Sheet L6 <br />• As noted above, the swale along the north lot line should be graded easterly beginning at the 940 contour and lie <br />into the proposed swale grading showTi at the 935 contour. <br />General <br />• Once the grading and associated restoration is completed a revised as-built drawing should be provided to the <br />city for review and approval <br />• Sill fence and any other necessary erosion control measures should be installed, inspected and approved by city <br />staff prior to any woik on site. <br />If you have any questions please call me at (651) 604-45<6T <br />Yours very truly. <br />BONl SI ROO. ROSENli, ANDF.RUK ^ ASSOCIATES. INC. <br />Tom Kellogg <br />Cc: Greg Gnppa, City of Orono <br />Bruce Vang. City of Orono <br />• Sr Paul St Cloud. Rocnester Willmar. MN • Milwaukee. Wl • Chicago, It <br />Affirmuttv* AcliO'^ Opooftunily Cmpioytr Cmpiojr**