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2335 West Highway 36 • St. Paui, MN 55113 <br /> Bonestroo � <br /> Rosene Office: 651-G36-4600 • Fax: 651-G36-1311 ^^ <br /> AllC�et'�I�C& www.bonestroo.com <br /> Associ�tes <br /> Engineers&Architects <br /> December 15, 2005 <br /> Ms. Janice Gundlach ��``1`�`��"�"' <br /> �����:;i;!�-..;: <br /> �7�:".,h_1: <br /> City of Orono lJ�~�M1 �� �' ZOd` <br /> ���, ��� 5 <br /> Post Office Box 66 �' " :-,.;,.. <br /> Crystal Bay, MN 55323 �'`^'��`E`'<�,', <br /> Re: 4017 North Shore Drive <br /> File No. 000139-05000-0 <br /> Plat No. OS-3159 <br /> Dear Janice: <br /> We have reviewed the grad'uig plan for the proposed improvements at 4017 North Shore Drive.The <br /> proposed improvements include the construction of a new home and garage along with associated <br /> site grading. We have the following coirulients with regards to enguieering inatters: <br /> � The proposed grading plan shows side yard swales that approach a 40% grade. Grades that <br /> exceed 33%(3:1)present maintenance problems and we recoirunend the slopes be reduced to <br /> a maximum of 3:1. <br /> • Final plans should include swale stabilization details. At a minimum the swales should be <br /> staked with sod. <br /> � If tlie proposed retaining walls exceed 4-feet in height or if the horizontal separation between <br /> the walls is less than two times the wall height separate engineered design and details should <br /> be submitted for review and approval. <br /> • Erosion and sediment controls should be shown on the plans. These controls should be <br /> installed, inspected and approved by the city prior to any work on site and remain in place <br /> until all work is completed and vegetation has been established. <br /> If you have any questions please call me at(651) 604-4863. � <br /> Yours very truly, <br /> BONESTROO, ROSENE, ANDERLIK &ASSOCIATES, INC. <br /> ._--- <br /> ��r�'� <br /> Tom Kellogg <br /> Cc: Greg Gappa, City of Orono <br /> St. Paul, St. Cloud, Rochester, MN • Milwaul<ee, WI • Chicago, IL <br /> Affirmative qckion/Equal Opportunity Employer and Employee Owned <br />