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' . ' ' . :�„. <br /> e , u �e� � �' � .�' 2335 Highway 36 W <br /> `;= 4 F :� �,* y�4.�t St.Paul,MN 55113 <br /> Tel 651-636-4600 <br /> Fax 651-636-1311 <br /> www.bonestroo.com <br /> � Bonestroo <br /> June 17, 2008 <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: 577 Park Lane <br /> File No. 000139-08000-1 <br /> Plat No. 08-3347 <br /> Dear Melanie: <br /> We have reviewed the revised plans emailed to us by Evelyn Turner on June 13, 2008 for the proposed <br /> stairway construction. We have the following comments with regards to engineering matters: <br /> • The erosion control narrative provided discusses removing all vegetation on the first day and <br /> installing the proposed plantings once the hardscape portion of the project is completed. The <br /> narrative then goes on to discuss the installation of silt fence immediately and installing sediment <br /> logs in areas not being worked on. This may work but will require diligence on the contractor's <br /> part to maintain the erosion controls on a daily basis. We recommend that the city monitor the <br /> project closely in the beginning and after every rainfall to verify the contractor is properly <br /> maintaining the erosion control. <br /> • The erosion control narrative calls for using "organic erosion control blanket" but does not <br /> indicate the type. The plans should specify Type 2S erosion control blanket with biodegradable <br /> organic netting on both sides, not a netless blanket. <br /> • The proposed grading and associated retaining walis appear to be acceptable and will not <br /> adversely affect the neighboring properties if completed according to the plans submitted (dated 6- <br /> 12-08). <br /> If you have any questions, please call me at(651) 604-4894. <br /> Yours very truly, <br /> �----. �,� <br /> �--..�� .i __� <br /> Darren Amundsen <br /> Cc: Tom Kellogg <br />