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2335 Highway 36 W <br /> St Paul,MN 55113 <br /> Tel 651-6364600 <br /> Fax 651-636-1311 <br /> wwwbonesbm.aom <br /> June 2,2011 Bonestroo <br /> Melanie Curtis <br /> Planning and Zoning Coordinator <br /> City of Orono <br /> Post Office Box 66 <br /> Crystal Bay, MN 55323 <br /> Re: 450 Willow Drive <br /> File No. 000139-11000-1 <br /> File No. 11-3507 <br /> Dear Melanie: <br /> We have reviewed the plans for a proposed addition to the existing home at 450 Willow Drive. <br /> The plans are dated 4-28-11. We have the following comments with regards to engineering <br /> matters: <br /> • The site plan is acceptable from an engineering standpoint. <br /> • The proposed retaining wall is shown as 4.0 feet in height. If field changes increase the <br /> height,engineering design and details must be submitted to the city. <br /> • This project will disturb more than 100 CY of material. Sediment and erosion control <br /> information meeting the requirements of Orono's City Code 79-7(c)(2) must be <br /> submitted. The minimum$2000 sediment and erosion control financial security should <br /> be required of the owner for this permit. <br /> If you have any questions, please call me at(651) 604-4894 or send an email to <br /> darren.amundsenO bonestroo.com. <br /> Sincerely, <br /> BONESTROO <br /> 1 <br /> Darren Amundsen <br /> Cc: Tom Kellogg <br /> Chris Mattson <br />