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• � BOLTON � M �N K , I NC� <br /> . � Consulting Engineers & Sunreyors <br /> �� � 2638 Shadow Lane, Suite 200•Chaska, MN 55318-1172 <br /> Phone(952)448-8838• Fax(952)448-8805 <br /> www.boiton-menk.com <br /> Juty g,2014 <br /> City of Orono <br /> Attn: Melanie Curtis <br /> 2750 Kelley Parkway <br /> Orono, MN 55356 <br /> RE: Building Permit Number 13-00471 <br /> 4315 North Shore Drive <br /> Engineering Review#1 <br /> Dear Melanie: <br /> As requested, we have completed an engineering review of the documents submitted for the above <br /> referenced project. Our current review is based on the following submittal items: <br /> • Final Construction Plans prepared by SKD Architects, dated 6/5/2013 <br /> • Certificate of Survey prepared by Gronberg&Associates, Inc., dated 7/30/2013 <br /> We offer the following observations, comments,and recommendations for your consideration: <br /> 1. The plans show grading work outside the proposed silt fence line. Any proposed silt fence should be <br /> installed outside the construction]imits. <br /> 2. The plans show a loose laid retaining wall on the west side of the pool, and appear to indicate <br /> retaining walls in other locations around the pool,as well as near the detached garage, for which no <br /> plans have been submitted. Retaining walls four feet or greater in height must be designed by a <br /> Professional Engineer, and plans submitted for review and approval. The plan should be revised to <br /> provide more detail for all proposed retaining wall work. Provide top of wall and bottom of wall <br /> elevations in key locations(i.e. grade changes and alignment changes). <br /> 3. Perimeter erosion control devices should be installed and inspected by the City prior to any land <br /> disturbing activities. <br /> 4. Disturbed areas should be permanently stabilized within 7 days of completing construction. <br /> 5. The proposed pool has a footprint of 512 square feet. Any pools larger than 1,000 square feet are <br /> subject to special setback restrictions(Sec. 78-1404). <br /> Please let me know if you have any questions or need additional information. <br /> Sincerely, <br /> BOLTON & MENK, INC. <br /> �� �� � <br /> Brian D. Simmons, P.E. <br /> Project Engineer <br />