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Christine Mattson <br /> From: Robert Bean <bobbe@bolton-menk.com> <br /> Sent: Wednesday, September 20, 2017 10:18 AM <br /> To: Christine Mattson <br /> Cc: Adam Edwards <br /> Subject: 2017-00940 - 500 Willow Drive South <br /> Christine, <br /> I have completed review of the information submitted for 500 Willow Drive South. Following are my comments for City <br /> consideration: <br /> 1. Perimeter erosion control measures should be installed by the Contractor and inspected by the City prior to any <br /> other work. Contractor should provide a minimum 24 hour notice prior to inspection. <br /> 2. Siltfence should be installed around the black dirt stockpile to prevent migration of sediment off-site. <br /> 3. Erosion control blanket should be installed on steep slopes after grading is complete. <br /> 4. Retaining walls 4'or greater in height require plans designed by licensed Professional Engineer. Multiple walls <br /> spaced less than double the height of the lower wall apart are considered one wall. The walls proposed on the <br /> northeast corner of the house are very close to requiring plans. If the height of walls are increased during <br /> construction, plans should be submitted at that time. <br /> 5. Contractor must exercise care during construction to not block traffic on Willow Drive. Clear drive lanes must be <br /> maintained at all times. <br /> 6. A permit from Minnehaha Creek Watershed District should be required for their Erosion Control Rule. A copy of <br /> the permit should be provided prior to any land disturbance. <br /> If you have any questions or comments, please contact me to discuss. <br /> Thanks, <br /> Robert E Bean Jr.P.E. <br /> Water Resources Project Engineer <br /> Bolton&Menk, Inc. <br /> 2638 Shadow Lane <br /> Suite 200 <br /> Chaska, MN 55318-1172 <br /> Phone: 952-448-8838 ext. 2892 <br /> Mobile: 612-756-3184 <br /> Bolton-Menk.com <br /> This email has been scanned by the Symantec Email Security.cloud service. <br /> For more information please visit http://www.symanteccloud.com <br /> 1 <br />