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2335 Highway 36 W <br /> St.Paul,MN 55113 <br /> Tel 651-636-4600 <br /> Fax 651-636-1311 <br /> www.bonestroo.com <br /> February 19, 2008 eonestmo <br /> Ms. Evelyn Turner <br /> Planner <br /> City of Orono <br /> Post Office Box 66 <br /> Crystal Bay, MN 55323 <br /> Re: 1075 Tonkawa Road <br /> File No. 000139-08000-2 <br /> Plat No. A-11872 <br /> Dear Evelyn: <br /> We have reviewed the grading plans for 1075 Tonkawa Road dated 1-24-08. The plans propose to <br /> construct a new single family home. We have the following comments with regards to engineering matters: <br /> • The plans should show a structure(possibly a boat house)on the neighboring property to the <br /> north. <br /> • To the extent possible, runoff flowing north off the driveway and house should be diverted away <br /> from the existing Swale along the north lot line. <br /> • The house plans and the grading plan show different retaining wall scenarios at the southeast <br /> corner of the garage. The grading plan retaining wall is acceptable, however the retaining wall <br /> depicted in the house plan exceeds four feet in height and will require an engineered design. <br /> If you have any questions, please call me at(651)604-4894. <br /> Yours very truly, <br /> BONESTROO <br /> Darren Amundsen <br /> Cc: Tom Kellogg <br />