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" � � <br /> 2335 Highway 36 W <br /> St.Paul,MN 55113 <br /> Te1651-636-4600 <br /> Fax 651-636-1311 <br /> www.bonestroo.com <br /> ]anuary 28, zo�o � Bonestroo <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: 915 Partenwood Road <br /> File No. 000139-10000-2 <br /> File No. 10-00044 <br /> Dear Melanie: <br /> We have reviewed the plans for the proposed new home construction at 915 Partenwood Road. <br /> The plans are dated 1-20-10. We have the following comments with regards to engineering <br /> matters: <br /> • The proposed tiered retaining walls on the west side of the proposed driveway are eight <br /> feet high. Engineered design and details should be submitted for review and approval <br /> for all retaining walls over four in height, and for all tiered walis with a separation of less <br /> than two times the wall height. <br /> • A wetland is has been conservatively located in the southwest corner of the property by <br /> John Smyth at the City's request. The project grading will not impact the wetland buffer <br /> areas. <br /> • Please see the attached memo from dated 12-8-09 from John Smyth for additional <br /> wetland buffer information and requirements. <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.amundsenCcc�bonestroo.com. <br /> Yours very truly, <br /> `�J�_--;--�-'� <br /> Darren Amundsen <br /> Cc: Tom Kellogg <br /> ]ohn Smyth <br />