Laserfiche WebLink
�� 2335 Highway 36 W <br /> r� St.Paul,MN 55113 <br /> i!" <br /> ,��� � � Te1651-636-4600 <br /> � ,� ,� / Fax 651-636-1311 <br /> / ' �/ <br /> - � ' www.bonestroo.com <br /> september 22, 2009 � • BOIIeStI'00 <br /> Christine Mattson <br /> Planning Assistant <br /> City of Orono <br /> Post Office Box 66 <br /> Crystal Bay, MN 55323 <br /> Re: 790 North Arm Drive <br /> File No. 000139-09000-2 <br /> Building Permit No. 2009-0474 <br /> Dear Melanie: <br /> We have reviewed the plans dated 9-1-09 for 790 North Arm Drive. The plan proposes to remove <br /> an existing stairway that crosses a property line and construct a new one within the applicanYs <br /> property. We have the following comments with regards to engineering matters: <br /> • Aerial photos show two significant trees located near the proposed stairway. These <br /> should be located on the plans. The concern is that field adjustments would be made <br /> and the stairway would be constructed within 10 feet of the lot line. <br /> • The maximum slope of the hill at the proposed stairway location reaches 1.75 feet <br /> horizontal to 1 foot vertical. This translates into a 10.5 inch run and a 6 inch rise for the <br /> steps. The step construction plans indicate a minimum 16 inch run to a 6 inch rise and a <br /> 12 inch minimum inside "permeable gravel" tread infill. These plans should be <br /> coordinated with the actual existing ground shown in the survey. <br /> If you have any questions, please call me at(651) 604-4894. <br /> Yours very truly, <br /> �-_„_._i��i�� <br /> Darren Amundsen <br /> Cc: Tom Kellogg <br />