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Bonestroo Z335 West Highway 36 * St.Paul, MN 55113 � <br /> Rosene Office:651-G36-4G00 • Fax: 651-636-i311 � <br /> Anderlilc& www.bonestroo.com <br /> Associ�tes <br /> Engineers&Architects <br /> ��(��.1��� <br /> June 10,2005 <br /> �UN 1 � 2�05 <br /> Mr. Michael Gaffi-on �RO�(� <br /> Planning Director �1-�Y �� <br /> City of Orono <br /> Post Office Box 66 <br /> Crystal Bay,Minnesota 55323 <br /> Re: WJM Properties Addition <br /> File No.000139-05000-0 <br /> Plat No. OS-3115 <br /> Dear Mike, <br /> We ]�ave reviewed the drawings for the revised parking lot and building addition at the Morries Automotive Group <br /> properiy. The site is located at 2605 West Wayzata Boulevard. We have the following comments with regards to <br /> engineering matters: <br /> • The proposed revisions to the parking lot will direct more storn�water easterly than shown on the previously <br /> approved plan.Final plans should include revised storm water calctilations to reflect the new design. <br /> • Final plans should include a grading plan showing existing and proposed contours. <br /> • The narrative submitted with the drawing suggests sheet flow off the parking lot towards the existing ditch east <br /> of the lot.The parking lot design should include proposed grades to ensure drainage will reach the ditch.We <br /> reconnnend that parking lot grades be a minimum of 1.5°/n and a maximum of 4%. <br /> • Final plans should include some type of best management practice to treat the stonn water leaving the site <br /> prior to discharge into the existing ditch. <br /> • The previously approved plans showed curb and gutter along the entire length ofthe access driveway along tlze <br /> west side of the site.The revised plans show tl�e curb only along the northerly 250-feet of the driveway.The <br /> final plans sUould clarify and provide detail as to how the storm water will be dealt with along the driveway. <br /> • The driveway along the west side of the building was originally approved at 24-feet wide.The revised plans <br /> show the driveway at 30-feet wide.[t appears the revisions may increase the overall site hard cover from what <br /> was originally approved.The city may want to request hard cover calculations from the applicant to verify the <br /> proposed hard cover if this is an issue. <br /> • rinal plans should iuclude construciion details such as pavemeni sections,curb and gutter details,etc. <br /> • Once the final plans have been completed we will prepare an estimate of the total cost for the site , <br /> improvements to determine the amounC of the f nancial guarantee required. <br /> Please contact me at(651)604-4863 if you have any questions regarding this matter. <br /> Yours very truly, <br /> BONESTROO,ROS�NE,ANDERLIK&ASSOCIAT�S,:[NC. <br /> ____-- � <br /> �/p-r,'1 .�,��DC/ � <br /> Tom Kellogg <br /> C: Greg Gappa,City of Orono <br /> St. Paul, St. Cloud, Rochester, MN • Milw�ul<ee, WI � Chicago, IL <br /> Aff(rmative Action/Equal Opportunity Employer and Employee Owned <br />