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� Bonestroo Z335 West Highway 3G • St. Paul, MN 55113 <br /> Rosene Office: G51-G3G-4GOQ • F�x:GS1-63G-1311 <br /> - Anderlilc& www.bonestroo.com <br /> Associ�tes <br /> Engineers&Architects <br /> August 19,2005 ��'r <br /> fM'�� 4 <br /> �Y,f� <br /> Mr.Michael Gaffron ����^� <br /> PlanningDirector /-�(/(� � 2 <br /> City of Orono 20�5 <br /> Post Office Box 66 ���`►��j�r- <br /> Crystal Bay,1Vlinnesota 55323 ���/�(� <br /> Re: WJ1VI Properties Addition <br /> File No. 000139-05000-0 <br /> Plat No. OS-3115 <br /> Dear Mike, <br /> We have reviewed the revised plans dated 8-12-OS for the parking lot and building addition at the Morries Automotive <br /> Groul�property.The site is located at 2605 West Wayzata Boulevard.\�Ve have the following conunents with regards to <br /> engineering matters: . <br /> • The proposed revisions to the parking lot witl direct more stonn water easterly than shown on the previously <br /> approved plan.The proposed street along the west side of the building drains to catch basins in the curb line <br /> and in the center of the proposed roadway.The catch basin in the center of the roadway should be relocated to <br /> the curb line.Final pians should include drainage and stonn sewer calculations to reflect the proposed parking <br /> lot and street designs. <br /> • Final plans should include a grading plan showing existing and proposed contours.Proposed contours should <br /> be provided for all improvements including those south and west of the existing building. <br /> • The street detail provided will not work with the proposed improvements sho�m west of the existing building. <br /> The detail sl�ows a cro�tmed street section that will direct water from half of the roadway towards the building. <br /> The street section along the west side of the building should not be crowned and show a cross slope of at least <br /> 2%away from the building. <br /> • rinal plans should include some type of best management practice to treat the storm water leaving the site <br /> prior to discharge into the existing ditch.These best management practices should be sized according to the <br /> drainage area to be treated.Caiculations should be provided to verify the design. <br /> • More detail should be provided for the existing draintile/storn�sewer system.lnfonnation sucll as inverts and <br /> the purpose of the catch basins shown on the slope between the 1016 and 1014 contours west of the building <br /> should be provided. <br /> • The plans should clarify whether the existing shed shown in the northeast corner of the parking lot expansion <br /> ar�a will rcr�;ain or will be removed. <br /> • The plans should clari£y how the drainage along the south lot line works.The contours on the plans submitted <br /> stop short of the south lot line and should be extended to at lelst 50-feet south of the south lot line. <br /> • Once the finai plans have been completed we will prepare an estimate of the total cost for the sitc <br /> improvements to deternline the amount of the financial guara►�tee required. <br /> Please contact me at(651)604-4863 if you have any questions regarding tl�is matter. <br /> Yours very truly, <br /> BONESTROO,ROSENE,AND�RLIK&ASSOCIATES, [NC. <br /> ��� <br /> To�n Kellogg <br /> C: Greg Gappa,City of Orono <br /> St. Paul, St. Cloud, Rochester, MN • Milwaul<ee, WI ■ Chicago, IL <br /> Affirmative Action/Equal Opportunity Employer and Employee Owned <br />