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r <br />^ m Bonestroo <br />Rbsene <br />Anderlik& <br />|\|| Associates <br />Engineers & Architects <br />2335 West Highway 36 • St. Paul, MN 5SII3 <br />orrice: 651-636-4600 • Fax: 65I-636-I3II <br />www.bonestroo.com <br />P <br />June 10,2005 <br />Mr. Michael Qaffron <br />Planning Director <br />City of Orono <br />Poit Oflice Box 66 <br />Cryalal Bay, Minnesota 55323 <br />JOH i » <br />Re: WJM Properties Addition <br />Pile No. 000139-05000-0 <br />PlatNo. 05-3115 <br />Dear Mike, <br />We have reviewed the drawings for the revised parking lot and building addition at the Morries Automotive Group <br />property. The site is located at 2605 West Wayzata Boulevard. We have the following comments with regards to <br />en^neering nwtters: <br />• The pro po sed revisions to the paiking lot will direct more storm water easterly than shown on the previously <br />approved plan. Final plans should include revised storm water calculations 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 (iraitmge will reach the ditch. We <br />recommend that parking lot grades be a minimum of 1.5% and a maximum of 4%. <br />• Final 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. <br />• The previously approved plans showed curb and gutt' along the entire length oftheoccen driveway along the <br />•MSt side of the site. The revised plans show the curb only along the northerly 250-feet of the driveway. Tlie <br />final plans should clarify and provide detail os 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 die driveway at 30-fiset wide. It 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 die applicant to verify tlie <br />proposed hard cover if this is an issue. <br />• Final plain should include construction details such as pavement 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 amount of the financial guarantee required. <br />Please contact mo at (651) 604-4863 if you have any questions regarding this matter. <br />Yours veiy truly, <br />BONBSTROO, ROSENS, ANDERUK A ASSOCIATES, INC <br />Tom Kellogg <br />C Gr^Gappo. City of Orono <br />St. Paul, St. Cloud, Rochester, MN • Milwaukee, Wl ■ Chicago, IL <br />M AfflpfiMilliNr OfifMciwnlly fmplojNir mnI Empfoyv* Owtk«d <br />1 <br />J