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Bonestroo <br />Rosene <br />Anderlik & <br />Associates <br />Engineers & Architects <br />April 12. 1989 <br />O ro G Bonestrea PE <br />(kowt W Ooiene. PE <br />Jotepn C AixJcn*. PE <br />Bndfota A Letnoefg. PE <br />p<na«d E TUnef P£ <br />C OHon PE <br />G^ » Coo*. PE <br />Thomas E Noyes. PE <br />tooeft G Schuntcfw. PE <br />Marvm L SorvaU. PE <br />KMh A Go*ooo PE <br />«<ha«> W Foswf. PE <br />OonakJ C Bui^aidL PE <br />Je»ry A 8ou«Jon PE <br />Milk A Hanson PE <br />ltd K Field. PE <br />Michael r Raucmarm PE <br />RDOert « Pitfflene. FE <br />Oavnd O Loskoca. PE <br />Thomas W Petefson pe <br />Mchaei C Lynch P£ <br />James > Maiand PE <br />Kennetn P Anoenon. PE <br />KMh A Bachmann PE <br />Mac* R Rott PE <br />PoOeft C SuSSCK AI A <br />Thomas E Angus. PE <br />Howam A Santocd PE <br />Oamei J Edgerton PE <br />Mac* A Se<i PE <br />Phi*o J Caswell PE <br />Mam O U4lbi PE <br />Thomas R Anaenon. AIA <br />Gify F RyUnaer PE <br />Cl anes A Encwon <br />Leo M Panse-iky <br />Hartan M Oison <br />Susan M EOenm. CPA <br />City of Orono <br />Box 66 <br />Crystal Bay. MN 55323 <br />Attn: Ms. Jeanne Mabusth <br />Re: File No. 139-1396 <br />Minnetonka Boat Works <br />Dear Jeanne. <br />We have reviewed the plan submitted for the Minnetonka Boat Works at 1449 <br />Shoreline Drive. The project would provide for expansion of the parking area <br />and control of the site runoff. <br />The parking lot grading plan should be modified to provide a minimum one <br />percent grade. The area between the parking lot and the lake should be a <br />minimum of six inches higher than the parking lot. Precast concrete bumper <br />curbs should be required around the parking lot. We would also recommend that <br />the parking lot be paved to minimize the runoff of silt into the ponding area. <br />The proposed drainage plan and ponding area is generally adequate. The storm <br />drainage detail provided to collect the surface drainage may be a problem. I <br />feel that the proposed drainage system would plug up. The concern would be <br />that once the system plugged up that part of the parking lot would be allowed <br />to drain directly to the lake. This concern could be addressed by modifying <br />the parking lot grades to provide greater protection. <br />If you have any questions, please contact this office. <br />Yours very truly. <br />BONESTROO, ROSENE, ANDERLIK & ASSOCIATES, INC. <br />Glenn R. Cook <br />GRC:li #1 ^ Q i. <br />2335 West Highway 36 • St. Paul, Minnesota 55113 • 612-636^600