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1 <br />m <br />mk__jmm <br />Bones troo <br />Rosene <br />Anderlik & <br />Associates <br />Oto G PE <br />^cC'f'T A, f ®E <br />Ajseon C Anocfitk Pg <br />L Soryata PE <br />P<rarO 6 Vr^ ?E <br />Gcr- ? CccK. »£ <br />•.*X5r^ai £ Noyei P£ <br />G ScrK«n<nf P£ <br />Susan M E^f^ C P^ <br />Engineers & Architects <br />A Gcycon PE <br />P<naAl W PosTff P£ <br />OonjK) C B u ^qmc X. PE <br />>nv A dourlon PE <br />V«^ A *-*a»tU)r PE <br />>J < **£ <br />»(X)^ P PE <br />Oawd O Los»cota. PE. <br />Thcmas w Pwwn. PE <br />Mcnaei v. Lynch PE <br />Jan« ff ft^aiaod p£. <br />P ®E <br />Va « 9 aa^j P£ <br />«oocn c Pirise*. A i a <br />Tfyyr^l £ Angui PE <br />►«i>vara A sar^. rg <br />G i''-r J Eagrtcn. PE. <br />A iea P£ <br />Ph4c ; Casv^ P£ <br />•smae^ MaToe?. »£ <br />Viar* D Waai P£ <br />TNyn^s P ^nctnon. AlA <br />Gary E Pytaroer Pg <br />B »£ <br />^ ii) Qn^ *5 <br />P>pne C P*umaa A i A <br />A^r« M P«ng A ' C P <br />Jerry D Pwsr** P£ <br />Crc-o 0 i r ®E <br />aooert P D tcovv p£ <br />Gary w Mor^ ®£ <br />Cr anes a £r cr-ic** <br />Leo M P»%euy <br />Hanao M Otson <br />April 3, 1991 <br />City of Orono <br />Box 66 <br />Crystal Bay, MN 55323 <br />Attn: Ms. Jeanne Mabusth <br />Re: Navarre Service Station <br />Variance Application #1635 <br />Our File No. 139-1635 <br />Dear Jeanne: <br />We have reviewed the proposed expansion of the Navarre Service Station to create a new <br />equipment and storage room. Site drainage and constructability factors are the significant <br />engineering issues. <br />The proposed storage room expansion is 25’ x 10’. The construction of the room will necessitate <br />removal of part of the e.xisting timber retaining wall and fence along the east side. The <br />construction will also block the only available drainage route for the south parking lot. We <br />recommend that a bituminous drainage swale be constructed along the east side of the proposed <br />expansion. The swale should be a minimum of 3 ’ wide to allow for snow removal. The <br />construction of the swale will require that the retaining wall and fence be reinstalled <br />approximately 4’ to 6’ east of the present location. We recommend that the large existing <br />cottonwood trees be removed as they would present a safety concern because much of the root <br />foundation needed to support the trees in strong winds wouid be removed. <br />The owner should be required to provide a new plan with the modified drainage swale, retaining <br />wall and fence location shown. The bituminous swale should be sloped away from the building <br />at a l/2"/ft. slope. The swale, retaining wall and fence should be tapered back at both ends of <br />the building to allow a smooth transition into the existing topography. (See attached sketch). <br />Please contact this office if you have any questions. <br />Yours very truly, <br />BONESTROO, ROSENE, ANDERLIK & ASSOCIATES. INC. <br />Shawn D. Gustafson <br />SDG.'li <br />2335 West Highway 36 • St. Paul, Minnesota 55113 • 612-636-4600 HWf <br />i