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Bonestroo <br />Rosene <br />Andeiiik & <br />Associates <br />Engineers & Architects <br />May 5, 1994 <br />Ms. Jeanne A. Mabusth <br />Building and Zoning Administrator <br />City of Orono <br />Post Office Box 66 <br />Crystal Bay, Minnesota 55323 <br />Re: Liljequist Variance <br />File No. 139-1904 <br />Oiro G >one «Da <br />toom w 9otene Pi • <br />Joseph C AndP^ Pi <br />V^vin L Sorv«*»j P€ <br />8. njna i Vne* ► £ <br />Cne-r* • Coon Pi <br />Thomas E No^ Pi <br />9ooe*f G •£ <br />M EDe^ <br />*S«no ConsuOJric <br />A SjnM ^ <br />•t«h ^ GJ*OPh. <br />Room 8 Ptfitgftg PS <br />PKfxtnS W Powf. Pi <br />Djv <s O Loviora ^E <br />•ooea C 8une^ ^ ^ <br />a SotMlon P£ <br />Mart A Har»fon PE <br />Mcha?< T Ksmmjnn *»E <br />PE <br />Trxjmas 8 Anoe<iqn. A i ^ <br />Donaid C Bu^gaidt PE <br />T*x)mas E Angus PE <br />•inae^ PE <br />M<raet P tau PE <br />Pqr^ M ting AiCP <br />PNIO J Pyne Pf <br />Thomas W Pp»*ion PE <br />Mchaet C Lynch PI <br />ja'^ 9 Matand Pf <br />.erry 0 Pp'trsc ’^ PE <br />kon J Arganat. PE <br />•tanneth P AfxjMon. PE <br />Mart 8 8o8\. Pf <br />Mart A SpiO Pi <br />La^ ^ Moripr> P| <br />D^sie* J Eagerton Pi <br />A Pet Schmrt. Pf <br />Ph»Hp J Catvi«« PE <br />Mart O NAAtts PE <br />Man • jpnvn Pf <br />L PhAoG'awp* Pf <br />Aa<m L Wemen. p | <br />Gary O AnscoPa Pf <br />« ^Md Postpr Pf <br />AWh 8 Taoei PE <br />Oougias J S p «c p E <br />Shawm o Gusjhon. PS <br />CccPo Otvipf PE <br />Paul G Hpupr Pf <br />John P Goropr pf <br />Chartps A E.xtjkon <br />LPO M Paw^nay <br />Hanan m Own <br />James f Engpmamt <br />r/ <br />F—^IVED <br />MAY 9 1994 <br />.r ORONO <br />Dear Jearme, <br />We have inspected the property and reviewed the certificate of survey submitted with the <br />variance application for the proposed house on Eric & Shelly Liljequist s property. The <br />information shows that the proposed house will require approximately 625 cubic feet of fill to be <br />placed within the floodplain of Lake Minnetonka. The applicant has proposed to excavate <br />approximately 6 inches over a 36 feet by 35 feet area adjacent to Birch Lane as compensatory <br />floodplain storage. We do not recommend this location because it is has the highest elevation on <br />the lot. To qualify for floodplain storage, the excavation must take place bebw the floodplain <br />elevation of 931.5. To provide the 625 cubic yards required, the proposed location near Birch <br />Lane would first have to be excavated down to the 931.5 elevation, then lowered an additional 6 <br />inches to create floodplain storage. The total excavation in this location would be nearly 2 feet <br />in depth. <br />The side and rear yard areas presently have poor drainage. It is apparent that the low areas on <br />the lot drain solely by seepage into the soil. Although the proposed improvements will not <br />increase the runoff on the property, the drainage could be improved by excavating a shallow <br />ditch out to the lake. If the excavation is done either west or north of the house, nearly all of <br />the excavation would qualify as floodplain storage. The excavation should be graded to drain <br />around the west side of the house and out to the lake shore. <br />Prior to the work, silt fence should be installed near the lake for erosion control. The disturbed <br />area should be seeded or sodded shortly after the work has been completed. We see no adverse <br />impacts on the property from either the till placement or excavation, if it is done in this manner. <br />Please contact me at this office if you have any questions regarding this matter. <br />Yours very truly, <br />BONESTROO, ROSENE, ANDERLIK & ASSOCIATES, INC. <br />Shawn D. Gustafson, P.E. <br />2335 West Highway 36 • St. Paul, MN 55113 • 612-636*4600