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Bonestroo <br />Rosene <br />Anderllk & <br />Associates <br />Engineers & Architects <br />January 9, 1991 <br />CtTC G <br />^Oiecn C Arc:?'' • -c <br />^ j 'E <br />^<^^.'0 t V'^ef <br />G ? Crc» “E <br />E ^E <br />SoC'f'T G "E <br />>jWO M C “ A <br />•^err' ^ Oo'Oon <br />? 'X- «=C5rer <br />Gcrj j C 3uf9^ PE <br />^ 3cuT3Crr «>E <br />V^nt A Hjrson PE <br />>d < P*ew «»E <br />r ff^utn'jrr PC <br />Pcv-"T p <br />O lOS aOCJ P£ <br />Tnomai \V #Vte»v:r p§ <br />C L.nc*' PE <br />.^fT>es P Milano PE <br />p 4noerv>r Pf <br />Vc>'« » Pcr*i. ‘’S <br />7cw*^ C PuSiC« A A <br />'---"Jl c r ;■ <br />*^0^.vjn0 A ^nforO P£ <br />j Ecce^on p £ <br />A Se-o PE <br />''”'"0 - CjiiAeii PE <br />vun.ne/ PE <br />O P£ <br />^AOr^JS P Ar\3<»)Ton A < A <br />G^rv P 9,ijf\y»’ PC <br />Vi'es 3 .frse^ pe <br />^ p^ >( £) ;. P£ <br />C P’urn^ A t A <br />Ag-'^S M A C P <br />^ffTv 0 Pp'trscn ®E <br />Cfc-c Cvie* PE <br />Poorr P D-fOANv PE <br />Gary X Mor>en P£ <br />Cranes a Encuson <br />Leo M Pj^Awcv <br />Hanan M O'sc^ <br />/ ; <br />r <br />I <br />r. <br />City of Orono <br />Box 66 <br />Crystal Bay, MN 55323 <br />Attn: File No. 139-1570 <br />Chuck Downey <br />Dear Jeanne, <br />JAN 11 1391 <br />We have reviewed the Chuck Downey application for installation of retaining walls. The plan <br />provides for approximately 75 feet of retaining wall on the property. Approximately 65 feet of <br />the wall will be located in the 0-75’ setback area. <br />The section of wall (25’±) next to the boathouse is necessary to prevent failure of the bank and <br />protect the boathouse. The remaining sections are to reduce maintenance problems in the yard. <br />The typical section for the wall should be strengthened by including a lower row of dcadmen <br />as shown^ offset from the top row at <S’ on center. <br />Tlie property owner should be required to provide erosion control fence between the work areas <br />and the lake. The upper wall could channelize the water and erosion problems would result. <br />The owners will be required to repair these areas and continue to protect the lake as neces.sary <br />after the work is completed. <br />Please contact this office if you have any questions. <br />Yours very truly, <br />BONESTROO, ROSENE, ANDERLIK & ASSOCIATES. INC. <br />Glenn R. Cook <br />GRC:li <br />Enel. <br />139.cor <br />2335 Highway 36 • St. Paul, Minnesota 55tl3 • 612-636-4600