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vj <br />Bonestroo, Rosene, Anderlik & Associates, Inc. <br />2335 W. Trunk Highway 36 <br />St Paul, MN 55113 <br />612-6364600 <br />Engineers A Architects <br />Oita O. Bowtttrvo, P E. <br />H0btft W. St^aeme. P t <br />Juupk C. Amt0rfM, P t. <br />Bfed/ved A Lrmbrrg, P.E. <br />PKhere £, Tunm. P.E. <br />Jmmta C. Otum, P.E <br />September 17, 1987 <br />City of Orono <br />Box 66 <br />Crystal Bay, MN 55323 <br />Attn: Ms. Jeanne Mabusth <br />Re: File No. 139-1201 <br />Hilbelink-Vogt Preliminary Plat <br />OtM K Coot, p e. <br />knth A Gotiium P <br />JktMmn E Wu/f*. P 1. <br />W. footer. PE. <br />kobert L Sthunmhi P E. <br />1. Sonmia. P.t <br />DonekIC. Burgefdi. P.E. <br />Jerry A Bottnhn, P E. <br />Mark A. Menum, P E. <br />Ted K Freki. P E. <br />Mu keel T keetmeen, P E. <br />Huberi P PJrJJrrk. P L <br />Uurtd O LuUuta. P E. <br />Ikomaa W. Peterum. P E. <br />MukeelC Lyrek, P.E <br />kuren L Wdte. P E <br />Jurrtti P MrUeed, P E <br />kenmerk P Aederum, P E. <br />kfttk A. Beikmmrrr. P E. <br />Murk P Poifit P t <br />Pubert C. Puxiek, A I.A <br />Tkomea t. Amgm, P.t. <br />Siutt L Young. P E. <br />Ckurtei A trukutn <br />Leo M PuwtiUy <br />Huilee M. Oiutn <br />M Ebertin <br />Dear Jeanne, <br />We have reviewed the Hilbelink-Vogt Preliminary Plat. The plan as submitted <br />is acceptable with provisions tor controlling the site runoff. <br />The property owner should provide a 20 foot wide drainage easement over the <br />entire drainage ditch within the plat. <br />The owner should provide a 15'* diameter culvert beneath the access in the <br />ditchline of Old Crystal Bay Road. A 15” culvert should also be provided in <br />the low area beneath the proposed roadway so that surface water can he direc­ <br />ted to the drainage ditch. <br />We did t t complete a hydraulic analysis for the watershed to determine cul <br />vert size. We simply observed the existing culverts in the area. <br />Roadways should be completed in developing this plat; proposed roadways should <br />be constructed through the Peterman Second Addition and the Woodhaven Addition <br />to complete the road network in the area. <br />Yours very truly, <br />BONESTROO, ROSENE, ANDERLIK & ASSOCIATES, INC. <br />Michael C. Lynch <br />MCL:li <br />66l9e