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Bonestroo <br />Rotene <br />AfKlerlik& <br />Associates <br />gnginttri S ArcMtt<ts <br />I OpMm—1» <br />Febniaiy2S. 2004 <br />Ms. Melanie Cuitis <br />Planner <br />CityofOrono <br />Post Office Box 66 <br />Crystal Bay. MN 55323 <br />Re: M7 Tonkaw;: <br />File No. 139-04-000 <br />Plat No. 04-2986 <br />■ »WWK». Awa«n> M*. M an amn <br />ana Onwaa <br />rtmdaala Glia O lanaMrae H • tttnxn L Un>au Af • Cannl Cooa. »t • toMfi 0 n • <br />Mfff A tai^aan N • Mark A Mar*ian n <br />SaMar Can«Mliania: aMan w lokana H • JaM»n C Antfarta. af • a>crta>« I l^«ar. H • Wtan M laarvi C »a <br />Aitactait PrmcMaia (aaA A Ooraon kf • aaoa>i > a%*r^ at • aan«>« ar 'oiiar at • d#«m O Lowaia At • <br />ka«natr r ■autatann *!•%«• a«<a af • aannain a Anar’ian at • kka>* a aaA. af . a Aarwtiraa k« ■ a <br />a wnaaiMn at. LS • A^nai M a«>f Mt A . Aa«. a<« S<nn«ai *1 • Tt^amai M atia>ien at • <br />>«»att Waiana at • aaiaiA Jr*tan a| . ^ an.no&a«arai ai . Oona* J fatt>ia» At • HaMar ikana^t At • <br />rmraaa A l.t.* at . taa<oan. Mr«non . Oaw a Qro»a af . Tnonwt A Bosnaar at • tMMt a OMra <br />OffKta l< aaM M da.* BacntM*' an* oratnar mt. or. cn<««* A <br />MMiar •wnMnaKfMrwn <br />epHiBir ^ <br />Dear Melanie: <br />We have reviewed the plans and spccificaiions for ilie proposed shoreline improvements at 847 <br />Tonkawa. The proposed improvemems include replacing some deteriorating steps to the lake <br />and the removal and replacement of a timber retaining wall. The wooden steps will be replaced with <br />granite steps and boulders will replace the existing timber retaining wall. We have the following <br />comments with regards to engineering matters: <br />• The ptoposed walls will not exceed 3-fect in height and will be screened with vegetation. <br />The wall construction is acceptable from an engineering standpoint provided the installation <br />is in accordance with the plans and specifications provided. <br />• Heavy duty silt fence with steel t posts must be installed along the shoreline inunediatefy to <br />protect the exposed slope. Tlic silt fence should be maintained throughout the conatniction <br />process and remain in place until the slope is stabilized and vegetation is established. <br />If >Tit: haw .v.y questions pi-ase cpII me a» (651) 604-4R63 <br />Yours very truly, <br />BONESTRCX), ROSENE, ANDERLIK & ASSOCIATES. mC. <br />Tom Kellogg <br />Cc: Greg Gappa, City of Oiono <br />233S West Highway 30 • Si. Paul. aSN SSttI • 431*634*4600 • Pan: 431*434*1311