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r <br />V <br />Bonestroo <br />Rosenc <br />AnderOcft <br />«• <br />I « % • <br />^1^ Associates <br />Cngtivm A Arcfstrtti <br />f <br />t C <br />• • <br />€ <br />• ' mf' <br />•• # •• <br />»( <br />9 <br />%f« ««• <br />< <br />I • <br />• • <br />• M «• <br />* €4 <br />tm a 1993 <br />SK leasur A Nt4b«»ili. <br />Bvildiaf aa«J /AMUfig AJdlsktratm <br />Cify oi Offseo <br />Post Office Box ^ <br />Cryxtal B«>', Mmntwta 55323 <br />Re: Robert 0*ew Sbtirctee RrputF <br />File! Not 139-18381 <br />Dcir ieisoe. <br />Sabseqneni to ooi tmpectiofi la^l Ffi4jiy, '** bJi'e prepared tbis letter regardmg the <br />propa?rd shoretoe repair and reUining wai on Robert 0«ens ’ property. The proposal <br />b to construct a limber retaining x^all at the lop ul a 3 1 (honzontal to vertical slope <br />The presKHisiy con.%tructed embankment ccmstnictcd at a l;l or 1.5:1 slope and lia.s <br />subsequentK failed We feel that the prc^KJScd 3:1 tiopes and 4 to 6 ftx>t >»a’: b feasible <br />but more detailed plans will be needed. The waH will need geogrid lies or another <br />approsed support sy-stem. <br />W'e do not recommend timber retaining waUi Ui oi permanent Kjlutk>n. Ccacrcle <br />modular bkxk rcUining waUi are a more permanent and expensive opfk>o that should <br />be considered for this applicatkin. <br />Please contact me at thb oCEke if you have any quesfioni regarding this matter <br />Yours very truly. <br />B0NE:S I R(K). ROSKNE AKDERLIK & ASSOCIATES. INC. <br />Mau«rKi <br />Shawn D. Gustafson. P E. ^ <br />2335 West Highway 36 • St. Paul. MIM 55113 • 612-636-4600 <br />f