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� � r , Bonestroo,Rosene,Anderllk and Assoclates,Inc.Is an Afflrmative/lctlon/Equal Opportunity Employer
<br /> ' � Bonestroo Otto G.Bonestroo,P.E. Howard A.San/ord,P.E. Michael C.Lynth,P.E. Brlan K.Gage,P.E.
<br /> Rober[W.Rosene,P.[.' Keith A.Gordon.,P.E. James R.Ma�and,P.E. F.Todd Foster,P.E.
<br /> �� Rosene Joseph C.Anderlik,P.E. Robert R.Plet(erle,P.E. Jerry D.Pertzsch,P.E. Kelth R.Yapp,P.E.
<br /> Marvin L.Sorvala,P.E. Richard W.Foster,P.E. Scot[J.Arganek,P.E. Douglas J.Benolt,P.E.
<br /> Anderlilc & GI nn RECook,P.EP E RobertOC.Ru sek,A IEA. Mark R.Rolfsn�Erson,P•E� Cec Ilo 011vier,P.E.n P E
<br /> Associ�tes Thomas E.Noyes,P.E. Jerry A.Bourdon,P.E. Mark A.Seip,P.E. Kent J.Wagner,P.E.
<br /> Robert G.Schunicht,P.E. Mark A.Hanson,P.E. Gary W.Morlen,P.E. Paul G.Heuer,P.E.
<br /> Sutan M.Eberlln,C.P.A.' Michael T.Rautmann,P.E. Paul J.Gannon,A.I.A. John P.Gorder,P.E.
<br /> 'Senlor Consu�tant Ted K.field,P.E. Daniel J.Edgerton,P.E. Dan D.Boyum,P.E.
<br /> Engineers & Architects Thomas R.Anderson,A.I.A. A.Rick Schmfd[,P.E. Jeffrey J.Ehleringer,P.E.
<br /> James R.Rosenmerkel,P.E. Dale A.Grove,P.E. Joseph R.Rhein,P.E.
<br /> Donald C.Burgardt,P.E. Philip J.Caswell,P.E. Lee M.Mann,P.E.
<br /> Thomas A.Syfko,P.E. Mark D.Wallis,P.E. Charles A.Erickson
<br /> Frederic J.Stenborg,P.E. Miles B.Jensen,P.E. Leo M.Pawelsky
<br /> September 21, 1995 Ismael Martine:,P.E. L.Phillip Gravel,P.E. Harlan M.O�son
<br /> Michael P.Rau,P.E. Karen L.Wiemeri,P.E. Agnes M.Ring
<br /> Thomas W.Pe[erson,P.E. Gary D.Kristofi[z,P.E. James F.Engelhard[
<br /> Mr. Lyle Oman,
<br /> Building Official
<br /> City of Orono
<br /> Post Office Box 66
<br /> Crystal Bay, Minnesota 55323
<br /> Re: 1669 North Farm Rd.
<br /> File No. 139-Gen
<br /> Dear Lyle,
<br /> We have reviewed the proposal to install a second culvert under Long Lake Road and excavate
<br /> the ditch along County Road 6 to provide an adequate outlet for the existing wetland on Lot
<br /> 8, Block 1, The Farm at Long Lake. The initial calculations done by Mr. Nels P. Nelson,
<br /> BARR Engineering Company and the recent letter by Stephen M. Johnston, Landform
<br /> Engineering Company appear acceptable from an engineering standpoint. The house walkout
<br /> elevation should be set no lower than elevation 988.5, as determined by Landform Engineering
<br /> Company. This will provide approximately one foot of freeboard above the calculated 100-year
<br /> flood clevation. The l�omeowner should be advised that one foot of freeboard may not be
<br /> adequate protection from flooding during a larger frequency storm event.
<br /> Silt fence should be installed at the downstream limits of the proposed grading prior to
<br /> commencing with the work. Long Lake Boulevard must be repaired to its original cross-section
<br /> or to a minimum of six inchcs of Class 5 aggregate base and 4.5 inches of bituminous mixture
<br /> ('I�pc 41)whichevcr is greater. Bituminous mixtures must be placed in lifts not exceeding three
<br /> inches in thickness. All backfill below the Class 5 aggregate must be granular borrow material
<br /> mecting MnDOT Specification No. 3149. Access along Long Lake Boulevard must be
<br /> maintained at all times, keeping one lane of traffic op�n. Traffic control must be installed and
<br /> maintained in accordance with the MMUTCD. The City should be notified for inspection at
<br /> least 48 hours prior to removing the surface of Long Lake Boulevard. We would recommend
<br /> a $10,000 letter of credit be provided to the City to insure that the work is done satisfactorily.
<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 /> ���� �.
<br /> Shawn D. Gustafson, P.E.
<br /> 2335 West Highway 3G ■ St. Paul, MN 55113 ■ G12-G3G-4G00
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