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<br /> Bonestroo,Rosene,Anderlik and Associates,lnc is an Aff��ma[ive Action/Equal Opportuniry Employe r
<br /> Bonestroo Pnncipals Otto G Bonestroo,PE•Joseph C Anderlik,PE • Marvin L Sorvala,PE •
<br /> Richard E Tumer,f'.E• Glenn R.Cook,P.E.• Thomas E Noyes,f'.E,• Robert G.Schunicht,P.E.•
<br /> RoseneJerry A Bourdon,PE• Rober[W Rosene,PE and Susan M Eberlin,CPA,Senior ConsWtants
<br /> � Associate Principals:Howard A Sanford.f'.E.• Keith A.Gordon.P.E� Robert R.Pfefferle.P.E.•
<br /> Anderlile & Richard W Foster,PE• David O Loskota,PE•Robert C Russek,A I A • Mark A Hanson,PE •
<br /> Michael L Rautmann,P.E.• Ted KField,f.E.• Kenneth P.Anderson,P.E• Mark R.Rolfs,f?E.•
<br /> Assoei�tes Sidney P Williamson,PE,LS • Robert E Kotsmi[h
<br /> Offices:St.Paul,Roches[er,Willmar�jnd SL Cloud,MN• Mequon,WI
<br /> Engineers & Architects
<br /> October 28, 1994 � ����
<br /> � 1 �a,,-,.rs,y,,,-
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<br /> Ms. Jeanne A. Mabusth
<br /> Building and Zoning Administrator
<br /> City of Orono '
<br /> Post Office Box 66
<br /> Crystal Bay, Minnesota 55323
<br /> Re: Wett Residence
<br /> File No. 139-gen `OCT 3 ,0 �996
<br /> Dear Jeanne,
<br /> We met last Friday with John Miller of WALDENWOOD who is the contractor planning to construct a series
<br /> of retaining walls at 1354 Rest Point Circle on the property owned by Richard and Marjorie Wett. The
<br /> property is located along the north shore of West Arm which has a significant bluff. The bluff rises over 30
<br /> feet in less than 50 feet from the shoreline. The bluff has seriously eroded in recent years and the timber
<br /> stairway shows signs of deterioration. The owners would like to retain the steep slopes and replace the
<br /> stairway access to their dock. Mr.Miller plans to use some type of modular masonry block retaining wall with
<br /> soil anchor restraints. 'This technique is acceptable in concept, however, due to the height of the walls a
<br /> registered engineer should perform the actual wall design. Information which is critical for this type of project
<br /> includes:
<br /> -type of modular masonry block proposed
<br /> - method of providing drainage for walls
<br /> -type of soil anchor or other tie-back restraint for wall
<br /> -geotechnical evaluation and/or type of fill proposed
<br /> - cross section of p!-oposed wall a.nd side slopes
<br /> - loading condition used for wall design
<br /> ..r�3:.,..�?G:: �;,i;,tiJ:;;Crf G: iiic e�iisiii7g ir�cS �"vi;i D� �aveti
<br /> -description of the construction technique proposec(i`ar working around the maturP trees and root
<br /> systems in the area
<br /> The owners would like some preliminary direction from the City as to what type of improvements might be
<br /> allowed on their property. The Department of Natural Resources will iikely be involved because of the bluff.
<br /> It may be a good idea to meet at the site with !he DNR, contractor, owners and ourselves to determine the
<br /> applicable procedures and approvals for the con��ruction. Please contacl me at this oftice if you have any
<br /> questions regarding this matter.
<br /> Yours very truly,
<br /> BONESTROO, ROSENE, ANDEPLIK &AS�OCIATES, INL.
<br /> i7C���na'`'"r' �' � .
<br /> Shawn D. Gustafson, P.E.
<br /> 2335 West Highway 3G ■ St. f'aul, MN 55113-3898 ■ G12-G3G-4G00
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