Laserfiche WebLink
1/1 Bonestroo <br />Rosene <br />Anderlik & <br />^1 Associates <br />Engineers & Architects <br />January 5, 1995 <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: Edmunds Residence <br />File No. 139-2100 <br />Dear Jeanne, <br />SonMtroo. And*rt» and AuociMct. Ir*t li an Afnnna«va ActUx^qual Opportunity Empleyar <br />Otto G. Bonestroo. F E. <br />Robert W. Roiene. P E.* <br />Joseph C. Anderim, PX <br />Marvin L Sorvaia. PX <br />Richard E. Turner. P.E <br />Glenn R. Cook. P E. <br />Thomas E. Noyes. P E. <br />Robert G. Schunicht P.E. <br />Susan M. Eberiin. C.P.A.* <br />• Senior Consultant <br />Howard A. Sanford. P E. <br />Keith A. Gordon.. P.E, <br />Robert R. Pfefferle. PE. <br />Richard W Foster. PE. <br />David O. Loskota. PX <br />Robert C. Russek. A.1«A. <br />Jerry A. Bourdon. PX <br />Mark A. Hanson. P E. <br />Michael T. Rautmarwi. PX <br />Ted X Field. P J. <br />Thomas R. Anderson, A.I.A. <br />James R. Roienmerkel. P E. <br />Oorsald C Burgardt. P E. <br />Thomas A. Syfko. P E. <br />Frederic J. Stenborg. P E. <br />Ismael Marilnei. PX <br />.Michael P Rau. P E- <br />Thomas W. Peterson. PX <br />Michael C LyrKh. PX Brian X Gage. PX <br />James R. Maland. P.E. F. Todd Foster. PX <br />Jerry D. Pertiich. P E. Keith R. Yapp. P.E. <br />Scott J. Ar-janek. PE Douglas J. 8er>oit PE <br />Kenneth P Anderson. PE. Shawn D. Gustafson. PX <br />Mark R. Rolfs. PE. Cecilio OHvier. P E. <br />Mark A- Seip. PX Kent J. Wagner. P E. <br />Gary W. Morien. P E. Paul Gl Heuer. PX <br />Paul J. Gannon. A.I.A, <br />Daniel J. Edgerton. P.E <br />A. Rick Schmidt. PX <br />Dale A. Grove. P E. <br />Philip J. Caswell. PX <br />Mark 0 Wallis. PX <br />Miles X Jensen. P E. <br />L Phillip Gravel. P E. <br />Karen L Wiemen. P E. <br />John P. Gorder. P E. <br />Dan O. Boyum. PX <br />Jeffrey J. Ehieringer. PX <br />Joseph R. Rheirt. PX <br />Lee M. Mann. PX <br />Charles A. Erickson <br />Leo M. Pawelsky <br />Harlan M. Olson <br />Agnes M. Rlr>g <br />/O^i XA a/-N <br />We have reviewed the site plan for the proposed residential construction on the property owned by <br />Robert and Debra Edmunds at ua37Ay BvW-i».(^cle. The construction includes placing fill and <br />installing retaining walls to create the walkout house pad. The grading plan appears acceptable from <br />an engineering standpoint. The grades do not exceed 3 to 1 (horizontal to vertical) and the drainage <br />is controlled on the property. Inspection and testing should be done during the filling operations <br />to verify that the soils and compaction arc adequate for structural support. <br />More information is needed on the two retaining walls. Tlie north and south walls are shown up <br />to 4.5 feet and 6 feet in height, respectively. We would recommend a modular masonry block wall <br />be used and a structural design be done for any wall over 4 feet in height. There are many <br />manufacturers which provide an engineered wall system for almost any application. The wall should <br />have a draintilc line installed to function properly in clay soils. \Vc do not recommend gravity type <br />retaining walls, such as boulder walls, due to the difficulty in determining their effectiveness or <br />durability'. The applicant should provide the following information: <br />cross-sectional detail of wall with specifications <br />method of providing drainage for walls <br />method of tic-back restraint for wall <br />geotechnical evaluation of e,\isting soils <br />Silt fence should be shown on the plan along the eastern grading limits for erosion control. <br />Please contact me at this olfice it you have any questions regarding this matter. <br />Yours very truly, <br />BONESTROO, ROSENE. ANDERLIK & ASSOCIATES. INC. <br />ShawTi D. Gustafson, P.E.