09-17-2001 Planning Packet - Laserfiche WebLink

Home Browse Search

% 1/1 Bonestroo Rosene Anderlik & ^ ^ Associates Engineers & Architects ■oneitroo. Rot^n#. Andertik and AliociJiles. fnc. it 4n Afrirm«itive Actioa/Cqu4l Opportunity employer «nd Employee Opened e 1 PrincipAlt. Olio G Bonest'oo l*t • M.«rvm i Sorv.ii.t Pt • G'rnn R Cook PE • Robert G Stnunuhi PE jerry A Bourdon Pf Senior Consult^nit: Robert MU Rovene PE • Jo\e|>h C Anderlik PE • RfCti.ud E furner PE • Sui.in M tberiin C PA PtAttocleie Princlp4lt ketin A Gordon PE • Robert R PfeMerie Pf • Piin.*rd W to\ter PE • D.»vid O los«ol.« M.irk A M.»n\on Pt • Vith.iel T R.tutrr.tnn PE • fed K Field PE • Kenneth P Anderson PE • V*.e* ’f Roit\ ‘»F • D.tvid A Bone;troo MBA • Sidf'ry P Wilfi.irtnon. PE IS* Aijnev Vt 'f nq MBK • Ail.ir^Ru* St*'rr(dt P£ • Ihore.n X Peter ion Pt • i.«r»rs R V.iltind PE • Miles B jernen Pt • Pn.ti-p Gr tvef ill nt • 0.*nrel i Fdkjr'tce Pf • hm.iri M.ift re/ Pf • Thom.u A Sytfco Pt • SlietJan J Jfir>n\on • O «ie A G^o^e Pt • Tncrn.is A Poutr.ir P£ • Robert J Devery P£ September 7. 2001 Offices. St P.iul St Cloutl. Rochc'.ler ,iruJ Wilim.ir MN • Mil.v.uni/e Wt • Cha ujo i» U^bsite: ^ A ^ tioi'esiroo r om Wendy Bollenberg Assistant Zoning Administrator City of Orono Post Office Box 66 Crystal Bay. MN 55323 ■ ; ^ » w Re: Spooner Retaining Wall File No. 139-01-000 Plat No. 01-2717 Dear Wendy: We visited the site at 700 Tonkawa Road yesterday to review the retaining wall improvements. The improvements included removal and replacement of a series of existing timber retaining walls. The replacement walls are constructed of boulders and range in height from I to 3 feet. The retaining wall improvements are entirely within the 0 ’-75’ lakeshore setback. The properly owner provided the City with a survey showing the location of the former and new walls. No elevations were provided with the survey so we were unable to determine if the new walls were any taller than the timber walls. The survey showed structures that didn’t exist (neighbors boathouse, shed) so it made it difficult to field verify the location of the south property line. Based on the information provided it appears that the timber walls did not extend south as far as the survey shows. This is apparent because of the lack of disturbance to the existing vegetation along the south 30 to 40 feet of the property. Based on our inspection it appears that the boulder walls were placed at the approximate elevations as the timber walls they replaced. The one exception might be the landing area near the top of the improvements south of the steps. It appears this area may have been re-graded and enlarged. These grade changes are relatively minor and the revised grades appear to match in well to the neighboring properties. The area where the walls exist is steep and the walls will provide some slope stability The walls are visible from the lake and wc recommend that some sort of vegetative screening plan be implemented. Some landscaping had begun on September 6. We recommend that the property owner provide the City with a vegetation plan that includes plants capable of screening the wall from the lakeside. The plans should provide screening for all wall tiers including the bottom tier closest to the lake. Please contact me at (651) 604-48C3 if you have any questions regarding this matter. Yours very truly. BONESTROO. ROSENE. ANDERLIK & ASSOCIATES. INC. Tom Kellogg Cc: Greg Gappa. of Orono 2335 West Highway 36 • St. Paul. MN 55113 • 65t-636-4600 • Fax: 6SI-636-I3II