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SCHIMNOWSKI <br />CRITERIUM8 <br />ENGINEERS <br />November 22, 2022 <br />Josh Prust <br />Valdes Lawn Care & Snow Removal <br />Submitted by email: jpeterson@valdeslawn.com <br />RE: Supplemental Report - Timber Retaining Wall Upper Tier <br />Project Location: 2815 Casco Point Road, Orono, Minnesota <br />Project No. 22-6589 <br />Dear Mr. Prust: <br />This letter is being sent in response to the email we received from Melanie Curtis from the City of Orono. <br />Based on her review of my previous letter to you dated November 18, 2022, she is requesting additional <br />information. <br />It is my professional opinion that the work I recommended should qualify in regards to City Code Section <br />78-1726 (6): Emergency repair exception. <br />The slopes at the top of the timber retaining walls constructed to -date are much steeper than originally <br />designed. The construction of the final, planned retaining wall at the top of the tiered retaining wall system <br />is required to stabilize these slopes. Failure to stabilize and reduce the steepness of these slopes with the <br />construction of the planned wall will likely result in a slope failure, significant erosion, and damage to the <br />retaining walls already constructed. <br />Refer to my original design dated August 24, 2022, and my previous letter dated November 18, 2022, for <br />further information. <br />Please call me if you have any questions or need more information. Thank you. <br />Sincerely, <br />Paul Schimnowski, P.E. <br />MN #40126 <br />I hereby certify that this plan, specification, or report was prepared <br />by me or under my direct supervision and that I am a duly Licensed <br />Professional Engineer under the laws of the State of Minnesota. <br />Paul Schimnowski, P.E. <br />Date: November 22, 2022 License #: 40126 (MN) <br />Independently Owned and Operated <br />161 Dunbar Way / Mahtomedi, MN 55115 <br />O: 651.779.7700 / criterium-schimnowski.com <br />