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� <br /> C � N N fRS <br /> CRITERIUM-SCHIMNOWSKI ENGINEERS <br /> 161 DUNBAR WAY <br /> MAHTOMEDI,MN 55115 <br /> TEL 651779-7700 <br /> FAX 651779-7114 <br /> www.criterium-schimnowski.com <br /> August 17, 2016 <br /> Asher Judd <br /> Outdoor Innovations Landscaping <br /> 5885 165�'Street <br /> Hugo, MN 55038 <br /> RE: Boulder Retaining Wall Evaluation <br /> 805 Forest Arms Lane <br /> Orono, Minnesota <br /> Project#16-2367 <br /> Dear Mr. Judd: <br /> This letter is being sent per your request regarding the recently constructed boulder retaining walls at the <br /> above address. This evaluation is based on my observations during a site visit on August 4, 2016, and <br /> information you provided in an email on August 3, 2016, including as-built survey information and a <br /> sketch of a swimming pool post footing detail indicating that the pool footing loads are being supported <br /> below the influence of the retaining walls. <br /> The construction of the retaining walls is structurally stable and in general conformance with boulder <br /> retaining wall and construction industry standards.The walls were constructed with stone of sufficient size <br /> and setback. Other typical construction details such as use of drainage elements also appeared to be <br /> followed correctly.As is normal for boulder retaining walls of this type, some wall movement and soil <br /> settlement should be expected. I recommend that concentrated areas of surface water should be directed <br /> away from the walls. Several photos were taken for documentation, some of which have been provided <br /> as part of this report. <br /> This evaluation was performed using the design guidelines presented in the third edition of the"Design <br /> Manual for Segmental Retaining Walls"(DMSRVI� published by NCMA in 2009. Direct all surface <br /> drainage away from the retaining walls. If soil conditions, proposed layouts, or other design parameters <br /> vary from that assumed, a revised analysis might be needed. Please call me rf you have any questions or <br /> need more information. Thank you. <br /> Sincerely, <br /> r <br /> 1`�L����p�iSCl�1�f��t <br /> �,�a, � s , <br /> �; <br /> ,. �� • !s <br /> I _ ` , .. <br /> „ SE , '. :: <br /> ,,,.�....� <br /> Paul Schimnowski, PE ' � ���E€��- ; *,= <br /> ; �• 40120 *�*` <br /> . � <br /> �oa,�`•��. �,:��.,�e <br /> �i � •�-��••�•�,4 �e <br /> LICENSED J''����a!!N!�11��4�r`a <br /> PROFESSIONAL <br /> ENGINEERS <br /> HOME 8 BUILDING INSPECTIONS <br /> STRUCTURAL EVALUATIONS <br /> ASSOCIATION RESERVFJTRANSITION STUDIES <br /> RES I DENTIAUCOM MERCIAL <br /> RETAINING WALL DESIGN 8�EVALUATIONS <br />