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(R) <br /> SCHI M NO W SKI f NG1 NEERS <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 /> R��+��"��D <br /> Asher Judd �P� � p 20�7 <br /> Outdoor tnnovations Landscaping <br /> 5885 16Sh Street C�N OF Q�Q�O <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" (DMSRV� published by NCMA in 2009. Direct ail 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 if you have any questions or <br /> need more information. Thank you. <br /> Sincerely, <br /> _ •,, ',.�4 '.=�� �gr�'i:• / <br /> ,`;: <br /> � �.9` ���;��r� �'�' � <br /> Paul Schimnowski, PE '` � ��'"�`�'�`�"�4-�l�= � <br /> " :ati'']4�t�.... — <br /> :;';.�'m ��$i;i'* .�.�+ <br /> �� <br /> :�. <br /> r. ,:: a <br /> trJ f:s,`<,� •� . <br /> LICENSED �'``��� . <br /> -,� <br /> PROFESSIONAL <br /> ENGINEERS <br /> HOME&BUILDING INSPECTIONS <br /> STRUCTURAL EVALUATIONS <br /> 4SSOCIATION RESERVE/TRANSITION STUDIES <br /> RESI DENTIAL/COMMERCIAL <br /> RETAINING WALL DESIGN&EVALUATIONS <br />