The URL can be used to link to this page

Home My WebLink AboutEngr Report Boulder Retaining Walls t� � �� SCH ► MNOW K1 EN S GI NEERS CRITERIUM-SCHIMNOWSKI ENGINEERS 161 DUNBAR WAY MAHTOMEDI,MN 55115 TEL 651779-7700 FAX 651779-7114 www.criterium-sch imnowski.com August 17, 2016 RECEfVEp Asher Judd A�� '( 9 2��6 Outdoor Innovations Landscaping 5885165th Street CITY �F QRONO Hugo, MN 55038 RE: Boulder Retaining Wall Evaluation 805 Forest Arms Lane Orono, Minnesota Project#16-2367 Dear Mr. Judd: This letter is being sent per your request regarding the recently constructed boulder retaining walls at the above address. This evaluation is based on my observations during a site visit on August 4, 2016, and information you provided in an email on August 3, 2016, including as-built survey information and a sketch of a swimming pool post footing detail indicating that the pool footing loads are being supported below the influence of the retaining walls. The construction of the retaining walls is structurally stable and in general conformance with boulder retaining wall and construction industry standards. The walls were constructed with stone of sufficient size and setback. Other typical construction details such as use of drainage elements also appeared to be followed correctly. As is normal for boulder retaining walls of this type, some wall movement and soil settlement should be expected. I recommend that concentrated areas of surface water should be directed away from the walls. Several photos were taken for documentation, some of which have been provided as part of this report. This evaluation was performed using the design guidelines presented in the third edition of the"Design Manual for Segmental Retaining Walls" (DMSRV1n published by NCMA in 2009. Direct all surface drainage away from the retaining walls. If soil conditions, proposed layouts, or other design parameters vary from that assumed, a revised analysis might be needed. Please call me if you have any questions or need more information. Thank you. Sincerely, ��;tl1f��;� , �j�%' /�- `�,;`,.��.��,��t¢d,. + ` ,\ j'.' � .. ,�� ,� !� �. .. ;- ". .._. _ ' .— ��/ •4'i .-"-`_�;` ',✓ _ ;dSE . Paul Schimnowski, PE ' �F,��N��'�- � �,-_= �: � �8 t�t? �:�. "' �A� '� y� �J'�-;�'I°�� .»�oy,�.+`�'�(1��?a ,P0'!C '�` �5.n"li4'1%� w:�''1, LICENSED '•�;1 f��b 3�'y',t ' PROFESSIONAL ENGINEERS HOME&BUILDING INSPECTIONS STRUCTURAL EVALUATIONS 4SSOCIATION RESERVE/TRANSITION STUDIES RESIDENTIAUCOMMERCIAL RETAINING WALL DESIGN&EVALUATIONS 805 Forest Arms Lane, Orono, Minnesota August 17, 2016 Page 2 of 2 TERMS AND CONDITIONS This WALL EVALUATION and ensuing recommendations is expressly made subject to the following terms and conditions to which all persons that receive and rely thereon agree: 1. Standard of Service—Services performed by EiVGINEER under this agreement shall be performed in a manner consistent with the skill and care ordinarily used by members of the engineering profession practicing under similar conditions at the time and in the locality the services are performed. • Client recognizes that interpretations and recommendations of ENGINEER are based solely on the information available to the company. • ENGINEER will be responsible for those interpretations and recommendations, but shall not be responsible for the interpretation by others of the information developed • Services provided reflect the professional judgment of ENGINEER,to the best of ENGINEER's knowledge, information, and belief as of the date hereof. • No other warranty or guarantee,express or implied, is made. 2. Said design is based entirely on and expressly limited by the scope of services ENGINEER has been employed by Client to perform and as described in WALL PROVISIONS and LIMITATIONS. 3. If the ENGINEER is hired for any construction phase services or site visits, it is understood that the Contractor, not the ENGINEER, is responsible for the construction of the project,and that ENGINEER is not responsible for the acts or omissions of any contractor, subcontractor or material supplier;for safety precautions, programs or enforcement; or for construction means, methods,techniques,sequences and procedures employed by the Contractor. 4. OWNERSHIP OF DOCUMENTS:All reports,field data,field notes,calculations, estimates and other documents ('reports')prepared by Engineer, as instruments of service, shall remain the property of Engineer. Client agrees that all reports furnished to Client or his agents,which are not paid for,will be returned upon demand and will not be used by Client for any purpose whatever. Engineer will retain all pertinent records relating to the services performed for a period of five years following submission of the report, during which period the records will be made available to Client at all reasonable times. 5.TERMINATION:This agreement may be terminated by either party by written notice. In the event of termination, ENGINEER shall be paid for services performed and expenses incurred up to the termination notice date. Neither Client not ENGINEER may delegate, assign, sublet or transfer his/her duties or interest in this Agreement without the written consent of the other party. 6. To the fullest extent permitted by law, Client and ENGINEER(1)waive against each other, and the other's employees,officers, directors, agents, insurers, partners, and consultants,any and all claims for or entitlement to special, incidental, indirect,or consequential damages arising out of, resulting from, or in any way related to this wall design and written report, (2)agree that ENGINEER's total liability to Client shall be limited to the total amount of compensation received by ENGINEER and(3) if an action is brought against the ENGINEER and the ENGINEER prevails, ENGINEER shall be entitled to recover costs and expenses, including reasonable attorneys'fees and costs. i a,rt.:, � �ti; CRITERIUM-SCHIMNOWSKI ENGINEERS f '"'` TEL 651 779-7700 ;� Location Photos Taken by: Inspection Date: ( "^+^�� Paul D Schimnowski, Au ust 4,2016 �� 805 Forest Arms Lane, S - ,�,,:,�� Orono,MN ENGINEERS _ �_..��......_ ._. � ___, _.._.. _ _ : � {. �h�_., Y� � ��_ � `�ti � �,�� '�' ��" `�aYE i� h� '► �,.y. � .!, a�� :,.,, , .,p � , `- ;: �# �� . � 7' "��i' `-� � ,:.�.�„ -;.� �...,.. _ .. . _ "� '�t,�33,., . �z�' t,. tx"g^f'.�. � .,r,, �i �a�i,',.; _ .� ...,...+�... `;^u i 1 ,Front view of house. 2 Rear view of house with boulder retaining walls. . ._�._ ��, i� , ,�-��t:� ''Gr '_ x �:?� . � �� ,�e , � �` �� .. =�� 4 ,'i^ �`.F�W' i .. 1i �� F €*�.4 .f.� 'F I ,I` v. y�Y _�'a a i� _ ' �^ ;'- , t�' �i It,... . :✓ .. ti� _ .rn , � �.4f' ��•�� . � ~:�. �':� .. .. . ��+ -� r ,, y�:� �� x'r �.�.. -,�;. ,,�; ,�. x ` � � - i . �,^.�.,. k 4, ' . � M F �� 5�1"'y�, ��L�..l�« '� G .� 1 r*� �u��b' �� {� r � h' '� xP'�=. . �^ts7 b '�4� � y, f . .... . . .. _ . _ .. .,. . . . . n�� n3��y.�Y.d��Y.. �..�. ..�Fl. ��' .r�.�.�: ' , ,. .... �',: 3 �Up�er wall is strucwrally adequate. � 4 Upper wall is structurally stable :,.��.r, ��,��,,,,��,, _� � � �-�,�,'� _ ��' 4 -� '�."�`.` , £� W.;_ , �_ >. . • k� �� a ' �� ,� : .-..-: �'' a�a�.. ` ��•.,,�� ' ,� � � � -�� n . � 1 . .. . j.h. . �� f ��. . . .. .. .. I -/ ..:i$ - '� . µ�.,{� t��e� £ ��?3. . r ' �. ''"�� . �S� ��&'F'�*� . � . p. '�,ti "�} •�,. � r� .ti�4 g��,q. X . :. �ry0'v.Y }�.,. ' ,.. �. , . , . � . ^ .� ..._,..`�� ' . . . i . . .�. ��r. ,7_...� ... ,:.... . ;... ., .. .. .. 5 Direct surface water and runofti away from 6 Direct surt�ace water and runoff away from wall Iwall. � to revent backfill movement. ,:� __ .-. , - , Location Photos Taken by: Inspection Date: �, FY^�� ( � �f'� 805 Forest Arms Lczne, Paui D Schimnowski, August 4,2016 � � �....�� o`°'Z°,"`" fNGINEERS .. . _ = � � �� _ h� ,�, � �� :" f,�'�; <�� {� '��* .� _••_ ;ro:�`;, �'$�'' a, � �' � ,. ,.,3 T At`1 ;i.� F. " .` ' �r`s � { � M :t �� r. .�� "`��.; ... �� '""e "�'�" �� ., "`' ,� �►'-�'' � r ;`�` � ' __ -��y�,�;., ' ,. �d: � � � r� .r , �q s.,h"�d'``+.,;� `,� .�� x `� , '� . ,i Y, '6;:, '`,.T" � ' . d , � �` � ,k � ts: S. ,. ., . ;,� .s.. �,.P P' '� �y � � .9A r�. " �' -�-�`: ' �, +�a+t3.: . . . ..�� .' .y � � . 7 ,Measurement photo of upper wa1L , 8 Direct surface water and runoff away from wall to revent backfill movement. _ �.--.�,.�, ..�,,, . ;-:� �� ,� ��.., -��¢" I'I "p�,. + �„a '�� .. �� - � � . .,, � I� . �� _; �� i ��:� �� , , ;�%r� �A ,� .�. k�,�� .� ��°�y ,�.� � . ' � . �!.- t � �µ�`` r��'"��. - � � ��. `� y: a .y,�,.s��`. � _ ��..: 'Sy„�x"' �'� i' 4 �= "� * .. � ,..� w�5' � �. .4 4 . � (. '� � k '�� U.. j� h,r_. i& .. V w , 'rv_ ' _ '. - �4� '.atGf. .�+ '�;.�. ' .ra'�4„��'.E-.:., jl� .�, .. ' . . _..-,. .�� .. T'a��r.�.�'�:� � . 9 View of tiered wall area. 10 Direct surface water and runoff away from wall to revent backfill movement. II I�I �"��,�',s . �:w: �va''�x�`�I:= ^�fhi"�> , rt. �: � .,; y p i � � �: �j �� . . £ ..�#� jf,'�Ys � � �F .� .Fy I �' y�� `T ,� . . ��,� �� ,��a �M I � `s 4 ��' �_, t. �, . i ... .;'�.� . � , � . . k� �. � . .. . r, .�.. � � �_ � ' ..z"� T r ��_. - i ' � �' �' ' x, _. „ . . � - c > � I . . . . .. ,�.,. i . . . , I '� �z... . �, � w-�.w� ._. '�""'. ,. , _� , .. , . ,a � �� : .,: I.'P ::� ._:. .-�. .,<�;,. :,°.., "", i-.. ��'' '� i �� . . . _ . ... �_... . .. ,. .. ... . . , - . . . .. . ... ' . . . . 11 Expect some patio paver displacement due to 12 Expect some patio paver displacement due to seasonal movement of boulder wa1L normal settlement of boulder wall.