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.�ii t3�!t'�;'' cr,"°�t;;.�,�� <br /> � <br /> . � ���� �� <br /> NOTCH <br /> � � ENGINEERING <br /> CO1250 Morningview Drive <br /> ■ Mound Minnesota55364 <br /> (612)472-5566 <br /> September 2 , 1992 <br /> Mr. Peter L 'Allier <br /> 2684 Lydiard Avenue <br /> Excelsior, Minnesota 55331 <br /> Re : Residence at 2684 Lydiard Avenue <br /> Orono, Minnesota <br /> Mr. L'Allier, <br /> Notch Engineering Co. was requested by you to review the above <br /> referenced residence in order to determine if it would be <br /> capable of supporting a new second floor addition over the <br /> existing residence. <br /> On August 20 , 1992 , I visited the residence to make a field <br /> observation of the existing foundation walls and to review the <br /> original construction documents . The existing exterior masonry <br /> walls were constructed on ei�hteen inch wide footings . The <br /> soil bearing pressure under these footings would not exceed <br /> 2 , 000 PSF witti the additional floor loads , even if a clear span <br /> truss system is used for the floor. <br /> In conclusion, the foundation of the existing residence will be <br /> capable of supporting the new second floor load. <br /> While at the site, I also observed the foundation of your <br /> existing garage in order to determine if it too could support a <br /> second floor addition. The garage was on a floating slab and <br /> did not have frost footings under the exterior walls . In order <br /> to accomidate an floor addition on this structure , the <br /> foundation would have to be underpinned down to an elevation <br /> three feet six inches below the exterior grade . <br /> If you have any questions or comments on this review please <br /> feel free to contact me. <br /> Sincerely yours , <br /> C�GYJl�c� � Gi��7G�%J <br /> Thomas E. Notch, P.E. <br /> Structural Engineer <br /> cc : file <br /> STRUCTURAL DESIGN SERVICES <br />