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�3.,", <br /> -�Y �' ,?i�►�rs;%s Bmun IMsd�c Corporation Phone: 952.995.2000 <br /> '` 1 1001 Hampshire Avenue S Fax: 952.995.2020 <br /> :-:� INTE�iE� Minneapolis,MN 55438 Web: brauninterteacom <br /> `�'�j <br /> ^,. <br /> �_ ,� October 11,2004 Project BL-04-06716 . <br /> � ' Mr.Roger Peterson <br /> Aulik Associates <br /> 6401 Wayzata Boulevard <br /> St. Louis Park, MN 55426 <br /> �„� Dear Mr.Peterson: <br /> r, Re: Geotechnical Evaluation, Proposed Detached Carriage Home, 2625 North Shore Drive, Orono, <br /> Minnesota. <br /> � We have completed the geotechnical evaluation for the proposed detached carriage home to be located on <br /> �� '_ a parcel of property known as 2625 North Shore Drive in Orono,Minnesota. The purpose of the <br /> " geotechnical evaluation was to provide geotechnical information and recommendations regarding the <br /> design and construction of the proposed carriage home. Our evaluation was completed in general <br /> accordance with our proposal to you dated September 28,2004. In this letter,we present a summary of <br /> our results and recommendations. Additional deta.ils regarding our results,recommendations and <br /> methods are provided in the atta.ched report. <br /> : � . <br /> � ' Summary of Results <br /> _ We completed three soil borings as part of our evaluation. T'he soil profile generally consists of <br /> � approximately 2 1/2 to 4 feet of previously-placed fill underlain by 1 to 1 1/2 feet of swamp deposited <br /> soils overlying native granular soils extending to boring termination depths of approaiimately 20 feet <br /> - below the existing grade. The exceptions being Borings ST-3 where swasnp deposited soils were not <br /> encountered and Boring ST-2 where a layer of sandy lean clay was encountered within the native <br /> ,„ granular soils at approximately 11 1/2 to 13 feet below e�usting grade. <br /> ��. <br /> .:-.� <br /> Groundwater was observed in all the borings. The groundwater was encountered at approximately 4 feet <br /> below existing grade during drilling and at depths ranging from 3 to 3 1/2 feet below existing grade after <br /> removal of the augers. These depths correlate to appro�cimate ground elevations ranging from 927 to <br /> 927 1/2 based upon the provided benchmark elevation. <br /> � Summary of Recommendations <br /> Relatively high groundwater was encountered in the borings. In order to place concrete in a dry footing <br /> '-,: <br /> trench,we recommend considering raising grade. <br /> � We recommend that all vegetation,topsoil,previously-placed fill and swamp deposits be removed from <br /> -` ' the proposed carriage home pad. Based on the borings, it is our opinion approximately 25 percent of the <br /> ' previously-placed fill can be reused as engineered fill on the site, exclusive of within 3 feet of the <br /> �-,._ groundwater table. After carriage home pad preparation, it is our opinion the native sand soils and <br /> engineered fill are suita.ble for support of the proposed carriage home. <br /> , - <br /> — � • ---- �-- -•-----• Providing engineering and en�ironmental sotutions since 1957 <br /> �,. <br />