5710 1ST DR W 2016-01-01 MF Import

Geo�Engineer� ^ ApCil 19� 1993 Gcu�cchni;al. feocnrirunmrntal and Genln};ic Scrcicc. Seled Homes 237 Elm Sueet Everett, Wachington 98203 Aaendon: Mr. Randy Clrrk • Building Se,back Conditions Haaabrook Devdopment Divisions III and N Evadt, Wuhington File No. 2670-0OS-R06 ' 'Ihe putpose of this letta is to ouUine reduced building setback cooditioas for location of homes rt th� os of slopes on Divisioas III snd N of the Hanabrook Development in Everett, Was6ioyton. 'Ibis hu boen discussed with Mr, Randy Clazk of Selecx Homes, Mr. Pat McCourt of Univasal Brokaage Corporuion, rmd Mr, Micbael Crowson of WdcH Pacific. {�'e ha�'e obsaved m sigoa of instability on native alopes in Divisions III end IV. Fill slopes on Divisions III�nd N were constivcted with st:ucturol fill consisting of on-site granular soils under fiill-time monitoring o!'a qualified individual from our firm. 7Le structural fill is keyad into existing fi�m oatrve suils and fill placed to achieve the final slope grades has been propaly benchod inco ea�isting native materials and compacted to 95 percent of MDD (maximum dry density)accordiny w the specificadons of the ASTM D-1557 test procedure. In addition,the lots ue gradad W slope awsy from the tops of slopes and all slopes ha��e been covered with jute maning and 6ydroseoded for erosion protection. In our opinion, whae slopes have been placed, compacted, graded, and vegetated as i described above, the minimum buiiding saback distance can be reduced to 10 feet. The setback . distance is the horizontal distance measured from the front face of the footing to the face of the slope. It should be understood that if the setback distance is reduced to 10 feet, the risks of losing access, reducing the design life of the foundations and having slope movement impact the house foundations are increaced. �,.i r. „� ,�� .. _ :.I\�_I Y'i\�.'� .. Fr, . 'h�. .. .