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I NELSON GEOTECHNICAL <br /> ( IyC�A ASSOCIATES� INC. <br /> GEOTECHNICAL ENGINEERS & GEOLOGISTS <br /> Main Office E�g�neenng-Geology Dranch <br /> ( 173U — 185'"Avenue NE,A-500 437 East Penny Foad <br /> I \hbodirrvtllc+,WA9R07' WenatrheP,WA 99801 <br /> (»25)486-1669• FAX(425)4E1-2570 (503)665-7696•FAK(503)665-7692 <br /> (A25)337-1669 Snohomish County <br /> I <br /> 1=cbniary I. 2007 <br /> I <br /> I Mr. Hadi Aghaghafar <br /> d703 Glcnhavcn Drivc <br /> Evcrelt, Washington 98203 <br /> Preliminary Gcotechnical Lettcr <br /> Landslidc F.vah�ation and Rcpair <br /> 4703 Glenhavcn Drivc <br /> I Gvcrclt,Washington <br /> NGA Filc No. 75$7p6 <br /> ( Dcar Mr. Aghaghafar: <br /> � <br /> This Iclter presents preliminary findings and reconnnendations from our gco�echnical invesligalion and <br /> � evaluation of Ihe recau landslidc occun�ence within your property located at 4703 Glenha��en Drive in <br /> Gverett. Washington as shown on the viciniry plan in 1=igure 1. We previously prepared a memorandum <br /> Iwith rcconuncndations for tcmporary stahilization of thc landslidc dated 7anu,�ry 3. 2007. <br /> I INTRODUCTION <br /> � 'i'hc residcnce and dri��c�vay arc located on a north-trending ridgc with a stccp c:�st-facin� slopc <br /> I descendino to a ravine cast of the residence and .� west facing slope descendin� from thc level building <br /> pad area Jescending to Glenhaven Dri��a A landslide occu�rcd on the moderate to steep ���est-facin� <br /> � slope below the western side of the residence :md along the concrcte portion of the existin, drive•,vay <br /> above Glcnhaven Driae. �'Ve undcrstnnd that landscaping work was done on the upper portion of thc <br /> � slopc adjaccnt to thc residencc in 200G. The approximatc loc:uion of the slide is shown on thc Sitc Plan <br /> ��, r�s���� z. <br /> �Vc recenUy visitcd thc sitc to obscrvc cxistin�� conditions. :md havc had discussions with you and your <br /> contractor Nayne Yardlcy with Casr.�de Rock and Conswction, Inc. �1'e ha��e discussed the use of a <br /> cantilevercd soldicr pile wall to stabilize thc landslide materials in-place on the slopa You have <br /> infornmd us that you do not want to constnict a soldier pile wall to st.sbilize the landslide materials on the <br /> Z. <br />