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• ' A�. �ciated Earth Sciences, _ �c. <br /> � 0 � � � <br /> �rr,Y,r�,yz���,�,�������,ti�,�� <br /> s��«�»n�� zs, zoos <br /> Projcct No. GG080542A <br /> Mr. Kcn Zablc <br /> ]423 Virginia Avenuc <br /> 6vcrctt, Washington 9820] >L; � L" � <br /> 1 � � - � � ' <br /> Subject: Gcological Iiazard Asscssmcni <br /> Porch Addition <br /> 4711 W. Glenha��en Dri��e <br /> Lverelt, WasLington <br /> Dear Mr. 7_able: <br /> 7'his lettcr presents the results of our slope hazard assessment for the subject site. Our <br /> �vork has becn completed in general accordance �vith our scope of �vork letter, dated <br /> Augusl 19, 2008. This letter has been prepared for the cxclusive use of Ken 7_able and his <br /> agents, ('or specific application to this project. Within the limitations of scopc, schedule, and <br /> budget, our services have been performed in accordance with generally accepted geotechnical <br /> engincering und engineering gcologY practices in effect in this area at the time our report was <br /> prepared. No other warranry, cxpress or implied, is made. It must be undcrstood tl�at no <br /> rccommendations or enginecring design can yield a guarantee of stable slopes. Our <br /> observations, findings, and opinions are a mcans ro identify and reducc the inherenl risks to thc <br /> o�vner. <br /> PROJLCT AND SITE DL'SCRIPTION <br /> The subject site consists of an existing two-stor�' homr on a rectangular-shaped lot located a� <br /> 4711 West Glenhaven Drive in Bverett, Washington (Pigure 1). It is our widerstanding that <br /> lhc owner is interested in constructing a new porch extending off of die east side of the existing <br /> residence. 1'he porch will utilize post-type foundations that will cxtend several feet bclow <br /> eaisting sitc grades. <br /> 1'hc property slopes down to tlic east, �vith minor grading performed just east of tlte housc. Just <br /> east of the proposed ncw deck, �ve observed a small, approximately 6-inch-high slwnp, likely <br /> indicative of setdement of previously placed fill soils in that area. 'I'he slopcs are generally mild <br /> adjacent to the house, but were observcd to esceed approximately 40 percent atong tlie eastern <br /> properiy boundary. The castern Property boundary runs east toward a ravine loca�ed of( <br /> properry. No topograpliic survey was available at the time of our s[udy, but we estimatc that <br /> elevation differentials from the western to eastern properry boundarics arc on the order of aUout <br /> 25 feet. Glevation differcntials in the ��icinity of tlie proposed porch are less than a fcw feet, but <br /> dic slopes are signiflcantly steeper extending into U�e ra��inc. <br /> I�id.Lmdl)II'uc•911Piltlt:\�cnuc.\ui�rlUO•I�iil:l,md.\\;\ 9tillii•I'�l�?iIS2-'-01 •P�(�2i1ti2--ii?i �/ y� <br /> I-�nru(llli�r•_'911I/_'lli�cin:\ccnuc.Suitr'� I'�riru.\\S� ')ti_'01 •Pll���il_'i9.Ui��•�:lj.i_'i)—'S_':1.j08 / <br /> �����c acv��v i.0 nn <br />