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r <br /> Gcoteclmic�l Enginccring G�,.�untion <br /> 8310 Rim Drive- Ryan <br /> No��cmbcr b,�004 <br /> RMI PilcNo. 2iSO4 <br /> PaRe 2 <br /> 3. Provi�_ -ecommcndutior.s for stripping and greding, huilding setbacks, foundation <br /> placement nnd bem•ing pressmes, canh pressures end earthwork. <br /> 4. Providr _i gcotcchnical rcport discussing our findings, opinions and recommendations for <br /> thc pl;mned construction. <br /> E1IS'TING CONDITIONS <br /> Gencrail <br /> \Ve revieoeJ ihe generul geologi�: conditions of tl�c site, �vhich are sho�rn on the Geologi.: Mep of <br /> Surficial Deposits in thc SeatUe :i0- h�; GO- minutc Quedrangle. W.shington by Yount et al (USGS, <br /> 1943). 'The sile area, slope profile, oUserved conditions, cxisting features, and proposed building <br /> locations are shown on ihe enclosed Plat Plnn (Pieurc 2). Site Plan (Pigure 3) and Schematic Cross- <br /> Section A-A' Q�igurc 4). <br /> Surfacr Conditions <br /> Access to thc sitc (Lot '_') liom Rin: Dri�c is b�' a sharcd drivcway as sho�vn on thc Sitc Plan Q�;gurc 3). <br /> In the c�isting housc thcre is a lower gnragc are� beneath the main Floor, which the owners propose to be <br /> c�tcnd as nn addition. Access to this arca is by n gra��cl drive�cay to the n�rth side of the house. The <br /> concrete foundations of this gnr�igc arca are about 33 feet from tlie top of the blufr and a 16-fooi long <br /> concrcte pnd lies beh�cen them and the top of the hlufC It is proposed to estend thc building to about thc <br /> enJ of ilic conerete pad endine up nbout I6 tcet Gom d�c top of tL•e blufT. 'I�he ground in t�ont of the <br /> garuge arca is essentially (lat. 13clow thc Ilat nrca thc site slopcs du�cn al about 25 dcgrr.es to its base at <br /> the bouom af a gull��, �vhich Icads townrds thc rast. 1�'hcrc not grnvelcd thc si�e is covered with grass and <br /> shrubs anJ east of thc pro?.�scJ c�tension slopcs to�vards the blut7 nt about S to 10 degrees The slope is <br /> about 100 iect high and is covcr�d ��'ith binr,l,h�m� bushes. Thcre arc vine mnples estim�ted ro he nbout <br /> 25 to 30 ycars old .md soi ie conifers to�vards Ihe b�se of the slope. l�he general site conditions, slope <br /> gcometry, ond our interpretation of esisting conditions vithin this arc� are shown on the enclosed Sitc <br /> Plan in Figure 3 and the Schematic Cross-Section in Pigure d. The Cross-Section ���as constructed from <br /> measurements taken on thc site ��ith �digital Ievel mid lape. <br /> 'I'hcrc are no signs of dccp-sc�tcd failures on this and acljoining propertics, <br /> RMI Associates, Ltd. <br />