5121 CHINOOK DR 2016-01-01 MF Import

Thomn Jones JN 90030 M�rch 14, 1906 Pp�S overoxc�vatlon and fhe fooUnp v�idtl�. For example, an overoxcavaUon extendiny 2 feet betow the bottom of a 3-foot-wide fooUnp muat be at Nast 6 fest wide at tha baas of the excavaUon. If kan concnb is wed, the overoxcavatlon n�ed only extend 8 inch�s b�yond tM�dp�s of tl�s footlnp. An allowabl� beadn� proasuro of 2,000 pounds per squan foot ts approprlats for footlnp� conatruct�d accorclin� ro the above rocommendaUona. A one-third incx�a�e in 1hi�deupn b�aAnp prossuro may be uted when conaiderinp ahort-tertn wind or�etsm� bads. For tM above desipn attsria, ft is anddpated that fhe total post-constructlon adlement of footlnps founded on a�mpabnt, nativs soil, or on afructural rtil up to 5 fest in thidm�u,will b� �bout orM-haR tnch,wMh diff�nntl�l attlemsnb on the order of ons-quarter tnch in a distance of 60 fe�t alonp a contlnuous tootlnp. Latsral losds due to wind or sefamic foress may be rosisted by Mctlon betwNn fhe toundatlon and th� bsarinp �oil, or by paaaivs earth prouuro actlnp on the vertical, emb�dd�d portbns of ths foundatlon. For ths latter conditlon, the found�don must b� Mther pourod directly �qain� rolatively level, undi�turbed toil or sumounded by I�vsl, sUudural flll. W� rocommend usinp th� followinp de�fpn velues for ths foundatlon's roaiatancs to Iateni lo�dinp: Parameter Dealan Valus Coeffldent of Fdctlon 0.30 Paseivs E�rth Pnasun 300 pcf Whero: 1. pcf is pounde per cubic foot 2. Paaaive eaRh pressure is computed uaing fhe equivalent fluid denaity. If the pround in iront of a toundation la looee or elopinp, the pauive earth pnswro piven abow i wlll not bs �ppropriate. Ws rocommend � satety i�ctor of at leaat 1.6 for tM Poundatlon's ' roaistena W lateral loadinp,when usinp ths abov�d��ipn valu�:. �Ismic Consid�radons Ths sita is locsted within Sefsmic Zone 3 aa illustrated on Fipuro No. 23-2 of ths 1991 Unifortn Buildfnp Code (U9C). In accordance with Table 23,1 ot the 1881 UBC, ths aite wil proft�� i� b�st reprosented by P��file Typa S3. The flll and the undertyinp dense, sifty �and and tift an rwt suaceptlbie to ae(sRi�.. Iiquefaatfon. Sl�bs-on-0rad� -- The yarepe flooro on Lots 10, 11, and 12 may be constructed ae alabt-on-ptad� atop a minimum ot 1 foot of compacted, structural 811. We recommend placinp concrete slaba over at least 1 foot ot atructural 811 to provide more unffortn aupport tor ths alab, whero ths subprads I: soR or attle: more rapidly than the surrounding pround. Ths aubprade sofl must be in a flrtn, non-yfNdinp conditfon at the Ume of slab consWcNon or underslab flll placement. Any wR aroat encounbnd should be excavated and replaced with select, Imported, �Wdural flil. Thess tlab� shouid b� oeo�cxoor�ama,�xrs,wc.