1102 GRAND AVE 2016-01-01 MF Import

Octohcr ll,2011 Mr. Ilarcey Jubie I,b�A Job No. 11-0G4 I'agc I 1 grading ��'ork, tlic construction mcdlod and tcchniyuc should havc litdc impact on thc stabilit7 uf the adjacent steep slope. Sin�e the dri�•eH'�}' �� utility liues «�ill approuch lhe new residence from t6c strcct sidc away from dic adjaccnt stccp slopc, dri��c��ay construction und utilih� instaUation should also ha��c minimal impact on th: stabilit}' ofdic ad,jacent steep slope. To maintain the stability of the adjaceut stecp �lope, the new residence should be sufticicntl�° set hack frotn tlte crest of the slope of �radient 4i1% or morc. It is our opinion that if d�c nc�v residen�e is set back at lcast 1� feet from the crr.st of the ad,jacent stecp slope of 40% or more gradc,lhe ncw residenee should be able to ma�atain long-term stability. BUILDIIVG FOUNDATIOrS Com�entional looting lowidations may bc used to support the proposed ne�e residcuce. The t'ootin; loundatioiu sliould be cunstructed un or into undistutbcd, deuse silty line sand and/or lilyd fine sandy silt soils, or on swcmml fill placed on d�ese competent native 6asal soils. \Vater ,hould not be allo��ed to uccumulate in eseavaled footing trencltes. Disturbed louse and over- snturuted soils in liioung trenchcs should bc completely removed do��r to fimi undisnvbcd nati�•c soils and n�atcr should puntped drv prior to puuring�uncrete 1'or the footings. �f the ahove recommcndntions arc follo��ed. our reconmiended desien criteria for footing foundations an: Hs follows: . �Ulo��'ablc soil bearing pressure, including dead und �i`'e �o+�c1s, should not hc morc thnn 3,000 psf for f:wtings puured on or into dense silty scmd ancllor hard fine svidy silt suil�, and not tnore dian 2.500 psf for footing� poured un structural fill cunstructcd on ilr:sc competent busul soils. 'I'he liwting bearing soils should bc ��crificd on-sitc L;� a geotechnical enginccr aftcr thc footiue trcnchcs havc becu cxcavated and before the footings arc pourcd. LIU & ASSOCIATES, INC. ij/j'� i