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CITY OF SANTA ANA <br />Planning and Building Agency <br />structural object, if any to ensure no damage is done to the existing object. <br />For this project, the proposed new structure will be located far away from <br />building. Therefore, temporary excavation for this project does not impact <br />footings. <br />BUILDING FOUNDATION DESIGN GUIDELINES <br />Geotechnical Parameters For Structural <br />Approved <br />FOR PERMIT ISSUANCE <br />For conservative purposes, the following "lowest" code values should be used for <br />structural design, as needed. <br />a. Allowable vertical bearing earth pressure: 1,500 psf. <br />An increase of one-third is permitted when using the alternative load <br />combinations that include wind or earthquake loads. <br />b. Lateral bearing passive earth pressure: 100 psf. per foot into competent materials <br />below the finished ground surface. <br />An increase of one third is permitted when using the alternative load <br />combinations that include wind or earthquake loads. <br />c. Lateral Sliding Resistance: cohesion = 130 psf. <br />The cohesion value is to be multiplied by the contact area. <br />In no case shall the lateral sliding resistance exceed one-half the dead load. <br />d. Soil unit weight: 120 pcf. <br />New BuildingFgs <br />In general, the foundation system for the proposed structure must be properly designed by <br />the civil/structural design engineer of record for this project and reviewed and approved <br />by the city prior to construction. <br />New building footings should be embedded minimum 24-inches below the adjacent <br />lowest finished grade. Minimum widths for isolated columns/pad footings, if any, should <br />be 24-inches, and for continuous wall footings should be 15-inches for one-story and 18- <br />inches for two story portions, if any. <br />Minimum reinforcement for new continuous footings should be two #5 re -bars at top and <br />two #5 re -bars at bottom. <br />Page 7 <br />