2719 W Huckleberry Rd - Plan - Laserfiche WebLink

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2717 Huckleberry Rd, Unit #2 Santa Ana, CA 92706 New Building Footings Minimum depths for new building footings should be 24 inches below the adjacent finished grades. Minimum widths for isolated columns/pad footings should be 24-inch, and for continuous wall footings should be 12- inches for one-story and 15-inches for two-story. Minimum footing reinforcement should be two # 5 rebar at top and two # 5 re-bar at bottom. New underpinning pad footings, if any should have a minimum depth of 1 foot below the bottom of the existing footings. New Interior Building Slabs-on-Grade New building slabs-on-grade should be minimum 5 inches thick, reinforced with #4 rebars at 16-inches on- centers both ways, or equivalent, placed at mid-height of the slab. New slabs should be underlain by a 4 inch thick layer of ½” or larger clean aggregate. For moisture sensitive floor areas, the slabs should be underlain by minimum 15-mil polyethylene moisture barrier (such as Visqueen). The moisture barrier should be properly lapped and sealed at joints and around any breaks such as openings for utility conduits. Note: our recommendations are only a minimum. The city requirements and or applicable California Building Code / Cal Green Code will govern and should be followed. In addition, the entire slab-on-grade system including the capillary break/vapor barrier must be properly designed by the civil / structural design engineer of record (but not by the geotechnical engineer) and be reviewed and approved by the controlling governmental agency prior to construction. New Exterior Slabs-on-Grade To reduce the potential for excessive cracking, new exterior concrete slabs-on-grade, if any, should be minimum 4 inches thick, provided with construction or weakened plane joints at frequent intervals (e. g., every 6 feet or less). Provision of a 2-inch thick layer of crushed rock, gravel, or clean sand to be placed beneath the slabs and/or reinforcement, such as #3 rebar at 24 inches on-centers, both ways or equivalent, placed at the mid height of the slab should be considered. The subgrade soils for the exterior slabs should be properly recompacted. Slab Subgrade Pre-Saturation For conservative purposes, the conventional presaturation of the slab subgrade earth materials to 140 % of the optimum moisture content to minimum 2 ft deep should be performed. Page 8 of 22