501-1. FOOTING DEPTH.
A. Maximum Frost Penetration Depth.
B. Alternate Seasonal Wetting and Drying.
C. Footing Depth.
502. FOUNDATION MATERIALS.
503. STRUCTURAL REQUIRE-MENTS
503-1. FOUNDATION REQUIREMENTS.
A. Height Above Grade.
B. Minimum Foundation Wall and Wall Footing Thickness.
503-2. PIER AND COLUMN FOOTING REQUIREMENTS.
A. Unusual Conditions.
B. Minimum Pier and Pier Footing Thickness.
503-3. FOOTING REINFORCING (HORIZONTAL).
503-4. MASONRY PIERS AND WALLS.
503-5. CRAWL SPACE REQUIRE-MENTS
A. Height Requirement.
B. Interior vs. Exterior Ground Level.
1. Adequate gravity drainage to a posi-tive out fall is provided, or
2. The permeability of the soil and the location of the water table is such that water will not collect in the crawl space, or
3. Drain tile and automatic sump pump system are provided.
503-6. FOUNDATION WALLS FOR BASEMENTS. The design and reinforcing of basement walls is NOT in the scope of this document. Refer to local codes and ordinances for guidance. Refer also to CABO, Section R-304: "Foundation Walls." Design the unit’s foundation based on soil conditions present at the site.
503-7. BACK FILL.