§ 4.4.4.1. Foundation Requirements:  


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  • Foundation Plans and details for private dwellings and accessory structures located on expansive soils must be designed and sealed by a Texas Registered Engineer.

    1)

    Suspended foundation (foundations with a crawl space) plans and details must show conformance to the provisions of the currently adopted IRC to include but not limited to the following items:

    a.

    Dimensioned locations of all piers/masonry footings/concrete footings

    b.

    Pier/footing sizes and depth below grade

    c.

    Concrete compressive strength

    d.

    Size, spacing and strength of reinforcing steel

    e.

    Size and spacing for all above-grade foundation system members (beams, girders, etc.)

    f.

    Anchorage of super structure to foundation (type of anchor, size, embedment depth, spacing)

    g.

    Foundation requirements at braced wall panels

    h.

    Connection to existing foundation when present

    2)

    Slab-on-grade foundation plans and details must show conformance to the provisions of the currently adopted IRC to include but not limited to the following items:

    a.

    Dimensioned slab layout plan including locations of interior beams, changes in slab elevation, and slab openings

    b.

    Beam sizes (width and depth)

    c.

    Concrete compressive strength

    d.

    Size, spacing and strength of reinforcing steel

    e.

    Anchorage of super structure to foundation (type of anchor, size, embedment depth, spacing)

    f.

    Foundation requirements at braced wall panels

    g.

    Connection to existing foundation when present

    3)

    Footings for decks, pergolas, covered patios, carports, etc. shall be of sufficient detail to show conformance to the provisions of the currently adopted IRC to include but not limited to the following items:

    a.

    Dimensioned locations of all concrete footings

    b.

    Footing sizes and depth below grade

    c.

    Concrete compressive strength

    d.

    Size, spacing and strength of reinforcing steel

    e.

    Connection details for super structure to foundation