Chapter IX — BUILDING REGULATIONS›Article 1 — AMENDMENTS TO THE CALIFORNIA BUILDING STANDARDS CODE [BUILDING CODE]›Division 18 — SOILS AND FOUNDATIONS
Los Angeles Municipal Code § 91.1806 Presumptive Load Bearing Values of Soils
Los Angeles Municipal Code · 2026-10 edition · updated 2026-10-27 · Los Angeles
Cite as: Los Angeles Municipal Code § 91.1806 · Text as of 2026-10-27
(Amended by Ord. No. 185,587, Eff. 7/16/18.)
Section 1806 of the CBC is adopted by reference, except Section 1806.2 of the CBC is not adopted; and, in lieu, LAMC Subsection 91.1806.2 is added.
91.1806.2. Presumptive Load-bearing Values.¶
(Amended by Ord. No. 188,797, Eff. 12/31/25.) The load-bearing values used in design for supporting soils and rock near the surface shall not exceed the values specified in CBC Table 1806.2 unless data to substantiate the use of higher values are submitted and approved. Where the Department has reason to doubt the classification, strength or compressibility of the soil, the requirements of CBC Section 1803.5.2 shall be satisfied.
Presumptive load-bearing values shall apply to materials with similar physical and engineering characteristics and dispositions.
Mud, organic silt and organic clays (OL, OH), peat (Pt) and uncertified fill shall not be assumed to have a presumptive load-bearing capacity.
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