(A) Retaining walls constructed in connection with grading plans shall be constructed of reinforced concrete, reinforced masonry block, reinforced concrete block and geosynthetic fabric or a combination of the aforementioned materials. Retaining walls constructed in connection with grading plans shall be designed to resist all earth pressures acting upon them, including embankment or structure/vehicle surcharge loads. Retaining walls constructed in connection with grading plans shall be designed by a registered civil or structural engineer and submitted to the Public Works Department for review and approval prior to installation. All retaining walls shall be shown on the grading plans, including appropriate structural calculations. Sufficient top of wall (TW) and top of footing (TF) elevations shall be shown on the grading plans to determine the overall height of the retaining wall at various locations.
(B) Retaining walls not constructed in connection with grading plans shall be designed by a registered civil engineer or structural engineer and shall be submitted to the Building Department with appropriate structural calculations for review and approval.
(Ord. 3378 § 5 (part), 2023; Ord. 2568 § 1, 2002.)