(a) Residential construction. New construction and substantial improvement of any residential structure (including manufactured homes) shall have the lowest floor and the associated electrical, ventilation, plumbing, heating and air conditioning equipment (including ductwork), and other service facilities, elevated no lower than 4 feet above the base flood elevation. No basements are permitted. Should solid foundation perimeter walls be used to elevate a structure, openings sufficient to facilitate the unimpeded movements of floodwaters shall be provided in accordance with § 8-34(f).
(b) Non-residential construction. New construction and substantial improvement of any commercial, industrial, or non-residential structure (including manufactured modular buildings) shall have the lowest floor and the associated electrical, ventilation, plumbing, heating and air conditioning equipment (including ductwork), and other service facilities elevated no lower than 4 feet above the level of the base flood elevation. Should solid foundation perimeter walls be used to elevate a structure, openings sufficient to facilitate the unimpeded movements of floodwaters shall be provided in accordance with § 8-34(f). No basements are permitted. Structures may be floodproofed in lieu of elevation provided that all areas of the structure below the required elevation are watertight with walls substantially impermeable to the passage of water, using structural components having the capability of resisting hydrostatic and hydrodynamic loads and the effect of buoyancy.
A SC registered professional engineer or architect shall certify that the standards of § 8-33 are satisfied. Such certifications shall be provided to the official as set forth in §§ 8-29(b)(7) and 8-29(b)(8). A variance may be considered for wet floodproofing agricultural structures in accordance with the criteria outlined in § 8-44. Agricultural structures not meeting the criteria of § 8-44 must meet the nonresidential construction standards and all other applicable provisions of this article. Structures which are floodproofed are required to have an approved maintenance plan with an annual exercise. The maintenance plan must be approved by the local administrator and notification of the annual exercise shall be provided to same.
(c) Critical development.
(2) New critical development shall not be permitted in the 1 % or the 0.2% area of special flood hazard.
(Ord. 4085, § 2, passed 2-20-2007; Ord. 4631, § 2, passed 6-17-2014; Ord. 5031, passed 11-6-2018; Ord. 5276, passed 4-6-2021)