(A) Located within the special flood hazard areas established in § 151.031 are areas designated as shallow flooding areas.
(B) These areas have flood hazards associated with base flood depths of one to three feet, where a clearly defined channel does not exist and the water path of flooding is unpredictable and indeterminate; therefore, the following provisions apply.
(1) All new construction and substantial improvements of residential structures shall have the lowest floor, including basement, elevated to or above either the base flood elevation, or in Zone AO, the flood depth specified on the FIRM above the highest adjacent grade. In Zone AO, if no flood depth is specified, the lowest floor, including basement, shall be elevated no less than two feet above the highest adjacent grade.
(2) All new construction and substantial improvements of nonresidential structures shall meet the following:
(a) Have the lowest floor, including basement, elevated to or above either the base flood elevation, or in Zone AO, the flood depth specified on the FIRM above the highest adjacent grade. In Zone AO, if no flood depth is specified, the lowest floor, including basement, shall be elevated no less than two feet above the highest adjacent grade; and
(b) Together with attendant utility and sanitary facilities, shall be completely floodproofed either above or to the base flood elevation in Zone AO, to or above the specified flood depth plus a minimum of one foot so that any space below that level is watertight, with walls substantially impermeable to the passage of water, and with structural components having the capability of resisting hydrostatic and hydrodynamic loads and effects of buoyancy. Certification is required as stated in § 151.066(B).
(Ord. KOC 06-360-411, passed 9-5-2006; Ord. KOC 21-360-201, passed 3-16-2021)