Located within the special flood hazard areas established in § 151.07, are areas designated as shallow flooding areas. These areas have special flood hazards associated with base flood depths of 1 to 3 feet where a clearly defined channel does not exist and where the path of flooding is unpredictable and indeterminate. In addition to §§ 151.50 and 151.51, all new construction and substantial improvements shall meet the following requirements:
(A) The reference level shall be elevated at least as high as the depth number specified on the Flood Insurance Rate Map (FIRM), in feet plus a freeboard of 3 feet above the highest adjacent grade or to or above 8 feet NAVD 1988, whichever is the greater elevation.
(B) Non-residential structures may, in lieu of elevation, be floodproofed to the same level as required in § 151.57 so that the structure, together with attendant utility and sanitary facilities, below that level shall be 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 in accordance with §§ 151.50(C)(1) and 151.51(B).
(C) Adequate drainage paths shall be provided around structures on slopes, to guide floodwaters around and away from proposed structures.
(Ord. passed 9-20-2006; Am. Ord. passed 5-3- 2020)