1. Residential structures. Within any designated Floodway (FW), Flood-Fringe (FF) or General Floodplain (FA), the lowest floor (including basement) of any new or improved residential structure shall be at least one and one-half (1 1/2) feet above the one-hundred-year-flood elevation.
2. Nonresidential structures.
(a) Any nonresidential structure or part thereof, having a lowest floor which is not elevated to at least a one-hundred-year-flood elevation, shall be floodproofed in a completely or essentially dry manner in accordance with the Wl or W2 space classification standards contained in the publication entitled "Flood-Proofing Regulations," published by the United States Army Corps of Engineers (June 1972) or with some other equivalent standard. All plans and specifications for such floodproofing shall be accompanied by a statement certified by a registered professional engineer or architect which states that the proposed design and methods of construction are in conformance with the above-referenced standards.
(b) Within the identified Floodplain (FP) District, fully enclosed spaces below the lowest floor of any new or substantially improved structure shall be prohibited.
3. Manufactured homes. Within the Floodway (FW), manufactured homes shall be prohibited.