(A) In all areas of special flood hazard where base flood elevation data has been provided as set forth in § 154.020, the following provisions are required.
(B) New construction or substantial improvement of any residential structure shall have the lowest floor, including basement, elevated no lower than one foot above the base flood elevation. Should solid foundation perimeter walls be used to elevate a structure, openings sufficient to facilitate the unimpeded movements of flood waters shall be provided.
(Ord. passed 6-1-1987)