Within the special flood hazard areas designated as Zone A (also known as Unnumbered A Zones) and established in section 9.8.032 of this chapter, where no base flood elevation (BFE) data has been provided by FEMA, the following provisions, in addition to the provisions of section 9.8.051 of this section 9.8.05, shall apply:
(A) The BFE used in determining the flood protection elevation (FPE) shall be determined based on the following criteria:
1. When base flood elevation (BFE) data is available from other sources, all new construction and substantial improvements within such areas shall also comply with all applicable provisions of this chapter and shall be elevated or floodproofed in accordance with standards in sections 9.8.051 and 9.8.052 of this section 9.8.05.
3. Require that all new subdivision proposals and other proposed developments (including proposals for manufactured home parks and subdivisions) greater than fifty (50) lots or five (5) acres, whichever is the lesser, include within such proposals base flood elevation data. Such base flood elevation (BFE) data shall be adopted by reference in accordance with section 9.8.032 of this chapter and utilized in implementing this chapter. The applicant/developer shall submit an application for a Conditional Letter of Map Revision (CLOMR) prior to preliminary plat approval and have obtained a Letter of Map Revision (LOMR) prior to any building permits for structures being issued.
See FEMA 480 and/or FEMA 265 for further information.
4. When base flood elevation (BFE) data is not available from a Federal, State, or other source as outlined above, the lowest floor shall be elevated or floodproofed (non-residential) to two feet (2.0') above the highest adjacent grade (HAG) at the building site or to the flood protection elevation (FPE) whichever is higher, as defined in section 9.8.02 of this chapter. All other applicable provisions of section 9.8.052 of this section 9.8.05 shall also apply. (Ord. 977, 1-3-2019, eff. 2-1-2019)