(A) No encroachments, including fill, new construction, substantial improvements or new development shall be permitted, unless a determination of the base flood elevation (BFE) is provided.
(B) 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 §§ 152.40 and 152.41 of this code.
(3) All subdivision, manufactured home park and other development proposals shall provide base flood elevation (BFE) data if development is greater than five acres or has more than 50 lots/manufactured home sites. Such base flood elevation (BFE) data shall be adopted by reference in accordance with § 152.07 and utilized in implementing this chapter. The applicant or 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 reference level shall be elevated or floodproofed (non-residential) to or above the flood protection elevation, as defined in § 152.05 of this code. All other applicable provisions of § 152.41 of this code shall also apply.
(Prior Code, § 11-1-5)