Within the special flood hazard areas designated as zone A (also known as unnumbered A zones) and established in section 10-3-2 of this title, where no base flood elevation (BFE) data has been provided by FEMA, the following provisions, in addition to the provisions of section 10-7-1 of this chapter, 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 title and shall be elevated or floodproofed in accordance with standards in sections 10-7-1 and 10-7-2 of this chapter.
B. All subdivision, manufactured home park, and other development proposals shall provide base flood elevation (BFE) data if development is greater than five (5) acres or has more than fifty (50) lots/manufactured home sites. Such base flood elevation (BFE) data shall be adopted by reference in accordance with section 10-3-2 of this title and utilized in implementing this title.
C. When base flood elevation (BFE) data is not available from a federal, state, or other source as outlined in this section, the applicant may submit a site specific engineering analysis to determine BFE or the lowest floor shall be elevated or floodproofed (nonresidential) to two feet (2') above the "highest adjacent grade (HAG)" at the building site or to the "flood protection elevation (FPE)" whichever is higher, as defined in chapter 2 of this title. All other applicable provisions of section 10-7-2 of this chapter shall also apply. (Ord. 147, 2-9-2017)