A. General Standards:
1. All development within an A zone or a D zone shall: a) be subject to the procedural requirements of sections 8-3F-6 and 8-3F-7 of this article, as applicable; and b) require determination of the base flood elevation (except for accessory or agricultural structures that meet the requirements of section 8-3F-7A11 of this article).
2. Drainage: Adequate drainage paths around structures on slopes shall be provided in an A zone or a D zone to guide floodwaters around and away from proposed structures.
3. Grading: Any site work in excess of ten (10) cubic yards of cut or fill will require a detailed grading permit. All grading shall be done so as to minimize impacts and maintain compensatory storage within all special flood hazard areas. Depending on the extent and nature of the grading, a FES may be required along with an LOMC.
B. New Development And/Or Substantial Improvement: All new development, and/or substantial improvement of both residential and nonresidential structures located within an A zone or a D zone, except those granted relief per subsection 8-3F-7 of this article, shall comply with the following:
1. Base Flood Elevation (BFE) Establishment: If BFE data has not already been established within an A zone or a D zone, BFE data shall be established by the following methods:
a. The floodplain administrator may require applicants to submit information including, but not limited to, historical data, high water marks, photographs of past flooding and/or any other available data. The applicant shall propose a BFE based on the available data. The floodplain administrator shall concur with the proposed BFE or provide justification or additional information to support a different BFE. Prior to issuance of any building permit, an LOMC shall be prepared as set forth in subsection 8-3F-6D4 of this article, submitted to and approved by FEMA.
b. If the flood data sources in subsection B.1.a of this section are not available to establish a BFE to the satisfaction of the floodplain administrator, an FES as set forth in subsection 8-3F-6D4 of this article, shall be submitted to and approved by the floodplain administrator prior to commencement of any development. Prior to issuance of any building permit, an LOMC shall be prepared as set forth in subsection 8-3F-6D5 of this article, submitted to and approved by FEMA.
C. Subdivision And/Or Manufactured Home Park: An FES, as set forth in subsections 8-3F-6D4 and 8-3F-7A8 of this article, shall be submitted concurrently with an application for a subdivision or manufactured home park within an A zone or a D zone. The applicant and/or owner shall submit a signed copy of an LOMC prior to approval of the final plat or prior to issuance of any building permit within a subdivision or manufactured home park.
E. Recreational Vehicle: Any recreational vehicle placed on property within an A zone or a D zone shall meet the following additional standards:
1. The recreational vehicle shall be on site for fewer than one hundred and eighty (180) consecutive days; and
2. The recreational vehicle shall be fully licensed and ready for highway use, be on its wheels or jacking system, be attached to the site only by quick disconnect type utilities and security devices, and have no permanently attached additions; or
3. The recreational vehicle shall meet the anchoring requirements set forth in subsection D of this section.
F. Pit, Mine Or Quarry: Approval of an FES as set forth in subsection 8-3F-6D4 of this article, shall be required as a condition of approval for any proposed pit, mine or quarry. The FES shall demonstrate that the extraction site will be designed to avoid river avulsion. The FES must be approved prior to commencement of the use or breaking ground. Gravel mining operations or excavations are not permitted within one hundred feet (100') of the top of river bank regardless of floodway or floodplain designation. Material stockpiles and permanently installed structures shall not be located within the regulatory floodway. (Ord. 835, 12-3-2014; amd. Ord. 848, 12-9-2015; Ord. 914, 6-10-2020)