(a) The Flood Plain Districts described below shall be overlays to the existing underlying districts as shown on the official Zoning Map, and as such, the provisions for the Flood Plain Districts shall serve as a supplement to the underlying district provisions.
(b) Where there happens to be any conflict between the provisions or requirements of any of the flood plain districts and those of any underlying district, the more restrictive provisions and/or those pertaining to the flood plain districts shall apply.
(c) In the event any provision concerning a flood plain district is declared inapplicable as a result of any legislative or administrative actions or judicial discretion, the basic underlying district provision shall remain applicable.
(d) The boundaries of the flood plain districts are established as part of the official Zoning Map of the City, which is declared to be a part of this article and which shall be kept on file at the City offices.
(e) The various flood plain districts shall include areas subject to inundation by waters of the 100-year flood. The basis for the delineation of these districts shall be the Flood Insurance Study for the City prepared by the FEMA and dated February 15, 1984, or any subsequent study:
(1) The Floodway District. The areas included in this District are specifically defined in the Floodway Data Table of the above referenced Flood Insurance Study and are shown on the accompanying Flood Boundary and Floodway Map.
(2) The Flood-Fringe District. The basis for the outermost boundary of this District shall be the 100-year flood elevations contained in the flood profiles of the above referenced Flood Insurance Study (FIS) and as shown on the accompanying Flood Boundary and Floodway Map.
(3) The General Flood Plain District. These areas are shown on the Maps accompanying the FIS prepared by FEMA. Where the specific 100-year flood elevation cannot be determined for this area using other sources of data such as the U.S. Army Corps of Engineers, Flood Plain Information Reports, U.S. Geological Survey - Flood Prone Quadrangles, etc. then the applicant for the proposed use, development and/or activity shall determine this elevation in accordance with hydrologic and hydraulic engineering techniques. Hydrologic and hydraulic analyses shall be undertaken only by professional engineers or others of demonstrated qualifications, who shall certify that the technical methods used correctly reflect currently accepted technical concepts. Studies, analyses, computations, etc., shall be submitted in sufficient detail to allow a thorough technical review by the City.
(f) The delineation of any of the flood plain districts may be revised by the governing body where natural or man-made changes have occurred and/or more detailed studies are conducted or undertaken by the U.S. Army Corps of Engineers, a River Basin Commission or other qualified agency or individual. These sources shall document the notification of such change. Prior to any such change, however, approval must be obtained from the Federal Insurance Administrator.
(Ord. 13235. Passed 6-21-06.)
(Ord. 13235. Passed 6-21-06.)
(g) Initial interpretations of the boundaries of the flood plain districts shall be made by the City Engineer. Should a dispute arise concerning the boundaries of any of the districts, the Zoning Board of Appeals shall make the necessary determination. The person questioning or contesting the location of the district boundary shall be given a reasonable opportunity to present his case to the Board and to submit his own technical evidence if he so desires.