15.04.150 Protection of the floodway.
Located within areas of special flood hazard are areas designated as floodways. The floodway is an extremely hazardous area due to the velocity of floodwaters which carry debris, potential projectiles, and erosion potential; therefore the following provisions apply:
A. No person shall construct or cause the construction of a new structure including fill, substantial improvements or other development in a regulatory floodway unless certification is provided by a registered professional engineer, hydrologist, architect or other registered professional’s statement demonstrating that such encroachments will not result in any increase in flood levels within the community during the occurrence of the base flood discharge.
B. In Zone AE where no regulatory floodway has been designated, no new construction, substantial improvements, or other development (including fill) shall be permitted unless it is demonstrated that the cumulative effect of the proposed development, when combined with all other existing and anticipated development, will not increase the water surface elevation of the base flood more than one foot at any point within the community.
C. If subsection (A) or (B) of this section is satisfied, all new construction and substantial improvements shall comply with all applicable construction standards in FNSBC 15.04.110. (Ord. 2009-55 § 2, 2010; Ord. 92-001 § 6, 1992; Ord. 85-124 § 3, 1985. 2004 Code § 15.04.110.)