The approved floodplain maps on file in the office of the building division may designate certain flood hazardous areas as floodways. Such floodways are extremely hazardous due to the velocity of flood waters which carry debris, potential projectiles, and erosion potential. Within such floodways, the following provisions apply:
A. Prohibit encroachments including fill, new construction, substantial improvement, and other new development unless certification by a licensed architect or registered civil engineer is provided demonstrating that such encroachments shall not result in any increase in the base flood elevation during the occurrence of the base flood discharge.
B. If subpart A of this section is satisfied, all new construction, substantial improvement, and other proposed new development shall comply with all other applicable flood hazard reduction provisions of this chapter.
(Res. No. 124 96-97)