Located within areas of special flood hazard established in section 10-4-4 of this chapter are areas designated as floodways. Since the floodway is an extremely hazardous area due to the velocity of floodwaters, which carry debris and potential projectiles, and which have erosion potential, the following provisions apply:
A. Encroachments Prohibited: Encroachments, including fill, new construction, substantial improvements, and other development are prohibited unless certification by a registered professional engineer is provided demonstrating through hydrologic and hydraulic analyses performed in accordance with standard engineering practice that a proposed encroachment would not result in any increase in flood levels during the base flood discharge.
B. Construction Or Reconstruction Prohibited: Construction or reconstruction of residential structures is prohibited within designated floodways, except for: 1) repairs, reconstruction, or improvements to a structure which do not increase the ground floor area; and 2) repairs, reconstruction or improvements to a structure, the cost of which does not exceed fifty percent (50%) of the market value of the structure either: a) before the repair or reconstruction is started, or b) if the structure has been damaged, and is being restored, before the damage occurred. Any project for improvement of a structure to correct existing violations of state or local health, sanitary, or safety code specifications which have been identified by the local code enforcement official and which are the minimum necessary to assure safe living conditions or to structures identified as historic places shall not be included in the fifty percent (50%).
C. Compliance With Certain Provisions: If subsection A of this section is satisfied, all new construction and substantial improvements shall comply with all applicable flood hazard reduction provisions of sections 10-4-7 through 10-4-13 of this chapter. (Ord. 847, 8-17-2009; amd. Ord. 1016, 6-5-2023)