§ 141-19. Floodways.

A. 

Located within areas of special flood hazard established in § 141-4 are areas designated as "floodways." Since the floodway is an extremely hazardous area due to the velocity of floodwaters which carry debris, potential projectiles and erosion potential and in areas where floodways have been designated, encroachments shall be prohibited, including fill, new construction, substantial improvements and other developments, unless certification, with supporting technical data, by a registered professional engineer, is provided demonstrating that the encroachments shall not result in any increase in flood levels during occurrence of the base flood discharge. When utilizing data other than that provided by the Federal Emergency Management Agency, the following standard applies: Select and adopt a regulatory floodway based on the principle that the area chosen for the regulatory floodway must be designed to carry the waters of the base flood without increasing the water surface elevation of that flood more than one foot at any one point.

B. 

If Subsection A is satisfied, all new construction and substantial improvements shall comply with all applicable flood hazard reduction provisions of § 141-17.