§ 17.8.345 FLOODWAYS.

   Located within areas of special flood hazard established in § 17.8.315B. 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, the following provisions apply:

   A.   Except as provided in paragraph C. below, prohibit encroachments, including fill, new construction , substantial improvements , and other development unless certification by a registered professional civil engineer is provided demonstrating through hydrologic and hydraulic analyses performed in accordance with standard engineering practice that encroachments shall not result in any increase in flood levels during the occurrence of the base flood discharge.

   B.   If § 17.8.345A. is satisfied, all new construction and substantial improvements shall comply with all applicable flood hazard reduction provisions of § 17.8.335, Provisions for Flood Hazard Reduction.

   C.   Temporary structures placed in the floodway : Relief from no-rise evaluation, elevation or dry flood -proofing standards may be granted for a non-residential structure placed during the dry season (June – October) and for a period of less than 90 days. A plan for the removal of the temporary structure after the dry season or when a flood event threatens shall be provided. The plan shall include disconnecting and protecting from water infiltration and damage all utilities servicing the temporary structure .

   D.   Temporary storage of goods and materials, not including hazardous materials, is allowed in the floodway for a period of less than 90 days within the dry season (June – October).

(Ord. 2009-01, passed 3-9-2009; Ord. 2013-3, passed 5-22-2013; Ord. 2018-07, passed 10-8-2018)