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Kittitas County, WA $ 17A.0s.010 CRITICALAREAS $ 17A.0s.040 CHAPTER 174.05 FREQUENTLY FLOODED AREAS $ 17A.05.010. Purpose and intent. It is the purpose of this chapter to reduce the risk to life, property damage, and public facilities that result from floods; mitigate flood hazards that may be exasperated by climate change; and to protect fish and wildlife habitat conservation areas that occur wholly or partially within frequently flooded areas. (Ord.202l-016,2021) S 17A.05.020. Classification, designation, and mapping. l. Mapped areas. All lands classified as floodway or special flood hazard areas in the Federal Emergency Management Agency report titled "The Flood Insurance Study for the County of Kittitas County" dated November 5, 1980, as now or hereafter amended, with accompanying Flood Insurance Rates and Boundary Maps, are designated as frequently flooded areas. The study and maps are on file at Kittitas County. 2. Other areas. The Flood Insurance Study maps may not show all potential flood hazard areas. Kittitas County may designate unmapped frequently flooded areas. Such designations may be appealed pursuantto KCC $ 14.08.160. The Director's designation of an unmapped frequently flooded area shall be based upon the following criteria: a. Documented history of flooding; b. Presence of alluvial fanhazards andlor channel migration zones; c. Evidence ofstream channel instability and susceptibility to erosion, and/or d. High groundwater flood hazards Ord.2021-016,2021; $ 17A.05.030. Protection standards. 1. Avoidance. All new development shall be located outside of frequently flooded areas, if at all possible and will follow the standard mitigation sequencing process, as defined in KCC $ 17A.01.100. 2. Floodplain storage. New uses or developments shall not reduce the effective flood storage volume, alter the direction of flood flows, or concentrate flood flows within a frequently flooded area. If proposed grading, fill, or other alteration or development would reduce effective flood storage volume, then flood storage mitigation per KCC $ 174.05.050 is required. (Ord.2021-016,2021) S 17A.05.040. Reporting. The Director's approval of a new use or development within a frequently flooded area shall be contingent upon reporting that meets the requirements of KCC $ 14.08.110 through KCC $ 14.08.130, the general critical areas report requirements of KCC $ 17A.05.040, and the following: l. The nature, location, dimensions, and elevations of the project propeffy; 2. Names and location of all lakes, water bodies, streams, and drainage facilities within three hundred (300) feet of the site; Downloaded from https://ecode360.com/Kl6857 on 2025-05-15