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Kittitas County, WA <br />§ 17A.05.010 CRITICAL AREAS § 17A.05.040 <br />Downloaded from https://ecode360.com/KI6857 on 2025-05-15 <br /> <br /> <br /> <br />CHAPTER 17A.05 <br />FREQUENTLY FLOODED AREAS <br /> <br />§ 17A.05.010. Purpose and intent. <br />It is the purpose of this chapter to reduce the risk to life, property damage, and public facilities that result <br />from floods; mitigate flood hazards that may be exasperated by climate change; and to protect fish and <br />wildlife habitat conservation areas that occur wholly or partially within frequently flooded areas. <br />(Ord. 2021-016, 2021) <br /> <br />§ 17A.05.020. Classification, designation, and mapping. <br />1. Mapped areas. All lands classified as floodway or special flood hazard areas in the Federal Emergency <br />Management Agency report titled "The Flood Insurance Study for the County of Kittitas County" <br />dated November 5, 1980, as now or hereafter amended, with accompanying Flood Insurance Rates and <br />Boundary Maps, are designated as frequently flooded areas. The study and maps are on file at Kittitas <br />County. <br />2. Other areas. The Flood Insurance Study maps may not show all potential flood hazard areas. Kittitas <br />County may designate unmapped frequently flooded areas. Such designations may be appealed <br />pursuant to KCC § 14.08.160. The Director's designation of an unmapped frequently flooded area <br />shall be based upon the following criteria: <br />a. Documented history of flooding; <br />b. Presence of alluvial fan hazards and/or channel migration zones; <br />c. Evidence of stream channel instability and susceptibility to erosion, and/or <br />d. High groundwater flood hazards Ord. 2021-016, 2021; <br /> <br />§ 17A.05.030. Protection standards. <br />1. Avoidance. All new development shall be located outside of frequently flooded areas, if at all possible <br />and will follow the standard mitigation sequencing process, as defined in KCC § 17A.01.100. <br />2. Floodplain storage. New uses or developments shall not reduce the effective flood storage volume, <br />alter the direction of flood flows, or concentrate flood flows within a frequently flooded area. If <br />proposed grading, fill, or other alteration or development would reduce effective flood storage <br />volume, then flood storage mitigation per KCC § 17A.05.050 is required. <br />(Ord. 2021-016, 2021) <br /> <br />§ 17A.05.040. Reporting. <br />The Director's approval of a new use or development within a frequently flooded area shall be contingent <br />upon reporting that meets the requirements of KCC § 14.08.110 through KCC § 14.08.130, the general <br />critical areas report requirements of KCC § 17A.05.040, and the following: <br />1. The nature, location, dimensions, and elevations of the project property; <br />2. Names and location of all lakes, water bodies, streams, and drainage facilities within three hundred <br />(300) feet of the site;