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Kittitas County Shoreline Master Program <br />9. Plan for and facilitate returning river and stream corridors to more natural <br />hydrological conditions, recognizing that seasonal flooding is an essential natural <br />process. <br />10. When evaluating alternate flood control measures, consider the removal or <br />relocation of structures in flood-prone areas. <br />11. Evaluate appropriate opportunities to remove or prevent structures that confine <br />floodplains and inhibit channel migration. <br />B. Requlations <br />1. Use and development in floodplains shall not significantly or cumulatively increase <br />flood hazards or be inconsistent with comprehensive flood hazard management <br />plans adopted pursuant to RCW Chapter 86.12. <br />2. New uses or development in shoreline jurisdiction, including the subdivision of land, <br />shall not be permitted when it would be reasonably foreseeable that the uses andior <br />development would require structural flood hazard reduction measures within the <br />channel migration zone or floodway. <br />3. The following uses and activities may be appropriate and/or necessary within the <br />channel migration zone or floodway: <br />a. Actions that protect or restore the ecosystem-wide processes or ecological <br />functions. <br />b. Forest practices in compliance with the Washington State Forest Practices Act <br />and its implementing rules. <br />c. Existing and ongoing agricultural practices provided that no new restrictions to <br />channel movement occur. <br />d. Mining when conducted in a manner consistent with Section 6.12 Mining, the <br />shoreline environment designation, and with the provisions of WAC 173-26- <br />241(3Xh). <br />e. Bridges, utility lines, and other public utility and transportation structures where <br />no other feasible alternative exists or the alternative would result in unreasonable <br />and disproportionate costs. Where such structures are allowed, mitigation shall <br />address impacted functions and processes in the affected shoreline.f. Repair and maintenance of an existing legal use, provided that such actions do <br />not cause significant ecological impacts or increase flood hazards to other uses. <br />g. Use and development with a primary purpose of protecting or restoring ecological <br />functions and ecosystem-wide processes. <br />h. Modification or additions to an existing nonagricultural legal use, provided that <br />channel migration is not further limited and that the new uses andior <br />development incl ud es appropriate protection of ecolog ical functions.i. Use and development in incorporated municipalities and designated urban <br />growth areas, as defined in RCW Chapter 36.70A, where structures exist that <br />prevent active channel movement and flooding. <br />Chapter 5 <br />March 7,2016 <br />89