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2. Cut-and-fill slopes and backfilled areas shall be stabilized with brush matting and buffer <br />strips and re-vegetated with native grasses, shrubs, or trees to prevent loss of shoreline <br />ecological functions and processes. <br />3. In-stream structures shall be constructed and maintained in a manner that does not <br />degrade the quality of affected waters. The jurisdictions may require reasonable conditions <br />to achieve this objective, such as setbacks, buffers, or storage basins. <br />4. Natural in-stream features such as snags, uprooted trees, or stumps should be left in place <br />unless it can be demonstrated that they are causing significant bank erosion or higher <br />flood stages, or pose an unavoidable hazard to navigation. <br />5. In-stream structures shall allow for natural groundwater movement and surface runoff. <br />6. A professionally engineered design is required for any proposed in-stream structure. <br />7. The design of all dams and the suitability of the proposed site for dam construction shall <br />be certified by a professional engineer licensed in the state of Washington. The <br />professional design shall include a maintenance schedule. <br />8. For all dams that are not regulated by either the Federal Energy Regulatory Commission <br />licensing procedures, or the Washington State Department of Ecology reservoir permit <br />requirements, a maintenance agreement and construction bond for one hundred fifty <br />percent (150%) of the cost of the structure shall be filed with the Administrator prior to <br />construction. The maintenance agreement shall specify who is responsible for maintenance, <br />shall incorporate the maintenance schedule specified by the design engineer, shall require <br />annual inspections by a civil engineer licensed in the state of Washington and shall <br />stipulate abandonment procedures which shall include, where appropriate, provisions for <br />site restoration. <br />9. No in-stream structure shall commence without having obtained all applicable federal, <br />state, and local permits and approvals, including but not limited to a hydraulic project <br />approval (HPA) from the Washington State Department of Fish and Wildlife. <br />10. Shoreline modification projects shall be designed and constructed to avoid or minimize <br />impacts to sediment transport. <br />(Ord. 2016-006, 2016) <br /> <br />17B.06.120 Mining. <br />A. Policies. Pursuant to RCW 36.70A.480, the mining policies of the 2016 2021 Kittitas County <br />Shoreline Master Program shall be considered as policies of the Kittitas County Comprehensive <br />Plan. <br />B. Regulations. <br />1. Mining below the OHWM of a river shall be permitted only when: <br />a. Removal of specified quantities of sand and gravel or other materials at specific <br />locations will not adversely affect the natural processes of gravel transportation for the <br />river system as a whole; and <br />b. The mining and any associated permitted activities will not have significant adverse <br />impacts to habitat for priority species nor cause a net loss of ecological functions of <br />the shoreline. <br />c. Determination of whether the two provisions above have been met shall be made <br />consistent with RCW 90.58.100(1) and WAC 173-26-201(2)(a). Such evaluation of <br />impacts should be appropriately integrated with relevant environmental review