14-020 - City of Kent - Briscoe-Desimone Levee Repair

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EXHIBIT C Levee Inspection, Maintenance, Operation and Repair 1. The Levee shall be maintained and operated consistent with the District's Flood Hazard Management Plan Policy PROJ -6, Flood Protection Facility Design and Maintenance Objectives (or its successor) which states as follows: "[The District] should construct new flood protection facilities and maintain, repair or replace existing flood protection facilities in such a way as to: • Require minimal maintenance over the long term, • Ensure that flood or channel migration risks are not transferred to other sites, ® Protect or enhance aquatic, riparian and other critical habitats, and ® Protect or enhance multiple beneficial uses of flood hazard area." 2. Levee maintenance and operation shall be based on a risk -based analysis approach. If a risk -based approach is not acceptable to FEMA, and as a result FEMA fails to issue a CLOMR or LOMR for the Levee, the District shall not be obligated to operate and maintain the Levee. 3. The upper 1/3 of the riverward slope above the OHWM may be mowed and maintained in grass cover. 4. The Levee crest shall be maintained to provide for unimpeded vehicular access at all times, including access by heavy construction equipment and earth - hauling machinery. 5. The landward Levee slope may be mowed and maintained in grass cover. 6. The 15 -foot maintenance access and inspection area along the landward Levee toe may be mowed and maintained in grass cover. 7. All such mowed areas may alternatively be planted and maintained with native riparian woody vegetation. 8. Upon acceptance of completed Levee construction by the District, the Levee, as constructed to these standards, shall be inspected by the District prior to leaf emergence each spring, at low -flow conditions in the late Summer or early Fall, prior to the onset of 17 EC approved (RB -RK)