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<br />June 2005 <br /> <br />Upper Arkansas Diversion <br />Structure Inventory <br /> <br />Canon Mills Ditch <br /> <br />Narrative of Structure Components <br /> <br />The diversion structure for the Canon Mills Ditch consists of a 30' concrete weir <br />and 30'x9' concrete structure that is controlled by three mechanically operated <br />sluice gates. There is a 30' long x 11.5' tall concrete headwall with two openings <br />at the entrance of this structure that captures water from the diversion channel. <br />All of the concrete walls of this structure are approximately 11" thick. The sluice <br />gates are 3'-6" wide each, and are situated opposite the concrete headwall at the <br />entrance of the ditch. The ditch downstream of the sluice gates is lined with <br />concrete and is approximately 13' across x 9' deep. There are 7' long x 9' tall <br />walls separating the sluice gates that extend into the ditch on the downstream <br />side of the diversion structure. <br /> <br />This structure is in generally fair/poor condition. The sluice gates appear to be in <br />working order and good condition. The concrete headwall at the entrance of the <br />structure has significant spalling at the two openings near the water surface. The <br />concrete walls along the interior of the structure appear to be in good condition. <br /> <br />Summary of Recommended Repairs <br /> <br />. Repair spalling along the openings of the headwall near the water surface. <br /> <br />Estimated Ranae of Cost <br /> <br />Low <br />