RECOVERY--Z--RECOVERY -- Replace Gate Packing Gland Rings, John Martin Dam, CO

RECOVERY. Work for this contract consists of modifying the two existing bulkhead gates by installing a 5 gate valve in each at John Martin Dam, Hasty, Bent County, CO. The purpose of the gate valves is to permit the flooding of the conduit necessary for the release of the bulkhead gate after its placement. The gate valves shall be capable of manual operation from the dam crest spillway bridge when the bulkhead gates are placed at the conduit inlets. The water-side packing rings from the #2, #3, #4 and #5 emergency gates packing glands located in the operating gallery of the dam will be removed. Prior to working on the packing glands, the bulkhead gate must be placed successively at each of the conduit inlets. Placement of the bulkhead gate will require a mobile crane operating from the dam bridge. Applying as test load of 20,000 pounds force to the packing gland seats of emergency gates #2, #3, #4 and #5 to insure that they are secure, replacing packing wi th new rings of the appropriate type and number, and testing completed work for leakage and correct if necessary will also be required. Contract duration is 60 calendar days. NAICS Code 811310 with a size standard of $7 Million.