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HomeMy WebLinkAboutLake Oroville Community Update - Continued Construction on the Main Spillway Menchaca, Clarissa From: DWR Oroville Spillways <oroville@water.ca.gov> Sent: Wednesday, September 20, 2017 12:47 PM To: Menchaca, Clarissa Subject: (Lake Oroville Spillways Construction Updates View in browser x _w._..._ Lake Oroville, Community Update September' 20, 2017 Today the IClepartment of Water Resources (DWR) provided an update on construction work on the Lake roville Spillways Emergency Recovery Project. Continued onstru ti n on the Main Spillway WR remains focused on meeting its primary objective of repairing and reconstructing the main spillway by November 1 to handle flows of 100,000 cubic feet per second (cfs). Work will continue well past November on both the main spillway and emergency spillway. The state's contract with I iewit Infrastructure West is currently until January 2919. This year, 73O feet of main spillway leading to the radial gates will be patched, reinforced and left in, place. It will be removed and reconstructed with structural concrete in 2418. There are 42 days heft until November 1: * Placement of reinforced, structural concrete is 30, percent complete, 8y November 1 there will be 1,220 feet of spillway chute with structural concrete — 87uJ feet on the upper chute of the spillway and 350 on the lower chute of the spillway. * The 1,050-foot middle section of the spillway chute, including filling lin the two scour holes„ is now 50 percent complete„ with approximately 179,000 cubic yards of roller compacted concrete placed. This year, there will be an estimated 350,0010 cubic yards of RCC placed. 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