Spillway

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  • 1st system detecting fish rushing with water through spillway at federal dams

    1st system detecting fish rushing with water through spillway at federal dams

    When the bait fish are out, one will also see cormorants, coots, bufflehead, egrets, gulls and the occasional heron.

  • Launch Ramp at Oroville Spillway Open for Labor Day

    Launch Ramp at Oroville Spillway Open for Labor Day

    The Spillway Boat Ramp opened to the public on August 9 after two years of closure for the Oroville Dam Spillways Reconstruction Project.

  • Oroville Spillway Ramp to Reopen

    Oroville Spillway Ramp to Reopen

    The Spillway Boat Ramp and parking lots will be open to the public Friday through Sunday from 5 a.m. to 11 p.m.

  • Prepared to use the Oroville Spillway UPDATE

    Prepared to use the Oroville Spillway UPDATE

    Due to late precipitation and based on inflows, DWR has taken steps to prepare for potential use of the spillway.

  • Lake Oroville Operations and Main Spillway Update May 9

    Lake Oroville Operations and Main Spillway Update May 9

    Lake Level --> Oroville’s current reservoir elevation is 888 feet. Total releases into the Feather River have decreased to 7,500 cubic feet per second (cfs).

  • Preparing to use Oroville's Main Spillway

    Preparing to use Oroville's Main Spillway

    Due to storms expected in the Feather River basin, DWR is taking steps to prepare for use of the main spillway potentially as early as the first week of April.

  • First time in 20 years Lake Berryessa is 4' Over the Spillway! VIDEO

    First time in 20 years Lake Berryessa is 4' Over the Spillway! VIDEO

    Enjoy the 4K SIGHT and SOUND of literally millions of gallons of water, literally going down a drain.

  • Oroville Dam spillway reconstruction expected to end before rainy season

    Oroville Dam spillway reconstruction expected to end before rainy season

    The Department of Water Resources said it's on track to a have a fully functional primary spillway by its self-imposed Nov. 1 – just before the rainy season begins. The rebuilt spillway will be capable of handling water releases of 100,000 cubic feet per second. Additionally, crews working on the emergency spillway are focused on the reconstruction of a cut-off wall. That is scheduled to be finished by January.

  • Oroville Spillway Construction Tour 24 Aug. Part I

    Oroville Spillway Construction Tour 24 Aug. Part I

    Part I of over an hours worth of technical explanation of the construction to date up close and personal inside the new Main Spillway and Emergency Spillway at Oroville Dam.

  • Oroville Spillway Update August 22, 2017 | CDWR

    Oroville Spillway Update August 22, 2017 | CDWR

    Steel beams are installed for the upper spillway walls. Roller-compacted concrete (RCC) continues going in on the middle spillway. Crews prepare the area between the upper and lower chute for RCC by filling the crevasses with dental concrete. Rebar mats are set for structural concrete on the lower spillway.

  • NEW GOLD RUSH: Debris left behind by the damaged Oroville Spillway has triggered gold fever

    NEW GOLD RUSH: Debris left behind by the damaged Oroville Spillway has triggered gold fever

    Debris left behind by the damaged Oroville Spillway has triggered gold fever

  • Aerial Update Oroville Spillway

    Aerial Update Oroville Spillway

    Pumped concrete is being placed between the stay-in-place concrete forms, part of the new concrete foundation and drainage system for the Lake Oroville flood control spillway. Demolition and rock cleaning continue, as does work on the emergency spillway.

  • Oroville Spillway Dust Mitigation

    Oroville Spillway Dust Mitigation

    Because heavy equipment and controlled blasting at the Lake Oroville spillways cause dust plumes in the construction zone, DWR has measures in place to ensure we are in compliance with local and State air quality regulations. DWR is conducting continuous air quality monitoring, which includes dust monitors and asbestos sampling apparatus located at the perimeter of the construction site. Representative air quality testing is also done during the drilling process to place controlled explosives, and all test results from drilling to date have been negative for asbestos. In addition, none of the airborne asbestos monitoring equipment set up at perimeter locations at the construction site have detected levels that exceed established health-based threshold values. Crystalline silica may also be present in the concrete chute blasts, but it is not considered a hazard to the public. Any airborne concentration quickly dissipates to a safe level. Construction workers are not required to wear respirators because measured exposure levels to date have been well below the California Division of Occupational Safety and Health (Cal/OSHA) permissible exposure limit.

  • DWR is looking for 2 new folks to join the Oroville Spillway team

    DWR is looking for 2 new folks to join the Oroville Spillway team

    DWR is looking for 2 new folks to join our #OrovilleSpillway team. If you enjoy a fast paced environment, have a public relations/community outreach background and want to be part of a crucial project for the State, apply for a Public Information Officer position

  • Oroville Spillway Re-Opening DWR Narrated Footage | April 15

    Oroville Spillway Re-Opening DWR Narrated Footage | April 15

    Oroville 15 April Narrated Spillway Re-Opening DWR Footage

  • Oroville Spillway Update | April 13

    Oroville Spillway Update | April 13

    New Images - Spillway Reopening - Press Briefing - Lake Oroville Dam Update 4-13-17

  • Oroville damage when the spillway flow was stopped

    Oroville damage when the spillway flow was stopped

    With Lake Oroville Spillway flows slowing to zero today, we catch a glimpse of the power of water, and the work that lies ahead.

  • Oroville Spillway Damage Prompts Revision to the California B.A.S.S. Nation 2017 schedule

    Oroville Spillway Damage Prompts Revision to the California B.A.S.S. Nation 2017 schedule

    Because of damage to the dam at Oroville Lake, the California B.A.S.S. Nation is postponing the Oroville tournament and moving up the New Melones event.

  • Oroville Spillway Expected to Fail | IMMEDIATE EVACUATIONS

    Oroville Spillway Expected to Fail | IMMEDIATE EVACUATIONS

    Failure of the emergency spillway structure will result in an uncontrolled release of flood waters from Lake Oroville.

  • Lake Berryessa Water Reaches Glory Hole spillway at Monticello Dam

    Lake Berryessa Water Reaches Glory Hole spillway at Monticello Dam

    As of this afternoon the lake is technically and officially only 1.0 feet below the spillway, so get ready for summer ladies and gentleman because LAKE BERRYESSA IS OFFICIALLY FULL!!