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Oroville spillway recovery Oroville Spillways Work Continues, Heat-related Safety Measures in Place
SACRAMENTO – The following is a regular update from the California Department of Water Resources (DWR) regarding Lake Oroville Spillways Emergency Recovery Project activities.

Continued Recovery Work on the Main and Emergency Spillways
• Construction continues at the site by DWR’s prime contractor, Kiewit Infrastructure West.
• Demolition continues on the bottom 600 feet of the upper chute of the main spillway.
• The final 1,000 feet of main spillway leading to the radial gates will be patched and reinforced, and will remain intact this year. This 1,000-foot section will be replaced and reconstructed in 2018. (06/21/2017)
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map Blue-Green Algal Bloom Found in San Luis Reservoir; Public Urged To Avoid Water Contact
Sacramento – The Department of Water Resources (DWR) is urging boaters and recreational users to avoid direct contact with or use of waters containing blue-green algae (cyanobacteria) in San Luis Reservoir in Merced County.
The recommendation is based on the potential health risks from the algae. Water sampled on June 19 at the Basalt Boat Launch contained approximately 10 micrograms per liter of microcystins, a level that prompts warning signs to be posted at the reservoir. (06/20/2017)
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pressrelease DWR Releases Final Environmental Documents for New Delta Research Station
SACRAMENTO – A significant milestone has been reached in the effort to build a state of the art scientific field station in the Sacramento-San Joaquin Delta. The California Department of Water Resources (DWR) in May finalized the environmental documents for construction of a research hub on the former Rio Vista Army Base. (06/13/2017)
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Oroville spillway repair Lake Oroville Spillways Work Continues, Updates on Related Activities
SACRAMENTO – The following is a regular update from the Department of Water Resources (DWR) on Lake Oroville Emergency Recovery project activities.
Continued Recovery Work
• Construction continues at the site by DWR’s prime contractor Kiewit Infrastructure West Co. In the past two weeks, Kiewit has focused on removing the lower 2,000 feet, or lower chute, of the gated flood control spillway (also known as the main spillway.) Kiewit is using excavators and controlled blasting to demolish the concrete slabs and walls of the lower chute. (06/07/2017)
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CAST DWR Announces ‘Catch A Special Thrill’ for Kids Event at Lake Oroville SRA
SACRAMENTO – A day of outdoor recreation and fishing for disabled children will be held at Lake Oroville State Recreation Area at the Bidwell Canyon Boat Launch in Butte County on Saturday, June 10, from 8 a.m. to 2 p.m. Event sponsors are the Department of Water Resources (DWR), Department of Parks and Recreation (DPR), Department of Forestry and Fire Protection (Cal-Fire), Department of Fish and Wildlife (DFW), and the “Catch A Special Thrill” for Kids Foundation. (06/01/2017)
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pressrelease Test of Lake Oroville Emergency Siren
The California Department of Water Resources (DWR) today notified community members in the Oroville area of a new siren that was recently installed near the gates of the Lake Oroville flood control spillway (also known as the main spillway).
DWR will operate an audible test of the emergency siren this Friday (June 2) at noon. Although loud, this is only a test and is nothing to worry about. The test will last less than one minute. (06/01/2017)
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Oroville spillway incident National Dam Organizations Comment on Current State of Lake Oroville Spillway Incident Investigation
Two internationally recognized dam engineering and dam safety organizations released a statement Friday about the Lake Oroville spillway incident investigation. The Association of State Dam Safety Officials (ASDSO) and the United States Society on Dams (USSD) selected the independent Forensic Team members, who are charged with finding the cause or causes of the Lake Oroville spillway incident. The statement describes the Forensic Team's process, discusses its preliminary findings and explains individual roles, including two members “selected for their expertise in how human and organizational factors may contribute to dam safety incidents.” (05/30/2017)
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progress at Oroville spillway DWR to Provide Updates on Construction on Lake Oroville Spillways
SACRAMENTO - The California Department of Water Resources (DWR) will host a moderated conference call for media on Wednesday, May 24, to provide updates on the construction activities at the Lake Oroville spillways. DWR Moderated Media Conference Call When: Wednesday, May 24, at 10 a.m. Where: 1-866-719-0110 Conference ID: 1799450 What: Updates on construction at the Lake Oroville spillways Who: Members of DWR, the California Natural Resources Agency and Kiewit Construction How: This moderated conference call is for members of the media only (05/23/2017)
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Oroville Reduction DWR To Continue Outflow Reduction - Feb. 17 PM
Oroville, Ca.-At 1:00 PM this afternoon, the Department of Water Resources will once more begin reducing outflow from the Oroville Dam flood control spillway incrementally from 80,000 cfs to 70,000 cfs to support the removal of debris from the diversion pool located near the spillway. (02/17/2017)
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