OROVILLE DAM

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April 26, 2025


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Oroville Dam, located in Butte County, California, is a state-regulated structure with a primary purpose of flood risk reduction. Completed in 1968, this earth dam stands at a height of 770 feet and has a storage capacity of 3,540,000 acre-feet. Situated on the Feather River, Oroville Dam serves multiple purposes including hydroelectric power generation, irrigation, recreation, and water supply for the region.

Managed by the California Department of Water Resources (DWR), Oroville Dam features a controlled spillway with a width of 140 feet and eight Tainter radial gates for release of excess water during high flow events. The dam has a very high hazard potential rating due to its location and the potential impacts of a dam failure. Regular inspections by both state and federal agencies, including the Federal Energy Regulatory Commission (FERC), ensure the safety and integrity of the structure.

With its critical role in managing water resources and mitigating flood risks in the region, Oroville Dam is an essential piece of infrastructure that requires ongoing monitoring and maintenance to safeguard surrounding communities. As a key component of California's water management system, Oroville Dam is a testament to the importance of effective dam regulation and emergency preparedness in the face of changing climate conditions and increasing water demands.

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Dam_Height 770
Hydraulic_Height 748
Drainage_Area 3611
Year_Completed 1968
Nid_Storage 3540000
Hazard_Potential High
Structural_Height 770
River_Or_Stream Feather River
Foundations Rock
Surface_Area 15800
Outlet_Gates Tainter (radial) - 8
Dam_Length 6920
Primary_Dam_Type Earth
Nid_Height 770
       
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