Cresta
Key Takeaway
Cresta is classified as significant hazard in California. It was completed in 1949 and is 77 years old. Its primary use is hydroelectric. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 113 ft (taller than 84.5% in CA) |
| Dam Length | 378 ft |
| Dam Type | Concrete |
| Max Storage | 4.1K acre-ft |
| Normal Storage | 2.0K acre-ft |
| Surface Area | 62 acres |
| Drainage Area | 1,880 sq mi |
| Max Discharge | 211,000 cfs |
| Year Completed | 1949 (77 years old) |
| NID ID | CA00329 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Pacific Gas and Electric Company
Private
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What is the hazard classification of Cresta?
Cresta is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Cresta?
Cresta is owned by Pacific Gas and Electric Company (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Cresta built?
Cresta was completed in 1949, making it 77 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Cresta?
Cresta serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Cresta?
Cresta has a dam height of 113 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Cresta last inspected?
Cresta was last inspected on September 14, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.