Kelly Lake
Key Takeaway
Kelly Lake is classified as high hazard in California. It was completed in 1928 and is 98 years old. Its primary use is hydroelectric. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 23 ft (taller than 21.2% in CA) |
| Dam Length | 448 ft |
| Dam Type | Earth |
| Max Storage | 336 acre-ft |
| Normal Storage | 360 acre-ft |
| Surface Area | 26 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 490 cfs |
| Year Completed | 1928 (98 years old) |
| NID ID | CA00353 |
Safety Information
Loss of human life is likely if the dam fails.
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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Low Hazard 23 ftFrequently Asked Questions
What is the hazard classification of Kelly Lake?
Kelly Lake is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Kelly Lake?
Kelly Lake is owned by Pacific Gas and Electric Company (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Kelly Lake built?
Kelly Lake was completed in 1928, making it 98 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 Kelly Lake?
Kelly Lake 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 Kelly Lake?
Kelly Lake has a dam height of 23 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 Kelly Lake last inspected?
Kelly Lake was last inspected on June 6, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.