Los Angeles Reservoir
Key Takeaway
Los Angeles Reservoir is classified as high hazard in California. It was completed in 1977 and is 49 years old. Its primary use is other. 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 | 130 ft (taller than 87.1% in CA) |
| Dam Length | 3,415 ft |
| Dam Type | Earth |
| Max Storage | 10.0K acre-ft |
| Surface Area | 175 acres |
| Drainage Area | 9 sq mi |
| Year Completed | 1977 (49 years old) |
| NID ID | CA01081 |
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
City of Los Angeles Department of Water And Power
Local Government
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High Hazard 50 ftFrequently Asked Questions
What is the hazard classification of Los Angeles Reservoir?
Los Angeles Reservoir 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 Los Angeles Reservoir?
Los Angeles Reservoir is owned by City of Los Angeles Department of Water And Power (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Los Angeles Reservoir built?
Los Angeles Reservoir was completed in 1977, making it 49 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 Los Angeles Reservoir?
Los Angeles Reservoir serves the following purposes: Other, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Los Angeles Reservoir?
Los Angeles Reservoir has a dam height of 130 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 Los Angeles Reservoir last inspected?
Los Angeles Reservoir was last inspected on August 31, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.