Greystone Reservoir
Key Takeaway
Greystone Reservoir is classified as high hazard in California. It was completed in 1970 and is 56 years old. Its primary use is water supply. 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 | 75 ft (taller than 74.5% in CA) |
| Dam Length | 1,140 ft |
| Dam Type | Other |
| Max Storage | 60 acre-ft |
| Surface Area | 2 acres |
| Year Completed | 1970 (56 years old) |
| NID ID | CA00893 |
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 Beverly Hills
Local Government
Nearby Dams
Lower Franklin
Los Angeles, CA
High Hazard 103 ftLower Franklin No. 2
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Low Hazard 49 ftUpper Franklin Dam
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Significant Hazard 40 ftStone Canyon
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High Hazard 188 ftUpper Stone Canyon
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Low Hazard 111 ftMulholland
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High Hazard 195 ftUpper Hollywood
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Low Hazard 87 ftSepulveda Dam
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High Hazard 57 ftFrequently Asked Questions
What is the hazard classification of Greystone Reservoir?
Greystone 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 Greystone Reservoir?
Greystone Reservoir is owned by City of Beverly Hills (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Greystone Reservoir built?
Greystone Reservoir was completed in 1970, making it 56 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 Greystone Reservoir?
Greystone Reservoir serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Greystone Reservoir?
Greystone Reservoir has a dam height of 75 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 Greystone Reservoir last inspected?
Greystone Reservoir was last inspected on June 2, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.