Glen Anne
Key Takeaway
Glen Anne is classified as high hazard in California. It was completed in 1952 and is 74 years old. Its primary use is irrigation. 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 | 135 ft (taller than 87.9% in CA) |
| Dam Length | 240 ft |
| Dam Type | Earth |
| Max Storage | 630 acre-ft |
| Normal Storage | 470 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 950 cfs |
| Year Completed | 1952 (74 years old) |
| NID ID | CA10156 |
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
RECLAMATION
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Glen Anne?
Glen Anne 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 Glen Anne?
Glen Anne is owned by RECLAMATION (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Glen Anne built?
Glen Anne was completed in 1952, making it 74 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 Glen Anne?
Glen Anne serves the following purposes: Irrigation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Glen Anne?
Glen Anne has a dam height of 135 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 Glen Anne last inspected?
Glen Anne was last inspected on August 27, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.