Lake Anna Dam and Reservoir
Key Takeaway
Lake Anna Dam and Reservoir is classified as high hazard in Virginia. It was completed in 1972 and is 54 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 | 90 ft (taller than 98.3% in VA) |
| Dam Length | 5,150 ft |
| Dam Type | Earth |
| Max Storage | 487.0K acre-ft |
| Normal Storage | 305.0K acre-ft |
| Surface Area | 13,000 acres |
| Drainage Area | 343 sq mi |
| Max Discharge | 142,000 cfs |
| Year Completed | 1972 (54 years old) |
| NID ID | VA177002 |
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
Not Listed
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Unknown 15 ftFrequently Asked Questions
What is the hazard classification of Lake Anna Dam and Reservoir?
Lake Anna Dam and 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 Lake Anna Dam and Reservoir?
Lake Anna Dam and Reservoir is owned by information not available (Not Listed). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Anna Dam and Reservoir built?
Lake Anna Dam and Reservoir was completed in 1972, making it 54 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 Lake Anna Dam and Reservoir?
Lake Anna Dam and Reservoir serves the following purposes: Hydroelectric, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Anna Dam and Reservoir?
Lake Anna Dam and Reservoir has a dam height of 90 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 Lake Anna Dam and Reservoir last inspected?
Lake Anna Dam and Reservoir was last inspected on April 19, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.