East Sidney Dam
Key Takeaway
East Sidney Dam is classified as high hazard in New York. It was completed in 1950 and is 76 years old. Its primary use is flood risk reduction. 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 99.2% in NY) |
| Dam Length | 2,010 ft |
| Dam Type | Gravity |
| Max Storage | 58.4K acre-ft |
| Normal Storage | 2.8K acre-ft |
| Surface Area | 210 acres |
| Drainage Area | 102 sq mi |
| Max Discharge | 81,000 cfs |
| Year Completed | 1950 (76 years old) |
| NID ID | NY01211 |
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
USACE - Baltimore District
Federal Government
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Significant Hazard 77 ftFrequently Asked Questions
What is the hazard classification of East Sidney Dam?
East Sidney Dam 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 East Sidney Dam?
East Sidney Dam is owned by USACE - Baltimore District (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was East Sidney Dam built?
East Sidney Dam was completed in 1950, making it 76 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 East Sidney Dam?
East Sidney Dam serves the following purposes: Flood Risk Reduction, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is East Sidney Dam?
East Sidney Dam 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 East Sidney Dam last inspected?
East Sidney Dam was last inspected on July 14, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.