West Branch Dam
Key Takeaway
West Branch Dam is classified as high hazard in New York. It was completed in 1895 and is 131 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 | 85 ft (taller than 97.6% in NY) |
| Dam Length | 1,795 ft |
| Dam Type | Earth |
| Max Storage | 42.3K acre-ft |
| Normal Storage | 30.9K acre-ft |
| Surface Area | 1,083 acres |
| Drainage Area | 43 sq mi |
| Max Discharge | 36,000 cfs |
| Year Completed | 1895 (131 years old) |
| NID ID | NY00029 |
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
NYCDEP DAMS EAST OF THE HUDSON RIVER
Local Government
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High Hazard 78 ftFrequently Asked Questions
What is the hazard classification of West Branch Dam?
West Branch 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 West Branch Dam?
West Branch Dam is owned by NYCDEP DAMS EAST OF THE HUDSON RIVER (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was West Branch Dam built?
West Branch Dam was completed in 1895, making it 131 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 West Branch Dam?
West Branch Dam 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 West Branch Dam?
West Branch Dam has a dam height of 85 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 West Branch Dam last inspected?
West Branch Dam was last inspected on April 23, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.