Middle Branch Dam
Key Takeaway
Middle Branch Dam is classified as high hazard in New York. It was completed in 1878 and is 148 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 | 95 ft (taller than 98% in NY) |
| Dam Length | 615 ft |
| Dam Type | Earth |
| Max Storage | 16.2K acre-ft |
| Normal Storage | 12.3K acre-ft |
| Surface Area | 428 acres |
| Drainage Area | 21 sq mi |
| Max Discharge | 8,910 cfs |
| Year Completed | 1878 (148 years old) |
| NID ID | NY00034 |
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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What is the hazard classification of Middle Branch Dam?
Middle 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 Middle Branch Dam?
Middle 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 Middle Branch Dam built?
Middle Branch Dam was completed in 1878, making it 148 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 Middle Branch Dam?
Middle 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 Middle Branch Dam?
Middle Branch Dam has a dam height of 95 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 Middle Branch Dam last inspected?
Middle Branch Dam was last inspected on March 12, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.