Normanskill
Key Takeaway
Normanskill is classified as high hazard in New York. It was completed in 1916 and is 110 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 | 39 ft (taller than 87.6% in NY) |
| Dam Length | 380 ft |
| Dam Type | Buttress |
| Max Storage | 5.0K acre-ft |
| Normal Storage | 5.0K acre-ft |
| Surface Area | 430 acres |
| Drainage Area | 113 sq mi |
| Max Discharge | 23,900 cfs |
| Year Completed | 1916 (110 years old) |
| NID ID | NY00088 |
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
City of Watervliet, NY
Local Government
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Low Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Normanskill?
Normanskill 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 Normanskill?
Normanskill is owned by City of Watervliet, NY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Normanskill built?
Normanskill was completed in 1916, making it 110 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 Normanskill?
Normanskill serves the following purposes: Hydroelectric, Fire Protection, Stock, Or Small Fish Pond, Fish And Wildlife Pond, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Normanskill?
Normanskill has a dam height of 39 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 Normanskill last inspected?
Normanskill was last inspected on June 13, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.