Massena Intake
Key Takeaway
Massena Intake is classified as high hazard in New York. It was completed in 1958 and is 68 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 | 115 ft (taller than 99% in NY) |
| Dam Length | 721 ft |
| Dam Type | Concrete |
| Max Storage | 803.0K acre-ft |
| Normal Storage | 750.0K acre-ft |
| Surface Area | 37,500 acres |
| Drainage Area | 300,000 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1958 (68 years old) |
| NID ID | NY01437 |
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
New York Power Authority
State Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Massena Intake?
Massena Intake 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 Massena Intake?
Massena Intake is owned by New York Power Authority (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Massena Intake built?
Massena Intake was completed in 1958, making it 68 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 Massena Intake?
Massena Intake serves the following purposes: Hydroelectric, Navigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Massena Intake?
Massena Intake has a dam height of 115 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 Massena Intake last inspected?
Massena Intake was last inspected on August 2, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.