Massena Diversion Dam
Key Takeaway
Massena Diversion Dam is classified as low hazard in New York. It was completed in 1912 and is 114 years old. Its primary use is other.
Physical Details
| Dam Height | 35 ft (taller than 83.6% in NY) |
| Dam Length | 550 ft |
| Dam Type | Concrete |
| Max Storage | 1.1K acre-ft |
| Normal Storage | 1.1K acre-ft |
| Surface Area | 96 acres |
| Year Completed | 1912 (114 years old) |
| NID ID | NY01240 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
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
Massena Village Dam
St. Lawrence, NY
Low Hazard 8 ftMassena Intake
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High Hazard 115 ftLong Sault
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High Hazard 104 ftRaymondville
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Low Hazard 17 ftWilson Road Dike
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Low Hazard 15 ftNorfolk Dam
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High Hazard 29 ftEast Norfolk
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High Hazard 16 ftFrequently Asked Questions
What is the hazard classification of Massena Diversion Dam?
Massena Diversion Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Massena Diversion Dam?
Massena Diversion Dam 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 Diversion Dam built?
Massena Diversion Dam was completed in 1912, making it 114 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 Diversion Dam?
Massena Diversion Dam serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Massena Diversion Dam?
Massena Diversion Dam has a dam height of 35 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 Diversion Dam last inspected?
Massena Diversion Dam was last inspected on August 15, 2011. Inspection dates indicate when a formal review occurred, not the results of that inspection.