Green River Dam
Key Takeaway
Green River Dam is classified as high hazard in Vermont. It was completed in 1947 and is 79 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 | 105 ft (taller than 96.7% in VT) |
| Dam Length | 360 ft |
| Dam Type | Arch |
| Max Storage | 16.9K acre-ft |
| Normal Storage | 16.9K acre-ft |
| Surface Area | 625 acres |
| Drainage Area | 15 sq mi |
| Max Discharge | 7,143 cfs |
| Year Completed | 1947 (79 years old) |
| NID ID | VT00024 |
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
Village of Morrisville, VT
Local Government
Nearby Dams
Beaver Lake
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Significant Hazard 24 ftGreen River Reservoir Dike
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Low Hazard 8 ftWoodside
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Low Hazard 22 ftCadys Falls
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Low Hazard 27 ftMorrisville
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Low Hazard 29 ftWolcott Pond
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Low Hazard 9 ftFrequently Asked Questions
What is the hazard classification of Green River Dam?
Green River 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 Green River Dam?
Green River Dam is owned by Village of Morrisville, VT (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Green River Dam built?
Green River Dam was completed in 1947, making it 79 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 Green River Dam?
Green River Dam serves the following purposes: Hydroelectric, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Green River Dam?
Green River Dam has a dam height of 105 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 Green River Dam last inspected?
Green River Dam was last inspected on May 17, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.