Cavendish
Key Takeaway
Cavendish is classified as low hazard in Vermont. It was completed in 1907 and is 119 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 25 ft (taller than 66% in VT) |
| Dam Length | 147 ft |
| Dam Type | Concrete |
| Max Storage | 23 acre-ft |
| Normal Storage | 23 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 83 sq mi |
| Max Discharge | 18,400 cfs |
| Year Completed | 1907 (119 years old) |
| NID ID | VT00037 |
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
Green Mountain Power Corporation
Public Utility
Nearby Dams
Knapp Brook Site No. 2
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Significant Hazard 22 ftKnapp Brook Site No. 1
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Significant Hazard 23 ftNorth Springfield Dam
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High Hazard 118 ftNorth Branch Dam
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High Hazard 75 ftWindsor Minerals Pond #10
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Low Hazard 33 ftWindsor Minerals Pond #9
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Low Hazard 40 ftUpper Chester Reservoir
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Significant Hazard 20 ftOkemo Snow Pond
Windsor, VT
High Hazard 80 ftFrequently Asked Questions
What is the hazard classification of Cavendish?
Cavendish 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 Cavendish?
Cavendish is owned by Green Mountain Power Corporation (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Cavendish built?
Cavendish was completed in 1907, making it 119 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 Cavendish?
Cavendish serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Cavendish?
Cavendish has a dam height of 25 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 Cavendish last inspected?
Cavendish was last inspected on September 12, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.