Stevenson
Key Takeaway
Stevenson is classified as high hazard in Connecticut. It was completed in 1919 and is 107 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 | 103 ft (taller than 98.9% in CT) |
| Dam Length | 1,250 ft |
| Dam Type | Concrete |
| Max Storage | 26.5K acre-ft |
| Normal Storage | 23.5K acre-ft |
| Surface Area | 1,032 acres |
| Drainage Area | 1,542 sq mi |
| Max Discharge | 213,000 cfs |
| Year Completed | 1919 (107 years old) |
| NID ID | CT00023 |
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
FirstLight Power Services LLC
Public Utility
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Significant Hazard 10 ftFrequently Asked Questions
What is the hazard classification of Stevenson?
Stevenson 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 Stevenson?
Stevenson is owned by FirstLight Power Services LLC (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Stevenson built?
Stevenson was completed in 1919, making it 107 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 Stevenson?
Stevenson 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 Stevenson?
Stevenson has a dam height of 103 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 Stevenson last inspected?
Stevenson was last inspected on July 27, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.