Wilson Reservoir
Key Takeaway
Wilson Reservoir is classified as high hazard in Rhode Island. It was completed in 1866 and is 160 years old. Its primary use is recreation. 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 | 21 ft (taller than 84.7% in RI) |
| Dam Length | 480 ft |
| Dam Type | Gravity |
| Max Storage | 840 acre-ft |
| Normal Storage | 590 acre-ft |
| Surface Area | 114 acres |
| Drainage Area | 13 sq mi |
| Max Discharge | 395 cfs |
| Year Completed | 1866 (160 years old) |
| NID ID | RI00302 |
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
WILSON RESERVOIR ASSOCIATION
Private
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High Hazard 10 ftFrequently Asked Questions
What is the hazard classification of Wilson Reservoir?
Wilson Reservoir 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 Wilson Reservoir?
Wilson Reservoir is owned by WILSON RESERVOIR ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Wilson Reservoir built?
Wilson Reservoir was completed in 1866, making it 160 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 Wilson Reservoir?
Wilson Reservoir serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Wilson Reservoir?
Wilson Reservoir has a dam height of 21 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 Wilson Reservoir last inspected?
Wilson Reservoir was last inspected on October 30, 2013. Inspection dates indicate when a formal review occurred, not the results of that inspection.