New Wilton Reservoir Dam
Key Takeaway
New Wilton Reservoir Dam is classified as high hazard in New Hampshire. It was completed in 1931 and is 95 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 | 24 ft (taller than 79% in NH) |
| Dam Length | 123 ft |
| Dam Type | Concrete |
| Max Storage | 335 acre-ft |
| Normal Storage | 240 acre-ft |
| Surface Area | 22 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 127 cfs |
| Year Completed | 1931 (95 years old) |
| NID ID | NH00261 |
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
TOWN OF WILTON
Local Government
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High Hazard 25 ftFrequently Asked Questions
What is the hazard classification of New Wilton Reservoir Dam?
New Wilton Reservoir 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 New Wilton Reservoir Dam?
New Wilton Reservoir Dam is owned by TOWN OF WILTON (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was New Wilton Reservoir Dam built?
New Wilton Reservoir Dam was completed in 1931, making it 95 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 New Wilton Reservoir Dam?
New Wilton Reservoir Dam 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 New Wilton Reservoir Dam?
New Wilton Reservoir Dam has a dam height of 24 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 New Wilton Reservoir Dam last inspected?
New Wilton Reservoir Dam was last inspected on October 24, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.