Woodsville
Key Takeaway
Woodsville is classified as significant hazard in New Hampshire. It was completed in 1827 and is 199 years old. Its primary use is hydroelectric. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 12 ft (taller than 28.2% in NH) |
| Dam Length | 300 ft |
| Dam Type | Concrete |
| Max Storage | 124 acre-ft |
| Normal Storage | 124 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 420 sq mi |
| Max Discharge | 18,500 cfs |
| Year Completed | 1827 (199 years old) |
| NID ID | NH00069 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Town of Woodsville, NH
Local Government
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Low Hazard 32 ftFrequently Asked Questions
What is the hazard classification of Woodsville?
Woodsville is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Woodsville?
Woodsville is owned by Town of Woodsville, NH (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Woodsville built?
Woodsville was completed in 1827, making it 199 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 Woodsville?
Woodsville serves the following purposes: Hydroelectric, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Woodsville?
Woodsville has a dam height of 12 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 Woodsville last inspected?
Woodsville was last inspected on August 18, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.