Tannery Pond Dam
Key Takeaway
Tannery Pond Dam is classified as low hazard in New Hampshire. It was completed in 1850 and is 176 years old. Its primary use is recreation.
Physical Details
| Dam Height | 12 ft (taller than 28.2% in NH) |
| Dam Length | 160 ft |
| Dam Type | Concrete |
| Max Storage | 96 acre-ft |
| Normal Storage | 48 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 15 sq mi |
| Max Discharge | 1,100 cfs |
| Year Completed | 1850 (176 years old) |
| NID ID | NH00257 |
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
TOWN OF WILMOT
Local Government
Nearby Dams
Chase Pond Dam
Merrimack, NH
Significant Hazard 17 ftCascade Brook Dam
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Low Hazard 11 ftMorey Pond Dam
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Low Hazard 12 ftPleasant Lake Dam
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High Hazard 13 ftCole Pond Dam
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Low Hazard 10 ftChadwick Meadows Wildlife Ref Dam
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Significant Hazard 47 ftBradley Lake Dam
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Significant Hazard 19 ftRagged Mountain Snow Pond Dam
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Low Hazard 49 ftFrequently Asked Questions
What is the hazard classification of Tannery Pond Dam?
Tannery Pond Dam 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 Tannery Pond Dam?
Tannery Pond Dam is owned by TOWN OF WILMOT (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Tannery Pond Dam built?
Tannery Pond Dam was completed in 1850, making it 176 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 Tannery Pond Dam?
Tannery Pond 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 Tannery Pond Dam?
Tannery Pond Dam 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 Tannery Pond Dam last inspected?
Tannery Pond Dam was last inspected on June 7, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.