Powwow Pond Dam
Key Takeaway
Powwow Pond Dam is classified as significant hazard in New Hampshire. It was completed in 1935 and is 91 years old. Its primary use is recreation. 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 | 250 ft |
| Dam Type | Earth |
| Max Storage | 3.8K acre-ft |
| Normal Storage | 1.5K acre-ft |
| Surface Area | 353 acres |
| Drainage Area | 29 sq mi |
| Year Completed | 1935 (91 years old) |
| Year Modified | 1993 |
| NID ID | NH00440 |
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
NH DES WATER DIVISION
State Government
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Significant Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Powwow Pond Dam?
Powwow Pond Dam 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 Powwow Pond Dam?
Powwow Pond Dam is owned by NH DES WATER DIVISION (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Powwow Pond Dam built?
Powwow Pond Dam was completed in 1935, making it 91 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 Powwow Pond Dam?
Powwow 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 Powwow Pond Dam?
Powwow 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 Powwow Pond Dam last inspected?
Powwow Pond Dam was last inspected on September 26, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.