Penacook Upper Falls
Key Takeaway
Penacook Upper Falls is classified as low hazard in New Hampshire. It was completed in 1987 and is 39 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 23 ft (taller than 78.4% in NH) |
| Dam Length | 243 ft |
| Dam Type | Concrete |
| Max Storage | 71 acre-ft |
| Normal Storage | 71 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 766 sq mi |
| Max Discharge | 35,000 cfs |
| Year Completed | 1987 (39 years old) |
| NID ID | NH00352 |
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
Briar Hydro Associates
Private
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Low Hazard 13 ftFrequently Asked Questions
What is the hazard classification of Penacook Upper Falls?
Penacook Upper Falls 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 Penacook Upper Falls?
Penacook Upper Falls is owned by Briar Hydro Associates (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Penacook Upper Falls built?
Penacook Upper Falls was completed in 1987, making it 39 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 Penacook Upper Falls?
Penacook Upper Falls serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Penacook Upper Falls?
Penacook Upper Falls has a dam height of 23 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 Penacook Upper Falls last inspected?
Penacook Upper Falls was last inspected on June 5, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.