Salmon Brook I Dam
Key Takeaway
Salmon Brook I Dam is classified as low hazard in New Hampshire. It was completed in 1887 and is 139 years old. Its primary use is recreation.
Physical Details
| Dam Height | 17 ft (taller than 59.6% in NH) |
| Dam Length | 75 ft |
| Dam Type | Concrete |
| Max Storage | 179 acre-ft |
| Normal Storage | 79 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 21 sq mi |
| Max Discharge | 825 cfs |
| Year Completed | 1887 (139 years old) |
| NID ID | NH00332 |
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
PENNICHUCK WATER WORKS INC
Private
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High Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Salmon Brook I Dam?
Salmon Brook I 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 Salmon Brook I Dam?
Salmon Brook I Dam is owned by PENNICHUCK WATER WORKS INC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Salmon Brook I Dam built?
Salmon Brook I Dam was completed in 1887, making it 139 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 Salmon Brook I Dam?
Salmon Brook I 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 Salmon Brook I Dam?
Salmon Brook I Dam has a dam height of 17 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 Salmon Brook I Dam last inspected?
Salmon Brook I Dam was last inspected on November 14, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.