Otter Brook Dam
Key Takeaway
Otter Brook Dam is classified as low hazard in New Hampshire. It was completed in 1928 and is 98 years old. Its primary use is recreation.
Physical Details
| Dam Height | 10 ft (taller than 16% in NH) |
| Dam Length | 150 ft |
| Dam Type | Earth |
| Max Storage | 70 acre-ft |
| Normal Storage | 59 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 9 sq mi |
| Year Completed | 1928 (98 years old) |
| NID ID | NH00495 |
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
MR JOHN BEALE
Private
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Low Hazard 9 ftFrequently Asked Questions
What is the hazard classification of Otter Brook Dam?
Otter Brook 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 Otter Brook Dam?
Otter Brook Dam is owned by MR JOHN BEALE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Otter Brook Dam built?
Otter Brook Dam was completed in 1928, making it 98 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 Otter Brook Dam?
Otter Brook 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 Otter Brook Dam?
Otter Brook Dam has a dam height of 10 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 Otter Brook Dam last inspected?
Otter Brook Dam was last inspected on May 13, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.