Brooklyn
Key Takeaway
Brooklyn is classified as significant hazard in New Hampshire. It was completed in 1919 and is 107 years old. Its primary use is hydroelectric. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 19 ft (taller than 68% in NH) |
| Dam Length | 275 ft |
| Max Storage | 240 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 26 acres |
| Drainage Area | 254 sq mi |
| Max Discharge | 12,500 cfs |
| Year Completed | 1919 (107 years old) |
| NID ID | NH00148 |
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
5440 Hydro Inc.
Private
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Low Hazard 11 ftFrequently Asked Questions
What is the hazard classification of Brooklyn?
Brooklyn 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 Brooklyn?
Brooklyn is owned by 5440 Hydro Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Brooklyn built?
Brooklyn was completed in 1919, making it 107 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 Brooklyn?
Brooklyn 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 Brooklyn?
Brooklyn has a dam height of 19 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 Brooklyn last inspected?
Brooklyn was last inspected on July 13, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.