Pierce Pond Dam
Key Takeaway
Pierce Pond Dam is classified as high hazard in New Hampshire. It was completed in 1700 and is 326 years old. Its primary use is recreation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 8 ft (taller than 5% in NH) |
| Dam Length | 100 ft |
| Dam Type | Earth |
| Max Storage | 149 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 54 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 350 cfs |
| Year Completed | 1700 (326 years old) |
| NID ID | NH00921 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
TOWN OF BROOKLINE
Local Government
Nearby Dams
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Significant Hazard 11 ftMason Road Dam
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Low Hazard 11 ftBixby Reservoir Dam
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Low Hazard 7 ftSilver Lake Dam
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Low Hazard 8 ftCompressor Pond Dam
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Low Hazard 28 ftFrequently Asked Questions
What is the hazard classification of Pierce Pond Dam?
Pierce Pond Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Pierce Pond Dam?
Pierce Pond Dam is owned by TOWN OF BROOKLINE (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Pierce Pond Dam built?
Pierce Pond Dam was completed in 1700, making it 326 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 Pierce Pond Dam?
Pierce 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 Pierce Pond Dam?
Pierce Pond Dam has a dam height of 8 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 Pierce Pond Dam last inspected?
Pierce Pond Dam was last inspected on April 13, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.