May Pond Dam
Key Takeaway
May Pond Dam is classified as significant hazard in New Hampshire. It was completed in 1830 and is 196 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 14 ft (taller than 42.1% in NH) |
| Dam Length | 215 ft |
| Dam Type | Earth |
| Max Storage | 950 acre-ft |
| Normal Storage | 465 acre-ft |
| Surface Area | 158 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 1,071 cfs |
| Year Completed | 1830 (196 years old) |
| Year Modified | 1983 |
| NID ID | NH00233 |
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
NH DNCR
State Government
Nearby Dams
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Low Hazard 10 ftGunnison Lake Site D2 Dam
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High Hazard 62 ftSand Pond Dam
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Low Hazard 12 ftMillen Lake Dam
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Significant Hazard 23 ftIsland Pond Dam
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Low Hazard 13 ftFrequently Asked Questions
What is the hazard classification of May Pond Dam?
May Pond Dam 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 May Pond Dam?
May Pond Dam is owned by NH DNCR (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was May Pond Dam built?
May Pond Dam was completed in 1830, making it 196 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 May Pond Dam?
May 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 May Pond Dam?
May Pond Dam has a dam height of 14 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 May Pond Dam last inspected?
May Pond Dam was last inspected on April 30, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.