Lyford Pond Dam
Key Takeaway
Lyford Pond Dam is classified as significant hazard in New Hampshire. It was completed in 1840 and is 186 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 15 ft (taller than 47.8% in NH) |
| Dam Length | 250 ft |
| Dam Type | Earth |
| Max Storage | 146 acre-ft |
| Normal Storage | 109 acre-ft |
| Surface Area | 24 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1 cfs |
| Year Completed | 1840 (186 years old) |
| NID ID | NH00331 |
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
CANTERBURY SHAKER VILLAGE INC
Private
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Low Hazard 11 ftFrequently Asked Questions
What is the hazard classification of Lyford Pond Dam?
Lyford 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 Lyford Pond Dam?
Lyford Pond Dam is owned by CANTERBURY SHAKER VILLAGE INC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lyford Pond Dam built?
Lyford Pond Dam was completed in 1840, making it 186 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 Lyford Pond Dam?
Lyford 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 Lyford Pond Dam?
Lyford Pond Dam has a dam height of 15 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 Lyford Pond Dam last inspected?
Lyford Pond Dam was last inspected on November 13, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.