Conway Lake Dam
Key Takeaway
Conway Lake Dam is classified as significant hazard in New Hampshire. It was completed in 1763 and is 263 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 17 ft (taller than 59.6% in NH) |
| Dam Length | 200 ft |
| Dam Type | Earth |
| Max Storage | 14.8K acre-ft |
| Normal Storage | 7.3K acre-ft |
| Surface Area | 1,321 acres |
| Drainage Area | 22 sq mi |
| Max Discharge | 1,253 cfs |
| Year Completed | 1763 (263 years old) |
| NID ID | NH00318 |
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
TOWN OF CONWAY
Local Government
Nearby Dams
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Low Hazard 15 ftFryeburg
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Low Hazard 10 ftPea Porridge Pond Middle Little Dam
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Significant Hazard 17 ftClay's Pond
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Low Hazard 8 ftUpper Kimball Pond Dam
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High Hazard 10 ftPurity Lake Dam
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High Hazard 13 ftFrequently Asked Questions
What is the hazard classification of Conway Lake Dam?
Conway Lake 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 Conway Lake Dam?
Conway Lake Dam is owned by TOWN OF CONWAY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Conway Lake Dam built?
Conway Lake Dam was completed in 1763, making it 263 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 Conway Lake Dam?
Conway Lake 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 Conway Lake Dam?
Conway Lake Dam has a dam height of 17 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 Conway Lake Dam last inspected?
Conway Lake Dam was last inspected on June 25, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.