Uncanoonuc Lake Dike
Key Takeaway
Uncanoonuc Lake Dike is classified as high hazard in New Hampshire. It was completed in 1954 and is 72 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 | 15 ft (taller than 47.8% in NH) |
| Dam Length | 200 ft |
| Dam Type | Earth |
| Max Storage | 150 acre-ft |
| Normal Storage | 90 acre-ft |
| Surface Area | 24 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1954 (72 years old) |
| NID ID | NH00080 |
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
GOFFSTOWN VILLAGE PRECINCT
Local Government
Nearby Dams
Uncanoonuc Lake Dam
Hillsborough, NH
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Significant Hazard 20 ftRiverdale Dam
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Low Hazard 10 ftKelley'S Falls Dam
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High Hazard 31 ftKimball Pond Dam
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Low Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Uncanoonuc Lake Dike?
Uncanoonuc Lake Dike 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 Uncanoonuc Lake Dike?
Uncanoonuc Lake Dike is owned by GOFFSTOWN VILLAGE PRECINCT (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Uncanoonuc Lake Dike built?
Uncanoonuc Lake Dike was completed in 1954, making it 72 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 Uncanoonuc Lake Dike?
Uncanoonuc Lake Dike 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 Uncanoonuc Lake Dike?
Uncanoonuc Lake Dike 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 Uncanoonuc Lake Dike last inspected?
Uncanoonuc Lake Dike was last inspected on May 17, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.