Comerford
Key Takeaway
Comerford is classified as high hazard in New Hampshire. It was completed in 1930 and is 96 years old. Its primary use is hydroelectric. 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 | 170 ft (taller than 99.8% in NH) |
| Dam Length | 2,233 ft |
| Dam Type | Concrete |
| Max Storage | 32.3K acre-ft |
| Normal Storage | 32.3K acre-ft |
| Surface Area | 1,093 acres |
| Drainage Area | 1,635 sq mi |
| Max Discharge | 297,000 cfs |
| Year Completed | 1930 (96 years old) |
| NID ID | NH00165 |
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
Great River Hydro, LLC
Private
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High Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Comerford?
Comerford 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 Comerford?
Comerford is owned by Great River Hydro, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Comerford built?
Comerford was completed in 1930, making it 96 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 Comerford?
Comerford serves the following purposes: Hydroelectric, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Comerford?
Comerford has a dam height of 170 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 Comerford last inspected?
Comerford was last inspected on June 7, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.