Amoskeag
Key Takeaway
Amoskeag is classified as high hazard in New Hampshire. It was completed in 1921 and is 105 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 | 29 ft (taller than 86% in NH) |
| Dam Length | 1,075 ft |
| Dam Type | Concrete |
| Max Storage | 4.3K acre-ft |
| Normal Storage | 4.3K acre-ft |
| Surface Area | 478 acres |
| Drainage Area | 2,854 sq mi |
| Max Discharge | 87,000 cfs |
| Year Completed | 1921 (105 years old) |
| NID ID | NH00102 |
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
Not Listed
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What is the hazard classification of Amoskeag?
Amoskeag 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 Amoskeag?
Amoskeag is owned by information not available (Not Listed). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Amoskeag built?
Amoskeag was completed in 1921, making it 105 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 Amoskeag?
Amoskeag serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Amoskeag?
Amoskeag has a dam height of 29 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 Amoskeag last inspected?
Amoskeag was last inspected on September 7, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.