Everett Dam
Key Takeaway
Everett Dam is classified as high hazard in New Hampshire. It was completed in 1961 and is 65 years old. Its primary use is flood risk reduction. 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 | 110 ft (taller than 99.2% in NH) |
| Dam Length | 2,000 ft |
| Dam Type | Rockfill |
| Max Storage | 131.0K acre-ft |
| Normal Storage | 1.0K acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 64 sq mi |
| Max Discharge | 28,500 cfs |
| Year Completed | 1961 (65 years old) |
| NID ID | NH00002 |
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
USACE - New England District
Federal Government
Nearby Dams
Everett Dam - Dike 1
Hillsborough, NH
High Hazard 50 ftEverett Dam - Dike 2
Hillsborough, NH
High Hazard 30 ftStark Pond Dam
Merrimack, NH
Low Hazard 12 ftFlintlock Estates Fire Pond Dam
Merrimack, NH
Low Hazard 8 ftDrew Lake South Weir
Hillsborough, NH
Low Hazard 12 ftBelanger Recreation Pond Dam
Merrimack, NH
Low Hazard 8 ftDaniels Lake Dam
Hillsborough, NH
Low Hazard 12 ftRiverdale Dam
Hillsborough, NH
Low Hazard 10 ftFrequently Asked Questions
What is the hazard classification of Everett Dam?
Everett Dam 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 Everett Dam?
Everett Dam is owned by USACE - New England District (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Everett Dam built?
Everett Dam was completed in 1961, making it 65 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 Everett Dam?
Everett Dam serves the following purposes: Flood Risk Reduction, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Everett Dam?
Everett Dam has a dam height of 110 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 Everett Dam last inspected?
Everett Dam was last inspected on November 8, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.