Beech River Mill Dam
Key Takeaway
Beech River Mill Dam is classified as high hazard in New Hampshire. It was completed in 1851 and is 175 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 | 14 ft (taller than 42.1% in NH) |
| Dam Length | 61 ft |
| Dam Type | Concrete |
| Max Storage | 2 acre-ft |
| Normal Storage | 1 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 33 sq mi |
| Max Discharge | 700 cfs |
| Year Completed | 1851 (175 years old) |
| Year Modified | 1983 |
| NID ID | NH00819 |
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
DRO CORP DBA BEECH RIVER MILL
Private
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High Hazard 13 ftFrequently Asked Questions
What is the hazard classification of Beech River Mill Dam?
Beech River Mill 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 Beech River Mill Dam?
Beech River Mill Dam is owned by DRO CORP DBA BEECH RIVER MILL (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Beech River Mill Dam built?
Beech River Mill Dam was completed in 1851, making it 175 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 Beech River Mill Dam?
Beech River Mill Dam 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 Beech River Mill Dam?
Beech River Mill Dam has a dam height of 14 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 Beech River Mill Dam last inspected?
Beech River Mill Dam was last inspected on September 26, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.