Merrimack River Right Bank Fdr
Key Takeaway
Merrimack River Right Bank Fdr is classified as high hazard in New Hampshire. It was completed in 1949 and is 77 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 | 15 ft (taller than 47.8% in NH) |
| Dam Length | 3,025 ft |
| Dam Type | Earth |
| Max Storage | 0 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 4,000 sq mi |
| Year Completed | 1949 (77 years old) |
| NID ID | NH03813 |
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
CITY OF NASHUA
Local Government
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Low Hazard 16 ftMine Falls
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Low Hazard 16 ftFrequently Asked Questions
What is the hazard classification of Merrimack River Right Bank Fdr?
Merrimack River Right Bank Fdr 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 Merrimack River Right Bank Fdr?
Merrimack River Right Bank Fdr is owned by CITY OF NASHUA (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Merrimack River Right Bank Fdr built?
Merrimack River Right Bank Fdr was completed in 1949, making it 77 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 Merrimack River Right Bank Fdr?
Merrimack River Right Bank Fdr serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Merrimack River Right Bank Fdr?
Merrimack River Right Bank Fdr 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 Merrimack River Right Bank Fdr last inspected?
Merrimack River Right Bank Fdr was last inspected on April 14, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.