Manhan River Dam
Key Takeaway
Manhan River Dam is classified as significant hazard in Massachusetts. It was completed in 1998 and is 28 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 16 ft (taller than 56.3% in MA) |
| Dam Length | 115 ft |
| Dam Type | Concrete |
| Max Storage | 150 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 69 sq mi |
| Year Completed | 1998 (28 years old) |
| NID ID | MA00757 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
CITY OF EASTHAMPTON, DEPARTMENT OF PUBLIC WORKS
Local Government
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Significant Hazard 13 ftFrequently Asked Questions
What is the hazard classification of Manhan River Dam?
Manhan River Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Manhan River Dam?
Manhan River Dam is owned by CITY OF EASTHAMPTON, DEPARTMENT OF PUBLIC WORKS (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Manhan River Dam built?
Manhan River Dam was completed in 1998, making it 28 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 Manhan River Dam?
Manhan River Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Manhan River Dam?
Manhan River Dam has a dam height of 16 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 Manhan River Dam last inspected?
Manhan River Dam was last inspected on April 21, 2014. Inspection dates indicate when a formal review occurred, not the results of that inspection.