Assabet River Dam
Key Takeaway
Assabet River Dam is classified as significant hazard in Massachusetts. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 11 ft (taller than 25.5% in MA) |
| Dam Length | 170 ft |
| Dam Type | Concrete |
| Max Storage | 20 acre-ft |
| Normal Storage | 15 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 30 sq mi |
| NID ID | MA00995 |
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
MONTROSE NORTHBOROUGH, LLC
Private
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Low Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Assabet River Dam?
Assabet 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 Assabet River Dam?
Assabet River Dam is owned by MONTROSE NORTHBOROUGH, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Assabet River Dam?
Assabet River Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Assabet River Dam?
Assabet River Dam has a dam height of 11 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 Assabet River Dam last inspected?
Assabet River Dam was last inspected on November 19, 2014. Inspection dates indicate when a formal review occurred, not the results of that inspection.