Hawley Reservoir Dam
Key Takeaway
Hawley Reservoir Dam is classified as significant hazard in Massachusetts. It was completed in 1890 and is 136 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 17 ft (taller than 60.3% in MA) |
| Dam Length | 160 ft |
| Dam Type | Concrete |
| Max Storage | 100 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 2 sq mi |
| Year Completed | 1890 (136 years old) |
| NID ID | MA00065 |
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
TOWN OF AMHERST, DEPARTMENT OF PUBLIC WORKS
Local Government
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Significant Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Hawley Reservoir Dam?
Hawley Reservoir 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 Hawley Reservoir Dam?
Hawley Reservoir Dam is owned by TOWN OF AMHERST, DEPARTMENT OF PUBLIC WORKS (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hawley Reservoir Dam built?
Hawley Reservoir Dam was completed in 1890, making it 136 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 Hawley Reservoir Dam?
Hawley Reservoir 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 Hawley Reservoir Dam?
Hawley Reservoir Dam has a dam height of 17 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 Hawley Reservoir Dam last inspected?
Hawley Reservoir Dam was last inspected on September 12, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.