Cooley Hill Reservoir Dam
Key Takeaway
Cooley Hill Reservoir Dam is classified as significant hazard in Massachusetts. It was completed in 1887 and is 139 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 18 ft (taller than 63.9% in MA) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 30 acre-ft |
| Normal Storage | 19 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1887 (139 years old) |
| NID ID | MA01932 |
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 BROOKFIELD
Local Government
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Low Hazard 7 ftFrequently Asked Questions
What is the hazard classification of Cooley Hill Reservoir Dam?
Cooley Hill 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 Cooley Hill Reservoir Dam?
Cooley Hill Reservoir Dam is owned by TOWN OF BROOKFIELD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Cooley Hill Reservoir Dam built?
Cooley Hill Reservoir Dam was completed in 1887, making it 139 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 Cooley Hill Reservoir Dam?
Cooley Hill 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 Cooley Hill Reservoir Dam?
Cooley Hill Reservoir Dam has a dam height of 18 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 Cooley Hill Reservoir Dam last inspected?
Cooley Hill Reservoir Dam was last inspected on October 27, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.