Reservoir #4 Dam
Key Takeaway
Reservoir #4 Dam is classified as significant hazard in Massachusetts. It was completed in 1965 and is 61 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 30 ft (taller than 86.6% in MA) |
| Dam Length | 440 ft |
| Dam Type | Concrete |
| Normal Storage | 180 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1965 (61 years old) |
| NID ID | MA00892 |
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
WHITINSVILLE WATER COMPANY
Private
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Low Hazard 28 ftFrequently Asked Questions
What is the hazard classification of Reservoir #4 Dam?
Reservoir #4 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 Reservoir #4 Dam?
Reservoir #4 Dam is owned by WHITINSVILLE WATER COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Reservoir #4 Dam built?
Reservoir #4 Dam was completed in 1965, making it 61 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 Reservoir #4 Dam?
Reservoir #4 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 Reservoir #4 Dam?
Reservoir #4 Dam has a dam height of 30 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 Reservoir #4 Dam last inspected?
Reservoir #4 Dam was last inspected on May 30, 2014. Inspection dates indicate when a formal review occurred, not the results of that inspection.