Windsor Reservoir Dam
Key Takeaway
Windsor Reservoir Dam is classified as high hazard in Massachusetts. It was completed in 1865 and is 161 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 51 ft (taller than 95.8% in MA) |
| Dam Length | 280 ft |
| Dam Type | Earth |
| Max Storage | 1.5K acre-ft |
| Normal Storage | 900 acre-ft |
| Surface Area | 74 acres |
| Drainage Area | 15 sq mi |
| Year Completed | 1865 (161 years old) |
| NID ID | MA00841 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
TOWN OF DALTON, DALTON FIRE DISTRICT
Local Government
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Significant Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Windsor Reservoir Dam?
Windsor Reservoir Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Windsor Reservoir Dam?
Windsor Reservoir Dam is owned by TOWN OF DALTON, DALTON FIRE DISTRICT (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Windsor Reservoir Dam built?
Windsor Reservoir Dam was completed in 1865, making it 161 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 Windsor Reservoir Dam?
Windsor 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 Windsor Reservoir Dam?
Windsor Reservoir Dam has a dam height of 51 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 Windsor Reservoir Dam last inspected?
Windsor Reservoir Dam was last inspected on May 31, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.