Mount Williams Reservoir Dam
Key Takeaway
Mount Williams Reservoir Dam is classified as high hazard in Massachusetts. 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 | 40 ft (taller than 92.4% in MA) |
| Dam Length | 700 ft |
| Dam Type | Earth |
| Max Storage | 879 acre-ft |
| Normal Storage | 668 acre-ft |
| Surface Area | 49 acres |
| Drainage Area | 1 sq mi |
| NID ID | MA00282 |
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
City of North Adams, Public Services Commission
Local Government
Nearby Dams
Williamstown Reservoir Dam
Berkshire, MA
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High Hazard 60 ftWindsor Lake Dam
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High Hazard 27 ftEclipse Dam
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High Hazard 52 ftArnold Dam
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Significant Hazard 21 ftNatural Bridge Dam
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Significant Hazard 25 ftGreylock Greenhouse Dam
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Significant Hazard 7 ftFisk Brook Dam
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Significant Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Mount Williams Reservoir Dam?
Mount Williams 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 Mount Williams Reservoir Dam?
Mount Williams Reservoir Dam is owned by City of North Adams, Public Services Commission (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Mount Williams Reservoir Dam?
Mount Williams 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 Mount Williams Reservoir Dam?
Mount Williams Reservoir Dam has a dam height of 40 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 Mount Williams Reservoir Dam last inspected?
Mount Williams Reservoir Dam was last inspected on August 31, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.