West Hill Dam
Key Takeaway
West Hill Dam is classified as high hazard in Massachusetts. It was completed in 1961 and is 65 years old. Its primary use is flood risk reduction. 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 | 48 ft (taller than 95% in MA) |
| Dam Length | 670 ft |
| Dam Type | Gravity |
| Max Storage | 29.5K acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 28 sq mi |
| Max Discharge | 8,900 cfs |
| Year Completed | 1961 (65 years old) |
| NID ID | MA00971 |
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
USACE - New England District
Federal Government
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Low Hazard 10 ftFrequently Asked Questions
What is the hazard classification of West Hill Dam?
West Hill 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 West Hill Dam?
West Hill Dam is owned by USACE - New England District (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was West Hill Dam built?
West Hill Dam was completed in 1961, making it 65 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 West Hill Dam?
West Hill Dam serves the following purposes: Flood Risk Reduction, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is West Hill Dam?
West Hill Dam has a dam height of 48 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 West Hill Dam last inspected?
West Hill Dam was last inspected on June 15, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.