Powdermill Brook Pl-566 Flood Control Dam
Key Takeaway
Powdermill Brook Pl-566 Flood Control Dam is classified as high hazard in Massachusetts. It was completed in 1962 and is 64 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 | 570 ft |
| Dam Type | Earth |
| Max Storage | 1.2K acre-ft |
| Normal Storage | 6 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 4 sq mi |
| Year Completed | 1962 (64 years old) |
| NID ID | MA00605 |
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 WESTFIELD, PL-566/FLOOD CONTROL, FLOOD COMMISSION
Local Government
Nearby Dams
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Low Hazard 26 ftChapin Pond
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Significant Hazard 34 ftProvin Mountain Reservoir
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High Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Powdermill Brook Pl-566 Flood Control Dam?
Powdermill Brook Pl-566 Flood Control 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 Powdermill Brook Pl-566 Flood Control Dam?
Powdermill Brook Pl-566 Flood Control Dam is owned by CITY OF WESTFIELD, PL-566/FLOOD CONTROL, FLOOD COMMISSION (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Powdermill Brook Pl-566 Flood Control Dam built?
Powdermill Brook Pl-566 Flood Control Dam was completed in 1962, making it 64 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 Powdermill Brook Pl-566 Flood Control Dam?
Powdermill Brook Pl-566 Flood Control Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Powdermill Brook Pl-566 Flood Control Dam?
Powdermill Brook Pl-566 Flood Control 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 Powdermill Brook Pl-566 Flood Control Dam last inspected?
Powdermill Brook Pl-566 Flood Control Dam was last inspected on October 26, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.