Columbia Mill Dam
Key Takeaway
Columbia Mill Dam is classified as significant hazard in Massachusetts. It was completed in 1901 and is 125 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 25 ft (taller than 79.2% in MA) |
| Dam Length | 116 ft |
| Dam Type | Concrete |
| Max Storage | 100 acre-ft |
| Normal Storage | 90 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 184 sq mi |
| Year Completed | 1901 (125 years old) |
| NID ID | MA00260 |
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
LENOX DEVELOPMENT, LLC
Private
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High Hazard 28 ftFrequently Asked Questions
What is the hazard classification of Columbia Mill Dam?
Columbia Mill 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 Columbia Mill Dam?
Columbia Mill Dam is owned by LENOX DEVELOPMENT, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Columbia Mill Dam built?
Columbia Mill Dam was completed in 1901, making it 125 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 Columbia Mill Dam?
Columbia Mill 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 Columbia Mill Dam?
Columbia Mill Dam has a dam height of 25 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 Columbia Mill Dam last inspected?
Columbia Mill Dam was last inspected on February 27, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.