Ashley Lake Reservoir
Key Takeaway
Ashley Lake Reservoir is classified as high hazard in Massachusetts. It was completed in 1902 and is 124 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 | 22 ft (taller than 73.7% in MA) |
| Dam Length | 850 ft |
| Dam Type | Masonry |
| Max Storage | 1.5K acre-ft |
| Normal Storage | 1.1K acre-ft |
| Surface Area | 106 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1902 (124 years old) |
| NID ID | MA00313 |
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 PITTSFIELD, OFFICE OF THE MAYOR
Local Government
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High Hazard 63 ftFrequently Asked Questions
What is the hazard classification of Ashley Lake Reservoir?
Ashley Lake Reservoir 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 Ashley Lake Reservoir?
Ashley Lake Reservoir is owned by CITY OF PITTSFIELD, OFFICE OF THE MAYOR (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Ashley Lake Reservoir built?
Ashley Lake Reservoir was completed in 1902, making it 124 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 Ashley Lake Reservoir?
Ashley Lake Reservoir 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 Ashley Lake Reservoir?
Ashley Lake Reservoir has a dam height of 22 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 Ashley Lake Reservoir last inspected?
Ashley Lake Reservoir was last inspected on November 10, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.