Mirror Lake Dam
Key Takeaway
Mirror Lake Dam is classified as significant hazard in Massachusetts. It was completed in 1991 and is 35 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 15 ft (taller than 48.8% in MA) |
| Dam Length | 150 ft |
| Dam Type | Earth |
| Max Storage | 45 acre-ft |
| Normal Storage | 38 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1991 (35 years old) |
| NID ID | MA02779 |
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
CITY OF FITCHBURG, PARKS DEPARTMENT
Local Government
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High Hazard 41 ftFrequently Asked Questions
What is the hazard classification of Mirror Lake Dam?
Mirror Lake 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 Mirror Lake Dam?
Mirror Lake Dam is owned by CITY OF FITCHBURG, PARKS DEPARTMENT (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mirror Lake Dam built?
Mirror Lake Dam was completed in 1991, making it 35 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 Mirror Lake Dam?
Mirror Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mirror Lake Dam?
Mirror Lake Dam has a dam height of 15 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 Mirror Lake Dam last inspected?
Mirror Lake Dam was last inspected on November 25, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.