Mirror Lake Dike
Key Takeaway
Mirror Lake Dike is classified as significant hazard in Massachusetts. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 9 ft (taller than 12.4% in MA) |
| Dam Length | 250 ft |
| Dam Type | Earth |
| Max Storage | 400 acre-ft |
| Normal Storage | 240 acre-ft |
| Surface Area | 95 acres |
| Drainage Area | 1 sq mi |
| NID ID | MA03272 |
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
TOWN OF NORFOLK, BOARD OF SELECTMAN
Local Government
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Significant Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Mirror Lake Dike?
Mirror Lake Dike 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 Dike?
Mirror Lake Dike is owned by TOWN OF NORFOLK, BOARD OF SELECTMAN (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Mirror Lake Dike?
Mirror Lake Dike 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 Dike?
Mirror Lake Dike has a dam height of 9 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 Dike last inspected?
Mirror Lake Dike was last inspected on August 9, 2007. Inspection dates indicate when a formal review occurred, not the results of that inspection.