Cyril Johnson Mill Dam
Key Takeaway
Cyril Johnson Mill Dam is classified as significant hazard in Connecticut. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 15 ft (taller than 58.6% in CT) |
| Dam Length | 232 ft |
| Dam Type | Masonry |
| Normal Storage | 0 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 16 sq mi |
| NID ID | CT01308 |
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
American Woolen Co., Inc
Private
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Significant Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Cyril Johnson Mill Dam?
Cyril Johnson 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 Cyril Johnson Mill Dam?
Cyril Johnson Mill Dam is owned by American Woolen Co., Inc (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Cyril Johnson Mill Dam?
Cyril Johnson 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 Cyril Johnson Mill Dam?
Cyril Johnson Mill 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.