Johnstone Pond Dam
Key Takeaway
Johnstone Pond Dam is classified as significant hazard in Connecticut. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 12 ft (taller than 42.4% in CT) |
| Dam Length | 200 ft |
| Dam Type | Earth |
| Surface Area | 9 acres |
| Drainage Area | 1 sq mi |
| NID ID | CT01490 |
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
Raymond W. & Donna M. Auger
Private
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High Hazard 70 ftFrequently Asked Questions
What is the hazard classification of Johnstone Pond Dam?
Johnstone Pond 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 Johnstone Pond Dam?
Johnstone Pond Dam is owned by Raymond W. & Donna M. Auger (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Johnstone Pond Dam?
Johnstone Pond 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 Johnstone Pond Dam?
Johnstone Pond Dam has a dam height of 12 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 Johnstone Pond Dam last inspected?
Johnstone Pond Dam was last inspected on December 9, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.