Risdon Pond Dam
Key Takeaway
Risdon Pond Dam is classified as significant hazard in Connecticut. It was completed in 1890 and is 136 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 27 ft (taller than 85.1% in CT) |
| Dam Length | 150 ft |
| Dam Type | Earth |
| Max Storage | 11 acre-ft |
| Normal Storage | 9 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 220 cfs |
| Year Completed | 1890 (136 years old) |
| NID ID | CT00176 |
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
Lin
Private
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Significant Hazard 7 ftFrequently Asked Questions
What is the hazard classification of Risdon Pond Dam?
Risdon 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 Risdon Pond Dam?
Risdon Pond Dam is owned by Lin (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Risdon Pond Dam built?
Risdon Pond Dam was completed in 1890, making it 136 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 Risdon Pond Dam?
Risdon Pond 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 Risdon Pond Dam?
Risdon Pond Dam has a dam height of 27 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 Risdon Pond Dam last inspected?
Risdon Pond Dam was last inspected on November 3, 1986. Inspection dates indicate when a formal review occurred, not the results of that inspection.