Duffield Dam
Key Takeaway
Duffield Dam is classified as significant hazard in Connecticut. It was completed in 1880 and is 146 years old. 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 | 203 ft |
| Dam Type | Masonry |
| Max Storage | 185 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 11 sq mi |
| Max Discharge | 94 cfs |
| Year Completed | 1880 (146 years old) |
| NID ID | CT00410 |
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
Guilford Lakes Improvement Association
Private
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Significant Hazard 4 ftFrequently Asked Questions
What is the hazard classification of Duffield Dam?
Duffield 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 Duffield Dam?
Duffield Dam is owned by Guilford Lakes Improvement Association (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Duffield Dam built?
Duffield Dam was completed in 1880, making it 146 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 Duffield Dam?
Duffield 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 Duffield Dam?
Duffield 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 Duffield Dam last inspected?
Duffield Dam was last inspected on January 2, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.