Lake Plymouth Dam
Key Takeaway
Lake Plymouth Dam is classified as significant hazard in Connecticut. It was completed in 1900 and is 126 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 11 ft (taller than 37.9% in CT) |
| Dam Length | 331 ft |
| Dam Type | Earth |
| Max Storage | 128 acre-ft |
| Normal Storage | 128 acre-ft |
| Surface Area | 46 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 133 cfs |
| Year Completed | 1900 (126 years old) |
| NID ID | CT00290 |
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
Lake Plymouth Community Assoc Inc.
Private
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High Hazard 35 ftFrequently Asked Questions
What is the hazard classification of Lake Plymouth Dam?
Lake Plymouth 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 Lake Plymouth Dam?
Lake Plymouth Dam is owned by Lake Plymouth Community Assoc Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Plymouth Dam built?
Lake Plymouth Dam was completed in 1900, making it 126 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 Lake Plymouth Dam?
Lake Plymouth 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 Lake Plymouth Dam?
Lake Plymouth Dam has a dam height of 11 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 Lake Plymouth Dam last inspected?
Lake Plymouth Dam was last inspected on April 22, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.