Plainville Reservoir Aka Crescent Lake Dam
Key Takeaway
Plainville Reservoir Aka Crescent Lake Dam is classified as high hazard in Connecticut. It was completed in 1884 and is 142 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 17 ft (taller than 66% in CT) |
| Dam Length | 688 ft |
| Dam Type | Earth |
| Max Storage | 528 acre-ft |
| Normal Storage | 429 acre-ft |
| Surface Area | 55 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 109 cfs |
| Year Completed | 1884 (142 years old) |
| NID ID | CT00259 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Town of Southington
Local Government
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High Hazard 18 ftFrequently Asked Questions
What is the hazard classification of Plainville Reservoir Aka Crescent Lake Dam?
Plainville Reservoir Aka Crescent Lake Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Plainville Reservoir Aka Crescent Lake Dam?
Plainville Reservoir Aka Crescent Lake Dam is owned by Town of Southington (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Plainville Reservoir Aka Crescent Lake Dam built?
Plainville Reservoir Aka Crescent Lake Dam was completed in 1884, making it 142 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 Plainville Reservoir Aka Crescent Lake Dam?
Plainville Reservoir Aka Crescent Lake 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 Plainville Reservoir Aka Crescent Lake Dam?
Plainville Reservoir Aka Crescent Lake Dam has a dam height of 17 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 Plainville Reservoir Aka Crescent Lake Dam last inspected?
Plainville Reservoir Aka Crescent Lake Dam was last inspected on July 21, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.