Lake Mark Dam
Key Takeaway
Lake Mark Dam is classified as significant hazard in Connecticut. It was completed in 1957 and is 69 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 21 ft (taller than 76.6% in CT) |
| Dam Length | 520 ft |
| Dam Type | Concrete |
| Max Storage | 185 acre-ft |
| Normal Storage | 75 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 463 cfs |
| Year Completed | 1957 (69 years old) |
| NID ID | CT00337 |
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
Prenoveau
Private
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What is the hazard classification of Lake Mark Dam?
Lake Mark 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 Mark Dam?
Lake Mark Dam is owned by Prenoveau (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Mark Dam built?
Lake Mark Dam was completed in 1957, making it 69 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 Mark Dam?
Lake Mark 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 Mark Dam?
Lake Mark Dam has a dam height of 21 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 Mark Dam last inspected?
Lake Mark Dam was last inspected on April 24, 2014. Inspection dates indicate when a formal review occurred, not the results of that inspection.