Lake Gaillard East Dike
Key Takeaway
Lake Gaillard East Dike is classified as high hazard in Connecticut. It was completed in 1929 and is 97 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 | 22 ft (taller than 78.5% in CT) |
| Dam Length | 1,680 ft |
| Dam Type | Earth |
| Max Storage | 53.5K acre-ft |
| Normal Storage | 48.0K acre-ft |
| Surface Area | 1,110 acres |
| Drainage Area | 8 sq mi |
| Max Discharge | 2,180 cfs |
| Year Completed | 1929 (97 years old) |
| Year Modified | 2012 |
| NID ID | CT00387 |
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
South Central CT RWA
Public Utility
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Significant Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Lake Gaillard East Dike?
Lake Gaillard East Dike 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 Lake Gaillard East Dike?
Lake Gaillard East Dike is owned by South Central CT RWA (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Gaillard East Dike built?
Lake Gaillard East Dike was completed in 1929, making it 97 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 Gaillard East Dike?
Lake Gaillard East Dike 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 Lake Gaillard East Dike?
Lake Gaillard East Dike has a dam height of 22 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 Gaillard East Dike last inspected?
Lake Gaillard East Dike was last inspected on November 5, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.