Stonegate Lake Dam
Key Takeaway
Stonegate Lake Dam is classified as high hazard in Illinois. It was completed in 1960 and is 66 years old. Its primary use is flood risk reduction. 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 | 23 ft (taller than 37.7% in IL) |
| Dam Length | 200 ft |
| Dam Type | Earth |
| Max Storage | 10 acre-ft |
| Normal Storage | 7 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 76 cfs |
| Year Completed | 1960 (66 years old) |
| Year Modified | 2004 |
| NID ID | IL50515 |
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
GEORGE WEBER
Private
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Significant Hazard 33 ftFrequently Asked Questions
What is the hazard classification of Stonegate Lake Dam?
Stonegate 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 Stonegate Lake Dam?
Stonegate Lake Dam is owned by GEORGE WEBER (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Stonegate Lake Dam built?
Stonegate Lake Dam was completed in 1960, making it 66 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 Stonegate Lake Dam?
Stonegate Lake Dam serves the following purposes: Flood Risk Reduction, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Stonegate Lake Dam?
Stonegate Lake Dam has a dam height of 23 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 Stonegate Lake Dam last inspected?
Stonegate Lake Dam was last inspected on September 29, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.