Lake George Dam
Key Takeaway
Lake George Dam is classified as high hazard in Illinois. It was completed in 1962 and is 64 years old. Its primary use is recreation. 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 | 78 ft (taller than 98.1% in IL) |
| Dam Length | 1,090 ft |
| Dam Type | Earth |
| Max Storage | 6.4K acre-ft |
| Normal Storage | 4.0K acre-ft |
| Surface Area | 167 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 15,027 cfs |
| Year Completed | 1962 (64 years old) |
| NID ID | IL00136 |
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
ROCK ISLAND COUNTY FOREST PRESERVE DIST.
Local Government
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What is the hazard classification of Lake George Dam?
Lake George 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 Lake George Dam?
Lake George Dam is owned by ROCK ISLAND COUNTY FOREST PRESERVE DIST. (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake George Dam built?
Lake George Dam was completed in 1962, making it 64 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 George Dam?
Lake George 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 George Dam?
Lake George Dam has a dam height of 78 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 George Dam last inspected?
Lake George Dam was last inspected on May 12, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.