Geneva Dam
Key Takeaway
Geneva Dam is classified as low hazard in Illinois. It was completed in 1910 and is 116 years old. Its primary use is recreation.
Physical Details
| Dam Height | 13 ft (taller than 12.5% in IL) |
| Dam Length | 443 ft |
| Dam Type | Gravity |
| Max Storage | 1.1K acre-ft |
| Normal Storage | 850 acre-ft |
| Year Completed | 1910 (116 years old) |
| Year Modified | 1961 |
| NID ID | IL50087 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
State Government
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Low Hazard 18 ftFrequently Asked Questions
What is the hazard classification of Geneva Dam?
Geneva Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Geneva Dam?
Geneva Dam is owned by ILLINOIS DEPARTMENT OF NATURAL RESOURCES (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Geneva Dam built?
Geneva Dam was completed in 1910, making it 116 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 Geneva Dam?
Geneva 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 Geneva Dam?
Geneva Dam has a dam height of 13 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 Geneva Dam last inspected?
Geneva Dam was last inspected on August 12, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.