Randolph County Lake Dam
Key Takeaway
Randolph County Lake Dam is classified as significant hazard in Illinois. It was completed in 1960 and is 66 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 47 ft (taller than 89.6% in IL) |
| Dam Length | 665 ft |
| Dam Type | Earth |
| Max Storage | 1.6K acre-ft |
| Normal Storage | 946 acre-ft |
| Year Completed | 1960 (66 years old) |
| NID ID | IL00551 |
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
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
State Government
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Low Hazard 28 ftFrequently Asked Questions
What is the hazard classification of Randolph County Lake Dam?
Randolph County Lake 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 Randolph County Lake Dam?
Randolph County Lake 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 Randolph County Lake Dam built?
Randolph County 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 Randolph County Lake Dam?
Randolph County Lake 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 Randolph County Lake Dam?
Randolph County Lake Dam has a dam height of 47 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 Randolph County Lake Dam last inspected?
Randolph County Lake Dam was last inspected on December 22, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.