Yorkville Dam
Key Takeaway
Yorkville Dam is classified as significant hazard in Illinois. It was completed in 1961 and is 65 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 12 ft (taller than 10% in IL) |
| Dam Length | 530 ft |
| Dam Type | Gravity |
| Max Storage | 750 acre-ft |
| Normal Storage | 288 acre-ft |
| Drainage Area | 1,804 sq mi |
| Year Completed | 1961 (65 years old) |
| NID ID | IL50088 |
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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What is the hazard classification of Yorkville Dam?
Yorkville 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 Yorkville Dam?
Yorkville 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 Yorkville Dam built?
Yorkville Dam was completed in 1961, making it 65 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 Yorkville Dam?
Yorkville 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 Yorkville Dam?
Yorkville Dam has a dam height of 12 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 Yorkville Dam last inspected?
Yorkville Dam was last inspected on June 1, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.