Weldon Springs State Park Lake Dam
Key Takeaway
Weldon Springs State Park Lake Dam is classified as significant hazard in Illinois. It was completed in 1900 and is 126 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 30 ft (taller than 61.3% in IL) |
| Dam Length | 73 ft |
| Dam Type | Earth |
| Max Storage | 532 acre-ft |
| Normal Storage | 303 acre-ft |
| Surface Area | 29 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 3,292 cfs |
| Year Completed | 1900 (126 years old) |
| NID ID | IL00206 |
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
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Weldon Springs State Park Lake Dam?
Weldon Springs State Park 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 Weldon Springs State Park Lake Dam?
Weldon Springs State Park 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 Weldon Springs State Park Lake Dam built?
Weldon Springs State Park Lake Dam was completed in 1900, making it 126 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 Weldon Springs State Park Lake Dam?
Weldon Springs State Park 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 Weldon Springs State Park Lake Dam?
Weldon Springs State Park Lake Dam has a dam height of 30 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 Weldon Springs State Park Lake Dam last inspected?
Weldon Springs State Park Lake Dam was last inspected on October 14, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.