Willow Higgins Reservoir Dam
Key Takeaway
Willow Higgins Reservoir Dam is classified as significant hazard in Illinois. Its primary use is flood risk reduction. 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 | 200 ft |
| Dam Type | Earth |
| Max Storage | 32 acre-ft |
| Normal Storage | 0 acre-ft |
| NID ID | IL55035 |
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
CITY OF CHICAGO
Local Government
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Low Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Willow Higgins Reservoir Dam?
Willow Higgins Reservoir 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 Willow Higgins Reservoir Dam?
Willow Higgins Reservoir Dam is owned by CITY OF CHICAGO (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Willow Higgins Reservoir Dam?
Willow Higgins Reservoir Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Willow Higgins Reservoir Dam?
Willow Higgins Reservoir 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 Willow Higgins Reservoir Dam last inspected?
Willow Higgins Reservoir Dam was last inspected on November 19, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.