Knight Hawk/Prairie Eagle/North Refuse Area Dam
Key Takeaway
Knight Hawk/Prairie Eagle/North Refuse Area Dam is classified as significant hazard in Illinois. Its primary use is tailings. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 50 ft (taller than 91.7% in IL) |
| Dam Length | 5,100 ft |
| Dam Type | Earth |
| Max Storage | 1.5K acre-ft |
| Normal Storage | 1.4K acre-ft |
| Surface Area | 33 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 30 cfs |
| NID ID | IL50617 |
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
KNIGHT HAWK COAL, LLC
Private
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Significant Hazard 35 ftFrequently Asked Questions
What is the hazard classification of Knight Hawk/Prairie Eagle/North Refuse Area Dam?
Knight Hawk/Prairie Eagle/North Refuse Area 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 Knight Hawk/Prairie Eagle/North Refuse Area Dam?
Knight Hawk/Prairie Eagle/North Refuse Area Dam is owned by KNIGHT HAWK COAL, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Knight Hawk/Prairie Eagle/North Refuse Area Dam?
Knight Hawk/Prairie Eagle/North Refuse Area Dam serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Knight Hawk/Prairie Eagle/North Refuse Area Dam?
Knight Hawk/Prairie Eagle/North Refuse Area Dam has a dam height of 50 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 Knight Hawk/Prairie Eagle/North Refuse Area Dam last inspected?
Knight Hawk/Prairie Eagle/North Refuse Area Dam was last inspected on November 1, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.