Grasslands Basin Dam
Key Takeaway
Grasslands Basin Dam is classified as high hazard in Illinois. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 10 ft (taller than 5.7% in IL) |
| Dam Type | Earth |
| Max Storage | 22 acre-ft |
| Normal Storage | 0 acre-ft |
| Drainage Area | 0 sq mi |
| NID ID | IL55173 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
VILLAGE OF ORLAND PARK
Local Government
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Low Hazard 12 ftFrequently Asked Questions
What is the hazard classification of Grasslands Basin Dam?
Grasslands Basin Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Grasslands Basin Dam?
Grasslands Basin Dam is owned by VILLAGE OF ORLAND PARK (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Grasslands Basin Dam?
Grasslands Basin 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 Grasslands Basin Dam?
Grasslands Basin Dam has a dam height of 10 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 Grasslands Basin Dam last inspected?
Grasslands Basin Dam was last inspected on June 19, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.