Old Plank Park Basin Dam
Key Takeaway
Old Plank Park Basin Dam is classified as low hazard in Illinois. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 10 ft (taller than 5.7% in IL) |
| Dam Length | 350 ft |
| Dam Type | Concrete |
| Max Storage | 75 acre-ft |
| Normal Storage | 39 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 870 cfs |
| NID ID | IL55145 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
CITY OF NAPERVILLE
Local Government
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Low Hazard 9 ftFrequently Asked Questions
What is the hazard classification of Old Plank Park Basin Dam?
Old Plank Park Basin Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Old Plank Park Basin Dam?
Old Plank Park Basin Dam is owned by CITY OF NAPERVILLE (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Old Plank Park Basin Dam?
Old Plank Park 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 Old Plank Park Basin Dam?
Old Plank Park 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 Old Plank Park Basin Dam last inspected?
Old Plank Park Basin Dam was last inspected on May 30, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.