Main Street Triangle Dam
Key Takeaway
Main Street Triangle 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 | 9 ft (taller than 3.9% in IL) |
| Dam Length | 395 ft |
| Dam Type | Concrete |
| Normal Storage | 0 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| NID ID | IL55123 |
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
VILLAGE OF ORLAND PARK
Local Government
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Significant Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Main Street Triangle Dam?
Main Street Triangle 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 Main Street Triangle Dam?
Main Street Triangle 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 Main Street Triangle Dam?
Main Street Triangle 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 Main Street Triangle Dam?
Main Street Triangle Dam has a dam height of 9 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 Main Street Triangle Dam last inspected?
Main Street Triangle Dam was last inspected on December 19, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.