Tiskilwa Strucure 2 Dam
Key Takeaway
Tiskilwa Strucure 2 Dam is classified as high hazard in Illinois. It was completed in 1960 and is 66 years old. 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 | 61 ft (taller than 95.9% in IL) |
| Dam Length | 555 ft |
| Dam Type | Earth |
| Max Storage | 1.2K acre-ft |
| Normal Storage | 95 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 7,185 cfs |
| Year Completed | 1960 (66 years old) |
| NID ID | IL00450 |
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 TISKILWA
Local Government
Nearby Dams
Tiskilwa Structure 4 Dam
Bureau, IL
High Hazard 59 ftTiskilwa Structure 5 Dam
Bureau, IL
High Hazard 60 ftTiskilwa Structure 1 Dam
Bureau, IL
High Hazard 49 ftBolton Lakes Dam
Bureau, IL
Low Hazard 26 ftClover Leaf Ranch Lake Dam
Bureau, IL
Low Hazard 34 ftHarmon Pond Dam
Bureau, IL
Significant Hazard 37 ftNewton-Hager Lake Dam
Bureau, IL
Low Hazard 29 ftLake Arispie Dam
Bureau, IL
Significant Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Tiskilwa Strucure 2 Dam?
Tiskilwa Strucure 2 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 Tiskilwa Strucure 2 Dam?
Tiskilwa Strucure 2 Dam is owned by VILLAGE OF TISKILWA (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Tiskilwa Strucure 2 Dam built?
Tiskilwa Strucure 2 Dam was completed in 1960, making it 66 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Tiskilwa Strucure 2 Dam?
Tiskilwa Strucure 2 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 Tiskilwa Strucure 2 Dam?
Tiskilwa Strucure 2 Dam has a dam height of 61 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 Tiskilwa Strucure 2 Dam last inspected?
Tiskilwa Strucure 2 Dam was last inspected on April 13, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.