High Hill Farms Dam
Key Takeaway
High Hill Farms Dam is classified as high hazard in Illinois. It was completed in 1977 and is 49 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 | 23 ft (taller than 37.7% in IL) |
| Dam Length | 575 ft |
| Dam Type | Earth |
| Max Storage | 76 acre-ft |
| Normal Storage | 2 acre-ft |
| Max Discharge | 600 cfs |
| Year Completed | 1977 (49 years old) |
| Year Modified | 1994 |
| NID ID | IL50356 |
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 ALGONQUIN
Local Government
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High Hazard 14 ftFrequently Asked Questions
What is the hazard classification of High Hill Farms Dam?
High Hill Farms 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 High Hill Farms Dam?
High Hill Farms Dam is owned by VILLAGE OF ALGONQUIN (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was High Hill Farms Dam built?
High Hill Farms Dam was completed in 1977, making it 49 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 High Hill Farms Dam?
High Hill Farms 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 High Hill Farms Dam?
High Hill Farms Dam has a dam height of 23 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 High Hill Farms Dam last inspected?
High Hill Farms Dam was last inspected on October 15, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.