Younquist Lake Dam
Key Takeaway
Younquist Lake Dam is classified as low hazard in Illinois. It was completed in 1939 and is 87 years old. Its primary use is recreation.
Physical Details
| Dam Height | 20 ft (taller than 28.2% in IL) |
| Dam Length | 342 ft |
| Dam Type | Earth |
| Max Storage | 69 acre-ft |
| Normal Storage | 41 acre-ft |
| Year Completed | 1939 (87 years old) |
| NID ID | IL00470 |
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
GENE YOUNGQUIST
Private
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Low Hazard 23 ftFrequently Asked Questions
What is the hazard classification of Younquist Lake Dam?
Younquist Lake 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 Younquist Lake Dam?
Younquist Lake Dam is owned by GENE YOUNGQUIST (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Younquist Lake Dam built?
Younquist Lake Dam was completed in 1939, making it 87 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 Younquist Lake Dam?
Younquist Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Younquist Lake Dam?
Younquist Lake Dam has a dam height of 20 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 Younquist Lake Dam last inspected?
Younquist Lake Dam was last inspected on July 5, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.