Lake Iroquois
Key Takeaway
Lake Iroquois is classified as low hazard in Illinois. It was completed in 1969 and is 57 years old. Its primary use is recreation.
Physical Details
| Dam Height | 16 ft (taller than 20.3% in IL) |
| Dam Length | 730 ft |
| Dam Type | Earth |
| Max Storage | 760 acre-ft |
| Normal Storage | 332 acre-ft |
| Year Completed | 1969 (57 years old) |
| NID ID | IL00259 |
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
LAKE IROQUOIS ASSOCIATION
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Lake Iroquois?
Lake Iroquois 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 Lake Iroquois?
Lake Iroquois is owned by LAKE IROQUOIS ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Iroquois built?
Lake Iroquois was completed in 1969, making it 57 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 Lake Iroquois?
Lake Iroquois 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 Lake Iroquois?
Lake Iroquois has a dam height of 16 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 Lake Iroquois last inspected?
Lake Iroquois was last inspected on October 21, 2014. Inspection dates indicate when a formal review occurred, not the results of that inspection.