Twin Lakes Dam
Key Takeaway
Twin Lakes Dam is classified as low hazard in Illinois. It was completed in 1949 and is 77 years old. Its primary use is recreation.
Physical Details
| Dam Height | 28 ft (taller than 54.6% in IL) |
| Dam Length | 310 ft |
| Dam Type | Earth |
| Max Storage | 140 acre-ft |
| Normal Storage | 111 acre-ft |
| Year Completed | 1949 (77 years old) |
| NID ID | IL00194 |
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
TWIN LAKES ASSOCIATION
Private
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Low Hazard 26 ftFrequently Asked Questions
What is the hazard classification of Twin Lakes Dam?
Twin Lakes 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 Twin Lakes Dam?
Twin Lakes Dam is owned by TWIN LAKES ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Twin Lakes Dam built?
Twin Lakes Dam was completed in 1949, making it 77 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 Twin Lakes Dam?
Twin Lakes 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 Twin Lakes Dam?
Twin Lakes Dam has a dam height of 28 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 Twin Lakes Dam last inspected?
Twin Lakes Dam was last inspected on October 14, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.