Patterson Springs Lake Dam
Key Takeaway
Patterson Springs Lake Dam is classified as low hazard in Illinois. It was completed in 1945 and is 81 years old. Its primary use is recreation.
Physical Details
| Dam Height | 13 ft (taller than 12.5% in IL) |
| Dam Length | 240 ft |
| Dam Type | Earth |
| Max Storage | 50 acre-ft |
| Normal Storage | 22 acre-ft |
| Year Completed | 1945 (81 years old) |
| NID ID | IL00882 |
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
SPRING LAKE CORP.
Private
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Significant Hazard 18 ftFrequently Asked Questions
What is the hazard classification of Patterson Springs Lake Dam?
Patterson Springs 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 Patterson Springs Lake Dam?
Patterson Springs Lake Dam is owned by SPRING LAKE CORP. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Patterson Springs Lake Dam built?
Patterson Springs Lake Dam was completed in 1945, making it 81 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 Patterson Springs Lake Dam?
Patterson Springs 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 Patterson Springs Lake Dam?
Patterson Springs Lake Dam has a dam height of 13 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 Patterson Springs Lake Dam last inspected?
Patterson Springs Lake Dam was last inspected on July 7, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.