Potthast Lake Dam
Key Takeaway
Potthast Lake Dam is classified as low hazard in Illinois. It was completed in 1974 and is 52 years old. Its primary use is recreation.
Physical Details
| Dam Height | 15 ft (taller than 16.3% in IL) |
| Dam Length | 640 ft |
| Dam Type | Earth |
| Max Storage | 152 acre-ft |
| Normal Storage | 60 acre-ft |
| Year Completed | 1974 (52 years old) |
| NID ID | IL01019 |
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
CLARENCE POTTHAST
Private
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Low Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Potthast Lake Dam?
Potthast 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 Potthast Lake Dam?
Potthast Lake Dam is owned by CLARENCE POTTHAST (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Potthast Lake Dam built?
Potthast Lake Dam was completed in 1974, making it 52 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 Potthast Lake Dam?
Potthast 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 Potthast Lake Dam?
Potthast Lake Dam has a dam height of 15 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 Potthast Lake Dam last inspected?
Potthast Lake Dam was last inspected on April 26, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.