Lake Jasper Dam
Key Takeaway
Lake Jasper 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 | 18 ft (taller than 24.2% in IL) |
| Dam Length | 425 ft |
| Dam Type | Earth |
| Max Storage | 146 acre-ft |
| Normal Storage | 106 acre-ft |
| Year Completed | 1945 (81 years old) |
| NID ID | IL00660 |
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 JASPER CORP.
Private
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What is the hazard classification of Lake Jasper Dam?
Lake Jasper 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 Lake Jasper Dam?
Lake Jasper Dam is owned by LAKE JASPER CORP. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Jasper Dam built?
Lake Jasper 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 Lake Jasper Dam?
Lake Jasper 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 Lake Jasper Dam?
Lake Jasper Dam has a dam height of 18 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 Jasper Dam last inspected?
Lake Jasper Dam was last inspected on September 28, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.