Maas Dam
Key Takeaway
Maas Dam is classified as low hazard in Illinois. It was completed in 1999 and is 27 years old. Its primary use is recreation.
Physical Details
| Dam Height | 60 ft (taller than 95.6% in IL) |
| Dam Length | 700 ft |
| Dam Type | Earth |
| Max Storage | 195 acre-ft |
| Normal Storage | 156 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 480 cfs |
| Year Completed | 1999 (27 years old) |
| NID ID | IL50437 |
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
PAUL MAAS
Private
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Low Hazard 24 ftFrequently Asked Questions
What is the hazard classification of Maas Dam?
Maas 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 Maas Dam?
Maas Dam is owned by PAUL MAAS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Maas Dam built?
Maas Dam was completed in 1999, making it 27 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 Maas Dam?
Maas 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 Maas Dam?
Maas Dam has a dam height of 60 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 Maas Dam last inspected?
Maas Dam was last inspected on May 27, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.