Hahn Lake Dam
Key Takeaway
Hahn Lake Dam is classified as low hazard in Illinois. It was completed in 1947 and is 79 years old. Its primary use is recreation.
Physical Details
| Dam Height | 32 ft (taller than 69.5% in IL) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 195 acre-ft |
| Normal Storage | 129 acre-ft |
| Year Completed | 1947 (79 years old) |
| NID ID | IL00330 |
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
EUGENE HAHN
Private
Nearby Dams
Millers Lake Dam
Richland, IL
Low Hazard 20 ftJordan Lake Dam
Richland, IL
Significant Hazard 25 ftEast Fork Lake Dam
Richland, IL
High Hazard 84 ftCoens Pond Dam
Richland, IL
Low Hazard 18 ftWebber Lake Dam
Richland, IL
Low Hazard 22 ftM. D. Borah Lake Dam
Richland, IL
High Hazard 36 ftVernor Lake Dam
Richland, IL
Significant Hazard 42 ftBunn Pond Dam 1
Richland, IL
Low Hazard 28 ftFrequently Asked Questions
What is the hazard classification of Hahn Lake Dam?
Hahn 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 Hahn Lake Dam?
Hahn Lake Dam is owned by EUGENE HAHN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hahn Lake Dam built?
Hahn Lake Dam was completed in 1947, making it 79 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 Hahn Lake Dam?
Hahn 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 Hahn Lake Dam?
Hahn Lake Dam has a dam height of 32 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 Hahn Lake Dam last inspected?
Hahn Lake Dam was last inspected on August 21, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.