Tomahawk Lake Dam
Key Takeaway
Tomahawk Lake Dam is classified as low hazard in Illinois. It was completed in 1966 and is 60 years old. Its primary use is recreation.
Physical Details
| Dam Height | 19 ft (taller than 26.3% in IL) |
| Dam Length | 505 ft |
| Dam Type | Earth |
| Max Storage | 52 acre-ft |
| Normal Storage | 34 acre-ft |
| Year Completed | 1966 (60 years old) |
| NID ID | IL00595 |
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
THOMAS A. BROWN, JR.
Private
Nearby Dams
Potthast Lake Dam
Bond, IL
Low Hazard 15 ftHillcrest Farms Pond 1
Bond, IL
Low Hazard 29 ftWagner Lake Dam
Bond, IL
Low Hazard 28 ftKlaus Lake Dam
Madison, IL
Significant Hazard 17 ftWick Pond Dam 1
Madison, IL
Unknown 26 ftRayburn Lake Dam
Madison, IL
Significant Hazard 27 ftTowne East Lake Dam
Madison, IL
Low Hazard 20 ftGreenville Old City Lake Dam
Bond, IL
Low Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Tomahawk Lake Dam?
Tomahawk 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 Tomahawk Lake Dam?
Tomahawk Lake Dam is owned by THOMAS A. BROWN, JR. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Tomahawk Lake Dam built?
Tomahawk Lake Dam was completed in 1966, making it 60 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 Tomahawk Lake Dam?
Tomahawk 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 Tomahawk Lake Dam?
Tomahawk Lake Dam has a dam height of 19 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 Tomahawk Lake Dam last inspected?
Tomahawk Lake Dam was last inspected on June 22, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.