Callahan Lake
Key Takeaway
Callahan Lake is classified as low hazard in Wisconsin. It was completed in 1938 and is 88 years old. Its primary use is recreation.
Physical Details
| Dam Height | 15 ft (taller than 45% in WI) |
| Dam Length | 225 ft |
| Dam Type | Gravity |
| Max Storage | 6.3K acre-ft |
| Normal Storage | 3.4K acre-ft |
| Surface Area | 602 acres |
| Drainage Area | 22 sq mi |
| Max Discharge | 600 cfs |
| Year Completed | 1938 (88 years old) |
| NID ID | WI00308 |
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
Jenkins, Ruby
Private
Nearby Dams
Tiger Cat
Sawyer, WI
Significant Hazard 18 ftMaina
Sawyer, WI
Low Hazard 10 ftHouse
Sawyer, WI
Low Hazard 11 ftMoose Lake 1
Sawyer, WI
High Hazard 23 ftChippewa Reservoir
Sawyer, WI
High Hazard 45 ftGhost Lake
Sawyer, WI
Low Hazard 17 ftLynch Creek No 5
Sawyer, WI
Low Hazard 10 ftBalsam Creek
Sawyer, WI
Low Hazard 9 ftFrequently Asked Questions
What is the hazard classification of Callahan Lake?
Callahan Lake 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 Callahan Lake?
Callahan Lake is owned by Jenkins, Ruby (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Callahan Lake built?
Callahan Lake was completed in 1938, making it 88 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 Callahan Lake?
Callahan Lake 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 Callahan Lake?
Callahan Lake 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 Callahan Lake last inspected?
Callahan Lake was last inspected on June 2, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.