Dells Lake
Key Takeaway
Dells Lake is classified as low hazard in Wisconsin. It was completed in 1866 and is 160 years old. Its primary use is recreation.
Physical Details
| Dam Height | 27 ft (taller than 75.9% in WI) |
| Dam Length | 80 ft |
| Dam Type | Gravity |
| Max Storage | 560 acre-ft |
| Normal Storage | 409 acre-ft |
| Surface Area | 75 acres |
| Drainage Area | 66 sq mi |
| Max Discharge | 2,100 cfs |
| Year Completed | 1866 (160 years old) |
| NID ID | WI00038 |
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
Borntreger, Herman
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Dells Lake?
Dells 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 Dells Lake?
Dells Lake is owned by Borntreger, Herman (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Dells Lake built?
Dells Lake was completed in 1866, making it 160 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 Dells Lake?
Dells 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 Dells Lake?
Dells Lake has a dam height of 27 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 Dells Lake last inspected?
Dells Lake was last inspected on June 24, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.