Lower Hydro
Key Takeaway
Lower Hydro is classified as low hazard in Wisconsin. It was completed in 1923 and is 103 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 22 ft (taller than 64.9% in WI) |
| Dam Length | 340 ft |
| Dam Type | Gravity |
| Max Storage | 570 acre-ft |
| Normal Storage | 570 acre-ft |
| Surface Area | 71 acres |
| Drainage Area | 762 sq mi |
| Max Discharge | 16,200 cfs |
| Year Completed | 1923 (103 years old) |
| NID ID | WI00785 |
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
Flambeau Hydro, Llc
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Lower Hydro?
Lower Hydro 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 Lower Hydro?
Lower Hydro is owned by Flambeau Hydro, Llc (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lower Hydro built?
Lower Hydro was completed in 1923, making it 103 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 Lower Hydro?
Lower Hydro serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lower Hydro?
Lower Hydro has a dam height of 22 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 Lower Hydro last inspected?
Lower Hydro was last inspected on July 13, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.