Big St Germain
Key Takeaway
Big St Germain 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 | 7 ft (taller than 1% in WI) |
| Dam Length | 117 ft |
| Dam Type | Gravity |
| Max Storage | 33.7K acre-ft |
| Drainage Area | 73 sq mi |
| Max Discharge | 458 cfs |
| Year Completed | 1923 (103 years old) |
| NID ID | WI01146 |
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
Wisconsin Valley Improvement Company
Public Utility
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Big St Germain?
Big St Germain 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 Big St Germain?
Big St Germain is owned by Wisconsin Valley Improvement Company (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Big St Germain built?
Big St Germain 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 Big St Germain?
Big St Germain serves the following purposes: Hydroelectric, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Big St Germain?
Big St Germain has a dam height of 7 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 Big St Germain last inspected?
Big St Germain was last inspected on August 3, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.