Eureka

FOX R.· Winnebago, Wisconsin· Built 1920· Gravity· 8 ft tall
Low Hazard State Government

Key Takeaway

Eureka is classified as low hazard in Wisconsin. It was completed in 1920 and is 106 years old.

Physical Details

Dam Height 8 ft (taller than 5.5% in WI)
Dam Length209 ft
Dam TypeGravity
Max Storage124 acre-ft
Normal Storage33 acre-ft
Surface Area24 acres
Drainage Area1,492 sq mi
Max Discharge4,560 cfs
Year Completed1920 (106 years old)
NID IDWI10641

Safety Information

Low Hazard

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?

Emergency Action Plan: Yes
Last Inspection: May 29, 2018
State Regulated: Yes
Regulatory Agency: WIDNR

Ownership

Wisconsin Department of Natural Resources

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Eureka?

Eureka 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 Eureka?

Eureka is owned by Wisconsin Department of Natural Resources (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Eureka built?

Eureka was completed in 1920, making it 106 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

How tall is Eureka?

Eureka has a dam height of 8 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 Eureka last inspected?

Eureka was last inspected on May 29, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.