Dead Horse Slough

Ashland, Wisconsin· 19 ft tall
High Hazard State Government

Key Takeaway

Dead Horse Slough is classified as high hazard in Wisconsin. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 19 ft (taller than 58% in WI)
Dam Length360 ft
Max Storage900 acre-ft
Normal Storage400 acre-ft
Surface Area100 acres
Drainage Area6 sq mi
Max Discharge100 cfs
NID IDWI12880

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: July 2, 2019
State Regulated: Yes
Regulatory Agency: WIDNR

Ownership

Wisconsin Department of Transportation

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Dead Horse Slough?

Dead Horse Slough is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Dead Horse Slough?

Dead Horse Slough is owned by Wisconsin Department of Transportation (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

How tall is Dead Horse Slough?

Dead Horse Slough has a dam height of 19 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 Dead Horse Slough last inspected?

Dead Horse Slough was last inspected on July 2, 2019. 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.