Atlas Feed Mill

Trade River· Polk, Wisconsin· Built 1874· Gravity· 14 ft tall
Significant Hazard Recreation Hydroelectric Local Government

Key Takeaway

Atlas Feed Mill is classified as significant hazard in Wisconsin. It was completed in 1874 and is 152 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 14 ft (taller than 40.1% in WI)
Dam Length92 ft
Dam TypeGravity
Max Storage1.6K acre-ft
Normal Storage1.1K acre-ft
Surface Area153 acres
Drainage Area45 sq mi
Max Discharge1,823 cfs
Year Completed1874 (152 years old)
NID IDWI00173

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

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

Emergency Action Plan: Yes
Last Inspection: November 5, 2019
State Regulated: Yes
Regulatory Agency: WIDNR

Ownership

Polk County

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Atlas Feed Mill?

Atlas Feed Mill is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Atlas Feed Mill?

Atlas Feed Mill is owned by Polk County (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Atlas Feed Mill built?

Atlas Feed Mill was completed in 1874, making it 152 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 Atlas Feed Mill?

Atlas Feed Mill serves the following purposes: Recreation, Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Atlas Feed Mill?

Atlas Feed Mill has a dam height of 14 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 Atlas Feed Mill last inspected?

Atlas Feed Mill was last inspected on November 5, 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.