Fort Atkinson Milldam

TURKEY RIVER· Winneshiek, Iowa· Built 1914· Gravity· 11 ft tall
Low Hazard Recreation Private

Key Takeaway

Fort Atkinson Milldam is classified as low hazard in Iowa. It was completed in 1914 and is 112 years old. Its primary use is recreation.

Physical Details

Dam Height 11 ft (taller than 2.5% in IA)
Dam Length255 ft
Dam TypeGravity
Max Storage60 acre-ft
Normal Storage60 acre-ft
Surface Area11 acres
Drainage Area211 sq mi
Max Discharge0 cfs
Year Completed1914 (112 years old)
NID IDIA01933

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: No
State Regulated: Yes
Regulatory Agency: IOWA DNR

Ownership

Weist Feed Mill Company

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Fort Atkinson Milldam?

Fort Atkinson Milldam 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 Fort Atkinson Milldam?

Fort Atkinson Milldam is owned by Weist Feed Mill Company (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Fort Atkinson Milldam built?

Fort Atkinson Milldam was completed in 1914, making it 112 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 Fort Atkinson Milldam?

Fort Atkinson Milldam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Fort Atkinson Milldam?

Fort Atkinson Milldam has a dam height of 11 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.

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.