Windmill Lake Dam

TR-WEST BRANCH 102 RIVER· Taylor, Iowa· Built 1969· Earth· 35 ft tall
Low Hazard Recreation Local Government

Key Takeaway

Windmill Lake Dam is classified as low hazard in Iowa. It was completed in 1969 and is 57 years old. Its primary use is recreation.

Physical Details

Dam Height 35 ft (taller than 70.9% in IA)
Dam Length900 ft
Dam TypeEarth
Max Storage247 acre-ft
Normal Storage66 acre-ft
Surface Area25 acres
Drainage Area1 sq mi
Max Discharge0 cfs
Year Completed1969 (57 years old)
NID IDIA01053

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

Taylor County Conservation Board

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Windmill Lake Dam?

Windmill Lake Dam 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 Windmill Lake Dam?

Windmill Lake Dam is owned by Taylor County Conservation Board (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Windmill Lake Dam built?

Windmill Lake Dam was completed in 1969, making it 57 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 Windmill Lake Dam?

Windmill Lake Dam 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 Windmill Lake Dam?

Windmill Lake Dam has a dam height of 35 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.