Willow Marsh Dam

Posey, Indiana· Earth· 10 ft tall
Low Hazard Recreation State Government

Key Takeaway

Willow Marsh Dam is classified as low hazard in Indiana. Its primary use is recreation.

Physical Details

Dam Height 10 ft (taller than 2.2% in IN)
Dam Length600 ft
Dam TypeEarth
Max Storage0 acre-ft
Normal Storage75 acre-ft
Surface Area0 acres
Drainage Area0 sq mi
Max Discharge0 cfs
NID IDIN03797

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
Last Inspection: January 1, 1990
State Regulated: No

Ownership

Indiana Department of Natural Resources

State Government

Nearby Dams

River View Fresh Water Lake 01i

Union, KY

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River View Slurry Lake 02i

Union, KY

High Hazard 160 ft

River View West Slurry Lake

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High Hazard 146 ft

John T. Myers Locks and Dam

Union, KY

Significant Hazard

Slurry Lake 07i

Union, KY

High Hazard 69 ft

Morganfield City Lake Dam

Union, KY

High Hazard 21 ft

Slurry Lake 04i

Union, KY

High Hazard 86 ft

Freshwater Lake

Union, KY

Low Hazard 28 ft

Frequently Asked Questions

What is the hazard classification of Willow Marsh Dam?

Willow Marsh 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 Willow Marsh Dam?

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

What is the primary purpose of Willow Marsh Dam?

Willow Marsh 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 Willow Marsh Dam?

Willow Marsh Dam has a dam height of 10 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 Willow Marsh Dam last inspected?

Willow Marsh Dam was last inspected on January 1, 1990. 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.