Little Walnut Creek Conservancy District Structure #4

About Little Walnut Creek Conservancy District Structure #4

The primary purpose of Little Walnut Creek Conservancy District Structure #4 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Little Walnut Creek Conservancy District (local government). It impounds the Owl Creek near Reelsville.

The dam stands 66 feet tall and stretches 1,230 feet across, creates a reservoir covering 300 acres, has a maximum storage capacity of 15,844 acre-feet, and collects water from a drainage area of 15 square miles. Completed in 1976, the structure is 50 years old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 04/16/2020.

At 66 feet, this dam is taller than 96% of all dams in the United States.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Indiana dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.