Chokio Detention, also known as Clark Lakebed, is a flood risk reduction structure located in Chokio, Minnesota. Owned and regulated by the local government, this earth dam was completed in 2001 by WSN ENG and is designed to mitigate flooding along Muddy Creek. With a dam height of 17 feet and a length of 1350 feet, Chokio Detention has a storage capacity of 2500 acre-feet and serves a drainage area of 12.9 square miles.

The dam's primary purpose is flood risk reduction, and it is classified as a low hazard potential structure with a satisfactory condition assessment. Despite being uncontrolled, the spillway has a width of 28 feet to handle a maximum discharge of 3600 cubic feet per second. The structure's normal storage capacity is 94 acre-feet, with a surface area of 109 acres. Chokio Detention is inspected every 8 years, with the last assessment conducted in August 2017, meeting regulatory standards set by the Minnesota Department of Natural Resources.

Overall, Chokio Detention plays a crucial role in managing flood risks in the region, protecting surrounding areas from potential inundation. With its strategic location and design features, this earth dam stands as a testament to effective water resource management and climate resilience efforts in Stevens County, Minnesota.