Langsjoen Waterfowl Development, located in Kandiyohi, Minnesota, is a private fish and wildlife pond designed by the USDA NRCS in 1970. This Earth dam, standing at a height of 5.5 feet with a structural height of 9 feet, serves multiple purposes including providing a habitat for waterfowl and fish. With a storage capacity of 960 acre-feet and a surface area of 80 acres, this pond is situated on TR-Mud Creek and covers a drainage area of 2.27 square miles.

Despite being unregulated by the state, Langsjoen Waterfowl Development has a low hazard potential and a moderate risk assessment rating. The dam features an uncontrolled spillway with a width of 50 feet and an outlet gate also uncontrolled. The site's risk management measures and emergency preparedness plans are not rated, reflecting the need for further assessment and development. Overall, Langsjoen Waterfowl Development stands as a vital conservation area within the Omaha District, providing essential habitat for wildlife and supporting the local ecosystem in Sunburg, Minnesota.