Dejonge South Dam, located in Richardson County, Nebraska, was completed in 2005 by the USDA NRCS with a primary purpose of flood risk reduction along the TR-Kirkham Creek. This private earth dam stands at a height of 26 feet and stretches 620 feet in length, providing a maximum storage capacity of 64 acre-feet and a normal storage of 8 acre-feet. Despite its low hazard potential, the dam's condition was assessed as satisfactory during its last inspection in May 2016.

Managed by the Nebraska Department of Natural Resources (DNR) and subject to state regulations, Dejonge South Dam plays a crucial role in mitigating potential flooding in the area. With a drainage area of 0.5 square miles and a maximum discharge capacity of 285 cubic feet per second, the dam serves as a vital infrastructure for ensuring the safety and protection of nearby communities. While the dam has not been modified in recent years, its satisfactory condition and low hazard potential signify its effectiveness in flood risk reduction.

Situated in the Omaha District and under the jurisdiction of the state of Nebraska, Dejonge South Dam demonstrates a commitment to ensuring public safety and environmental protection. With its stone core and soil foundation, the dam exemplifies sound engineering practices in its design and construction. As climate change continues to pose challenges in water resource management, dams like Dejonge South play a crucial role in safeguarding communities against the threat of flooding, highlighting the importance of sustainable infrastructure for a changing climate.