South Fork 3-4 is a dam located in Pawnee, Nebraska, with a primary purpose of flood risk reduction. Constructed in 1981 by the USDA NRCS, this earth dam stands at a height of 27 feet and has a storage capacity of 30 acre-feet. It is situated along the TR-NEGRO BRANCH CREEK, within the jurisdiction of the Nebraska Department of Natural Resources, and is regulated, permitted, inspected, and enforced by the state.

With a low hazard potential and a satisfactory condition assessment as of 2017, South Fork 3-4 plays a crucial role in managing water resources and mitigating flood risks in the region. The dam's design and construction by the Natural Resources Conservation Service reflect a commitment to sustainable water management practices. Regular inspections ensure its operational readiness, while the dam's location in a rural area underscores its importance for local government and community resilience.

Overall, South Fork 3-4 serves as a vital infrastructure for flood control and water resource management in Pawnee, Nebraska. Its strategic placement along TR-NEGRO BRANCH CREEK, coupled with its state-regulated status and low hazard potential, highlights the importance of proactive dam maintenance and monitoring. As climate change impacts intensify, structures like South Fork 3-4 will play an increasingly critical role in safeguarding communities and ecosystems from the adverse effects of extreme weather events.