Plum Creek 4-B is a vital flood risk reduction structure located in Pawnee, Nebraska, designed by USDA NRCS and completed in 1963. This earth dam stands at a height of 31 feet and stretches 654 feet in length, providing a storage capacity of 188 acre-feet for the protection of surrounding areas. The dam is under the regulatory oversight of the Nebraska Department of Natural Resources, ensuring that it is regularly inspected and enforced for safety measures.

With a low hazard potential and satisfactory condition assessment, Plum Creek 4-B plays a crucial role in managing flood risks along the TR-PLUM CREEK stream. Its primary purpose is flood risk reduction, serving the local community in Liberty by mitigating potential damages from high water levels during heavy rainfall events. The dam's location in NWS21T2R9E highlights its strategic placement to effectively protect the area's 0.7 square miles of drainage area from potential flooding, with a maximum discharge capacity of 454 cubic feet per second.

As a key infrastructure managed by local government authorities, Plum Creek 4-B exemplifies the collaborative efforts between state and federal agencies in ensuring the safety and resilience of water resources in Nebraska. The dam's satisfactory condition, regular inspections, and low hazard potential underscore its importance in safeguarding the community and environment from the impacts of extreme weather events, making it a crucial asset in the region's water resource and climate resilience efforts.