Long Branch P-4a is a local government-owned dam located in Pawnee, Nebraska, designed by USDA NRCS and regulated by the Nebraska Department of Natural Resources. Completed in 1984, this earth dam stands at a height of 27 feet and serves multiple purposes including flood risk reduction. With a normal storage capacity of 34 acre-feet and a drainage area of 0.7 square miles, Long Branch P-4a provides essential water resource management for the surrounding area.

This dam, situated on the TR-Kirkham Creek, has a low hazard potential and is deemed to be in satisfactory condition as of the last assessment in June 2016. With a structural height of 31 feet and a length of 994 feet, Long Branch P-4a plays a crucial role in mitigating flood risks and maintaining water storage in the region. While it currently does not have an Emergency Action Plan (EAP) in place, the dam undergoes inspections every 5 years to ensure its continued safety and functionality.

Overall, Long Branch P-4a serves as a vital infrastructure for water resource management in Pawnee, Nebraska. With its earth dam construction and stone core, this structure contributes to flood risk reduction and water storage, supporting the local ecosystem and community. As climate change impacts water resources, the role of dams like Long Branch P-4a becomes increasingly significant in ensuring sustainable water management practices for the future.