Sepulveda Dam, also known as Sepulveda Reservoir, is a federal-owned structure located in Los Angeles, California. Completed in 1941, this earth dam stands at 57 feet high and stretches over 15,400 feet along the Los Angeles River. With a primary purpose of flood risk reduction, the dam also serves as a recreational area for the surrounding communities.

A risk assessment conducted by the US Army Corps of Engineers in 2017 identified Sepulveda Dam as having a moderate risk level, primarily due to erosion of the embankment foundation and potential mechanical failure of the spillway gates. The dam poses a high hazard potential, with economic consequences estimated to exceed $12 billion in the event of failure. To mitigate these risks, USACE implements various risk management measures, including close collaboration with state and local emergency managers, regular monitoring and maintenance, and ongoing engagement with the community to enhance preparedness and communication.

Despite the identified risks, Sepulveda Dam continues to be closely monitored and maintained by USACE to ensure its structural integrity and reduce potential threats to the surrounding population. By following stringent safety protocols, conducting emergency exercises, and implementing proactive risk communication strategies, the dam remains a vital asset in safeguarding against flood events in the region.