Prado Dam, located in Corona, California, can be seen from a helicopter in this undated aerial photo. The U.S. Army Corps of Engineers Los Angeles District and the Orange County Flood Control District recently signed an amendment to use Bipartisan Budget Act of 2018 funds for select features of the Santa Ana River Mainstem project, which include raising the Prado Dam spillway by 20 feet; completing the lower Norco Bluffs toe protection project, and the Alcoa Phase 2 and River Road dikes; and ongoing mitigation responsibilities associated with the Prado Dam project features.