Construction of the Folsom Dam auxiliary spillway continues here April 5, 2012, as part of the Folsom Dam Joint Federal Project between the U.S. Army Corps of Engineers Sacramento District, U.S. Bureau of Reclamation, state of California and the Sacramento Area Flood Control Agency to reduce flood risk for the Sacramento area. The spillway will allow for slower and safer water releases from Folsom Lake into the American River during high water events.