Morganza, Louisiana 1864 of Federal troops in Morganza under General Nathaniel P. Banks, recently defeated in the Battle of Mansfield in DeSoto Parish and abandoning the Red River Campaign. According to Winters, Located at the lower end of a sharp bend of the Mississippi River, Morganza has been subjected to flooding by the great river a number of times. Levee breaches or "crevasses" occurred at Morganza and Grand Levee just downriver in 1850, 1865, 1867, and 1890. The Morganza Spillway, a major flood diversion project of the U.S. Army Corps of Engineers, is located immediately north of the town. Construction on this
Morganza Spillway 2011 event) had been opened by the Corps of Engineers. The Corps estimated the flow rate at . However, on May 25, new estimates from the U.S. Geologic Survey (USGS) described a much higher rate of , resulting in the closure of 3 bays by May 26, and additional closures by May 29, bringing the total to 11 bays with an estimated diversion rate of . The Corps continued to evaluate the flow and close additional bays as appropriate. By June 6, the number of open gates had been reduced to seven, and by June 8, only two gates were