Morganza Spillway emergency use to divert additional water from the Mississippi River into the Morganza floodway, which merges downstream with the Atchafalaya floodway before entering the Gulf. Diversion of water from the Mississippi's main channel has the effect of lowering water level in the Mississippi downstream of the spillway, helping to relieve stress on levees and other flood control structures both upstream and down. Besides controlling flooding in a given event, the system is also designed to prevent the Mississippi River from permanently altering course down the Atchafalaya River, bypassing Baton Rouge and New Orleans. Water that passes the Morganza Spillway first
Morganza, Louisiana of the family's name in Sayreville, New Jersey, and a captain in the Second Regiment of the Middlesex County(N.J.) militia during the Revolutionary War. Evidence indicates he was involved in the transfer of slaves from New Jersey to Louisiana in conflict with New Jersey law. The U.S. Post Office opened in 1847, closed some years later, and reopened in 1899. Members of the Campbell family held the position of postmaster until 1970. The town was not incorporated until 1908. To commemorate the centennial anniversary of the Village of Morganza, U.S. Congressman Rodney Alexander entered the following into the Congressional Record