Elliot City, Louisiana City was abandoned in 1939 when its residents were forced to leave due to the construction of the Morganza Spillway. This area is inside the floodway levee system and was entirely underwater when the floodway gates at the Morganza control structure were opened in 1973 and 2011 to relieve the high water level of the Mississippi River. The area is subject to being flooded if the control structure gates are ever opened again. The Elliot City area is a short distance south, southwest of a now inactive U.S. Army Air Corps bombing range used as a training area for aircraft
U.S. Route 190 the Beauregard Parish Jail, Beauregard Parish Courthouse, and the DeRidder Commercial Historic District. US 190 runs concurrently with US 171 to Ragley, where US 190 parts with US 171 heading east. From Ragley, the two-lane highway heads nearly due east almost parallel to I-10 until Opelousas. US 190 crosses the northern reach of the Atchafalaya Basin near the Morganza Spillway en route to Baton Rouge. From Baton Rouge, US 190 passes, in places divided, through Denham Springs, Albany, Hammond, Robert, Goodbee, Covington, Mandeville, before reaching the eastern terminus at Slidell. The stretch between I-12 south of Covington and the intersection