Louisiana State Route 7 the Morganza Spillway in the same way that LA 1 was split in half with the opening of the Bonnet Carre Spillway. LA 7 followed the railroad to Livonia, where it met LA 1 and the two were paired to Port Allen. After crossing the Mississippi River in Port Allen, LA 1 turned to the south in Baton Rouge, while LA 7 picked up US 61 and US 190. US 61 split from LA 7 at a traffic circle, with LA 7 carrying US 190 through the Florida Parishes. US 190 was split from LA 7 in Hammond, where LA
67th Indiana Infantry Regiment 10-May 22. Advance from Franklin to Alexandria March 14–26. Battle of Sabine Cross Roads April 8. Monett's Ferry, Cane River Crossing, April 23. Constructing dam at Alexandria April 30-May 10. Retreat to Morganza May 13–20. At Morganza and Baton Rouge until August. Operations in Mobile Bay against Forts Gaines and Morgan August 2–23. Siege and surrender of Fort Gaines August 3–8. Capture of Fort Morgan August 23. Duty at Morganza until December. Expedition to mouth of White River November 12–20. The regiment lost a total of 249 men during service; 1 officer and 52 enlisted men killed or mortally wounded,