Expect heavy traffic congestion I-10 westbound to La. 1. Expect heavy traffic congestion I-10 westbound to La. 1. Advocate story May 13, 2014 Comments There is heavy congestion on Interstate 10 westbound through Baton Rouge past the La. 1 exit as emergency work is being done on La. 1 southbound at the Intracoastal Bridge, State Police report. Motorists should expect only the left lane open on La. 1 to I-10 until 5 a.m., Wednesday, to accommodate the road work. State Police said.