Interstate 59 (I-59) is an Interstate Highway in the southern United States. Its southern terminus is near Slidell, Louisiana, a northeastern suburb of New Orleans, at its interchange with I-10 and I-12, and its northern terminus is at Wildwood, Georgia, at its interchange with I-24.The highway's major purpose is to connect Chattanooga, Tennessee, and points north, with New Orleans via Birmingham, Alabama. Along its entire route, I-59 is parallel to U.S. Route 11 (US 11).