 At the small community of River Falls, SR 55 splits from US 84 and heads northward towards McKenzie, where it joins with US 31.Just south of Georgiana, US 31 splits from the route which continues to its terminus at SR 106, which connects with Interstate 65 (I-65).The route is now a four-lane highway from its intersection with US 29 just south of Andalusia northward to its terminus with SR 106 and Interstate 65 near Georgiana.