Until 2011 , LA 10 followed the current business route through New Roads . It then crossed the present alignment north of town and followed what is now LA 420 and LA 981 to the former ferry landing opposite St. Francisville . After crossing the river by ferry , LA 10 continued on Ferdinand Street through St. Francisville to the present junction of US 61 and LA 10 . The John James Audubon Bridge across the Mississippi River was constructed between May 2006 and February 2012 at a location downriver from the toll ferry service . In May 2011 , the bridge was opened to traffic early when high water during the 2011 Mississippi River floods caused ferry operations to be suspended . The New Roads – St. Francisville Ferry was permanently discontinued with the opening of the bridge
2011 Mississippi River floods
2011 Mississippi River floods
Louisiana Highway 10