Illinois Route 71
…new route as US 30 was rerouted through Twelvemile Corner. It traveled from IL 29 near Bureau Junction to IL 23 at Ottawa. Before that, it was part of Illinois Route 89 as well as Illinois Route 7A, and Illinois Route 89A. In 1939, a ferry that crossed the Illinois River was replaced by a truss bridge. In 1942, IL 71…