October 18, 1986

The Cotter Bridge (officially named the R. M. Ruthven Bridge) was dedicated as a National Historic Civil Engineering Landmark. It was placed on the National Register of Historic Places in 1990. A four-lane bridge that was opened north of Cotter (Baxter County) for U.S. Highway 62/412 was supposed to replace the Cotter Bridge, but local protests saved it. It was renovated and reopened in 2004. Completed in 1930, the bridge is located near Cotter on the business route of U.S. Highway 62 and crosses the White River between Baxter and Marion counties. It is recognizable for its Rainbow Arches.