The Red River Bridge War was a boundary conflict between the U.S. states of Oklahoma and Texas over an existing toll bridge and a new free bridge crossing the Red River. The Red River Bridge Company, a private firm owned by Benjamin Colbert, had been operating a toll bridge that carried U.S. Route 69 and U.S. Route 75 between Colbert, Oklahoma, and Denison, Texas. In 1931, Texas and Oklahoma jointly built a new, free span northwest of the existing toll bridge.