 In 1926, the Nebraska Bureau of Roads and Bridges began erecting the first state and U.S. Highway markers.Prior to that, signage along highways was non-existent except along the Lincoln Highway where the Automobile Association of California erected red, white and blue enameled steel signs and along the Omaha-Lincoln-Denver highway where local citizens painted route markers on telephone poles.The covered wagon emblazoned on the Nebraska state highway shield was designed by State Engineer Robert Cochran.