Arizona State Route 64 a route from Williams to the Grand Canyon. In 1935, the highway was extended to the east from the Grand Canyon to US 89. In 1961, the highway was extended further east from US 89 through Tuba City to the New Mexico state line. In 1965, the portion from Teec Nos Pos was renumbered to SR 504 to match New Mexico, which would be renumbered again in 1987 to US 64. In 1965, the section to the east of US 89 became US 164, and would later be renumbered to US 160 in 1969. Arizona State Route 64 State Route
U.S. Route 80 in Arizona road side businesses and attractions, including many iconic motor hotels and restaurants. US 80 was a particularly long highway, reaching a length of almost within the state of Arizona alone. With the advent of the Interstate Highway System, Interstate 10 and Interstate 8 both replaced US 80 within the state. US 80 was removed from Arizona in 1989; the remainder of it now being State Route 80. In September 2018, the Arizona Department of Transportation designated former segments of the highway as Historic U.S. Route 80. On its journey across Arizona, US 80 made two indirect loops to both Phoenix