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
Unconstructed state routes in Arizona the University of Arizona campus, and the industrial area between the railroad and I-10; an extension to Tucson International Airport. It first appeared on a Tucson map in 1971. Strong community opposition to freeways in Tucson was a major reason for cancellation of the project on April 16, 1982; the Tucson area has long been opposed to the rapid urban sprawl since. Future US Bicycle Routes in Arizona include USBR 66, 70, 79, and 90. Unconstructed state routes in Arizona Below is a list and summary of the unconstructed state highways in the U.S. state of Arizona. Some are currently