US Route 60 officially entered California in 1931 following the purchase of the Colorado River Bridge near Blythe. US Route 60 was truncated to US Route 95 in Blythe in October 1965 as the Interstates of California were being constructed. Following the completion of Interstate 10 in California, the final removal of US Route 60 in the state was overlooked. This oversite allowed US Route 60 to officially terminate in Blythe at US Route 95 on AASHTO logs until 1982. Featured as the blog cover photo is the original Colorado River Bridge near Blythe as it was upon opening in 1928.
https://www.gribblenation.org/2023/10/the-final-stand-of-us-route-60-in.html?m=1
ISTR that someone had a picture of a To US Rte 60 guide sign near Desert Hot Springs that persisted until relatively lately (say, 20 or 30 years ago).
US 60 may have been truncated to Brenda Jct., AZ in 1969 (or 1982 officially), but it still goes to the Arizona/California border based on the mileage of the exit numbers in Arizona.
Quote from: The Ghostbuster on October 21, 2023, 05:54:06 PM
US 60 may have been truncated to Brenda Jct., AZ in 1969 (or 1982 officially), but it still goes to the Arizona/California border based on the mileage of the exit numbers in Arizona.
This isn't an entirely uncommon practice to just leave the mile markers as is when part of a route is decommissioned going away from its original 0 milepost. It saves a lot of administrative paperwork as well as the costs of changing the signage.
Arizona starts its mile markers as if they began at its western border. US 60's mile markers would be the same had it always began where it does now.