Special routes of U.S. Route 80
A total of ten special routes of U.S. Route 80 exist or did exist in the past. Arizona Yuma business route U.S. Route 80 Business ran from Winterhaven, California, crossed the 1916 Ocean to Ocean Bridge over the Colorado River into Arizona and met up with mainline US 80 again in Yuma. Prior to 1957, this was the mainline route of US 80. The Ocean to Ocean Bridge is still open to traffic as a one lane bridge with traffic lights at either end. Phoenix alternate routes The city of Phoenix had at least two alternate routes of US 80 19th Street alternate route U.S. Route 80 Alternate (US 80 Alt.) was an alternate route of US 80 paralleling the main route in southwestern Phoenix. US 80 Alt. began at US 80 at 19th Avenue and Buckeye Road, traveling north to Van Buren Street, where it turned right before terminating at US 80 at the intersection of 17th Avenue and Van Buren. The highway appeared on a 1937 Map of Phoenix within a set of general highway maps produced by the State of Arizona depicting Maricopa County. By the time the 1948 state highway map had been published, US 80