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US 80 is an east-west United States highway. As the "0" in the route number indicates, it was originally a cross-country route, from the Atlantic to the Pacific. However, the entire segment west of Dallas, Texas has been decommissioned in favor of various Interstate highways and state highways.
As of 2004, the highway's eastern terminus is in Tybee Island, Georgia at the Atlantic Ocean. Its western terminus is at the border of Dallas and Mesquite, Texas at an intersection with Interstate 30.
It originally had its western terminus in San Diego, California.
The highway passes through the following states:
Originally it also passed through New Mexico, Arizona, and California.