U.S. Route 90
U.S. Route 90 (US 90) is an east–west United States highway. Despite the "0" in its route number, US 90 never was a full coast-to-coast route; it has always ended at Van Horn, Texas with the exception of a short-lived northward extension to US 62/US 180 near Pine Springs, Texas which lasted less than a year, and the signs on that segment were changed to Texas State Highway 54, traveling from Interstate 10 (I-10) at exit 140A and heading to its northern terminus at US 62/US 180.
Special routes of U.S. Route 90
U.S. Route 90 Alternate in Tallahassee was a former segment of US 90 from 1926–1949 that existed only in 1950 as an alternate route. It ran from Tallahassee to Quincy along what is today US 27 (Hidden State Road 63) and State Road 12. The route was co-signed with US 27 from Tallahassee to Havana.