High Quality Content by WIKIPEDIA articles! U.S. Route 90 is an east–west United States highway. Despite the "0" in its route number, U.S. 90 never was a full coast-to-coast route; it has always ended at Van Horn, Texas. A short-lived northward extension to U.S. 62/180 near Pine Springs, Texas, lasted less than a year, and the signs on that segment were changed to Texas State Highway 54, running from Interstate Highway 10 at exit 140A and heading to its northern terminus at U.S. 62/180.