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.
Business routes of Interstate 90
Interstate 90 Business is a business loop of Interstate 90 in Wall. It begins at a diamond interchange at exit 109 at Airport Road (signed as West 4th Avenue). Less than one block after the interchange, BL 90 veers off to the right onto South Boulevard (former US 14 and 16), running southeast, while Airport Road turns into West Fourth Avenue after a landing strip and heads towards the famous Wall Drug Store and other local tourist attractions. South Boulevard passes a local high school before becoming a divided highway and crossing the former Chicago and Northwestern Railway line. East of that line, the route is diverted onto two bi-directional frontage roads that once flanked the former US 14/16. At Glen Street BL 90 turns south at the corner of a museum dedicated to the Battle of Wounded Knee, ending one block later at exit 110, which is also shared by the western terminus of South Dakota Highway 240.