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.
U.S. Route 90 in Florida
After leaving Osceola National Forest just west of CR 250A, it passes Olustee Battlefield Historic State Park, and then has another interchage with I-10 at Exit 324, running north of the interstate where it will remain for the duration of its journey. In Sanderson US 90 encounters CR 229, which it has a one-block concurrency with until it reaches CR 127. The road encounders an intersection with Arnold Rhoden Road which leads to a former segment of US 90 that serves as the road to Sanderson Cemetery. US 90 runs parallel to this road as it then crosses a bridge over the CSX Line that was used by the Sunset Limited. East of Margaretta, the road encounters two other local county roads; the southern terminus of CR 139, and then the northern terminus of CR 123. Both roads lose their designations less than five miles from US 90. The Town of Glen St. Mary is where the road is given the name Mount Vernon Avenue, and it crosses CR 125 (Glenn Street), and then becomes a four-lane undivided highway even as it leaves town two-thirds of the way between Hillard Avenue and Wildcat Road. The road crosses what has been designated the "South Prong" of the St. Mary's River, and then enters Macclenny, where the name turns into Macclenny Avenue. The first major intersection in the city is County Road 23A (Lowder Street), but far more important is the intersection with State Road 121 (Sixth Street). Merely a block away it becomes the western terminus of State Road 228, and southern terminus of County Road 23B, both of which are Fifth Street. Beyond the city limits, the road continues along the same trajectory along with the parallel CSX line on the south side until they both cross the Baker-Nassau County Line, where it veers slightly to the northwest.