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.
Interstate 90 in Washington
From the east end of the bridge, I-90 continues onto Mercer Island and travels under the Mercer Island Lid, a landscaped park built atop a curved section of the freeway between West Mercer Way and 76th Avenue Northeast. I-90 emerges in downtown Mercer Island, adjacent to its future light rail station in the freeway median and a current park and ride. The freeway passes under a smaller lid at Luther Burbank Park and leaves the island on the East Channel Bridge, which crosses a smaller arm of Lake Washington into Bellevue. I-90 travels to the south of Enatai and Beaux Arts Village and intersects Bellevue Way, where light rail tracks will turn north away from the freeway, before crossing the Mercer Slough and its wetlands. After crossing under a disused railroad bridge, slated to be part of the Eastside Rail Corridor trail, I-90 and its short set of collector–distributor lanes meet I-405 in a large stack interchange northwest of the Factoria Mall and the headquarters of T-Mobile US. South of the Bellevue College campus in Eastgate, I-90 intersects 142nd Place Southeast using direct ramps from its high-occupancy vehicle (HOV) lanes. Near the former Bellevue Airfield, I-90 turns southeast to run downhill from Cougar Mountain and along the shore of Lake Sammamish towards Issaquah.