The expressway begins at the western portal of the Queens–Midtown Tunnel in the Murray Hill section of Manhattan. The route heads eastward, passing under FDR Drive and the East River as it proceeds through the Triborough Bridge and Tunnel Authority-maintained tunnel to Queens. Once on Long Island, the highway passes through the tunnel's former toll plaza and becomes known as the Queens–Midtown Expressway as it travels through the western portion of the borough. A mile after entering Queens, I-495 meets I-278 (the Brooklyn–Queens Expressway) at exit 17. It continues to the Rego Park neighborhood, where it connects to New York State Route 25 (NY 25, named Queens Boulevard) and becomes the Horace Harding Expressway. I-495 heads northeast through Corona to Flushing Meadows–Corona Park, intersecting both the Grand Central Parkway and the Van Wyck Expressway (I-678) within the park limits. Because the interchanges in this area are close together, the highway employs two sets of collector/distributor roads through this area: one between 69th and 99th Streets, and one between the Grand Central Parkway and I-678.