Interstate 78 in New Jersey Interstate 78 in New Jersey Interstate 78 (I-78) is an east–west route stretching from Union Township, Lebanon County, Pennsylvania to New York City. In New Jersey, I-78 is called the Phillipsburg–Newark Expressway and the Newark Bay Extension of the New Jersey Turnpike. The highway runs for in the northern part of the state of New Jersey from the Interstate 78 Toll Bridge over the Delaware River at the Pennsylvania state line in Phillipsburg, Warren County east to the Holland Tunnel under the Hudson River at the New York state line in Jersey City, Hudson County. The Phillipsburg-Newark Expressway portion of
Pennsylvania Station (New York City) the four East River Tunnels, and the single Empire Connection tunnel). It is at the center of the Northeast Corridor, a passenger rail line that connects New York City with Boston, Philadelphia, Washington, D.C., and intermediate points. Intercity trains are operated by Amtrak, which owns the station, while commuter rail services are operated by the Long Island Rail Road (LIRR) and New Jersey Transit. Connections are available within the complex to the New York City Subway, and buses. The old "Hilton Corridor" formerly provided indoor connection with the 34th Street–Herald Square subway station and 33rd Street PATH station. Penn Station