The New York State Thruway (officially the Governor Thomas E. Dewey Thruway) is a limite-access toll highway in the U.S. state of New York. Built in the 1950s by the State of New York in order to connect the major cities of New York, it is the longest toll road in the United States, with the 496.00 mile (798.23 km) mainline extending from the Pennsylvania/New York State border in the west to Albany in the east, and the New York City borderline to the south. In 1958 it was incorporated into the Interstate Highway System as portions of Interstate 87, Interstate 287, Interstate 95, Interstate 90, Interstate 84, and Interstate 190. It is operated by the New York State Thruway Authority (NYSTA).