The main mainland rail connection to New York City and Long Island from the national rail network is via tracks on the east bank of the Hudson. CSX Transportation freight trains from the west cross the Hudson on the Alfred H. Smith Memorial Bridge, 140 miles (230 km) to the north at Selkirk. From there to Poughkeepsie the two-track line, known as the Hudson Subdivision, is owned by CSX but is leased to Amtrak. Amtrak runs 28 trains a day on this segment. South of Poughkeepsie, the Hudson Line widens, first to three and then four tracks, becomes electrified with third rail. This section is owned by Metro North Commuter Railroad. CSX runs four road freight trains a day on this line with an average of 75 cars per train, the equivalent of 900 trucks.
