Riverdale is a residential neighborhood in the northwest portion of the borough of the Bronx in New York City. Riverdale is about three square miles in area. It is bordered on the north by the city of Yonkers, Westchester County, New York; to the east by Van Cortlandt Park and the Kingsbridge section of the Bronx; to the west by the Hudson River; and to the south by the Harlem River. The subsections of Riverdale are: Spuyten Duyvil / South Riverdale (Riverdale below West 232nd Street) Central Riverdale (The "downtown" of Riverdale - from Manhattan College Parkway to West 232nd Street and from the Henry Hudson Parkway to Riverdale Avenue and Waldo Avenue) Fieldston (Riverdale south and east of the Henry Hudson Parkway, north of Manhattan College Parkway and west of Tibbett Avenue) North Riverdale (Riverdale above West 254th Street. The northern terminal station of the IRT Broadway–Seventh Avenue Line of the New York City Subway is located at the intersection of 242nd Street and Broadway. The tracks and stations are elevated along Broadway in Kingsbridge. Riverdale is accessible from Kingsbridge and from Inwood by city bus lines that run throughout the Riverdale area. Metro-North commuter railroad service is available at the Spuyten Duyvil station, located underneath the Henry Hudson Parkway and alongside the shore of the Harlem River at Edsall Avenue. Metro-North service is also available at the Riverdale station, located between West 254th Street and West 255th Street. The 242nd Street elevated subway station is served by the 1, while the Spuyten Duyvil and Riverdale railroad stations are served by the Hudson Line. Metro-North commuting time from the Spuyten Duyvil station to Grand Central Terminal in Midtown Manhattan is around 22 minutes. Manhattan can also be reached by MTA Bus Company's (formerly Liberty Lines) express routes. By car, Riverdale is commonly reached by the Henry Hudson Parkway (Route 9A), which bisects much of the neighborhood. This major thoroughfare connects it to Manhattan over the Henry Hudson Bridge to the south. One can also drive between Manhattan and Riverdale via the Broadway Bridge, which is on Broadway, by the Harlem River.