The Broadway Bridge is a vertical-lift bridge across the Harlem River Ship Canal in the borough of Manhattan in New York City. It connects the neighborhoods of Inwood on Manhattan Island and Marble Hill on the mainland. The bridge consists of two decks. The lower deck carries Broadway, which is designated as U.S. Route 9 at this location. The upper deck carries the New York City Subway's IRT Broadway–Seventh Avenue Line, serving the . The site was previously occupied by two successive swing bridges. The first, known as the Harlem Ship Canal Bridge, was built between 1893 and 1895 to cross the canal, which had been constructed to bypass a meandering alignment of the Spuyten Duyvil Creek. By the first decade of the 20th century, the construction of the city's first subway line had made the original bridge obsolete, and a double-decker span called the 225th Street Bridge was built to accommodate the subway line above highway traffic. Between 1905 and 1906, the second bridge was installed, and the first bridge was relocated southward on the Harlem River, becoming the University Heights Bridge. The current bridge was constructed between 1957 and 1962 to replace the second span. It contains a navigable channel wide. The bridge provides of vertical clearance when it is in the open position and of vertical clearance in the closed position. Description The Broadway Bridge is a double-deck vertical-lift bridge crossing the Harlem River Ship Canal in the New York City borough of Manhattan. It carries Broadway, also known as U.S. Route 9, on the lower level and three New York City Subway tracks on the upper level. Although the bridge serves as a route for traffic between Manhattan and the Bronx, it is entirely in Manhattan. The southern end of the bridge is in Inwood, on Manhattan Island, while the northern end is in Marble Hill, on the mainland United States. The bridge also passes over the Metro-North Railroad's Hudson Line on its northern end. The lower level is used by the local bus routes, operated by MTA New York City Transit, and the express bus route operated by the MTA Bus Company. The subway tracks carry the Broadway–Seventh Avenue Line (). Immediately to the north of the bridge along this line is the Marble Hill–225th Street station. In 2016, the New York City Department of Transportation, which operates and maintains the bridge, reported an average