The IND Crosstown Line or Brooklyn–Queens Crosstown Line is a rapid transit line of the B Division of the New York City Subway in Brooklyn and Queens, New York City, United States. It provides crosstown service between western Brooklyn and northwestern Queens and is the only subway line that does not carry trains to and from Manhattan.

Extent and service

The following services use part or all of the IND Crosstown Line, whose services' bullets are colored lime green:

IND Crosstown Line

The only service to use the Crosstown Line is the . The line north of Court Square has not been in regular use since 2010.

IND Crosstown Line

The north end of the Crosstown Line is a flying junction with the IND Queens Boulevard Line and 60th Street Tunnel Connection just south of Queens Plaza. The line then travels south as a two-track line, except for a center relay track south of Court Square. At the turn from Marcy Avenue to Lafayette Avenue, two center tracks appear, merging into one after crossovers to the main tracks. These tracks were to be used for a split to another line in a 1931 expansion plan. This center track continues through Bedford–Nostrand Avenues and then ends with crossovers to the main tracks, but space remains in the center through Classon Avenue for the third track.

IND Crosstown Line

At Hoyt–Schermerhorn Streets, the Crosstown Line passes through the middle of the four-track IND Fulton Street Line. Cross-platform interchange is available between the lines, but no track connections exist. After Hoyt–Schermerhorn Streets, the line turns south and ends as a merge into the local tracks of the IND Culver Line, just south of the split of that line into local and express tracks.

History

Development and 20th century

Plans for a crosstown subway line were floated as early as 1912. In 1923, a plan for such a line, to be operated by the Brooklyn Rapid Transit Company (BRT) from the Queensboro Bridge under Jackson Avenue, Manhattan Avenue, Roebling Street, Bedford Avenue, and Hancock Street to Franklin Avenue at the north end of the BMT Franklin Avenue Line, was adopted by the city. However, the following year, Mayor Hylan announced his opposition to it. In addition, residents of central Brooklyn, which was already heavily developed, opposed an elevated line because of noise and aesthetic concerns, but the BRT would not build a subway because an elevated was the cheapest option.

Eventually, the line was moved and incorporated into the city's Independent Subway System (IND). The junction with the IND Queens Boulevard Line in Long Island City was originally supposed to have a second wye, with service from Manhattan via the 53rd Street Tunnel planned to feed into the Crosstown Line. This would have been part of a loop service between the Crosstown and Eighth Avenue Lines.

The first contract to build the Crosstown Line, for a section north of Nassau Avenue in Brooklyn, was awarded in 1928. The portion of the line crossing Newtown Creek between Brooklyn and Queens, now known as the Greenpoint Tubes, was built without the use of a tunneling shield or compressed air, contrary to the convention of the time. The tunnel was bored through solid rock, crossing under the East River Tunnels of the Long Island Rail Road and the IRT Flushing Line, then lined with concrete.

On August 19, 1933, the line was opened north of Nassau Avenue, and the GG began operation to Queens Plaza. The entire Crosstown Line was completed and connected to the IND Culver Line on July 1, 1937, whereupon the GG was extended in both directions to Smith–Ninth Streets and Forest Hills–71st Avenue.

In 1946, as part of a $1 billion plan issued by the New York City Board of Transportation, a branch of the IND Crosstown Line was to be built, with the routing via Franklin Avenue and connecting with the BMT Brighton Line. This would have replaced the BMT Franklin Avenue Line.

Service history

Over the years, the termini for the GG (relabeled G in 1985) varied, including being extended to Jamaica–179th Street or cut back to Queens Plaza. On December 16, 2001, a new peak-hour train (replaced in 2010 by the ) running local on the Queens Boulevard Line required the truncation of the G to Long Island City–Court Square during weekdays. G service was extended to Forest Hills–71st Avenue at all other times. But on April 19, 2010, G service was permanently cut back from the Queens Boulevard Line due to budget cuts and closures for repair work.

Service was also extended to Church Avenue several times, the most recent extension being in 2009. During weekend service disruptions on the service between Jay and Bergen Streets, trains were extended beyond Church Avenue to Coney Island.