Grand Army Plaza (IRT Eastern Parkway Line)

Grand Army Plaza is a local station on the IRT Eastern Parkway Line of the New York City Subway. It is located in Park Slope, Brooklyn, underneath Flatbush Avenue at its northwest intersection with Grand Army Plaza. It is served by the 2 and 3 trains on weekdays, the 4 train at night and on weekends, and the 5 train on weekends.HistoryGrand Army Plaza opened on October 10, 1920 as part of the opening of the IRT Eastern Parkway Line, an extension of the Brooklyn IRT from Atlantic Avenue to Eastern Parkway–Brooklyn Museum. This extension was part of an expansion of the subway system known as the Dual Contracts which built not only IRT lines in Brooklyn but also those for the BMT. The BMT Brighton Line was already in use at the time but used trackage that is now part of the Franklin Avenue Shuttle; the opening of the subway line beneath Flatbush Avenue provided a more direct route to Downtown Brooklyn and, eventually, Manhattan.