Seventh Avenue is a station on the BMT Brighton Line of the New York City Subway, located at the intersection of Seventh Avenue, Park Place and Flatbush Avenue in Park Slope and Prospect Heights, Brooklyn. It is served by the Q train at all times and the B train on weekdays. This is one of two stations on the B train named "Seventh Avenue"; the other is Seventh Avenue–53rd Street on the IND Sixth Avenue Line in Manhattan.HistoryAlthough on the BMT Brighton Line, Seventh Avenue was built almost fifty years after the main segment of the line from Prospect Park to Brighton Beach opened in 1878. Prior to its opening, trains on the line used what is now the Franklin Avenue Shuttle and a connection to the elevated BMT Fulton Street Line on their way to the line's terminus at Fulton Ferry in Brooklyn or Park Row in Manhattan.The station is a product of the Dual Contracts, a 1913 group of contracts that provided for the construction of BMT (as well as IRT) underground lines in Manhattan and Queens. The first of these was the BMT Broadway Line which ran from its northern terminus at Times Square–42nd Street to its southern end at Whitehall Street in 1918. The Montague Street Tunnel, which linked Whitehall Street to Prospect Park station and would be the location for Seventh Avenue, opened on August 1, 1920, and moved trains from the elevated Franklin Avenue Line to the new underground line.
