Union Street is a local station on the BMT Fourth Avenue Line of the New York City Subway. It is located at the corner of Fourth Avenue and Union Street in Brooklyn, New York City, serving the communities of Park Slope, Gowanus and Carroll Gardens. It is served by the R train at all times. The D and N trains also stop here during late nights, and a few rush-hour W trains stop here in the peak direction.HistoryUnion Street opened on June 22, 1915 as part of the initial portion of the BMT Fourth Avenue Line to 59th Street.The station was renovated twice. The first time was in the late 1970s, which including repairing the staircases and platform edges, replacing the incandescent lighting with fluorescent lighting, and replacing the original platform wall tiles and mosaic signs with cinderblock tiles that are colored white except for where the platform signs (in the standard white letting and black background) are. Here, they are colored gray.
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