20th Avenue (BMT Sea Beach Line)

20th Avenue is a local station on the BMT Sea Beach Line of the New York City Subway, located in Brooklyn on 20th Avenue between 63rd and 64th Streets. It is served by the N train at all times, as well as some W trains during rush hours.Station layoutThis open-cut station opened on June 22, 1915. It has four tracks and two side platforms, but the two center express tracks are not normally used. The Coney Island-bound track has been disconnected from the line and the Manhattan-bound track is signaled for trains in both directions. Both platforms are carved within the Earth's crust and made of concrete. They have beige walls and blue-green columns and the station signs are in the standard black plates in white lettering. There are also some non-working old lights and 1960s-era benches.By September 2013, the Coney Island-bound tracks had been replaced with a new trackbed and rubber board protection. From January 18, 2016 to May 22, 2017, the Manhattan-bound platform at this station was closed for renovations. The Coney Island-bound platforms closed on July 31, 2017, with an expected reopening in Fall 2018.ExitThis station has one entrance/exit towards the east end. Two staircases from each platform go up to an enclosed concrete crossover before a set of doors lead to the waiting area of the stucco and tile station house. Outside the turnstile bank, there is a token booth and a set of doors leading to the east side of the 20th Avenue overpass/tunnel above the platforms and tracks.