tiles were all removed during the 2017 renovation, and were replaced with blue rectangular tiling. The 2017 artwork at this station called Strata consists of a set of tile mosaics by Katy Fischer, which commemorate the Native American, Dutch, and English colonial histories of the area. Provisions The Fourth Avenue Line south of 59th Street, including the Bay Ridge Avenue and 77th Street stations, was built as a two-track structure under the west side of Fourth Avenue with plans for two future tracks on the east side of the street. The bridge across the Long Island Rail Road's Bay Ridge Branch to the north of this station, but under Fourth Avenue, was built for four tracks, but only the space for the two west tracks were ever used. The tunnel leading up to each side of the bridge was built for two tracks only. Daylight can briefly be seen from the bridge. The station is designed to allow the northbound platform to become the Manhattan-bound express trackway if the two additional tracks were built. To facilitate the conversion, the northbound platform is mostly columnless and is wider than the southbound platform. Furthermore, there is space underneath the platform for the trackway. Exits The station's mezzanine is above the platforms with two staircases leading to each. From the mezzanine outside of fare control, two staircases lead to either southern corners of Bay Ridge and Fourth Avenues. The southbound platform has an additional entrance near its north end. Prior to the 2017 renovation, the entrance was exit-only, and consisted of one high entry-exit turnstile on the platform. Two platform level turnstiles lead to a small landing, where a double-flight staircase goes up to the northwest corner of 68th Street and Fourth Avenue. References External links Station Reporter — R Train The Subway Nut — Bay Ridge Avenue Pictures Bay Ridge Avenue entrance from Google Maps Street View 68th Street exit only stairs from Google Maps Street View Platforms from Google Maps Street View BMT Fourth Avenue Line stations New York City Subway stations in Brooklyn Railway stations in the United States opened in 1916 Bay Ridge, Brooklyn 1916 establishments in New York City