Powell Street station (often Powell station) is a combined BART and Muni Metro rapid transit station in the Market Street subway. Located under Market Street between 4th Street and 5th Street, it serves the Financial District neighborhood and surrounding areas. The three-level station has a large fare mezzanine level, with separate platform levels for Muni Metro and BART below. The fare mezzanine also connects to the Union Square/Market Street station. The Powell-Mason and Powell-Hyde cable car lines turn around at Powell and Market adjacent to the station and Hallidie Plaza. BART service at the station began on November 5, 1973, followed by Muni Metro service on February 18, 1980. Station layout Like the three other shared Muni/BART stations in the Market Street subway, Powell has three underground levels. The first level is a fare mezzanine, with two Muni paid areas and two BART paid areas. The second level has a single island platform for Muni Metro, and the third level has an island platform for BART. The station has eight street entrances along its length, plus two underground entrances to the fare mezzanine from the concourse level of the Westfield San Francisco Centre mall. A closed passageway leads from the northeast end of the station under Market Street partway to Third Street; this was planned to be a direct entrance from the Yerba Buena Center development, but was never completed. The Central Subway passes under the Powell station complex at Stockton and Fourth streets, with Union Square/Market Street station located north of Powell station under Stockton Street. The stations are connected outside of Muni fare control by a passageway. The existing Stockton/Ellis entrance to Powell Street station was closed for a planned five years on April 24, 2013, so that it could be modified to include the connection to the new station. The closure was originally planned for the previous August, but delayed after Muni determined it was not yet needed. Muni purchased the entrance from BART for one dollar. Central Subway service began on November 19, 2022, with the Ellis entrance reopened. Following the 2015 addition of a canopy over an escalator at 19th Street Oakland station, which reduced escalator downtime by one-third, BART decided to add canopies to all downtown Oakland and San Francisco entrances. The canopies will protect the escalator from weather damage, improve lighting, allow the escalator to be fully closed off when the station is