State station (also called State Street) is an underground Massachusetts Bay Transportation Authority (MBTA) rapid transit station located in downtown Boston, Massachusetts. It is the transfer point between the Orange Line and the Blue Line, and one of four "hub stations" on the MBTA subway system. The Orange Line has two side platforms on two levels, while the Blue Line has two side platforms on a single level. The station is fully accessible. The East Boston Tunnel (predecessor of the modern Blue Line) opened as a streetcar tunnel in 1904, with Devonshire one of its two stations in downtown Boston. The Washington Street Tunnel opened to carry the Main Line (predecessor of the Orange Line) in 1908, with platforms at Milk and State. In 1924, the East Boston Tunnel was converted to use metro rolling stock. The MBTA renamed the lines to the Blue Line and Orange Line in 1965, and renamed both stations to State in 1967. The Orange Line platforms were extended in the 1980s for six-car trains. A second renovation in 2006–2011 extended the Blue Line platforms and made all platforms accessible. Station layout State is unique among Orange Line stations as it was built on two levels to fit under the narrow section of Washington Street while crossing the East Boston Tunnel. The southbound side platform is above the northbound track and furthermore staggered considerably south of the northbound side platform. The southbound platform is connected to the rest of the station by a lengthy pedestrian passageway, originally known as "the speedway". The Blue Line has two side platforms under State Street and the Old State House. The station's headhouses are located between Government Center and the Financial District. State station has six entrances spread out over nearly ; after consolidation and reconstruction by the MBTA, all entrances serve both lines in all directions. One entrance is built into the basement of the Old State House and four into commercial buildings. The northernmost entrance, which is accessed from an unmarked stairwell under 28 State Street on Government Center Plaza, was originally constructed to serve Adams Square but now primarily serves Boston City Hall. Three entrances are fully accessible with elevators to platform level: Old South Meeting House (Washington Street at Milk Street), 53 State Street, and 60 State Street. The other three entrances - Old State House (State Street at Devonshire Street), Devonshire Street at Water