The Clark Street station is a station on the IRT Broadway–Seventh Avenue Line of the New York City Subway. It is located at Clark Street and Henry Street in Brooklyn Heights, Brooklyn. It is served by the 2 train at all times and the 3 train at all times except late nights. History 20th century On April 15, 1919, the Clark Street Tunnel opened, and this station opened with it, extending West Side Line express trains from Wall Street on the other side of the East River to Atlantic Avenue via a new connection at Borough Hall. The connection doubled the capacity between Manhattan and Brooklyn and eased congestion from the Joralemon Street Tunnel. Direct express service to Times Square was provided to the inhabitants of Brooklyn for the first time as a result. On April 30, 1930, the New York State Transit Commission ordered the installation of a third elevator at the station. This elevator went into service on November 25, 1931. The city government took over the IRT's operations on June 12, 1940. During the 1964–1965 fiscal year, the platforms at Clark Street, along with those at four other stations on the Broadway–Seventh Avenue Line, were lengthened to to accommodate a ten-car train of IRT cars. In 1981, the Metropolitan Transportation Authority (MTA) listed the station among the 69 most deteriorated stations in the subway system. On February 8, 1983, renovations made to the station as part of the MTA's Adopt-A-Station Program were unveiled. The $260,000 cost was evenly split between public and private agencies. Neighborhood maps were added to the station as part of the project. In 1984–1985, construction was completed to rehabilitate the station. The station was chosen for renovation in 1979, and design work was done in early 1982. Artwork was to be contributed to the design. The platform was refinished, new lights and new signs were installed, and new painting was done. The project was projected to cost $1.25 million but went over budget. The construction was projected to begin in January 1984, but it quickly fell behind schedule. Issues with the contractors contributed to the delays. 21st century The elevators were repaired in 2000, necessitating a four-month closure, and again in 2007. In January 2017, Clark Street became the last underground station in the New York City Subway to receive Transit Wireless cell phone service. The MTA announced in 2019 that the station's