(the connection between the BMT West End Line and the South Brooklyn Railway is the other). Clifton Yard The Clifton Yard is the sole yard on the Staten Island Railway, and is located next to the Clifton station. Heavy maintenance of equipment is performed at the Clifton Yard. As there is no connection from the passenger portion of the Staten Island Railway to the mainline U.S. railroad network or the subway, the only remaining R44 subway cars on the Staten Island Railway must be trucked over the Verrazano-Narrows Bridge to Coney Island Yard if they need maintenance that Clifton Yard cannot perform. Additional storage for revenue trains is located adjacent to the Tottenville station at the south end of the line, while maintenance of non-revenue trains is performed at a Maintenance of Way shop near the Tompkinsville station. References External links nycsubway.org—Subway Yards New York City-related lists