A several-hundred-foot section of the easternmost portion of the North Shore Branch was reopened for passenger service to the Richmond County Bank Ballpark, home of the Staten Island Yankees minor-league baseball team, on June 24, 2001; the service was discontinued on June 18, 2010. A new station building at Tompkinsville opened on January 20, 2010, with turnstiles installed to prevent passengers from exiting (free of charge) at Tompkinsville and walking the short distance to the St. George ferry terminal. Current use Passenger service Although the Staten Island Railway originally consisted of three lines, only the north-south Main Line is in passenger service. It has been grade-separated from all roads since the 1960s, but runs more or less at street level for a brief stretch north of Clifton, between the Grasmere and Old Town stations, and from south of the Pleasant Plains station to Tottenville—the end of the line. The terminus at St. George provides a direct connection with the Staten Island Ferry. St. George has twelve tracks, ten of which are in service. Tottenville has a three-track yard to the east of the station, which itself has two tracks and an island platform. Rolling stock consists of modified R44 subway-type cars built in early 1973, added to the end of the R44 order of subway cars for New York City Transit; they were the last cars built by the St. Louis Car Company. Heavy maintenance is performed at NYCT's Clifton Shops, and any work unable to be done at Clifton requires the cars to be trucked over the Verrazzano-Narrows Bridge to the subway's Coney Island Complex in Brooklyn. The right-of-way includes elevated, embankment and open-cut sections, as well as a tunnel near St. George. Before 2007, the Staten Island Railway used Baltimore & Ohio Railroad-style color position light signals dating back to its B&O days. That year, a $72-million project to replace the old signal system was completed. The system was replaced with an FRA-compliant 100 Hz, track-circuit-based automatic train control (ATC) signal system. As part of the project, forty R44 subway cars and four locomotives were modified with onboard cab signaling equipment for ATC bi-directional movement. A new rail control center and backup control center were built as part of the project. The line uses NYC Transit-standard 600 V DC third-rail power. Sally Librera has been the railway's vice-president and chief officer since her appointment in May 2017. The