additional four GE P40DC locomotives from New Jersey Transit in 2015. Originally built for Amtrak in 1993, these locomotives had been used by NJ Transit on the short-lived Atlantic City Express Service. In January 2018, ConnDOT awarded a contract to Amtrak to overhaul all twelve P40DC locomotives at the Beech Grove Shops. The first unit was completed in early 2021. The GP40-2H locomotives were sent to NRE for rebuilding in 2017 and 2018, followed by use on the new Hartford Line service. Stations All stations are accessible. Service west of New Haven has been suspended since 2020. References External links Passenger rail transportation in Connecticut Commuter rail in the United States Connecticut railroads Transportation in New Haven County, Connecticut Transportation in Middlesex County, Connecticut Transportation in New London County, Connecticut Railway services introduced in 1990 Standard gauge railways in the United States Northeast Corridor