elevated station and the opening of the current underground station. The following month, on November 6, the westbound side elevated station closed. The PRT bridge that formerly had carried subway cars and subway–surface trolleys over the river was torn down by June 20, 1956. Nothing remains of the 24th Street station. Instead, the PECO Building, headquarters of PECO Energy division of Exelon, now occupies the site. The station originally served Routes 10, 11, 31, 34, 37 and 38. Route 31 was rerouted out of the tunnel in 1949 and buses replaced trolleys on routes 37 and 38 in 1955. Routes 13 and 36 began serving the station (and the subway–surface tunnel) in 1956. Modernization Turnstiles were constructed on the westbound platform for all-door boarding in the SEPTA Key fare collection system. As such, fares are paid prior to system entry and no fares are collected on trolleys outbound (westbound) from Center City, but still must be paid at the trolley fare box inbound (eastbound) to Center City. Station layout The station has two low-level side platforms, each capable of platforming two trolleys. References External links SEPTA – 22nd Street Station (archived) SEPTA Subway–Surface Trolley Line stations Railway stations in Philadelphia Railway stations in the United States opened in 1955 Railway stations located underground in Pennsylvania 1955 establishments in Pennsylvania