37th Street (SEPTA Station)

37th Street/Spruce Street/Woodland Avenue is a SEPTA Subway-Surface Lines trolley station. It is the last station in the tunnel before the 40th Street Subway Portal and carries Subway-Surface Trolley Routes 11, 13, 34, & 36. The entrance to go down into the eastbound side of the station is on the campus of the University of Pennsylvania and the entrance to go down into the westbound side of the station is on Spruce Street. The two stations are off set and are not on the same length of the track. Trolleys serving this station go eastbound to Center City Philadelphia and Westbound to the Philadelphia neighborhoods of Eastwick and Angora and the Delaware County suburbs of Yeadon and Darby. The reason why the station platforms are off set is because during construction of the subway station the above intersections was Spruce & 37th Streets at Woodland Avenue with all three streets crossing at a five points intersection. Upon entering the subway, 37th Street's westbound platform is passed first, the exit/entrance is built on north side of Spruce Street, the eastbound couldn't be on Spruce Street because it would have place the subway exiting stairs in the middle of Spruce Street, so the eastbound platform exit/entrance was place on the farside of Woodland Avenue (now Woodland Walk).

In October 2006, Penn's class of 1956 donated a new entrance for the Eastbound entrance of the station. The entrance is a replica of the Peter Witt trolleys (manufactured by J. G. Brill Company from 1923–26 for Philadelphia) that served the university students prior to 1956. The trolleys brought commuting students to the campus as well as to Center City. The trolleys were operated by the Philadelphia Transportation Company and Routes 11, 34 and 37 ran through the Penn campus on Woodland Avenue and Locust Streets for nearly 65 years. In 1956, the trolley route was buried to enable the university to unify its campus. Woodland Avenue and Locust Street became pedestrian walkways. The 2006-built replica was made by the Gomaco Trolley Company.