The station also serves as the inbound terminal for the SEPTA subway-surface trolley lines when services are diverted from the Market Street tunnels –– on Mondays from 12:00 a.m. to 5:00 a.m. and during any other unforeseen circumstances.

[7] The tunnel from 23rd to 32nd streets was completed by 1933, but construction on the remaining segment was put on hiatus due to the Great Depression and World War II.

[7] The PRT went bankrupt in 1939 and was reorganized as the PTC,[8] which began building the rest of the tunnel in 1947.

Two elevators were installed, one for each platform, each of the four entrance stairwells were covered with artistic screens, and underground lighting and tiles were replaced.

Media related to 40th Street (SEPTA Market–Frankford Line station) at Wikimedia Commons