The Cedar Street Subway was built by the Public Service Corporation as an entrance to the lower level of the Newark Public Service Terminal. Starting at street level at Washington Street, it runs down a ramp into a short tunnel extending one block under Cedar Street and across Broad Street.
The subway was originally used by streetcars, and later by bus routes. It was closed in 1966. Since the demolition of the Public Service Terminal in 1981, it has ended at a wall under Broad Street.