This CTA sub-station on Franklin between Van Buren and Jackson sat
underneath the tracks for the defunct
Wells Street Terminal. The terminal
was completed in 1904 as the Fifth Street Terminal and a 1926 expansion
included the construction of this substation. After a operational reorganization
when the CTA took over operation in 1947, stub terminals like this became
obsolete and the terminal was demolished in 1955. However, the substation
remains in operation.