A subway had been planned since the late 1930s to reach the Loop downtown in a more direct way than the portion of the Logan Square branch where Chicago stood. This subway was originally intended to supplement the old elevated Logan Square branch, but the CTA sought to simplify its routing and saw no need for the old branch's continued existence. The subway opened on February 25, 1951, with a station of its own on Chicago Avenue; the old Chicago station was then closed along with the others on the affected part of the branch. The station and its trackage remained in non-revenue service until it was demolished and the property sold off in 1964. A commercial building built by the CRT across the street from the station survives, however, and has a low profile that marks where the "L" once passed above it.
