California station (CTA Blue Line)

California station opened on May 25, 1895, as part of the Metropolitan West Side Elevated's Logan Square branch.

After stripping the interior, and removing the joist-supported wooden floor, the former crawl space was filled with gravel and covered by a concrete slab, the surface of which was patterned to imitate cobblestone.

The repositioned agent box and farecard vending machines substantially increased the pedestrian traffic efficiency through the station house.

[citation needed] The station closed during September and October 2014 for major repairs, but the renovation plans did not include retrofitting the stop so that the elevated platform would be accessible to disabled passengers.

An extension route from Lawrence to Imlay, near the Forest Preserve, opened on December 11, 1914, and the lines were through-routed on October 1, 1927.

Streetcars were typically one car each in Chicago; two-car multiple-unit control trains ran on Milwaukee Avenue between March 2, 1925 and May 5, 1929.