The station opened on June 22, 1958 and is almost identical to every other station built in the median of the Eisenhower Expressway, including an island platform, a small station house on Racine's and Loomis's overpass containing only a ticket booth and turnstiles and a long passageway ramp connecting the two.
Racine sits at the base of the Loomis ramp, a double-tracked viaduct that rises from the expressway to join the Douglas Branch north of 18th Street station. Prior to April 28, 2008, the Blue Line split into two branches here. Trains to Forest Park continued west in the Congress Expressway, while the other trains took the Loomis Ramp to the Douglas branch to operate to 54th/Cermak. After April 28, 2008, the Douglas Branch service was discontinued and replaced by the Pink Line. Although the Loomis Ramp no longer is used for revenue service, it remains intact as the only track connection between the Blue Line and the rest of the system, allowing for non-revenue equipment moves.