The original station closed in 1958 as the new replacement station was built as a part of the Congress Line in the median of the Congress Expressway which replaced the Garfield Park branch and the Metropolitan Main Line that were located along an alley in the right of way that is now on the present Eisenhower Expressway.

The Peoria Street station house was constructed in 1964,[2] centered not over the platform, but over the median to accommodate the anticipated future high-level subway line to run from there, under Clinton Street and the abandoned Jackson Boulevard streetcar tunnel under the river, to Grant Park.

[3] The station house's position and the two extra portals east of Halsted Street[4] were all that came of that plan.

Non-electrified tracks were later added in the empty space in the northern portion of the median in order to stage materials and work cars for tunnel repair and maintenance.

The station house at Morgan Street has a large enclosed waiting room, with electronic signage that alerts passengers when trains are approaching the platform below.