Illinois Route 394 (IL 394), also known as the Calumet Expressway, is a 14.6-mile-long (23.5 km) four-lane state highway that travels north from a junction with IL 1 south of Crete to an interchange in South Holland with Interstate 294/Interstate 94/Interstate 80 (I-294/I-94/I-80, Tri-State Tollway/Bishop Ford Freeway; this route is an extension of, but not part of the latter freeway).

In the 1950s, a freeway, then known as the Calumet Expressway, was constructed south of Chicago as an extension of Doty Avenue.

In 1996, the Calumet Expressway was renamed in honor of Bishop Louis Henry Ford, the leader of the Church of God in Christ who had died the previous year.

In the southbound direction, the ramps were rebuilt, with a gentler left-exit curve for I-94 to travel from the Bishop Ford to the Kingery Expressway.

A cloverleaf ramp from eastbound I-80/I-294 was replaced with a flyover, and the merge area where IL 394 terminates was improved.