Illinois Route 394
| Calumet Expressway | ||||
IL 394 highlighted in red | ||||
| Route information | ||||
| Maintained by IDOT | ||||
| Length | 14.63 mi (23.54 km) | |||
| Existed | 1965–present | |||
| History | Signed as IL 1 1957–1964 | |||
| Major junctions | ||||
| South end | IL 1 in Crete | |||
| US 30 in Ford Heights | ||||
| North end | I-80 Toll / I-94 / I-294 Toll in South Holland | |||
| Location | ||||
| Country | United States | |||
| State | Illinois | |||
| Counties | Will, Cook | |||
| Highway system | ||||
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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). Although not an Interstate Highway, Illinois 394 is an Interstate-standard highway from its junction with Sauk Trail at Sauk Village to its northern terminus at the I-294/I-94/I-80 interchange in South Holland. IL 394 functions as a bypass of IL 1 to the west, of which it was formerly part, and provides access to southern suburbs of Chicago.