Illinois Route 138
IL 138 highlighted in red | ||||
| Route information | ||||
| Maintained by IDOT | ||||
| Length | 14.95 mi (24.06 km) | |||
| Existed | 1942–present | |||
| Major junctions | ||||
| West end | IL 159 in Bunker Hill | |||
| I-55 in White City | ||||
| East end | Illinois Street in Mount Olive | |||
| Location | ||||
| Country | United States | |||
| State | Illinois | |||
| Counties | Macoupin | |||
| Highway system | ||||
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Illinois Route 138 is a state highway in southwestern Illinois. It runs from Illinois Route 159 north of Bunker Hill to the city of Mount Olive at Illinois Street, a former alignment of U.S. Route 66. This is a distance of 14.95 miles (24.06 km).