Roads of the Mid-South & West > Highways of the State of Illinois > Double Number U.S. Federal Highways of Illinois > U.S. Federal Route 50, Illinois > U.S. Federal Route 50; St. Clair County, Illinois

U.S. Federal Route 50
St. Clair County

U.S. Federal Route 50 runs east-west across much of the Northern regions of St. Clair County. Near O'Fallon, this highway runs along the interstates into the Metro-East of St. Louis.

U.S. Rt. 50 passes through the following towns in St. Clair County.
Lebanon

O'Fallon

Shiloh
Fairview Heights

Caseyville
East St. Louis

Centreville

Alorton

Sauget

Cahokia

Dupo


U.S. Rt. 50 is multi-plexed in St. Clair County.
Illinois State Route 4, at Lebanon.

Interstate 64, from O'Fallon to Caseyville.

Interstate 255, from Caseyville to the St. Clair/Monroe County Line.

Illinois State Route 3, from Dupo to the St. Clair/Monroe County Line.


U.S. Rt. 50 crosses the following highways in St. Clair County.
Illinois State Route 4, at Lebanon.

Illinois State Route 4, at Lebanon.

Interstate 64, at O'Fallon.
Illinois State Route 158, at O'Fallon.
Illinois State Route 159, at Fairview Hieghts.
Illinois State Route 157, at Caseyville.
Interstate 64, at Caseyville.
Interstate 255, at Caseyville.

Illinois State Route 161, at East St. Louis. (NO INTERCHANGE)
Illinois State Route 15, at Alorton.
Illinois State Route 163, at Alorton. (NO INTERCHANGE)
Illinois State Route 157, at Cahokia.
Illinois State Route 3, at Dupo.


A set of junction markers on EB U.S. Rt. 50/NB IL St Rt 4 in Lebanon.

EB U.S. Rt. 50/NB IL St Rt 4 in Lebanon.

A BGS on EB I-64/U.S. Rt. 50.

EB U.S. Rt. 50/IL St Rt 158 in O'Fallon.

A BGS on NB IL St Rt 158.

A BGS on Old U.S. Rt. 50 in O'Fallon.

WB I-64/U.S. Rt. 50 west of IL St Rt 159.

A BGS on SB IL St Rt 157.

A junction marker on NB IL St Rt 157.

EB I-64/U.S. Rt. 50 near IL St Rt 157 in Caseyville.

WB I-64/U.S. Rt. 50 near I-255.

BGS on SB I-255.

NB I-255/EB U.S. Rt. 50 near Frank Holten State Park.

BGS on WB IL St Rt 15.

NB I-255/EB U.S. Rt. 50 north of IL St Rt 3.

NB I-255/WB U.S. Rt. 50 at IL St Rt 3.

A set of junction markers on NB Old IL St Rt 3.

NB I-255/IL St Rt 3; EB U.S. Rt. 50 north of the Monroe/St. Clair County Line.

20 December 2016