Roads of the Mid-South & West > Highways of the State of Illinois > Double Number U.S. Federal Highways of Illinois > U.S. Federal Route 40, Illinois > U.S. Federal Route 40; Madison County, Illinois

U.S. Federal Route 40
Madison County

U.S. Federal Route 40 run east-west across Madison County. Most of this is on interstates.
U.S. Rt. 40 passes through the following towns in Madison County.
Highland

Troy

Maryville
Collinsville

U.S. Rt. 40 is multi-plexed in Madison County.
Interstate 70, from the Bond/Madison County Line to near Highland.


Illinois State Route 143, at Highland.

Illinois State Route 160, at Highland.

Interstate 55, from Troy to the Madison/St. Clair County Line.

Interstate 70,from Troy to the Madison/St. Clair County Line.

U.S. Rt. 40 intersects the following highways in Madison County.
Interstate 70, near Highland.
Illinois State Route 143, near Highland.

Illinois State Route 160, at Highland.

Illinois State Route 160, at Highland.

Illinois State Route 143, at Highland.

Illinois State Route 4, near Troy.

Illinois State Route 162, near Troy.

Interstate 55, near Troy.
Interstate 70, near Troy.

Illinois State Route 159, near Maryville.
Illinois State Route 157, at Collinsville.

Interstate 255, at Collinsville.
Illinois State Route 111, near Fairmount City.

EB I-70/U.S. Rt. 40 east of west U.S. Rt. 40/IL St Rt 143.

A BGS on WB I-70/U.S. Rt. 40.

WB U.S. Rt. 40/IL St Rt 143 south of I-70.

EB U.S. Rt. 40/IL St Rt 143 near Highland.

WB U.S. Rt. 40/IL St Rt 143 at south IL St Rt 160.

EB U.S. Rt. 40 west of IL St Rt 4.

EB U.S. Rt. 40 east of IL St Rt 162.

EB U.S. Rt. 40 east of IL St Rt 162.

A guide marker on EB IL St Rt 162.

EB U.S. Rt. 40 at Troy.

EB U.S. Rt. 40 east of I-55/70.

EB U.S. Rt. 40/IL St Rt 143; SB IL St Rt 160 at Highland.

BGS on SB I-55/WB I-70.

A set of BGS's on SB I-55/WB I-70.

A BGS on SB I-55/WB I-70.

A BGS on SB I-55/WB I-70.

A BGS on NB I-55; EB I-70/U.S. Rt. 40.

NB I-55; EB I-70/U.S. Rt. 40 west of east U.S. Rt. 40.

NB I-55; EB I-70/U.S. Rt. 40 east of IL St Rt 159.

SB I-55; WB I-70/U.S. Rt. 40 at IL St Rt 159.

A junction marker on SB IL St Rt 159.

NB I-55; EB I-70/U.S. Rt. 40 at IL St Rt 159.

SB I-55; WB I-70/U.S. Rt. 40 west of IL St Rt 159.

NB I-55; EB I-70/U.S. Rt. 40 north of IL St Rt 157.

NB I-55; EB I-70/U.S. Rt. 40 north of IL St Rt 157.

SB I-55/WB I-70; U.S. Rt. 40 a one mile from I-255. (May, 2011)

SB I-55; WB I-70/U.S. Rt. 40 one mile from I-255. (May, 2022)

A junction marker on NB IL St Rt 157.

SB I-55/WB I-70; U.S. Rt. 40 at IL St Rt 157. (May, 2011)

SB I-55; WB I-70/U.S. Rt. 40 at IL St Rt 157. (May, 2022)

NB I-55; EB I-70/U.S. Rt. 40 at IL St Rt 157.

SB I-55/WB I-70; U.S. Rt. 40 at I-255. (May, 2011)

SB I-55; WB I-70/U.S. Rt. 40 a half mile from I-255. (May, 2022)

NB I-55; EB I-70/U.S. Rt. 30 south of I-255.

A interesting bridge support on NB I-55; EB I-70/U.S. Rt. 40 near I-255 in Collinsville.

SB I-55; WB I-70/U.S. Rt. 40 west of I-255.

NB I-55; EB I-70/U.S. Rt. 40 near Fairmont City.

A junction marker on NB IL St Rt 111.

NB I-55; EB I-70/U.S. Rt. 40 north of IL St Rt 111.

A BGS on SB IL St Rt 111.

NB I-55; EB I-70/U.S. Rt. 40 at the Madison/St. Clair County Line.
27 March 2026