Interstate 70, Illinois
Roads of the Mid-South & West > Highways of the State of Illinois > Interstate 70, Illinois

Interstate 70

Interstate 70 in Illinois run east-west across the southern portion of the state. This highway enters the state from Indiana near Terre Haute. Then it enters Missouri at St. Louis. Much of I-70 runs along the National Highway/U.S. Rt. 40 path.

In 2014, Interstate 70 was routed off of the Poplar Street Bridge at the East St. Louis, IL-St. Louis, MO Mississippi River crossing, and on to the newly constructed Stan Musual Veterans Memorial Bridge. This bridge was located north of Downtown St. Louis. Traffic exits the Interstate 55/70; U.S. 40 routing at the interchange in East St. Louis with Interstate 64, at St. Clair Avenue.

While in Illinois, Interstate 70 is multi-plexed.

I-70 is multi-plex in Illinois with...

...U.S. Rt. 40, from the Indiana/Illinois state line to two (2) miles to the west.

...Interstate 57, at Effingham.

...U.S. Rt. 40, from M.P. 36 to M.P. 30 near Highland.
...Interstate 55, from near Troy to East St. Louis.

...U.S. Rt. 40, from near Troy to East St. Louis.


Info on the New Mississippi River Bridge Project...


In Illinois, Interstate 70 crosees the following interstates.
Interstate 57, at Effingham.

A BGS for I-57 on WB I-70.

WB I-70 near I-57.

WB I-70 at I-57.
Interstate 57, at Effingham.

SB I-57/WB I-70 two miles from their split. (July, 2016)

SB I-57/WB I-70 one miles from their split. (July, 2016)

SB I-57/WB I-70 near their split. (July, 2016)

SB I-57/WB I-70 at their split. (July, 2016)
Interstate 55, near Troy.

NB I-55/EB I-70 near their split in Troy.

A BGS on NB I-55/EB I-70.

Another BGS on NB I-55/EB I-70.

NB I-55 at EB I-70.

NB I-55 one mile from EB I-70. (September, 2014)

A BGS for EB I-70. (September, 2014)

NB I-55 at EB I-70. (September, 2014)
Interstate 270, near Troy.

WB I-70 two miles from I-55/270. (June, 2010)

WB I-70 one mile from I-55/270. (June, 2010)

WB I-70 near I-55/270. (June, 2010)

WB I-70 at I-55/270. (June, 2010)

Interstate 255, near Collinsville.

BGS at 2 miles.

BGS at 1 mile.

BGS near M.P. 11.

Overhead signs at the ramp to I-255.

A BGS one mile from I-255 on SB I-55/WB I-70. (May, 2011)

SB I-55/WB I-70 a half mile from I-255. (May, 2011)

A BGS on SB I-55/WB I-70. (May, 2011)

SB I-55/WB I-70 at I-255. (May, 2011)

The first BGS on NB I-55/EB I-70.

NB I-55/EB I-70 one mile from I-255.

NB I-55/EB I-70 near I-255.

NB I-55/EB I-70 at I-255.
Interstate 55, at East St. Louis.
Interstate 64, at East St. Louis.

A BGS for I-64 on SB I-55/WB I-70. (September, 2007)

A BGS about one mile from I-64 on SB I-55/WB I-70. (September, 2007)

SB I-55/WB I-70 near I-64 in East St. Louis. (September, 2007)

SB I-55/WB I-70 at I-64. (September, 2007)

SB I-55; WB I-70/U.S. Rt. 40 two miles from the East St. Louis interchange. (July, 2014)

SB I-55; WB I-70/U.S. Rt. 40 a half mile from the East St. Louis interchange. (July, 2014)

SB I-55; WB I-70/U.S. Rt. 40 near the East St. Louis interchange. (July, 2014)

SB I-55; WB I-70/U.S. Rt. 40 at the East St. Louis interchange. (July, 2014)

EB I-70 two miles from I-64.

EB I-70 a half miles from I-64.

EB I-70 near I-64.

EB I-70 at I-55/64.


Branches of I-70 in Illinois.



WB I-70/U.S. Rt. 40 at the Illinois/Indiana State Line.

EB I-70 near Greenup.

A guide marker in Montrose.

A junction marker in Montrose.

A guide marker in Montrose.

A BGS in Montrose.

WB I-70 west of Montrose.

A BGS on SB I-57.

BGS on SB I-57 at Effingham.

A guide marker on SB U.S. Rt. 45.

BGS on IL St Rt 32/33 in Effingham.

A BGS in Effingham.

A BGS on NB I-57.

A BGS in Effingham.

A set of guide markers in Effingham.

EB I-70 west of I-57.

A guide marker on EB U.S. Rt. 40/SB IL St Rt 128.
Photo courtesy: Paul Dienhart

A guide marker in Altamont.

A BGS on WB U.S. Rt. 40.

A guide marker in Vandalia.

WB I-70 west of U.S. Rt. 40 at Vandalia.

A BGS near Pocahontas.

WB I-70/U.S. Rt. 40 near Pocahontas.

WB I-70/U.S. Rt. 40 near the Bond/Madison County Line.

WB I-70 near Highland.

A BGS on EB IL St Rt 143.

A junction marker on NB IL St Rt 4.

WB I-70 near Troy.

SB I-55/WB I-70 near Troy.

EB I-70 near Troy.

EB I-70 east of I-55/270.

A junction marker on WB IL St Rt 162.

A BGS on WB IL St Rt 162.

NB I-55/EB I-70 at IL St Rt 162.

NB I-55/EB I-70 at IL St Rt 162.

SB I-55/WB I-70 near U.S. Rt. 40 south of IL St Rt 162.

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

NB I-55; EB I-70/U.S. Rt. 40 in Collinsville.

A junction marker on SB IL St Rt 159.

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

A BGS on NB IL St Rt 157.

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

NB I-55; EB I-70/U.S. Rt. 40 at I-255.

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

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.

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

SB I-55; WB I-70/U.S. Rt. 40 at the Madison/St. Clair County Line.

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

A BGS on SB IL St Rt 111.

A set of guide markers on EB IL St Rt 162.

A mile marker near East St. Louis.

SB I-55; WB I-70/U.S. Rt. 40 at IL St Rt 203.

A BGS on the ramp from SB IL St Rt 203.

NB I-55; EB I-70/U.S. Rt. 40 north of IL St Rt 203.

NB I-55/EB I-70 near IL St Rt 203.

Looking south at I-55/70; U.S. Rt. 40 from Exchange Ave. in East St. Louis.

A set of guide markers in East St. Louis.

A set of guide markers on SB IL St Rt 3.

A guide marker on NB IL St Rt 3.

WB I-70 west of I-55/64; U.S. Rt. 40.

WB I-70 near the IL St Rt 3 exit.

EB I-70 at the Illinois Welcome Sign.

WB I-70 west of the IL St Rt 3 exit.

EB I-70 near Exchange Avenue.

WB I-70 near the Stan Bridge.

WB I-70 crossing the Stan Bridge.

EB I-70 on the Illinois side of the Stan Musal Bridge.

EB I-70 at the Illinois/Missouri State Line.

Photos from I-70 in East St. Louis prior to 2014.

WB I-64/70; U.S. Rt. 40/SB I-55; IL St Rt 3 near 3rd Street in East St. Louis.

NB I-55/IL St Rt 3; EB I-64/70; EB U.S. Rt. 40 at the Illinois Welcome Sign. (September, 2007)

Loking north along I-55/64/70; U.S. 40; IL in East St. Louis. Photo from SB I-55/IL St Rt 3; WB I-64/70-U.S. 40 to Tudor Ave.

A junction marker on NB IL St Rt 3.

A set of BGS's on NB IL St Rt 3.

Overhead signage just over the Illinois State Line at the Poplar Street Bridge, St. Louis, MO.

SB I-55; WB I-64/70-U.S. Rt. 40 as seen from the Union Pacific railroad overpass in the photo above.

NB I-55; EB I-64/70; U.S. Rt. 40 at the Illinois/Missouri State Line.

A BGS along I-70.

A BGS along I-70.

A BGS along I-70.

A BGS along I-70.

A BGS along I-70.

The first BGS for the split of I-55/70 and I-64.

Another BGS on NB I-55; EB I-64/70.

NB I-55; EB I-70 at the split of EB I-64 in East St. Louis.

20 December 2016