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. 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.
BGS at 2 miles. BGS at 1 mile. BGS near M.P. 11. Overhead signs at the ramp to I-255. 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.
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) 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.
Branches of I-70 in Illinois. WB I-70/U.S. Rt. 40 at the Illinois/Indiana State Line. EB I-70 near Greenup. BGS on SB I-57 at Effingham. BGS on IL St Rt 32/33 in Effingham. A BGS in Effingham. A guide marker on EB U.S. Rt. 40/SB IL St Rt 128. Photo courtesy: Paul Dienhart 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. SB I-55/WB I-70 near Troy. SB I-55/WB I-70 near U.S. Rt. 40 south of IL St Rt 162. NB I-55; EB I-70/U.S. Rt. 40 in Collinsville. A junction marker on SB IL St Rt 159. A interesting bridge support on NB I-55; EB I-70/U.S. Rt. 40. NB I-55; EB I-70/U.S. Rt. 40 near Fairmont City. A mile marker near East St. Louis. NB I-55/EB I-70 near IL St Rt 203. A set of guide markers on SB IL St Rt 3. 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.
