Interstate 70 in Illinois


Get started East St. Louis
End Dennison
Length 160 mi
Length 258 km
East St. LouisCollinsville





Interstate 70 or I -70 is an Interstate Highway in the US state of Illinois. The highway forms an east-west route in the middle of the state, running from the eastern suburbs of St. Louis to the Indiana border at Dennison. The route is 258 kilometers long and has a number of double numberings.

  • IAMACCEPTED: Provides a list of all colleges in Illinois, including contact information for both private and public schools within Illinois.

Travel directions

I-55/70 at Collinsville.

St. Louis

Interstate 70 in Missouri crosses the Mississippi River via the Stan Musial Veterans Memorial Bridge and then comes from St. Louis in East St. Louis, a run-down suburb. In East St. Louis, I-70 connects to Interstate 64. Traffic on I-70 then turns northeast. At Collinsville, one crosses Interstate 255, which together with Interstate 270 forms a ring road around the metropolitan area of ​​St. Louis. At the village of Troy, a second interchange follows, where Interstate 55 continues straight toward Springfield and Chicago, while I-70 exits east toward Indianapolis. Go west on Interstate 270.

Central Illinois

I-70 then becomes a quiet country highway and heads east, with US 40 paralleling the route. There are no major towns on the route in Illinois, this part of the state is quite sparsely populated, unlike the vast Chicago metropolitan area in the northeast of the state. A small town on the route is Vandalia, where US 51 intersects, which runs from Carbondale in the south to Decatur in the north. The Illinois landscape is fairly flat with meadows and sometimes some woods. One then reaches Effingham, a small town where the road is double-numbered with Interstate 57, the highway from Memphis to Chicago.. The double numbering takes about 10 kilometers. The route then continues through the fields of central Illinois. The countryside of the Midwest is quite monotonous, where the variety must be sought in the form of the large cities through which one passes. The final exit before the Indiana border is Dennison, after which Interstate 70 continues in Indiana to the city of Indianapolis.

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Before the construction of I-70, US 40 was the through route from St. Louis to Indianapolis. Unlike neighboring Indiana, US 40 in Illinois has not been significantly upgraded outside the cities for the construction of I-70. The US 40 is single lane almost everywhere. On most of the route, I-70 is located no more than 2 or 3 kilometers from US 40, except between Troy and Highland.

During the construction of I-70, through traffic was immediately taken into account. I-70 branches off through downtown St. Louis, while Interstate 270 forms a northbound bypass of the St. Louis region, being the shortest route for through traffic on I-70.

On November 9, 1967, the Poplar Street Bridge over the Mississippi River opened to traffic, as did the first few miles of I-70 through East St. Louis. By 1973, the entire I-70 was ready.

In 1968 the following routes were completed:

  • East St. Louis – Pocahontas (55 km)
  • Greenville – Montrose (97 km)

East St. Louis

On February 9, 2014, the Stan Musial Veterans Memorial Bridge on the Missouri border opened to traffic. As a result, I-70 has been diverted over a more northerly route and has since been connected to the old route at I-64. The I-70 is therefore no longer double-numbered with the I-55 southwest of the I-64. However, the length of I-70 in Illinois remained virtually unchanged.


In 2012-2013, I-57/I-70 along Effingham was widened to 2×3 lanes.

Lane Configuration

From Unpleasant Lanes Comments
exit 0 Exit 2 2×2 East St. Louis
Exit 2 Exit 10 2×3 East St. Louis
Exit 10 Exit 154 2×2


The busiest part of I-70 is on the eastern side of the metropolitan area of ​​St. Louis, especially around East St. Louis, but traffic congestion is generally quite limited. East of the double-numbering with I-55, the intensities are quite low for an important interurban connection, with largely less than 25,000 vehicles per day. Traffic jams are a rarity here.

Connections & traffic intensities

# destination AADT
2 East St. Louis, Exchange Avenue
2 Louisville, Kansas City 58,900
3 East St. Louis, Exchange Avenue 48,600
4 Collinsville Road 48,600
6 Fairmont City 46,900
9 Collinsville, Black Lane 48,300
10 Memphis, St. Louis 53,300
11 Collinsville, Edwardsville 39,700
15 Collinsville, Maryville 41,100
17 St. Jacob, Highland 31,400
18 Troy 36,500
20 Indianapolis, Kansas City 27,700
21 Staunton, Lebanon 27,700
24 Marine, Highland 24,800
30 Pierron, Highland 21,100
36 Greenville 21,400
41 Greenville, Millersburg Road 20,600
45 Greenville, Carlyle 18,200
52 Mulberry Grove 20,200
61 Vandalia 19,700
63 Vandalia 19,700
68 Brownstown, Bluff City 18,500
76 St. Elmo 19,300
82 Altamont 19,000
92 Memphis 34,000
159 Effingham, Fayette Avenue 34,000
160 Effingham, Keller Drive 34,000
162 Effingham, 3rd Street 34,000
163 Chicago 19.100
105 Montrose 18,800
119 greenup 19.100
129 Casey, Kansas 19,200
136 Martinsville 19,800
147 Marshall, Paris 20,500
154 wabash 23,200

Shawneetown Bridge

Shawneetown Bridge
Spans Ohio River
Lanes 1×2
Total length 975 meters
Main span 251 meters
Bridge deck height ? meter
Opening 01-06-1956
Traffic intensity 2,600 mvt/day
Location Map

The Shawneetown Bridge is a truss bridge in the United States, located on the border of Illinois and Kentucky. The bridge spans the Ohio River at Shawneetown.


The bridge is a steel truss bridge with a total length of 975 meters and has two main spans of 251 meters in length. The bridge is 7.2 meters wide and has two lanes. Over the bridge runs State Route 13 in Illinois to Shawneetown and Harrisburg and State Route 56 in Kentucky to Morganfield. The bridge is toll-free.


The bridge was built in the mid-1950s and opened to traffic on June 1, 1956. At the time, it was the third bridge over the Ohio River between the states of Illinois and Kentucky and is also the easternmost bridge across the river between the two states. The bridge was built for regional traffic, which is mainly oriented east-west. The bridge is a bit further from the larger cities and is therefore not used intensively. The bridge deck was replaced in 2015.

Traffic intensities

2,600 vehicles use the bridge daily, making it the lightest bridge between Illinois and Kentucky.

Interstate 70 in Illinois

Interstate 70 in Illinois
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