Interstate 64 in Illinois

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Interstate 64

I-64 highlighted in red
Route information
Maintained by IDOT
Length130.4 mi[1] (209.9 km)
NHSEntire route
Major junctions
West end I-55 / I-64 / US 40 at Missouri state line
Major intersections
East end I-64 at Indiana state line
CountryUnited States
CountiesSt. Clair, Clinton, Washington, Jefferson, Wayne, White
Highway system
IL 63 IL 64

Interstate 64 (I-64) in the US state of Illinois is a major east–west Interstate Highway that runs through southern Illinois from the St. Louis metropolitan area east to the Indiana state line near Grayville, Illinois. It travels a distance of 130.4 miles (209.9 km).[1]

Route description

Poplar Street Bridge over the Mississippi River

I-64 enters Illinois running concurrently with I–55 and U.S. Route 40 (US 40) over the Mississippi River on the Poplar Street Bridge. After splitting from these highways in East St. Louis, I-64 turns southeasterly and proceeds through St. Clair County towards the Belleville area traveling through the eastern/southeastern St. Louis suburbs of Caseyville, Fairview Heights, O'Fallon, and Shiloh. In Shiloh, the Interstate skirts the northern edge of Scott Air Force Base and MidAmerica St. Louis Airport and provides access to Mascoutah and Lebanon via Illinois Route 4 (IL 4). A new interchange at Rieder Road was completed in September 2017 to create better access to Scott Air Force Base.[2] As part of the new interchange, a third lane in each direction, a wide left shoulder to accommodate a future fourth lane in each direction, and a center Jersey barrier was added from one mile (1.6 km) west of Air Mobility Drive/IL 158 to Rieder Road.

At the St. Clair–Clinton county line, the Interstate passes the exurb of New Baden, after which it crosses the southern boundary of Clinton County and leaves the St. Louis metropolitan area. It then traverses a rural part of Illinois through Washington and Jefferson counties, which has no adjacent cities or major intersections passing; it reaches the city of Mount Vernon in Jefferson County, where it has a short concurrency with I-57. Mount Vernon is the only major city and intersection served by I-64 in Illinois outside of the St. Louis metropolitan area.[1][3] Past Mount Vernon, the Interstate enters another rural stretch through parts of Jefferson, Wayne, and White counties before crossing the Wabash River into Indiana.[3]


Starting in 1970, a small portion of I-64 opened just west of the Indiana state line.[4] In 1973, another small portion opened just south of Mount Vernon.[5] By 1975, two portions of I-64 (from IL 4 to I-57 and IL 111 to IL 159) opened.[6] By 1977, the rest of the route opened. As a result of the completion, US 460 was completely removed from Illinois.[7]

Exit list

Mississippi River0.00.0

I-55 south / I-64 west / US 40 west – St. Louis
Continuation into Missouri
Poplar Street Bridge
Illinois–Missouri line
St. ClairEast St. Louis0.60.971
IL 3 south / Great River Road – Cahokia
Western end of IL 3/GRR concurrency; exit includes direct exit ramp onto 13th Street / Tudor Avenue
0.91.42AThird Street – Eads Bridge, Casino QueenWestbound exit and eastbound entrance
1.32.12B-CMartin Luther King BridgeDowntown St. LouisSigned as exits 2B (left exit) and 2C (right exit); no eastbound exits

I-55 / Great River Road north / US 40 east to I-70 east – Chicago, Indianapolis
Eastern end of I-55/US 40/GRR concurrency; exit unnumbered eastbound; I-55 north exit 3, south exit 3A

I-70 west (Dwight D. Eisenhower Highway) to IL 3 north – Kansas City
Westbound exit and eastbound entrance; I-70 exit 3
IL 3 north (St. Clair Avenue)
Eastern end of IL 3 concurrency; no westbound exit
3.35.34ABaugh Avenue / 18th StreetWestbound exit and entrance
4.26.84B25th Street
Washington Park5.89.36 IL 111 (Kingshighway)
I-255 / US 50 west – Memphis, Chicago
Western end of US 50 concurrency; I-255 exit 20
8.413.59 IL 157 (Bluff Road) – Caseyville, Centreville
Fairview Heights12.019.312 IL 159 (Illinois Street) – Belleville, Collinsville
O'Fallon14.222.914Old US Highway 50 – O'Fallon
15.725.316Green Mount Road – O'Fallon, Shiloh

US 50 east / IL 158 west (Air Mobility Drive) – Carlyle, Scott Air Force Base
Eastern end of US 50 concurrency; northern terminus of IL 158; signed as exits 19A (west) and 19B (east)
21Rieder RoadCompleted in 2017
Mascoutah22.636.423 IL 4 – Mascoutah, LebanonServes MidAmerica St. Louis Airport
New Baden27.143.627 IL 161 – New Baden
ClintonLooking Glass Township34.255.034Albers
WashingtonOkawville Township40.465.041 IL 177 – Okawville
Nashville49.880.150 IL 127 – Carlyle, Nashville
Richview Township60.797.761 US 51 – Centralia, Ashley
township line
Mount Vernon73.3118.073
I-57 north – Chicago
Western end of I-57 concurrency, exit 96 on I-57
74.8120.495 IL 15 – Mount Vernon, AshleyExit numbers follow I-57; serves Mount Vernon Outland Airport
75.8122.094Veterans Memorial Drive
McClellan Township78.0125.578

I-57 south to I-24 – Memphis, Nashville
Eastern end of I-57 concurrency; exit 92 on I-57. Access to Rend Lake
Dodds Township79.7128.380 IL 37 – Mount Vernon
Pendleton Township88.5142.489Belle Rive, Bluford
WayneOrel Township99.3159.8100 IL 242 – Wayne City
Barnhill Township110.1177.2110 US 45 – Mill Shoals
WhiteBurnt Prairie Township116.7187.8117 CR 20 – Burnt Prairie
Grayville129.4208.2130 IL 1 – Grayville, Carmi
Wabash River130.4209.9
I-64 east – Evansville, Louisville
Continuation into Indiana
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b c d Google (August 2, 2014). "Overview Map of Interstate 64 in Illinois" (Map). Google Maps. Google. Retrieved August 2, 2014.
  2. ^ Landis, Kelsey (September 8, 2017). "After Nearly Three Years of Construction, New Exit off Interstate 64 Will Open Soon". Belleville News-Democrat. Retrieved November 25, 2018.
  3. ^ a b Illinois Department of Transportation (November 2008). Interstate Exit Numbers of Illinois (PDF) (Map). Scale not given. Springfield: Illinois Department of Transportation.
  4. ^ Illinois Division of Highways; Rand McNally (1970). Illinois Official Highway Map (Map). [1:772,500]. Springfield: Illinois Division of Highways. Retrieved November 16, 2020 – via Illinois Digital Archives.
  5. ^ Illinois Department of Transportation (1973). Illinois Highway Map (Map). [1:772,500]. Springfield: Illinois Department of Transportation. Retrieved November 16, 2020 – via Illinois Digital Archives.
  6. ^ Illinois Department of Transportation (1975). Illinois Highway Map (Map). [1:772,500]. Springfield: Illinois Department of Transportation. Retrieved November 16, 2020 – via Illinois Digital Archives.
  7. ^ Illinois Department of Transportation (1977). Illinois Highway Map (Map). [1:772,500]. Springfield: Illinois Department of Transportation. Retrieved November 16, 2020 – via Illinois Digital Archives.
  8. ^ Google (August 2, 2014). Town/City Boundary Map (Map). Google. Retrieved August 2, 2014 – via John Coryat.

External links

Interstate 64
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