Road Information

Interstate 55 in Illinois    
Total Mileage in State: 294 miles
Northern End: At US 41, in Chicago
Southern End: At Missouri state line
Mileage covered in Photos: 94 miles
Counties covered in Photos: Cook, Sangamon, Montgomery, Macoupin, Madison, St. Clair
Major Junctions in Photos: I-90/I-94, in Chicago
I-70/I-270, in Troy
I-255, in Collinsville
I-64/I-70, in East St. Louis
Control Cities in Photos: Chicago, Springfield, East St. Louis

Southbound

Sections:
  • Section 1: US 41 to Interstate 90 / Interstate 94 (Exit 292)
  • Section 2: Springfield (Exit 92B) to Troy (Exit 20A)
  • Section 3: Troy (Exit 20A) to Missouri Border

Section 1: US 41 to Interstate 90 / Interstate 94 (Exit 292)

   

Merging onto Interstate 55 South from US 41 North in Chicago, which is the national beginning of I-55 South. (Photo taken 8/14/19).

View on the ramp to Interstate 55 South from US 41 North. (Photo taken 8/14/19).

The ramp curves to the west here as you get a view of the Chicago skyline. (Photo taken 8/14/19).

Interstate 55 BEGIN marker as traffic from US 41 South and US 41 North come together to form the southbound lanes of I-55. (Photo taken 8/14/19).

Interstate 55 South approaching Exits 293B and 292 - 1 mile. (Photo taken 8/14/19).

Interstate 55 South approaching Exit 293C - 1/4 mile. (Photo taken 8/14/19).

Take Exit 293C to Chinatown and McCormick Place. (Photo taken 8/14/19).

Interstate 55 South at Exit 293C: State St (Photo taken 8/14/19).

Interstate 55 South at Exit 293B: Interstate 90 East / Interstate 94 East - Indiana (Photo taken 8/14/19).

The speed limit on Interstate 55 South starts out at 50 mph in downtown Chicago. (Photo taken 8/14/19).

Interstate 55 South at Exit 292: Interstate 90 West / Interstate 94 West - Wisconsin (Photo taken 8/14/19).

Section 2: Springfield (Exit 92B) to Troy (Exit 20A)

   

South of Exit 92B, the maximum speed limit increases to 70 mph once again. The minimum speed limit remains 45 mph. (Photo taken 5/16/18).

Interstate 55 South reassurance shield to the south of Springfield. (Photo taken 5/16/18).

Take Exit 90 to the University of Illinois Springfield Campus. (Photo taken 5/16/18).

Also take Exit 90 to Lincoln Land Community College. (Photo taken 5/16/18).

Interstate 55 South at Exit 90: Toronto Road (Photo taken 5/16/18).

The speed limits remain 70 mph maximum and 45 mph minimum. These are the standard speed limits on most rural Interstate highways in Illinois. (Photo taken 5/16/18).

Take Exit 88 to Lincoln Memorial Garden and Nature Center. (Photo taken 5/16/18).

Also take Exit 88 to the State Police Training Academy. (Photo taken 5/16/18).

Interstate 55 South at Exit 88: Chatham / East Lake Dr (Photo taken 5/16/18).

Another Interstate 55 South reassurance shield. (Photo taken 5/16/18).

Mileage sign on Interstate 55 South. It's 6 miles to the junction of IL 104, 86 miles to East St. Louis, and 89 miles to St. Louis. (Photo taken 5/16/18).

Mile marker 85 on Interstate 55 South in Sangamon County. (Photo taken 5/16/18).

Interstate 55 South at Exit 83: Glenarm (Photo taken 5/16/18).

Take Exit 82 to Sangchris Lake State Park. (Photo taken 5/16/18).

Interstate 55 South at Exit 82: IL 104 - Auburn / Pawnee (Photo taken 5/16/18).

Interstate 55 South at Exit 80: Divernon (Photo taken 5/16/18).

The speed limits remain 70 mph maximum and 45 mph minimum. (Photo taken 5/16/18).

View on Interstate 55 South at mile marker 79. (Photo taken 5/16/18).

Interstate 55 South at mile marker 78. (Photo taken 5/16/18).

Interstate 55 South as it enters Montgomery County. (Photo taken 5/16/18).

View on Interstate 55 South at mile marker 75. (Photo taken 5/16/18).

Mile marker 74 on Interstate 55 South in Montgomery County. (Photo taken 5/16/18).

Take Exit 72 to Waggoner and Morrisonville. (Photo taken 5/16/18).

Interstate 55 South at Exit 72: Farmersville / Girard (Photo taken 5/16/18).

Another mileage sign at mile marker 71. It's 7 miles to the junction of IL 48 / IL 127, 70 miles to East St. Louis, and 73 miles to St. Louis. (Photo taken 5/16/18).

View on Interstate 55 South at mile marker 69. (Photo taken 5/16/18).

Interstate 55 South at mile marker 68. (Photo taken 5/16/18).

Rest Area on Interstate 55 South in Montgomery County. (Photo taken 5/16/18).

Interstate 55 South at Exit 63: IL 48 / IL 127 - Raymond / Hillsboro (Photo taken 5/16/18).

Take Exit 60 to Blackburn College. (Photo taken 5/16/18).

Interstate 55 South at Exit 60: IL 108 - Carlinville (Photo taken 5/16/18).

View on Interstate 55 South at mile marker 57. (Photo taken 5/16/18).

Interstate 55 South at mile marker 55. (Photo taken 5/16/18).

Take Exit 52 to Lake Yaeger. (Photo taken 5/16/18).

Interstate 55 South at Exit 52: IL 16 - Gillespie / Litchfield (Photo taken 5/16/18).

Interstate 55 South as it enters Macoupin County. (Photo taken 5/16/18).

View on Interstate 55 South at mile marker 50. (Photo taken 5/16/18).

Interstate 55 South at mile marker 48. (Photo taken 5/16/18).

Take Exit 44 to the Mother Jones Monument. (Photo taken 5/16/18).

Also take Exit 44 to White City. (Photo taken 5/16/18).

Interstate 55 South at Exit 44: IL 138 - Mt Olive / Benld (Photo taken 5/16/18).

Mile marker 43 on Interstate 55 South in Macoupin County. (Photo taken 5/16/18).

Interstate 55 South at Exit 41: Staunton (Photo taken 5/16/18).

Interstate 55 South as it enters Madison County. (Photo taken 5/16/18).

View on Interstate 55 South at mile marker 39. (Photo taken 5/16/18).

Interstate 55 South at Exit 37: Livingston / New Douglas (Photo taken 5/16/18).

Interstate 55 South reassurance shield. (Photo taken 5/16/18).

View on Interstate 55 South at mile marker 35. (Photo taken 5/16/18).

Take Exit 33 to Worden. (Photo taken 5/16/18).

Interstate 55 South at Exit 33: IL 4 - Staunton / Lebanon (Photo taken 5/16/18).

The speed limits remain 70 mph maximum and 45 mph minimum. (Photo taken 5/16/18).

Interstate 55 South at mile marker 31. (Photo taken 5/16/18).

Take Exit 30 to Hamel. (Photo taken 5/16/18).

Interstate 55 South at Exit 30: IL 140 - Alton / Greenville (Photo taken 5/16/18).

Rest Area on Interstate 55 South in Madison County. (Photo taken 5/16/18).

View on Interstate 55 South at mile marker 26. (Photo taken 5/16/18).

Interstate 55 South at mile marker 24. (Photo taken 5/16/18).

Interstate 55 South at Exit 23: IL 143 - Edwardsville / Marine (Photo taken 5/16/18).

View on Interstate 55 South at mile marker 22. (Photo taken 5/16/18).

Interstate 55 South approaching Exits 20B-A - 1 mile. (Photo taken 5/16/18).

The maximum speed limit decreases to 65 mph on Interstate 55 South as it approaches the junction of Interstate 70 and Interstate 270 ahead. The minimum speed limit remains 45 mph. (Photo taken 5/16/18).

View on Interstate 55 South at mile marker 20. (Photo taken 5/16/18).

Interstate 55 South at Exit 20B: Interstate 270 West - Kansas City (Photo taken 5/16/18).

Interstate 55 South at Exit 20A: Interstate 70 East - Indianapolis (Photo taken 5/16/18).

Section 3: Troy (Exit 20A) to Missouri Border

   

Interstate 55 South at mile marker 19.2. Ahead, traffic from Interstate 70 West will merge into the southbound lanes of I-55, and their concurrency will run for the next 16 miles to East St. Louis. (Photo taken 5/16/18).

At mile marker 19, we see both Interstate 55 and Interstate 70 noted on the milepost itself. While only the west direction is shown on the milepost, this begins the Interstate 55 South / Interstate 70 West concurrency. During the concurrency, the mileage and exit numbers are based on the total mileage of I-55. (Photo taken 5/16/18).

Interstate 55 South / Interstate 70 West at Exit 18: IL 162 - Troy (Photo taken 5/16/18).

Interstate 55 South / Interstate 70 West reassurance shields at mile marker 17.8. (Photo taken 5/16/18).

The speed limits remain 65 mph maximum and 45 mph minimum. (Photo taken 5/16/18).

Interstate 55 South / Interstate 70 West at Exit 17: US 40 East - St Jacob / Highland (Photo taken 5/16/18).

View on Interstate 55 South / Interstate 70 West at mile marker 15.6. (Photo taken 5/16/18).

Take Exit 15B to Glen Carbon and Edwardsville. (Photo taken 5/16/18).

Interstate 55 South / Interstate 70 West at Exit 15B: IL 159 North - Maryville (Photo taken 5/16/18).

Interstate 55 South / Interstate 70 West at Exit 15A: IL 159 South - Collinsville (Photo taken 5/16/18).

Weigh Station on Interstate 55 South / Interstate 70 West in Madison County. (Photo taken 5/16/18).

Mileage sign on Interstate 55 South / Interstate 70 West. It's 2 miles to the junction of IL 157, 12 miles to East St. Louis, and 15 miles to St. Louis. (Photo taken 5/16/18).

View on Interstate 55 South / Interstate 70 West at mile marker 13. (Photo taken 5/16/18).

Advance signage for the junction of Interstate 255 via Exit 10 - 2 miles ahead. (Photo taken 5/16/18).

Mile marker 12 on Interstate 55 South / Interstate 70 West in Madison County. (Photo taken 5/16/18).

Take Exit 10 and follow Interstate 255 South to Cahokia Mounds Historic Site and Our Lady of Snows Shrine. (Photo taken 5/16/18).

Take Exit 11 to Glen Carbon. (Photo taken 5/16/18).

Also take Exit 11 to the Illinois State Police District 11 Headquarters and the Convention Center. (Photo taken 5/16/18).

Traffic to Fairmount Race Track should follow Interstate 255 South via Exit 10. (Photo taken 5/16/18).

Interstate 55 South / Interstate 70 West at Exit 11: IL 157 - Collinsville / Edwardsville (Photo taken 5/16/18).

Interstate 55 South / Interstate 70 West at Exit 10: Interstate 255 - Memphis / Interstate 270 (Photo taken 5/16/18).

Mile marker 8.6 on Interstate 55 South / Interstate 70 West in Madison County. (Photo taken 5/16/18).

Take Exit 6 to Horseshoe Lake State Park. (Photo taken 5/16/18).

Also take Exit 6 to Pontoon Beach and Fairmont City. (Photo taken 5/16/18).

Interstate 55 South / Interstate 70 West at Exit 6: IL 111 / Great River Road North - Wood River / Washington Park (Photo taken 5/16/18).

Speed limit signs at mile marker 5.8, as the tip of the Gateway Arch in downtown St. Louis comes into view. The speed limits remain 65 mph maximum and 45 mph minimum. (Photo taken 5/16/18).

Interstate 55 South / Interstate 70 West as the duplex enters St. Clair County. (Photo taken 5/16/18).

Take Exit 4B to Madison and Gateway Motorsports Park. (Photo taken 5/16/18).

Approaching Exit 4B, the maximum speed limit decreases to 55 mph as Interstate 55 South / Interstate 70 West enter the East St. Louis area. The minimum speed limit remains 45 mph. (Photo taken 5/16/18).

Interstate 55 South / Interstate 70 West at Exit 4B: IL 203 North - Granite City (Photo taken 5/16/18).

Interstate 55 South / Interstate 70 West at Exit 4A: IL 203 South - Collinsville Rd (Photo taken 5/16/18).

Take Exit 2A to the Riverboat Casino. (Photo taken 5/16/18).

Take any of the next 4 exits to East St. Louis. (Photo taken 5/16/18).

Take Exit 3C to get turned around onto Interstate 55 North and Interstate 70 East. (Photo taken 5/16/18).

Interstate 55 South / Interstate 70 West approaching Exits 3C-B - 1/2 mile. (Photo taken 5/16/18).

Approaching the departure of Interstate 70 West via Exit 3B, the maximum speed limit decreases to 50 mph. (Photo taken 5/16/18).

Interstate 55 South / Interstate 70 West at Exit 3C: Exchange Ave; Exit 3B: Interstate 70 West - Kansas City (Photo taken 5/16/18).

A closer look at the ramps for Exits 3C-B from Interstate 55 South as Interstate 70 West departs via Exit 3B. Ahead, I-55 South will be joined by the westbound traffic from Interstate 64 to head for downtown St. Louis. (Photo taken 5/16/18).

Interstate 55 South at Exit 3A: Interstate 64 East / IL 3 North - Louisville / St Clair Ave (Photo taken 5/16/18).

A closer view of the ramp for Exit 3A, on the left. (Photo taken 5/16/18).

Interstate 55 South approaching Exit 2C - 1/2 mile. Ahead, Interstate 64 West traffic will join I-55 South from the left. (Photo taken 5/16/18).

The speed limit remains 50 mph as traffic from Interstate 64 West merges into the southbound lanes of Interstate 55. I-55 South and I-64 West will run concurrently to the Mississippi River and Missouri border in downtown St. Louis. (Photo taken 5/16/18).

Interstate 55 South / Interstate 64 West approaching Exits 2C-B. Thru traffic must remain in the three center lanes. (Photo taken 5/16/18).

Interstate 55 South / Interstate 64 West at Exits 2C-B: Martin Luther King Bridge / Downtown St. Louis. While these exits have different numbers, they lead to the same destination and exist to provide easier access for traffic which is coming from Interstate 64 West. (Photo taken 5/16/18).

View on Interstate 55 South / Interstate 64 West at mile marker 2. (Photo taken 5/16/18).

Interstate 55 South / Interstate 64 West at Exit 2A: Third Street / Eads Bridge (Photo taken 5/16/18).

Take Exit 1 to Sauget. (Photo taken 5/16/18).

Ahead, the thru lanes of Interstate 55 South / Interstate 64 West will split for a brief time. Traffic looking to take Exit 1 should keep right at this split. (Photo taken 5/16/18).

Interstate 55 South / Interstate 64 West as their thru lanes split approaching the Mississippi River. All lanes go thru, and they will merge back together just before the Mississippi River and Missouri border. (Photo taken 5/16/18).

Interstate 55 South / Interstate 64 West at Exit: 13th St / Tudor Ave (Photo taken 5/16/18).

View on Interstate 55 South / Interstate 64 West in East St. Louis as the duplex approaches Exit 1 and the Mississippi River. (Photo taken 5/16/18).

Interstate 55 South / Interstate 64 West at Exit 1: IL 3 South / Great River Road South - Cahokia (Photo taken 5/16/18).

Just beyond Exit 1, the thru lanes of Interstate 55 South / Interstate 64 West prepare to come back together again after the aforementioned brief split. (Photo taken 5/16/18).

View on Interstate 55 South / Interstate 64 West as they begin to cross the Mississippi River into Missouri and downtown St. Louis. (Photo taken 5/16/18).

A view of downtown St. Louis and the Gateway Arch from Interstate 55 South / Interstate 64 West as the duplex crosses the Mississippi River from Illinois into Missouri. (Photo taken 5/16/18).