Road Information

Interstate 270 in Missouri    
Total Mileage in State: 35 miles
Northern/Eastern End: At Illinois state line
Southern/Western End: At I-255, in Mehlville
Mileage covered in Photos: 35 miles
Counties covered in Photos: St. Louis
Major Junctions in Photos: I-170, in Hazelwood
I-70, in Bridgeton
I-64, in Town and Country
I-44, in Sunset Hills
I-55, in Mehlville
Control Cities in Photos: St. Louis, Florissant, Hazelwood, Bridgeton, Maryland Heights, Town and Country, Sunset Hills

Westbound/Southbound

   

Interstate 270 West as it enters Missouri from Illinois by crossing the New Chain of Rocks Bridge over the Mississippi River. (Photo taken 5/16/18).

Interstate 270 West at Exit 34: Riverview Drive (Photo taken 5/16/18).

Missouri welcome sign on Interstate 270 West, just beyond Exit 34. (Photo taken 5/16/18).

At mile marker 34.5, this sign welcomes you to St. Louis as Interstate 270 West starts out within the city limits. (Photo taken 5/16/18).

Interstate 270 West at Exit 33: Lilac Ave (Photo taken 5/16/18).

Take Exit 32 to National Personnel Records Center. (Photo taken 5/16/18).

Interstate 270 West at Exit 32: Bellefontaine Road (Photo taken 5/16/18).

The speed limit on Interstate 270 in Missouri is 60 mph for its entire length. (Photo taken 5/16/18).

Take Exit 31A to Missouri Veterans Home. (Photo taken 5/16/18).

Overhead mileage sign listing the distances to the three upcoming exits on Interstate 270 West. (Photo taken 5/16/18).

Interstate 270 West at Exit 31B: MO 367 North - Alton, IL (Photo taken 5/16/18).

Interstate 270 West at Exit 31A: MO 367 South - St Louis (Photo taken 5/16/18).

Interstate 270 West at Exit 30A: Old Halls Ferry Road (Photo taken 5/16/18).

Interstate 270 West at Exit 30: Route AC - New Halls Ferry Road (Photo taken 5/16/18).

Interstate 270 West at Exit 29: West Florissant Ave (Photo taken 5/16/18).

Interstate 270 West at Exit 28: Elizabeth Ave / Washington St (Photo taken 5/16/18).

Take Exit 27 to Historic Downtown Florissant. (Photo taken 5/16/18).

Interstate 270 West at Exit 27: Route N - New Florissant Road (Photo taken 5/16/18).

Interstate 270 West approaching Exit 26A - 1 mile. (Photo taken 5/16/18).

Take Exit 26A to Lambert St. Louis Airport. (Photo taken 5/16/18).

Interstate 270 West at Exit 26B: North Hanley Rd / Graham Rd (Photo taken 5/16/18).

Interstate 270 West at Exit 26A: Interstate 170 South - Clayton (Photo taken 5/16/18).

Interstate 270 West at mile marker 26.2. (Photo taken 5/16/18).

Interstate 270 West at Exit 25: US 67 - Lindbergh Blvd (Photo taken 5/16/18).

Interstate 270 West at mile marker 25.2. (Photo taken 5/16/18).

You can use MO 370 West as an alternate route to Interstate 70 West toward Kansas City via Exit 22B, 2 miles ahead. (Photo taken 5/16/18).

Mileage sign on Interstate 270 West. It's 9 miles to St. Charles and 17 miles to Kirkwood. (Photo taken 5/16/18).

Interstate 270 West at Exit 23: McDonnell Blvd (Photo taken 5/16/18).

Interstate 270 West at Exit 22B: MO 370 West - St Charles County (Photo taken 5/16/18).

Take Exit 20A to Lambert St. Louis Airport. (Photo taken 5/16/18).

Interstate 270 South approaching Exits 20A-B - 1 mile. Notice that this is the point on I-270 which it becomes signed as north/south rather than east/west. (Photo taken 5/16/18).

Interstate 270 South at Exit 20C: MO 180 - St. Charles Rock Rd (Photo taken 5/16/18).

Interstate 270 South at Exit 20A: Interstate 70 East - St Louis; Exit 20B: Interstate 70 West - Kansas City (Photo taken 5/16/18).

Interstate 270 South at mile marker 20.6, as it curves to the south. (Photo taken 5/16/18).

Interstate 270 South at mile marker 19. (Photo taken 5/16/18).

Mileage sign listing the distances to the three upcoming exits on Interstate 270 South. (Photo taken 5/16/18).

Interstate 270 South at Exit 17: Dorsett Rd (Photo taken 5/16/18).

Interstate 270 South at Exit 16B: MO 364 West - St Charles (Photo taken 5/16/18).

Interstate 270 South at Exit 16A: Route D - Page Ave (Photo taken 5/16/18).

Interstate 270 South at mile marker 15.4. (Photo taken 5/16/18).

Interstate 270 South at Exit 14: MO 340 - Olive Blvd (Photo taken 5/16/18).

The speed limit remains 60 mph. (Photo taken 5/16/18).

Interstate 270 South at Exit 13: Route AB - Ladue Rd (Photo taken 5/16/18).

Interstate 270 South approaching Exits 12A-B - 1/4 mile. (Photo taken 5/16/18).

Interstate 270 South at Exit 12A: Interstate 64 East / US 40 East / US 61 South - St Louis; Exit 12B: Interstate 64 West / US 40 West / US 61 North - Wentzville (Photo taken 5/16/18).

Interstate 270 South at mile marker 12. (Photo taken 5/16/18).

Interstate 270 South approaching Exit 9 - 3/4 mile. (Photo taken 5/16/18).

Interstate 270 South at Exit 9: MO 100 - Manchester Rd (Photo taken 5/16/18).

Interstate 270 South at Exit 8: Dougherty Ferry Rd (Photo taken 5/16/18).

Interstate 270 South at Exit 7: Big Bend Rd (Photo taken 5/16/18).

Interstate 270 South approaching Exits 5A-B - 1 mile. (Photo taken 5/16/18).

Interstate 270 South at mile marker 7. (Photo taken 5/16/18).

Take Exit 5B (Interstate 44 West) to Springfield, MO. (Photo taken 5/16/18).

Interstate 270 South at Exit 5B: Interstate 44 West / US 50 West - Tulsa (Photo taken 5/16/18).

Interstate 270 South at mile marker 6, as it passes under Interstate 44. (Photo taken 5/16/18).

Interstate 270 South at Exit 5A: Interstate 44 East / US 50 East / MO 366 East - St Louis (Photo taken 5/16/18).

Interstate 270 South at mile marker 5.4. (Photo taken 5/16/18).

Take Exit 3 to the Ulysses S. Grant National Historic Site. (Photo taken 5/16/18).

Interstate 270 South at Exit 3: MO 30 - Gravois Rd (Photo taken 5/16/18).

Interstate 270 South at Exit 2: MO 21 - Tesson Ferry Rd (Photo taken 5/16/18).

Interstate 270 South approaching Exit 1A - 1 mile. (Photo taken 5/16/18).

This sign warns that Interstate 270 South ends 1 1/4 miles ahead, just beyond the junction of Interstate 55. Stay straight to go onto Interstate 255 East into Illinois. (Photo taken 5/16/18).

Interstate 270 South at Exit 1A: Interstate 55 - Memphis / St Louis; US 61 / US 67 - Lemay Ferry Rd (Photo taken 5/16/18).

Interstate 270 South at mile marker 0.2, as it prepares to come to an end and become Interstate 255 East, which will take traffic across the Mississippi River into Illinois. (Photo taken 5/16/18).