Interstate 270, MissouriRoads of the Mid-South & West > Highways of the State of Missouri > Interstate 70, Missouri > Interstate 270, Missouri

Interstate 270

Interstate 270 forms the majority of the beltway around St. Louis. Starting at Interstate 55 on the southside of the metro area, around the westside to the Mississippi River at Chain of Rocks on the northside.

While in the State of Missouri, I-270 is not multi-plexed.

Interstate 270 has what MoDOT and the Missouri Highway Patrol call a "Accident Reduction Site". On the first picture (below), notice the warning of heavy traffic. The second picture (below), indicated that crossing the Double White Line is prohibited. Missouri Highway Patrol does monitor and enforce that strictly.

A sign warning motorists.

NB I-270 south of I-70.

Traffic heading to I-70 can not re enter NB I-270 traffic.


Interstates that I-270 crosses in Missouri...


Interstate 55, at Mehlville.


SB I-270 two miles from I-55.

SB I-270 one mile from I-55.

SB I-270 near I-55.

Interstate 255, at Mehlville.

SB I-270 at I-55/255.
Interstate 44, at Sunset Hills.

A BGS on NB I-270.

Another BGS on NB I-270.

Lane makrers on NB I-270.

NB I-270 at I-44.

View of the I-44/I-270 interchange on NB I-270.

NB I-270 over one mile from I-44.

NB I-270 less than a miles from I-44.

Lane markers on NB I-270 for I-44.

NB I-270 at EB I-44.

NB I-270 near WB I-44.

NB I-270 at WB I-44.

Interstate 64, at Westwood.

A mileage sign on NB I-270.

A BGS one mile from I-64 on NB I-270.

The lane markers on NB I-270.

NB I-270 at I-64.

NB I-270 one mile from I-64.

NB I-270 near I-64.

NB I-270 at I-64.
Interstate 70, at Bridgeton.

The first BGS on NB I-270.

Lane markers on NB I-270.

Another set of BGS's on NB I-270.

NB I-270 near I-70.

NB I-270 at I-70.

NB I-270 over one mile from I-70.

Lane markers on NB I-270 for I-70.

A BGS for WB I-70 on NB I-270.

Lane markers on NB I-270 for I-70.

NB I-270 near I-70.

NB I-270 just before I-70.

NB I-270 at I-70.
Interstate 170, at Hazelwood.

The two mile BGS on NB I-270.

A BGS on NB I-270 near I-70.

EB I-270 a quarter mile from I-170.

EB I-270 at I-170.

WB I-270 near I-170.

WB I-270 at I-170.

Info on I-270's Parent Route.



The Mississippi River Bridge of I-270. Picture from the Chain of Rocks Bridge.

WB I-270 at the Missouri State Line.

EB I-270 crossing the Mississippi River.

WB I-270 at the Missouri Welcome Sign.

EB I-270 on the Missouri side of the Mississippi River.

A BGS on SB MO St Rt 367.

WB I-270 near Ferguson.

NB I-270 in Bridgeton.

A junction marker on WB MO St Rt 180.

A advisory BGS on EB I-70 in St. Charles County.

A BGS on EB MO St Rt 364. NOTE: The control cities. Tulsa is a control city for I-44 and U.S. Rt. 50. Memphis is the control city for I-55.

A BGS on NB I-270.

A guide marker on Lackland Road.

NB I-270 near MO St Rt 364.

NB I-270 south of MO St Rt 364.

NB I-270 south of Manchester.

NB I-270 south of Dougherty Ferry.

NB I-270 near Big Bend.

NB I-270 north of I-44/U.S. Rt. 50.

NB I-270 at I-44/U.S. 50.

A sign on EB I-44 indicating how to by-pass the Metro-Area.

NB I-270 about a mile south of I-44.

NB I-270 near Fenton.

NB I-270 south of I-44/U.S. Rt. 50.

WB I-270 west of Gravois.

A junction marker on WB MO St Rt 30.

A guide marker on EB MO St Rt 30.

WB I-270 at Gravois.

WB I-270 east of Gravois.

WB I-270 at Tesson Ferry.

WB I-270 near Tesson Ferry.

WB I-270 east of Tesson Ferry.

WB I-270 west of I-55/255.

A BGS for I-55/255/270 on the ramp from U.S. Rt. 50/61/67.

A BGS on SB I-55.

The western end marker for I-255.

The southern end of I-270.

Southbound I-270 near I-55 in South County indicating the end of I-270 and the route number change to I-255

31 December 2014