St. Louis Work Zones Aug. 14- Aug. 20

ST. LOUIS —Drivers in north St. Louis County heading from Interstate I-270 to Interstate 170 may want to allow extra time this weekend during upcoming construction.

MoDOT will close one lane of the ramp from westbound I-270 to southbound I-170 (Exit 26A) starting Friday, August 15 at 8 p.m.  The lane will reopen by Monday August 18 at 6 a.m.

Traffic may be delayed during the closure.

For real-time roadway weather conditions, go to http://traveler.modot.org/map. For real-time traffic, visit Welcome to Gateway Guide! | Missouri Department of Transportation (modot.org). All work is subject to change and may be shifted due to inclement weather. 

Motorists should be aware of the following ongoing closures:

  • I-55, St. Louis City, one southbound lane closed from I-44 to north of Bates and two southbound lanes closed north of Bates to north of Weber through 2025.
  • I-55, St. Louis City and County, one northbound lane closed from north of Reavis Barracks to north of Bayless and two northbound lanes closed from north of Bayless to Virginia through 2025.
  • I-55, St. Louis City, the ramp from Virginia to southbound is closed through December 2025.
  • I-55, St. Louis City, the ramp from southbound to Loughborough and the Loughborough on-ramp to southbound will be closed through December 2025.
  • I-55, St. Louis City, the ramp from Lafayette/Truman to southbound is closed through 2025.
  • I-55, St. Louis City, the ramp from Germania to northbound is closed through 2025.
  • I-55, St. Louis City, the ramp from southbound to Germania is closed through 2025.
  • I-170, St. Louis County, one northbound lane closed at westbound I-70 to overpass of westbound I-70 over northbound I-170.
  • I-270, St. Louis, County, one northbound lane closed at I-44.
  • I-270, St. Louis County, various northbound and southbound lanes narrowed between I-64 and Olive through late 2025.
  • I-270, St. Louis County, Conway closed under I-270 through fall 2025.
  • I-270, St. Louis County, westbound exit ramp to Riverview Drive closed.
  • I-270, St. Louis County, on ramp from Riverview Drive to westbound I-270 closed.
  • I-270, St. Louis County, the ramp from eastbound to southbound I-170 will be closed through September.
  • Route 21, one lane northbound and southbound will be closed Musick to Tesson Creek Estates through late 2025.
  • Route 67, St. Louis County, northbound and southbound Route 67 loop ramps to Route D closed. Route D westbound and eastbound loop ramps to Route 67 closed.
  • Route 67, St. Louis County, one northbound and one southbound lane closed at Route D.
  • Route 141, one southbound lane closed just north of I-70.
  • Route 141, part of exit lane to eastbound I-70 entrance ramp, is closed. The ramp remains open.
  • Route 141, St. Louis County, one southbound lane closed at I-64 through 2025.
  • Route N, St. Louis County, one lane closed southbound from south of I-70 to Augusta.
  • Route N, St. Louis County, one lane permanently closed northbound from Route 115 to Bermuda.
  • Route AC, St. Louis County, one northbound and one southbound lane closed at Maline Creek (just south of Lucas & Hunt).
  • I-64, St. Charles County, two westbound lanes closed on the Daniel Boone Bridge over the Missouri River. One westbound lane remains on the westbound bridge and two westbound lanes shifted to the eastbound bridge through December 2025.
  • Route 61, St. Charles County, the ramp from southbound to westbound I-70 closed through October.
  • Route K, St. Charles County, one lane on and the ramp to eastbound I-64 closed through September.
  • Route MM, Franklin County, closed in both directions between Route T and Coleman Rd.
  • Route 100, Franklin County, one eastbound lane closed on the Eastern Missouri Railroad bridge near Villa Ridge through early September 2025.
  • I-55, Jefferson County, intersection of I-55 and Route 67 closed.
  • I-55, Jefferson County, one lane of northbound/southbound I-55 closed from Route 67 to Route Z.
  • I-55, Jefferson County, three left turn lanes closed at McNutt under the interstate. Traffic will move to the outside lanes. Drivers will be able to make a left turn onto the interstate ramp.
  • I-55, Jefferson County, the ramp from southbound Route 67 to southbound I-55 will be closed through September 2025.
  • I-55, Jefferson County, one lane closed on Herky Horine Road under southbound through October.
  • Route 67, Jefferson County, one southbound lane closed at I-55.
  • Route 67, Jefferson County, the southbound 67 to southbound I-55 loop ramp closed.
  • Route Z, Jefferson County, three middle lanes closed in the center of Route Z. All traffic is pushed to the outside lanes. 

Please see the list of daily road closures, weather permitting: 

Thursday, August 14

  • I-64, St. Louis City, 6 a.m. to 2 p.m., one eastbound lane closed from 22nd to 6th St.
  • I-64, St. Louis City, 9 a.m. to 3 p.m., one westbound lane closed from Broadway to 22nd
  • I-70, St. Louis County, 8 p.m. to 5 a.m., the shoulder is closed on the ramp from eastbound I-70 to northbound I-170.
  • I-70, St. Louis County, 7 p.m.to 5 a.m., the shoulder is closed on the ramp from westbound to southbound I-170.
  • I-70, St. Louis County, 7 p.m. to 5 a.m., one lane closed westbound between Hanley and McDonnell and from the northbound I-170 overpass to the eastbound to northbound I-170 overpass.
  • I-70, St. Louis County, 8 p.m. to 5 a.m., one lane closed eastbound from McDonnell to Hanley and from the southbound I-170 overpass to the westbound to southbound I-170 overpass.
  • I-70, St. Louis County, 8:30 p.m. to 5 a.m., the shoulder on the ramp from southbound I-170 to eastbound closed.
  • I-170, St. Louis County, 8:30 p.m. to 5 a.m., one southbound lane closed from Scudder Road to Route 115 and one lane and ramp under the westbound I-70 overpass closed.
  • I-170, St. Louis County, 9 p.m. to 6 a.m., one northbound lane closed from Scudder Road to Route 115 and one lane and ramp under the eastbound I-70 overpass closed.
  • I-170, St. Louis County, 6 a.m. to 5 p.m., one lane closed on Pershall under I-270 from Hanley to Hazelwood Avenue.
  • I-255, St. Louis County, 8 p.m. to 5 a.m., one westbound lane closed from Koch Road to I-55.
  • Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed at Musick to Concord School Road.
  • Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed at East Concord School Road to Lindbergh.
  • Route 61/67, St. Louis County, 8 a.m. to 3 p.m., one southbound and northbound lane closed from the Conway/German Intersection to Conway Road.
  • Route 100, St. Louis County, 7 p.m. to 6 a.m., one eastbound and westbound lane closed between Booness Lane and Route 109.
  • Route 109, St. Louis County, 6 a.m. to 3 p.m., one lane closed in the roundabout at Route CC.
  • Route 109, St. Louis County, 7 a.m. to 3 p.m., one lane closed at Clayton.
  • Route 141, St. Louis County, midnight to 5 a.m., one southbound lane closed north of I-70
  • Route 141, St. Louis County, midnight to 5 a.m., one lane closed on the exit from eastbound I-70 to northbound.
  • Route 141, St. Louis County, 8 p.m. to 5 a.m., one lane closed northbound from Casino Center Drive to Rider Trail South.
  • Route 141, St. Louis County, 10 p.m. to 5 a.m., the ramp from northbound to eastbound I-70, the ramp from northbound to westbound I-70 and the ramp from westbound I-70 to northbound will be closed.
  • Route 141, St. Louis County, 8 a.m. to 2 p.m., the right turn lanes closed in each direction at Astra Way.
  • Route 267, St. Louis County, 5 a.m. to 2 p.m., one lane closed northbound and southbound from Will to Buckley.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., each right turn lane closed and one lane closed eastbound and westbound at North Hanley Road.
  • Route 340, St. Louis County, 8 p.m. to 6 a.m., one westbound lane closed from Mosely to I-270.
  • Route 367, St. Louis County, 8 a.m. to 2 p.m., the center turn lanes at St. Cyr will be closed in all directions.
  • Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed between Chasselle and Ladue Pine Woods Place. Flaggers will direct traffic through the work zone.
  • Route AB, St. Louis County, 7 p.m. to 5 a.m., one lane closed eastbound or westbound from Woods Mill to Mason. Flaggers will direct traffic through the work zone.
  • Route CC, St. Louis County, 8 a.m. to 2 p.m., the right turn lanes at Chesterfield Airport Road will be closed in all directions.
  • I-64, St. Charles County, 8 p.m. to 6 a.m., one westbound lane closed between the I-70/I-64 interchange and Prospect Road.
  • I-64, St. Charles County, 7:30 p.m. to 5:30 a.m., one eastbound lane closed between the I-70/I-64 interchange and Prospect Road.
  • I-64, St. Charles County, 7:30 p.m. to 5:30 a.m., one eastbound lane closed from Route 364 to Route K.
  • I-64, St. Charles County, 8 p.m. to 7 a.m., one westbound lane closed from Lake St. Louis Boulevard to Route K.
  • I-70, St. Charles County, 9 p.m. to 5:30 a.m., one lane closed eastbound and westbound from Route Z to Route A.
  • I-70, St. Charles County, 8 p.m. to 6 a.m., one eastbound and westbound lane closed under the Route W bridge in Foristell.
  • Route D, St. Charles County, 8 a.m. to 4 p.m., one lane closed between Beene Road and Callaway Fork.
  • Route Y, St. Charles County, 9 a.m. to 3 p.m., one lane closed at White Branch.
  • Route Z, St. Charles County, 10 p.m. to 5 a.m., all lanes closed on Route Z under I-70.
  • I-44, Franklin County, 8 p.m. to 5 a.m., the eastbound I-44 exit closed at 242, and Route AH over I-44 closed.
  • Route 50, Franklin County, 6 p.m. to 5 a.m. and 8 a.m. to 3 p.m., one eastbound and westbound lane closed between Independence Drive to Route BB.
  • Route 50, Franklin County, 6 p.m. to 5 a.m. and 8 a.m. to 3 p.m., one eastbound and westbound lane closed from Gasconade/Franklin County line to Route C.
  • Route F&O, Franklin County, 7 a.m. to 4 p.m., one lane closed from Route N to Osage.
  • Route KK, Franklin County, 7 a.m. to 3 p.m., one lane closed between Route C and Route 185 and Route 185 to Route 100. Flaggers will direct traffic through the work zone.
  • Route MM, Franklin County, 5 p.m. to 5 a.m., one eastbound/westbound lane closed from Route 30 to Route M. Flaggers will direct traffic through the work zone.
  • Route MM, Franklin County, 6 a.m. to 4 p.m., one lane closed between Beauty Dr. and Purina Farms.
  • I-55, Jefferson County, 8 p.m.to 6 a.m., one lane closed southbound at Route 67. 

Friday, August 15

  • I-64, St. Louis City, 6 a.m. to 2 p.m., one eastbound lane closed from 22nd to 6th St.
  • I-64, St. Louis City, 9 a.m. to 3 p.m., one westbound lane closed from Broadway to 22nd
  • I-70, St. Louis County, 8 p.m. to 7 a.m., the shoulder is closed on the ramp from eastbound to northbound I-170.
  • I-70, St. Louis County, 8 p.m.to 7 a.m., the shoulder is closed on the ramp from westbound to southbound I-170.
  • I-70, St. Louis County, 8 p.m. to 7 a.m., one lane closed westbound between Hanley and McDonnell and from the northbound I-170 overpass to the eastbound to northbound I-170 overpass.
  • I-70, St. Louis County, 9 p.m. to 7 a.m., one lane closed eastbound from McDonnell to Hanley and from the southbound I-170 overpass to the westbound to southbound I-170 overpass.
  • I-70, St. Louis County, 9 p.m. to 6 a.m., the shoulder on the ramp from southbound I-170 to eastbound closed.
  • I-170, St. Louis County, 9 p.m. to 6 a.m., one southbound lane closed from Scudder Road to Route 115 and one lane and ramp under the westbound I-70 overpass closed.
  • I-170, St. Louis County, 9 p.m. to 7 a.m., one northbound lane closed from Scudder Road to Route 115 and one lane and ramp under the eastbound I-70 overpass closed.
  • I-170, St. Louis County, 6 a.m. to 5 p.m., one lane closed on Pershall under I-270 from Hanley to Hazelwood Avenue.
  • I-270, St. Louis County, 8 p.m. until 6 a.m. Monday, one lane closed on the ramp from westbound to southbound I-170.
  • Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed at Musick to Concord School Road.
  • Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed at East Concord School Road to Lindbergh.
  • Route 61/67, St. Louis County, 8 a.m. to 3 p.m., one southbound and northbound lane closed from the Conway/German Intersection to Conway Road.
  • Route 100, St. Louis County, 7 p.m. to 6 a.m., one eastbound and westbound lane closed between Booness Lane and Route 109.
  • Route 109, St. Louis County, 7 a.m. to 3 p.m., one lane closed at Clayton.
  • Route 141, St. Louis County, 8 p.m. to 5 a.m., one lane closed southbound from Rider Trail South to Casino Center Drive.
  • Route 141, St. Louis County, 10 p.m. to 5 a.m., the ramp from southbound to westbound I-70, the ramp from southbound to eastbound I-70, the ramp from eastbound I-70 to southbound and the ramp from westbound I-70 to southbound will be closed.
  • Route 141, St. Louis County, 8 a.m. to 2 p.m., the right turn lanes closed in each direction at Astra Way.
  • Route 267, St. Louis County, 5 a.m. to 2 p.m., one lane closed northbound and southbound from Will to Buckley.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., each right turn lane closed and one lane closed eastbound and westbound at North Hanley Road.
  • Route 340, St. Louis County, 8 p.m. to 6 a.m., one westbound lane closed from Mosely to I-270.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., each right turn lane at Wilson will be closed.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., the center lane at Forest Hills will be closed.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., the right turn lanes at Route 100 will be closed.
  • Route 340, St. Louis County, 7 p.m. to 5 a.m., one lane closed in each direction at Baxter, County Ridge, Kehrs Mill, Marsh and Froesel.
  • Route 367, St. Louis County, 8 a.m. to 2 p.m., the center turn lanes at St. Cyr will be closed in all directions.
  • Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed between Chasselle and Ladue Pine Woods Place. Flaggers will direct traffic through the work zone.
  • Route AB, St. Louis County, 7 p.m. to 5 a.m., one lane closed eastbound or westbound from Woods Mill to Mason. Flaggers will direct traffic through the work zone.
  • Route CC, St. Louis County, 8 a.m. to 2 p.m., the right turn lanes at Chesterfield Airport Road will be closed in all directions.
  • Route CC, St. Louis County, 7 p.m. to 5 a.m., one lane closed in each direction at Chesterfield Airport Road, Edison and Kehrs Mill.
  • I-64, St. Charles County, 8:30 p.m. to 6 a.m., one westbound lane closed between the I-70/I-64 interchange and Prospect Road.
  • I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed between the I-70/I-64 interchange and Prospect Road.
  • I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed from Route 364 to Route K.
  • I-64, St. Charles County, 8:30 p.m. to 7 a.m., one westbound lane closed from Lake St. Louis Boulevard to Route K.
  • I-70, St. Charles County, 9 p.m. to 5:30 a.m., one lane closed eastbound and westbound from Route Z to Route A.
  • I-70, St. Charles County, 8 p.m. to 6 a.m., one eastbound and westbound lane closed under the Route W bridge in Foristell.
  • Route D, St. Charles County, 8 a.m. to 4 p.m., one lane closed between Beene Road and Callaway Fork.
  • Route Z, St. Charles County, 10 p.m. to 5 a.m., all lanes closed on Route Z under I-70.
  • I-44, Franklin County, 8 p.m. to 5 a.m., the eastbound I-44 exit closed at 242, and Route AH over I-44 closed.
  • Route 50, Franklin County, 6 p.m. to 5 a.m. and 8 a.m. to 3 p.m., one eastbound and westbound lane closed between Independence Drive to Route BB.
  • Route 50, Franklin County, 6 p.m. to 5 a.m. and 8 a.m. to 3 p.m., one eastbound and westbound lane closed from Gasconade/Franklin County line to Route C.
  • Route 100, Franklin County, 8 p.m. to 5a.m., one lane closed eastbound and westbound from Route OO to I-44.
  • Route 100, Franklin County, 8 p.m. to 5 a.m., one lane closed on Route 100 east of Gray Summit.
  • Route F&O, Franklin County, 7 a.m. to 4 p.m., one lane closed from Route N to Osage.
  • Route KK, Franklin County, 7 a.m. to 3 p.m., one lane closed between Route C and Route 185 and Route 185 to Route 100. Flaggers will direct traffic through the work zone.
  • Route MM, Franklin County, 5 p.m. to 5 a.m., one eastbound/westbound lane closed from Route 30 to Route M. Flaggers will direct traffic through the work zone.
  • Route MM, Franklin County, 6 a.m. to 4 p.m., one lane closed between Beauty Dr. and Purina Farms.
  • Route MM, Franklin County, 8 p.m. to 5 a.m., one lane closed at Route 100. 

Saturday, August 16

  • I-70, St. Louis County, 9 p.m. to 8 a.m., the shoulder is closed on the ramp from eastbound to northbound I-170.
  • I-70, St. Louis County, 7 p.m.to 8 a.m., the shoulder is closed on the ramp from westbound to southbound I-170.
  • I-70, St. Louis County, 7 p.m. to 8 a.m., one lane closed westbound between Hanley and McDonnell and from the northbound I-170 overpass to the eastbound to northbound I-170 overpass.
  • I-70, St. Louis County, 9 p.m. to 8 a.m., one lane closed eastbound from McDonnell to Hanley and from the southbound I-170 overpass to the westbound to southbound I-170 overpass.
  • I-70, St. Louis County, 9 p.m. to 8 a.m., the shoulder on the ramp from southbound I-170 to eastbound closed.
  • I-170, St. Louis County, 9 p.m. to 8 a.m., one southbound lane closed from Scudder Road to Route 115 and one lane and ramp under the westbound I-70 overpass closed.
  • I-170, St. Louis County, 9 p.m. to 8 a.m., one northbound lane closed from Scudder Road to Route 115 and one lane and ramp under the eastbound I-70 overpass closed.
  • I-170, St. Louis County, 6 a.m. to 5 p.m., one lane closed on Pershall under I-270 from Hanley to Hazelwood Avenue.
  • I-255, St. Louis County, midnight until 5 a.m. Monday, one lane closed westbound between Koch Road and I-55
  • I-270, St. Louis County. until 6 a.m. Monday, one lane closed on the ramp from westbound to southbound I-170.
  • Route 100, St. Louis County, 7 p.m. to 6 a.m., one eastbound and westbound lane closed between Booness Lane and Route 109.
  • I-64, St. Charles County, 8:30 p.m. to 6 a.m., one westbound lane closed between the I-70/I-64 interchange and Prospect Road.
  • I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed between the I-70/I-64 interchange and Prospect Road.
  • I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed from Route 364 to Route K.
  • I-64, St. Charles County, 8:30 p.m. to 7 a.m., one westbound lane closed from Lake St. Louis Boulevard to Route K.
  • I-70, St. Charles County, 7 a.m. to 4 p.m., one lane closed eastbound over the Blanchette Bridge. 

Sunday, August 17

  • I-255, St. Louis County, midnight until 5 a.m. Monday, one lane closed westbound between Koch Road and I-55
  • I-270, St. Louis County. until 6 a.m. Monday, one lane closed on the ramp from westbound to southbound I-170.
  • I-44, Franklin County, 8 p.m. to 5 a.m., the eastbound I-44 exit closed at 242, and Route AH over I-44 closed.
  • Route KK, Franklin County, 7 a.m. to 3 p.m., one lane closed between Route C and Route 185 and Route 185 to Route 100. Flaggers will direct traffic through the work zone. 

Monday, August 18

  • I-64, St. Louis City, 6 a.m. to 2 p.m., one eastbound lane closed from 22nd to 6th St.
  • I-64, St. Louis City, 9 a.m. to 3 p.m., one westbound lane closed from Broadway to 22nd
  • I-70, St. Louis County, 8 p.m. to 5 a.m., the shoulder is closed on the ramp from eastbound I-70 to northbound I-170.
  • I-70, St. Louis County, 7 p.m.to 5 a.m., the shoulder is closed on the ramp from westbound to southbound I-170.
  • I-70, St. Louis County, 7 p.m. to 5 a.m., one lane closed westbound between Hanley and McDonnell and from the northbound I-170 overpass to the eastbound to northbound I-170 overpass.
  • I-70, St. Louis County, 8 p.m. to 5 a.m., one lane closed eastbound from McDonnell to Hanley and from the southbound I-170 overpass to the westbound to southbound I-170 overpass.
  • I-70, St. Louis County, 8:30 p.m. to 5 a.m., the shoulder on the ramp from southbound I-170 to eastbound closed.
  • I-70, St. Louis County, 7 p.m. to 5 a.m., the ramp from eastbound to Route 115 closed.
  • I-170, St. Louis County, 8:30 p.m. to 5 a.m., one southbound lane closed from Scudder Road to Route 115 and one lane and ramp under the westbound I-70 overpass closed.
  • I-170, St. Louis County, 9 p.m. to 6 a.m., one northbound lane closed from Scudder Road to Route 115 and one lane and ramp under the eastbound I-70 overpass closed.
  • I-170, St. Louis County, 6 a.m. to 5 p.m., one lane closed on Pershall under I-270 from Hanley to Hazelwood Avenue.
  • I-255, St. Louis County, 8 p.m. to 5 a.m., one westbound lane closed from Koch Road to I-55.
  • Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed at Musick to Concord School Road.
  • Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed at East Concord School Road to Lindbergh.
  • Route 61/67, St. Louis County, 8 a.m. to 3 p.m., one southbound and northbound lane closed from the Conway/German Intersection to Conway Road.
  • Route 100, St. Louis County, 7 p.m. to 6 a.m., one lane closed eastbound and westbound between Route OO and Booness Lane. A pilot car will help direct traffic through the work zone.
  • Route 109, St. Louis County, 6 a.m. to 3 p.m., one lane closed in the roundabout at Route CC.
  • Route 109, St. Louis County, 7 a.m. to 3 p.m., one lane closed at Clayton.
  • Route 115, St. Louis County, 7 p.m. to 5 a.m., one lane closed eastbound and westbound from I-70 to I-170.
  • Route 141, St. Louis County, 8 p.m. to 6 a.m., one lane closed northbound and southbound from Casino Center Drive to Rider Trail South.
  • Route 141, St. Louis County, 8 a.m. to 2 p.m., the right turn lanes closed in each direction at Astra Way.
  • Route 267, St. Louis County, 5 a.m. to 2 p.m., one lane closed northbound and southbound from Will to Buckley.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., each right turn lane closed and one lane closed eastbound and westbound at North Hanley Road.
  • Route 340, St. Louis County, 8 p.m. to 6 a.m., one westbound lane closed from Mosely to I-270.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., each right turn lane at Wilson will be closed.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., the center lane at Forest Hills will be closed.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., the right turn lanes at Route 100 will be closed.
  • Route 340, St. Louis County, 7 p.m. to 5 a.m., one lane closed in each direction at Baxter, County Ridge, Kehrs Mill, Marsh and Froesel.
  • Route 367, St. Louis County, 8 a.m. to 2 p.m., the center turn lanes at St. Cyr will be closed in all directions.
  • Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed between Chasselle and Ladue Pine Woods Place. Flaggers will direct traffic through the work zone.
  • Route CC, St. Louis County, 8 a.m. to 2 p.m., the right turn lanes at Chesterfield Airport Road will be closed in all directions.
  • Route CC, St. Louis County, 7 p.m. to 5 a.m., one lane closed in each direction at Chesterfield Airport Road, Edison and Kehrs Mill.
  • I-64, St. Charles County, 8 p.m. to 6 a.m., one westbound lane closed between the I-70/I-64 interchange and Prospect Road.
  • I-64, St. Charles County, 7:30 p.m. to 5:30 a.m., one eastbound lane closed between the I-70/I-64 interchange and Prospect Road.
  • I-64, St. Charles County, 7:30 p.m. to 5:30 a.m., one eastbound lane closed from Route 364 to Route K.
  • I-64, St. Charles County, 8 p.m. to 7 a.m., one westbound lane closed from Lake St. Louis Boulevard to Route K.
  • I-64, St. Charles County, 9 p.m. to 5 a.m., the ramp from westbound to westbound I-70 will be closed.
  • I-70, St. Charles County, 9 p.m. to 5:30 a.m., one lane closed eastbound and westbound from Route Z to Route A.
  • I-70, St. Charles County, 8 p.m. to 6 a.m., one eastbound and westbound lane closed under the Route W bridge in Foristell.
  • Route Z, St. Charles County, 7:30 a.m. to 3:30 p.m., one lane closed northbound and southbound from Route D to Route N. A flagger will help direct traffic through the work zone.
  • Route Z, St. Charles County, 10 p.m. to 5 a.m., all lanes closed on Route Z under I-70.
  • I-44, Franklin County, 8 p.m. to 5 a.m., the eastbound I-44 exit closed at 242, and Route AH over I-44 closed.
  • Route 50, Franklin County, 6 p.m. to 5 a.m. and 8 a.m. to 3 p.m., one eastbound and westbound lane closed between Independence Drive to Route BB.
  • Route 50, Franklin County, 6 p.m. to 5 a.m. and 8 a.m. to 3 p.m., one eastbound and westbound lane closed from Gasconade/Franklin County line to Route C.
  • Route 100, Franklin County, 7 p.m. to 5 a.m., one lane closed eastbound and westbound from Route OO to I-44.
  • Route F&O, Franklin County, 7 a.m. to 4 p.m., one lane closed from Route N to Osage.
  • Route KK, Franklin County, 7 a.m. to 3 p.m., one lane closed between Route C and Route 185 and Route 185 to Route 100. Flaggers will direct traffic through the work zone.
  • Route MM, Franklin County, 5 p.m. to 5 a.m., one eastbound/westbound lane closed from Route 30 to Route M. Flaggers will direct traffic through the work zone.
  • Route MM, Franklin County, 6 a.m. to 4 p.m., one lane closed between Beauty Dr. and Purina Farms. 

Tuesday, August 19

  • I-64, St. Louis City, 6 a.m. to 2 p.m., one eastbound lane closed from 22nd to 6th St.
  • I-64, St. Louis City, 9 a.m. to 3 p.m., one westbound lane closed from Broadway to 22nd
  • I-70, St. Louis County, 8 p.m. to 5 a.m., the shoulder is closed on the ramp from eastbound I-70 to northbound I-170.
  • I-70, St. Louis County, 7 p.m.to 5 a.m., the shoulder is closed on the ramp from westbound to southbound I-170.
  • I-70, St. Louis County, 7 p.m. to 5 a.m., one lane closed westbound between Hanley and McDonnell and from the northbound I-170 overpass to the eastbound to northbound I-170 overpass.
  • I-70, St. Louis County, 8 p.m. to 5 a.m., one lane closed eastbound from McDonnell to Hanley and from the southbound I-170 overpass to the westbound to southbound I-170 overpass.
  • I-70, St. Louis County, 8:30 p.m. to 5 a.m., the shoulder on the ramp from southbound I-170 to eastbound closed.
  • I-70, St. Louis County, 7 p.m. to 5 a.m., the ramp from eastbound to Route 115 closed.
  • I-170, St. Louis County, 8:30 p.m. to 5 a.m., one southbound lane closed from Scudder Road to Route 115 and one lane and ramp under the westbound I-70 overpass closed.
  • I-170, St. Louis County, 9 p.m. to 6 a.m., one northbound lane closed from Scudder Road to Route 115 and one lane and ramp under the eastbound I-70 overpass closed.
  • I-170, St. Louis County, 6 a.m. to 5 p.m., one lane closed on Pershall under I-270 from Hanley to Hazelwood Avenue.
  • I-255, St. Louis County, 8 p.m. to 5 a.m., one westbound lane closed from Koch Road to I-55.
  • Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed at Musick to Concord School Road.
  • Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed at East Concord School Road to Lindbergh.
  • Route 61/67, St. Louis County, 8 a.m. to 3 p.m., one southbound and northbound lane closed from the Conway/German Intersection to Conway Road.
  • Route 100, St. Louis County, 7 p.m. to 6 a.m., one lane closed eastbound and westbound between Route OO and Booness Lane. A pilot car will help direct traffic through the work zone.
  • Route 109, St. Louis County, 6 a.m. to 3 p.m., one lane closed in the roundabout at Route CC.
  • Route 109, St. Louis County, 7 a.m. to 3 p.m., one lane closed at Clayton.
  • Route 115, St. Louis County, 7 p.m. to 5 a.m., one lane closed eastbound and westbound from I-70 to I-170.
  • Route 141, St. Louis County, 9 a.m. to 3 p.m., one lane closed between I-64 and the exit for S. Woods Mill Road.
  • Route 141, St. Louis County, 8 p.m. to 6 a.m., one lane closed northbound and southbound from Casino Center Drive to Rider Trail South.
  • Route 141, St. Louis County, 8 a.m. to 2 p.m., the right turn lanes closed in each direction at Astra Way.
  • Route 267, St. Louis County, 5 a.m. to 2 p.m., one lane closed northbound and southbound from Will to Buckley.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., each right turn lane closed and one lane closed eastbound and westbound at North Hanley Road.
  • Route 340, St. Louis County, 8 p.m. to 6 a.m., one westbound lane closed from Mosely to I-270.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., each right turn lane at Wilson will be closed.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., the center lane at Forest Hills will be closed.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., the right turn lanes at Route 100 will be closed.
  • Route 340, St. Louis County, 7 p.m. to 5 a.m., one lane closed in each direction at Baxter, County Ridge, Kehrs Mill, Marsh and Froesel.
  • Route 367, St. Louis County, 8 a.m. to 2 p.m., the center turn lanes at St. Cyr will be closed in all directions.
  • Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed between Chasselle and Ladue Pine Woods Place. Flaggers will direct traffic through the work zone.
  • Route CC, St. Louis County, 8 a.m. to 2 p.m., the right turn lanes at Chesterfield Airport Road will be closed in all directions.
  • Route CC, St. Louis County, 7 p.m. to 5 a.m., one lane closed in each direction at Chesterfield Airport Road, Edison and Kehrs Mill.
  • I-64, St. Charles County, 8 p.m. to 6 a.m., one westbound lane closed between the I-70/I-64 interchange and Prospect Road.
  • I-64, St. Charles County, 7:30 p.m. to 5:30 a.m., one eastbound lane closed between the I-70/I-64 interchange and Prospect Road.
  • I-64, St. Charles County, 7:30 p.m. to 5:30 a.m., one eastbound lane closed from Route 364 to Route K.
  • I-64, St. Charles County, 8 p.m. to 7 a.m., one westbound lane closed from Lake St. Louis Boulevard to Route K.
  • I-70, St. Charles County, 9 p.m. to 5:30 a.m., one lane closed eastbound and westbound from Route Z to Route A.
  • I-70, St. Charles County, 8 p.m. to 6 a.m., one eastbound and westbound lane closed under the Route W bridge in Foristell.
  • Route Z, St. Charles County, 7:30 a.m. to 3:30 p.m., one lane closed northbound and southbound from Route D to Route N. A flagger will help direct traffic through the work zone.
  • Route Z, St. Charles County, 10 p.m. to 5 a.m., all lanes closed on Route Z under I-70.
  • I-44, Franklin County, 8 p.m. to 5 a.m., the eastbound I-44 exit closed at 242, and Route AH over I-44 closed.
  • Route 50, Franklin County, 6 p.m. to 5 a.m. and 8 a.m. to 3 p.m., one eastbound and westbound lane closed between Independence Drive to Route BB.
  • Route 50, Franklin County, 6 p.m. to 5 a.m. and 8 a.m. to 3 p.m., one eastbound and westbound lane closed from Gasconade/Franklin County line to Route C.
  • Route 100, Franklin County, 7 p.m. to 5 a.m., one lane closed eastbound and westbound from Route OO to I-44.
  • Route F&O, Franklin County, 7 a.m. to 4 p.m., one lane closed from Route N to Osage.
  • Route KK, Franklin County, 7 a.m. to 3 p.m., one lane closed between Route C and Route 185 and Route 185 to Route 100. Flaggers will direct traffic through the work zone.
  • Route MM, Franklin County, 5 p.m. to 5 a.m., one eastbound/westbound lane closed from Route 30 to Route M. Flaggers will direct traffic through the work zone.
  • Route MM, Franklin County, 6 a.m. to 4 p.m., one lane closed between Beauty Dr. and Purina Farms. 

Wednesday, August 20

  • I-64, St. Louis City, 6 a.m. to 2 p.m., one eastbound lane closed from 22nd to 6th St.
  • I-64, St. Louis City, 9 a.m. to 3 p.m., one westbound lane closed from Broadway to 22nd
  • I-70, St. Louis County, 8 p.m. to 5 a.m., the shoulder is closed on the ramp from eastbound I-70 to northbound I-170.
  • I-70, St. Louis County, 7 p.m.to 5 a.m., the shoulder is closed on the ramp from westbound to southbound I-170.
  • I-70, St. Louis County, 7 p.m. to 5 a.m., one lane closed westbound between Hanley and McDonnell and from the northbound I-170 overpass to the eastbound to northbound I-170 overpass.
  • I-70, St. Louis County, 8 p.m. to 5 a.m., one lane closed eastbound from McDonnell to Hanley and from the southbound I-170 overpass to the westbound to southbound I-170 overpass.
  • I-70, St. Louis County, 8:30 p.m. to 5 a.m., the shoulder on the ramp from southbound I-170 to eastbound closed.
  • I-170, St. Louis County, 8:30 p.m. to 5 a.m., one southbound lane closed from Scudder Road to Route 115 and one lane and ramp under the westbound I-70 overpass closed.
  • I-170, St. Louis County, 9 p.m. to 6 a.m., one northbound lane closed from Scudder Road to Route 115 and one lane and ramp under the eastbound I-70 overpass closed.
  • I-170, St. Louis County, 6 a.m. to 5 p.m., one lane closed on Pershall under I-270 from Hanley to Hazelwood Avenue.
  • I-255, St. Louis County, 8 p.m. to 5 a.m., one westbound lane closed from Koch Road to I-55.
  • Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed at Musick to Concord School Road.
  • Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed at East Concord School Road to Lindbergh.
  • Route 61/67, St. Louis County, 8 a.m. to 3 p.m., one southbound and northbound lane closed from the Conway/German Intersection to Conway Road.
  • Route 100, St. Louis County, 7 p.m. to 6 a.m., one lane closed eastbound and westbound between Route OO and Booness Lane. A pilot car will help direct traffic through the work zone.
  • Route 109, St. Louis County, 6 a.m. to 3 p.m., one lane closed in the roundabout at Route CC.
  • Route 109, St. Louis County, 7 a.m. to 3 p.m., one lane closed at Clayton.
  • Route 115, St. Louis County, 7 p.m. to 5 a.m., one lane closed eastbound and westbound from I-70 to I-170.
  • Route 141, St. Louis County, 9 a.m. to 3 p.m., one lane closed between I-64 and the exit for S. Woods Mill Road.
  • Route 141, St. Louis County, 8 p.m. to 6 a.m., one lane closed northbound and southbound from Casino Center Drive to Rider Trail South.
  • Route 141, St. Louis County, 8 a.m. to 2 p.m., the right turn lanes closed in each direction at Astra Way.
  • Route 267, St. Louis County, 5 a.m. to 2 p.m., one lane closed northbound and southbound from Will to Buckley.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., each right turn lane closed and one lane closed eastbound and westbound at North Hanley Road.
  • Route 340, St. Louis County, 8 p.m. to 6 a.m., one westbound lane closed from Mosely to I-270.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., each right turn lane at Wilson will be closed.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., the center lane at Forest Hills will be closed.
  • Route 340, St. Louis County, 8 a.m. to 2 p.m., the right turn lanes at Route 100 will be closed.
  • Route 340, St. Louis County, 7 p.m. to 5 a.m., one lane closed in each direction at Baxter, County Ridge, Kehrs Mill, Marsh and Froesel.
  • Route 367, St. Louis County, 8 a.m. to 2 p.m., the center turn lanes at St. Cyr will be closed in all directions.
  • Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed between Chasselle and Ladue Pine Woods Place. Flaggers will direct traffic through the work zone.
  • Route CC, St. Louis County, 8 a.m. to 2 p.m., the right turn lanes at Chesterfield Airport Road will be closed in all directions.
  • Route CC, St. Louis County, 7 p.m. to 5 a.m., one lane closed in each direction at Chesterfield Airport Road, Edison and Kehrs Mill.
  • I-64, St. Charles County, 8 p.m. to 6 a.m., one westbound lane closed between the I-70/I-64 interchange and Prospect Road.
  • I-64, St. Charles County, 7:30 p.m. to 5:30 a.m., one eastbound lane closed between the I-70/I-64 interchange and Prospect Road.
  • I-64, St. Charles County, 7:30 p.m. to 5:30 a.m., one eastbound lane closed from Route 364 to Route K.
  • I-64, St. Charles County, 8 p.m. to 7 a.m., one westbound lane closed from Lake St. Louis Boulevard to Route K.
  • I-70, St. Charles County, 9 p.m. to 5:30 a.m., one lane closed eastbound and westbound from Route Z to Route A.
  • I-70, St. Charles County, 8 p.m. to 6 a.m., one eastbound and westbound lane closed under the Route W bridge in Foristell.
  • Route Z, St. Charles County, 7:30 a.m. to 3:30 p.m., one lane closed northbound and southbound from Route D to Route N. A flagger will help direct traffic through the work zone.
  • Route Z, St. Charles County, 10 p.m. to 5 a.m., all lanes closed on Route Z under I-70.
  • I-44, Franklin County, 8 p.m. to 5 a.m., the eastbound I-44 exit closed at 242, and Route AH over I-44 closed.
  • Route 50, Franklin County, 6 p.m. to 5 a.m. and 8 a.m. to 3 p.m., one eastbound and westbound lane closed between Independence Drive to Route BB.
  • Route 50, Franklin County, 6 p.m. to 5 a.m. and 8 a.m. to 3 p.m., one eastbound and westbound lane closed from Gasconade/Franklin County line to Route C.
  • Route 100, Franklin County, 7 p.m. to 5 a.m., one lane closed eastbound and westbound from Route OO to I-44.
  • Route F&O, Franklin County, 7 a.m. to 4 p.m., one lane closed from Route N to Osage.
  • Route KK, Franklin County, 7 a.m. to 3 p.m., one lane closed between Route C and Route 185 and Route 185 to Route 100. Flaggers will direct traffic through the work zone.
  • Route MM, Franklin County, 5 p.m. to 5 a.m., one eastbound/westbound lane closed from Route 30 to Route M. Flaggers will direct traffic through the work zone.
  • Route MM, Franklin County, 6 a.m. to 4 p.m., one lane closed between Beauty Dr. and Purina Farms. 

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