St. Louis Work Zones August 20-26

ST. LOUIS – Crews with the Improve I-70 Warrenton to Wentzville Project will close all westbound lanes of Interstate 70 at the I-70/I-64/U.S. 61 interchange overnight August 24-28. Crews will be doing work on the existing bridge girders. All work is weather permitting.

All westbound lanes of I-70 will be closed overnight from 9 p.m. to 5 a.m. Monday, August 24 through Friday, August 28. Detours will be in place for westbound I-70 and southbound U.S. Route 61:

  • Westbound I-70 will be reduced to one lane and detour to northbound Route 61, (exit number 210B), turn around at Pittman Avenue, and use the westbound I-70 ramp to access westbound I-70.
  • Westbound I-70 traffic exiting to eastbound I-64 will detour exiting to northbound Route 61, (exit number 210B), turn around at Pitman Avenue, and use the eastbound I-64 ramp from Luetkenhaus Boulevard.

All work is weather permitting.

For more on roadway closures due to construction, additional work zone information, and real-time roadway weather conditions, go to  http://traveler.modot.org/map.  For real-time traffic, visit www.gatewayguide.com.

Motorists should be aware of the following ongoing closures:

  • I-44, St. Louis City, westbound express lanes and Broadway exit closed.
  • I-70, St. Louis City, westbound Broadway entrance ramp closed.
  • I-270, St. Louis County, on-ramp from Riverview Drive to westbound I-270 closed.
  • I-270, St. Louis County, the exit ramp closed from eastbound I-270 to Riverview through late August 2026.
  • 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 67, St. Louis County, one lane closed northbound from the Missouri River to just north of Route 94 through late 2027.
  • Route 67, St. Louis County, one northbound lane closed from Signal Hill Dr. to Bernhardt Ave.
  • Route 100, St. Louis County, one eastbound and westbound lane closed from Mason Lane to Barrett Station Road through late 2026.
  • Route 100, St. Louis County, one eastbound and westbound lane closed from Weidman Rd. to Manchester Meadows through late 2026.
  • Route 366, St. Louis County, one eastbound and westbound lane closed between Watson Industrial to Pardee, through the end of 2026.
  • Route D, St. Louis County, one lane closed west of Woodson through October.
  • I-70, St. Charles County, the eastbound I-70 on ramp from David Hoekel Parkway closed through late August.
  • Route 94, St. Charles County, one left-turn lane for the on-ramp to the eastbound 370 closed through late 2027.
  • Route 370, St. Charles County, two westbound lanes moved to the eastbound Discovery Bridge across the Missouri River. Two eastbound lanes shifted to the right. Temporary barrier to divide eastbound and westbound lanes.
  • Veterans Memorial Parkway, St. Charles County, closed between Callahan Rd. to Corporate Parkway.
  • I-55, Jefferson County, one northbound and southbound lane closed from Meramec Bottom to Route 141.
  • I-55, Jefferson County, the southbound on and off ramps connecting to Route Z closed.
  • Route 61/67, Jefferson County, one lane closed northbound and southbound from Brandon Wallace Way to 6th/8th Street through summer 2027.
  • Route Z, Jefferson County, all interior lanes closed under I-55. One lane in each direction is open.

 

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

 

Thursday, August 20

  • I-44, St. Louis City, 12 a.m. to 2 p.m., the eastbound I-44 to South Jefferson exit ramp 289 closed.
  • I-44, St. Louis City, 2 a.m. to 4 a.m., the eastbound I-44 to Lafayette exit 290B ramp closed.
  • I-44, S. Louis City, 8 p.m. to 5 a.m., the eastbound I-44 ramp to southbound I-55 closed.
  • I-55, St. Louis City, 8 p.m. to 12 a.m., the Truman on-ramp to southbound I-55.
  • I-55, St. Louis City, 12 a.m. to 5 a.m., Gravois Avenue to southbound I-55 closed.
  • I-64, St. Louis County, 7 a.m. to 3 p.m., one westbound lane closed at Chesterfield Parkway.
  • I-64, St. Louis County, 7 a.m. to 5 p.m., one westbound lane closed at Research Park.
  • I-70, St. Louis City, 9 a.m. to 9 p.m., one westbound lane closed at Stan Musial.
  • Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane closed in various locations between Route P and Route 21.
  • Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane closed between I-270 and Rahning Road.
  • Route 61/67, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane from Meramec River to Lindbergh.
  • Route 100, St. Louis County, 7:30 a.m. to 3 p.m., one eastbound lane closed between Braeshire Road and Weidman Road.
  • Route 100, St. Louis County, 7 p.m. to 5 a.m., one eastbound lane closed over Des Peres Road and I-270.
  • Route 231, St. Louis County, 8:30 a.m. to 3 p.m., one northbound and southbound lane closed at Tori Pines to Gebhardt Drive.
  • Route 267, St. Louis County, 6 a.m. to 3 p.m., one lane closed from Bayless to S. Lindbergh.
  • Route 340, St. Louis County, 9 a.m. to 3 p.m., eastbound and westbound lane closed at I-270 to eastbound North Office Parkway.
  • Route 340, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed I-170 to 82nd
  • Route 366, St. Louis County, 6 a.m. to 3 p.m., one eastbound lane closed from Laclede Station to MacKenzie.
  • Route 366, St. Louis County, 6 p.m. to 6 a.m., one eastbound and westbound lane closed from St. Louis City limits to Pardee.
  • Route 370, St. Louis County, 6 p.m. to 5:30 a.m., one eastbound and westbound lane closed from Missouri River to I-270.
  • Route 370, St. Louis County, the northbound ramp to westbound 370 closed through Friday, August 21.
  • I-64, St. Charles County, 7 a.m. to 5 p.m., one westbound lane closed at Route 364.
  • I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed between I-70 to Route K.
  • I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Route K and I-70.
  • I-70, St. Charles County, 9 p.m. to 5:30 a.m., up to three lanes closed from Fifth Street to Lake St. Louis Blvd.
  • I-70, St. Charles County, 8 p.m. to 6 a.m., one eastbound and westbound lane closed from Foristell to Wentzville.
  • I-70, St. Charles County, 9 p.m. to 5:30 a.m., one eastbound and westbound lane closed from Wentzville Parkway to Route A.
  • I-70, St. Charles County, 9 p.m. to 5 a.m., one eastbound lane and the ramp from I-70 to David Hoekel Parkway closed.
  • Route 370, St. Charles County, 7 p.m. to 5:30 a.m., two westbound lanes closed from Route 141 to Route 94 exit ramp.
  • Route 370, St. Charles County, 7 p.m. to 5:30 a.m., two eastbound lanes closed just before Mel Wetter overpass and Route 94 overpass.
  • Route 370, St. Charles County, 10 p.m. to 5 a.m., all westbound lanes and exit ramp from Route 370 to Route 94 closed.
  • I-55, Jefferson County, 8 p.m. to 6 a.m., one southbound lane closed between McNutt and Route A.

Friday, August 21

  • I-44, St. Louis City, 8 p.m. to 5 a.m., the westbound I-44 at southbound I-55 closed.
  • I-70, St. Louis City, 9 a.m. to 9 p.m., one westbound lane closed at Stan Musial.
  • I-64, St. Louis County, 7 a.m. to 3 p.m., one westbound lane closed at Chesterfield Parkway.
  • I-64, St. Louis County, 7 a.m. to 5 p.m., one westbound lane closed at Research Park.
  • I-64, St. Charles County, 7 a.m. to 5 p.m., one westbound lane closed at Route 364.
  • Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane closed in various locations between Route P and Route 21.
  • Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane closed between I-270 and Rahning Road.
  • Route 61/67, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane from Meramec River to Lindbergh.
  • Route 100, St. Louis County, 7:30 a.m. to 3 p.m., one eastbound lane closed between Braeshire Road and Weidman Road.
  • Route 100, St. Louis County, 7 p.m. to 5 a.m., one eastbound lane closed over Des Peres Road and I-270.
  • Route 231, St. Louis County, 8:30 a.m. to 3 p.m., one northbound and southbound lane closed at Tori Pines to Gebhardt Drive.
  • Route 267, St. Louis County, 6 a.m. to 3 p.m., one lane closed from Bayless to S. Lindbergh.
  • Route 340, St. Louis County, 9 a.m. to 3 p.m., eastbound and westbound lane closed at I-270 to eastbound North Office Parkway.
  • Route 340, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed I-170 to 82nd
  • Route 366, St. Louis County, 6 a.m. to 3 p.m., one eastbound lane closed from Laclede Station to MacKenzie.
  • Route 366, St. Louis County, 6 p.m. to 6 a.m., one eastbound and westbound lane closed from St. Louis City limits to Pardee.
  • Route 370, St. Louis County, 6 p.m. to 5:30 a.m., one eastbound and westbound lane closed from Missouri River to I-270.
  • I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed between I-70 to Route K.
  • I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Route K and I-70.
  • I-70, St. Charles County, 9 p.m. to 5:30 a.m., up to three lanes closed from Fifth Street to Lake St. Louis Blvd.
  • I-70, St. Charles County, 8 p.m. to 6 a.m., one eastbound and westbound lane closed from Foristell to Wentzville.
  • I-70, St. Charles County, 9 p.m. to 5:30 a.m., one eastbound and westbound lane closed from Wentzville Parkway to Route A.
  • Route 370, St. Charles County, 7 p.m. to 5:30 a.m., two westbound lanes closed from Route 141 to Route 94 exit ramp.
  • Route 370, St. Charles County, 7 p.m. to 5:30 a.m., two eastbound lanes closed just before Mel Wetter overpass and Route 94 overpass.
  • Route 370, St. Charles County, 10 p.m. to 5 a.m., all westbound lanes and exit ramp from Route 370 to Route 94 closed.
  • I-55, Jefferson County, 8 p.m. to 6 a.m., one southbound lane closed between McNutt and Route A.

 

Saturday, August 22

  • I-64, St. Louis City, 5 a.m. to 2:30 p.m., all lanes closed at Jefferson.
  • I-70, St. Louis City, 9 a.m. to 9 p.m., one westbound lane closed at Stan Musial.
  • Route 370, St. Charles County, 7 p.m. to 5:30 a.m., two westbound lanes closed from Route 141 to Route 94 exit ramp.
  • Route 370, St. Charles County, 7 p.m. to 5:30 a.m., two eastbound lanes closed just before Mel Wetter overpass and Route 94 overpass.

Sunday, August 23

  • I-70, St. Louis City, 9 a.m. to 9 p.m., one westbound lane closed at Stan Musial.

Monday, August 24

  • I-44, St. Louis City, 5 a.m. to 2 p.m., two lanes closed westbound.
  • I-55, St. Louis City, 6 p.m. to 5 a.m., one southbound lane closed from Union to Lindbergh.
  • I-64, St. Louis City, 9:30 a.m. to 12 p.m., the westbound ramp closed at Vandeventer.
  • Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane closed in various locations between Route P and Route 21.
  • Route 30, St. Louis County, 7 p.m. to 6 a.m., one eastbound and westbound lane closed at I-270.
  • Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane closed between I-270 and Rahning Road.
  • Route 61/67, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane from Meramec River to Lindbergh.
  • Route 100, St. Louis County, 7:30 a.m. to 3 p.m., one eastbound lane closed between Braeshire Road and Weidman Road.
  • Route 100, St. Louis County, 7 p.m. to 5 a.m., one eastbound lane closed over Des Peres Road and I-270.
  • Route 231, St. Louis County, 8:30 a.m. to 3 p.m., one northbound and southbound lane closed at Tori Pines to Gebhardt Drive.
  • Route 340, St. Louis County, 9 a.m. to 3 p.m., eastbound and westbound lane closed at I-270 to eastbound North Office Parkway.
  • Route 340, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed I-170 to 82nd
  • Route 366, St. Louis County, 8 a.m. to 4 p.m., one lane closed over River Des Peres.
  • Route 366, St. Louis County, 6 p.m. to 6 a.m., one eastbound and westbound lane closed from St. Louis City limits to Pardee.
  • Route 370, St. Louis County, 6 p.m. to 5:30 a.m., one eastbound and westbound lane closed from Missouri River to I-270.
  • Route 370, St. Louis County, 3 p.m. through Wednesday, August 21, the northbound I-270.
  • I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed between I-70 to Route K.
  • I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Route K and I-70.
  • I-70, St. Charles County, 9 p.m. to 5:30 a.m., up to three lanes closed from Fifth Street to Lake St. Louis Blvd.
  • I-70, St. Charles County, 8 p.m. to 6 a.m., one eastbound and westbound lane closed from Foristell to Wentzville.
  • I-70, St. Charles County, 9 p.m. to 5:30 a.m., one eastbound and westbound lane closed from Wentzville Parkway to Route A.
  • I-70, St. Charles County, 9 p.m. to 5 a.m., two westbound lanes closed from I-70/I-64 interchange.
  • Route 370, St. Charles County, 7 p.m. to 5:30 a.m., two westbound lanes closed from Route 141 to Route 94 exit ramp.
  • Route 370, St. Charles County, 7 p.m. to 5:30 a.m., two eastbound lanes closed just before Mel Wetter overpass and Route 94 overpass.
  • I-55, Jefferson County, 8 p.m. to 6 a.m., one southbound lane closed between McNutt and Route A.

 

Tuesday, August 25

  • I-44, St. Louis City, 5 a.m. to 2 p.m., two lanes closed westbound.
  • I-55, St. Louis City, 6 p.m. to 5 a.m., one southbound lane closed from Union to Lindbergh.
  • I-170, St. Louis County, 9 a.m. to 2 p.m., one northbound lane at MP Forest Park Parkway.
  • I-170, St. Louis County, 9 a.m. to 2 p.m., one southbound lane closed at Clayton.
  • I-170, St. Louis County, 8 a.m. to 3 p.m., one northbound lane closed at Hanley.
  • Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane closed in various locations between Route P and Route 21.
  • Route 30, St. Louis County, 7 p.m. to 6 a.m., one eastbound and westbound lane closed at I-270.
  • Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane closed between I-270 and Rahning Road.
  • Route 61/67, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane from Meramec River to Lindbergh.
  • Route 100, St. Louis County, 7:30 a.m. to 3 p.m., one eastbound lane closed between Braeshire Road and Weidman Road.
  • Route 100, St. Louis County, 7 p.m. to 5 a.m., one eastbound lane closed over Des Peres Road and I-270.
  • Route 231, St. Louis County, 8:30 a.m. to 3 p.m., one northbound and southbound lane closed at Tori Pines to Gebhardt Drive.
  • Route 267, St. Louis County, 6 a.m. to 3 p.m., one lane closed from Bayless to S. Lindbergh.
  • Route 340, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed I-170 to 82nd
  • Route 340, St. Louis County, 9 a.m. to 3 p.m., eastbound and westbound lane closed at I-270 to eastbound North Office Parkway.
  • Route 366, St. Louis County, 8 a.m. to 4 p.m., one lane closed over River Des Peres.
  • Route 366, St. Louis County, 6 a.m. to 3 p.m., one eastbound lane closed from Laclede Station to MacKenzie.
  • Route 366, St. Louis County, 6 p.m. to 6 a.m., one eastbound and westbound lane closed from St. Louis City limits to Pardee.
  • Route 370, St. Louis County, 6 p.m. to 5:30 a.m., one eastbound and westbound lane closed from Missouri River to I-270.
  • Route 370, St. Louis County, 3 p.m. through Wednesday, August 21, the northbound
  • I-270.
  • I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed between I-70 to Route K.
  • I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Route K and I-70.
  • I-70, St. Charles County, 9 p.m. to 5:30 a.m., up to three lanes closed from Fifth Street to Lake St. Louis Blvd.
  • I-70, St. Charles County, 8 p.m. to 6 a.m., one eastbound and westbound lane closed from Foristell to Wentzville.
  • I-70, St. Charles County, 9 p.m. to 5:30 a.m., one eastbound and westbound lane closed from Wentzville Parkway to Route A.
  • I-70, St. Charles County, 9 p.m. to 5 a.m., two westbound lanes closed from I-70/I-64 interchange.
  • Route 370, St. Charles County, 7 p.m. to 5:30 a.m., two westbound lanes closed from Route 141 to Route 94 exit ramp.
  • Route 370, St. Charles County, 7 p.m. to 5:30 a.m., two eastbound lanes closed just before Mel Wetter overpass and Route 94 overpass.
  • Route AH, Franklin County, 8 a.m. to 3 p.m., Route AH closed between Tamarack Lane and St. Mary’s Road.
  • I-55, Jefferson County, 8 p.m. to 6 a.m., one southbound lane closed between McNutt and Route A.

 

Wednesday, August 26

  • I-44, St. Louis City, 5 a.m. to 2 p.m., two lanes closed westbound.
  • I-55, St. Louis City, 6 p.m. to 5 a.m., one northbound lane closed from Lindbergh to Weber.
  • I-170, St. Louis County, 9 a.m. to 2 p.m., one northbound lane at MP Forest Park Parkway.
  • I-170, St. Louis County, 8 a.m. to 3 p.m., one northbound lane closed at Hanley.
  • I-170, St. Louis County, 9 a.m. to 2 p.m., one southbound lane closed at Clayton.
  • Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane closed in various locations between Route P and Route 21.
  • Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane closed between I-270 and Rahning Road.
  • Route 30, St. Louis County, 7 p.m. to 6 a.m., one eastbound and westbound lane closed at I-270.
  • Route 61/67, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane from Meramec River to Lindbergh.
  • Route 100, St. Louis County, 7:30 a.m. to 3 p.m., one eastbound lane closed between Braeshire Road and Weidman Road.
  • Route 231, St. Louis County, 8:30 a.m. to 3 p.m., one northbound and southbound lane closed at Tori Pines to Gebhardt Drive.
  • Route 267, St. Louis County, 6 a.m. to 3 p.m., one lane closed from Bayless to S. Lindbergh.
  • Route 340, St. Louis County, 9 a.m. to 3 p.m., eastbound and westbound lane closed at I-270 to eastbound North Office Parkway.
  • Route 340, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed I-170 to 82nd
  • Route 366, St. Louis County, 8 a.m. to 4 p.m., one lane closed over River Des Peres.
  • Route 366, St. Louis County, 6 a.m. to 3 p.m., one eastbound lane closed from Laclede Station to MacKenzie.
  • Route 366, St. Louis County, 6 p.m. to 6 a.m., one eastbound and westbound lane closed from St. Louis City limits to Pardee.
  • Route 370, St. Louis County, 3 p.m. through Wednesday, August 21, the northbound
  • I-270.
  • I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed between I-70 to Route K.
  • I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Route K and I-70.
  • I-70, St. Charles County, 9 p.m. to 5:30 a.m., up to three lanes closed from Fifth Street to Lake St. Louis Blvd.
  • I-70, St. Charles County, 8 p.m. to 6 a.m., one eastbound and westbound lane closed from Foristell to Wentzville.
  • I-70, St. Charles County, 9 p.m. to 5:30 a.m., one eastbound and westbound lane closed from Wentzville Parkway to Route A.
  • I-70, St. Charles County, 9 p.m. to 5 a.m., two westbound lanes closed from I-70/I-64 interchange.
  • Route 370, St. Charles County, 7 p.m. to 5:30 a.m., two westbound lanes closed from Route 141 to Route 94 exit ramp.
  • Route 370, St. Charles County, 7 p.m. to 5:30 a.m., two eastbound lanes closed just before Mel Wetter overpass and Route 94 overpass.
  • Route AH, Franklin County, 8 a.m. to 3 p.m., Route AH closed between Tamarack Lane and St. Mary’s Road.
  • Route PP, Franklin County, 6:30 a.m. to 4:30 p.m., one lane will be closed in various locations.
  • I-55, Jefferson County, 8 p.m. to 6 a.m., one southbound lane closed between McNutt and Route A.

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