St. Louis Work Zones July 2 - 8

ST. LOUIS - The Missouri Department of Transportation will suspend most work on interstates and state-maintained highways to reduce congestion and ease travel during the Independence Day weekend.

Crews will suspend most lane closures for work zones starting Thursday, July 2 at noon, with a few projects continuing until 4 p.m. Any priority roadwork such as pothole patching or other repairs may require work zones. Traffic will continue to have restrictions where there are permanent barriers. Work on all construction projects will resume at 5 a.m. Monday, July 6.

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-55, St. Louis City, the Gasconade on-ramp to northbound I-55 reopens Friday
• I-55, St. Louis City, one northbound lane from 4500 Broadway to Potomac reopens Friday.
• 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 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 141, St. Louis County, one right lane closed northbound near I-44 from 6 a.m. Monday until early August.
• Route 366, St. Louis County, one eastbound and westbound lane closed between Watson Industrial to Pardee, through the end of 2026.
• Route N, St. Louis County, one northbound lane closed from Signal Hill Dr. to Bernhardt Avenue.
• I-70, St. Charles County, Veterans Memorial Parkway will be closed from Callahan Road to Corporate Parkway from 8 a.m. Monday through early 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.
• I-55, Jefferson County, one southbound lane closed just north of Route Z.
• 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 67, Jefferson County, one lane closed at I-55.
• 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, July 2

• Route 21, St. Louis County, 6 a.m. to 4 p.m., one northbound and southbound lane closed from Route 30 to Lindbergh.
• Route 30, St. Louis County, 7 a.m. to noon, one eastbound and westbound lane between Valcour and Baptist Church.
• Route 30, St. Louis County, 7 a.m. to noon, one lane closed from Rock Hill to Baptist Church.
• Route 100, St. Louis County, 7:30 a.m. to noon, one eastbound lane closed from Knollhaven and Weidman Road.
• Route 231, St. Louis County, 8 a.m. to noon, one northbound lane closed between Marycrest Drive 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 noon, one eastbound and westbound lane closed between I-270 and North Office Parkway
• Route 340, St. Louis County, 9 a.m. to noon, one right lane closed I-170 to 82nd
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one lane closed from Laclede Station to Pardee.
• Route 370, St. Louis County, 6 a.m. to noon, one eastbound lane in St. Louis County is closed from Route 141 to the I-270 ramps.
• Route PP, Jefferson County, 8 a.m. to noon, all lanes closed. Traffic will be detoured.

Friday, July 3

Saturday, July 4

Sunday, July 5

Monday, July 6

• I-55, St. Louis City, 7 p.m. to 6 a.m., the ramp from Truman to southbound will be closed.
• I-55, St. Louis City, 10:30 p.m. to 5 a.m., all southbound lanes closed from I-44 to Arsenal.
• I-44, St. Louis County, 8 a.m. to 3:30 p.m., one right lane closed on Mraz in both directions over the interstate.
• I-270, St. Louis County, 8 p.m. to 5 a.m., up to three lanes closed northbound and southbound between I-64 and Ladue.
• Route 21, St. Louis County, 6 a.m. to 4 p.m., one northbound and southbound lane closed from Route 30 to Lindbergh.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane between Valcour and Baptist Church.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one lane closed from Rock Hill to Baptist Church.
• Route 30, St. Louis County, 7 p.m. to 6 a.m., one lane closed in either direction between River Des Peres and Musick.
• Route 67, St. Louis County, 5 a.m. through late 2027, one lane closed northbound from the Missouri River to just north of Route 94.
• Route 100, St. Louis County, 7:30 a.m. to noon, one eastbound lane closed from Knollhaven and Weidman Road.
• Route 100, St. Louis County, 8 p.m.to 5 a.m., two lanes closed eastbound between Barrett Station Road and Centerroyal Drive.
• Route 141, St. Louis County, 6 a.m. through early August, one right lane closed northbound near I-44.
• Route 231, St. Louis County, 8 a.m. to 3 p.m., one northbound lane closed between Marycrest Drive to Gebhardt Drive.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed between I-270 and North Office Parkway
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one right lane closed I-170 to 82nd
• Route 370, St. Louis County, 6 a.m. to 6 p.m., one eastbound lane in St. Louis County is closed from Route 141 to the I-270 ramps.
• I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed between I-70 to Prospect.
• I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Prospect and I-70.
• 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, 10 p.m. to 5 a.m., two lanes closed on Wentzville Parkway over the interstate.
• I-70, St. Charles County, 8 a.m. to 3:30 p.m., one lane closed on the Outer Road bridge over Peruque Creek.
• I-70, St. Charles County, 9 p.m. to 5:30 a.m., two lanes closed westbound from 5th Street to Lake St. Louis Boulevard.
• I-70, St. Charles County, 8 a.m. until early August, Veterans Memorial Parkway will be closed between Callahan Road and Corporate Parkway.
• Route 370, St. Charles County, 9 a.m. to 9 p.m., one eastbound Route 370 lane closed from Elm Point to Route 94.
• Route Z, St. Charles County, 10 p.m. to 5 a.m., all lanes closed underneath I-70.
• I-55, Jefferson County, 8 p.m. to 6 a.m., one southbound right lane closed from Manley Quarry to Route A.
• I-55, Jefferson County, 7 p.m. to 5 a.m., the ramps between northbound I-55 and McNutt will be closed.
• Route 30, Jefferson County, 5 p.m. to 6 a.m., one lane closed between mile 10 and mile 20. A flagger will direct traffic through the work zone.
• Route 61/67, Jefferson County, 7 p.m. through late 2027, one lane closed northbound and southbound between Brandon Wallace Way and 6th/8th
• Route PP, Jefferson County, 8 a.m. to 3 p.m., all lanes closed. Traffic will be detoured.
• Route 185, Franklin County, 7 a.m. to 2:30 p.m., one lane closed over the Meramec River. Flaggers will direct traffic through the work zone.
• Route FF, Franklin County, 7 a.m. to 2:30 p.m., one lane closed over the Little Meramec River. Flaggers will direct traffic through the work zone.

Tuesday, July 7

• I-55, St. Louis City, 6 p.m. to 5 a.m., two lanes will be closed northbound between Weber Road and 4500 South Broadway.
• I-55, St. Louis City, 9 a.m. to 3 p.m., one right lane will be closed from Lafayette Park to Park Avenue.
• I-64, St. Louis City, 9 a.m. to 3 p.m., one lane closed westbound at Grand.
• I-44, St. Louis County, 8 a.m. to 3:30 p.m., one left lane closed on Mraz in both directions over the interstate.
• I-270, St. Louis County, 8 p.m. to 5 a.m., up to three lanes closed northbound and southbound between I-64 and Ladue.
• Route 21, St. Louis County, 6 a.m. to 4 p.m., one northbound and southbound lane closed from Route 30 to Lindbergh.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane between Valcour and Baptist Church.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one lane closed from Rock Hill to Baptist Church.
• Route 30, St. Louis County, 7 p.m. to 6 a.m., one lane closed in either direction between River Des Peres and Musick.
• Route 100, St. Louis County, 7:30 a.m. to noon, one eastbound lane closed from Knollhaven and Weidman Road.
• Route 100, St. Louis County, 8 p.m.to 5 a.m., two lanes closed eastbound between Barrett Station Road and Centerroyal Drive.
• Route 231, St. Louis County, 8 a.m. to 3 p.m., one northbound lane closed between Marycrest Drive 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 between I-270 and North Office Parkway
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one right lane closed I-170 to 82nd
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one lane closed from Laclede Station to Pardee.
• Route 370, St. Louis County, 6 a.m. to 6 p.m., one eastbound lane in St. Louis County is closed from Route 141 to the I-270 ramps.
• I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed between I-70 to Prospect.
• I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Prospect and I-70.
• 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, 10 p.m. to 5 a.m., two lanes closed on Wentzville Parkway over the interstate.
• I-70, St. Charles County, 8 a.m. to 3:30 p.m., one lane closed on the Outer Road bridge over Peruque Creek.
• I-70, St. Charles County, 9 p.m. to 5:30 a.m., two lanes closed westbound from 5th Street to Lake St. Louis Boulevard.
• Route 370, St. Charles County, 9 a.m. to 9 p.m., one eastbound Route 370 lane closed from Elm Point to Route 94.
• Route Z, St. Charles County, 10 p.m. to 5 a.m., all lanes closed underneath I-70.
• I-55, Jefferson County, 8 p.m. to 6 a.m., one southbound right lane closed from Manley Quarry to Route A.
• I-55, Jefferson County, 7 p.m. to 5 a.m., the ramps between northbound I-55 and McNutt will be closed.
• Route 30, Jefferson County, 5 p.m. to 6 a.m., one lane closed between mile 10 and mile 20. A flagger will direct traffic through the work zone.
• Route 61/67, Jefferson County, 7 p.m. through late 2027, one lane closed northbound and southbound between Brandon Wallace Way and 6th/8th
• Route PP, Jefferson County, 8 a.m. to 3 p.m., all lanes closed. Traffic will be detoured.
• Route 185, Franklin County, 7 a.m. to 2:30 p.m., one lane closed over the Meramec River. Flaggers will direct traffic through the work zone.

Wednesday, July 8

• I-55, St. Louis City, 6 p.m. to 5 a.m., two lanes will be closed northbound between Weber Road and 4500 South Broadway.
• I-64, St. Louis City, 9 a.m. to 3 p.m., one lane closed westbound at Grand.
• I-44, St. Louis County, 8 a.m. to 3:30 p.m., one right lane closed on Mraz in both directions over the interstate.
• I-170, St. Louis County, 9 a.m. to 2 p.m., one right lane closed northbound from I-64 to Delmar.
• I-270, St. Louis County, 8 p.m. to 5 a.m., up to three lanes closed northbound and southbound between I-64 and Ladue.
• Route 21, St. Louis County, 7 p.m. to 5 a.m., one northbound and southbound lane closed from Old Tesson to I-270.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane between Valcour and Baptist Church.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one lane closed from Rock Hill to Baptist Church.
• Route 30, St. Louis County, 7 p.m. to 6 a.m., one lane closed in either direction between River Des Peres and Musick.
• Route 100, St. Louis County, 7:30 a.m. to noon, one eastbound lane closed from Knollhaven and Weidman Road.
• Route 100, St. Louis County, 8 p.m.to 5 a.m., two lanes closed eastbound between Barrett Station Road and Centerroyal Drive.
• Route 231, St. Louis County, 8 a.m. to 3 p.m., one northbound lane closed between Marycrest Drive 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 between I-270 and North Office Parkway
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one right lane closed I-170 to 82nd
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one lane closed from Laclede Station to Pardee.
• Route 370, St. Louis County, 6 a.m. to 6 p.m., one eastbound lane in St. Louis County is closed from Route 141 to the I-270 ramps.
• I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed between I-70 to Prospect.
• I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Prospect and I-70.
• I-70, St. Charles County, 9 p.m. to 5 a.m., all eastbound lanes closed at the I-64/Route 61 interchange.
• 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, 10 p.m. to 5 a.m., two lanes closed on Wentzville Parkway over the interstate.
• I-70, St. Charles County, 8 a.m. to 3:30 p.m., one lane closed on the Outer Road bridge over Peruque Creek.
• I-70, St. Charles County, 9 p.m. to 5:30 a.m., two lanes closed westbound from 5th Street to Lake St. Louis Boulevard.
• Route 94, St. Charles County, 8 a.m. to 3:30 p.m., the ramp from westbound to eastbound Route 364 will be closed.
• Route 370, St. Charles County, 9 a.m. to 9 p.m., one eastbound Route 370 lane closed from Elm Point to Route 94.
• Route Z, St. Charles County, 10 p.m. to 5 a.m., all lanes closed underneath I-70.
• I-55, Jefferson County, 8 p.m. to 6 a.m., one southbound right lane closed from Manley Quarry to Route A.
• I-55, Jefferson County, 7 p.m. to 5 a.m., the ramps between northbound I-55 and McNutt will be closed.
• Route 30, Jefferson County, 5 p.m. to 6 a.m., one lane closed between mile 10 and mile 20. A flagger will direct traffic through the work zone.
• Route 61/67, Jefferson County, 7 p.m. through late 2027, one lane closed northbound and southbound between Brandon Wallace Way and 6th/8th
• Route PP, Jefferson County, 8 a.m. to 3 p.m., all lanes closed. Traffic will be detoured.
• Route 185, Franklin County, 7 a.m. to 2:30 p.m., one lane closed over the Meramec River. Flaggers will direct traffic through the work zone.

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