St. Louis Work Zones May 22-28

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 Memorial Day weekend.

Crews will suspend new lane closures for work zones starting Friday, May 23 at noon, although 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, such as along I-64 across the Missouri River and on I-55 in the city of St. Louis. Work on all construction projects will resume at 6 a.m. Tuesday, May 27.

Starting Tuesday, May 27, several long-term lane closures start. They include:

• Route 21 (Tesson Ferry), one lane in each direction between Tiffany Square Park and Green Park Road/Musick will be closed through late 2025.
• Route 67 (Lindbergh), St. Louis County, will be closed over Deer Creek, south of Conway Road/German Boulevard, for two months.
• Route 109, St. Louis County, access from S. Eatherton Road is closed for one month.
• Route MM, Franklin County, closed for four months.

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, two northbound lanes closed from north of Bayless to Virginia through 2025.
• I-55, St. Louis City, the ramp from northbound to Loughborough and the Loughborough on-ramp to northbound I-55 will be closed through May 2025.
• I-55, St. Louis City, the ramp from Lafayette/Truman to southbound I-55 is closed through 2025.
• I-55, St. Louis City, the ramp from Germania to northbound I-55 is closed through 2025.
• I-55, St. Louis County, one northbound lane closed from north of Reavis Barracks to north of Bayless through 2025.
• I-64, St. Louis City, the ramp from westbound I-64 to Grand/Forest Park Avenue is closed.
• 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.
• Route 67, St. Louis County, one northbound and southbound lane closed over Coldwater Creek.
• Route 67, St. Louis County, starting Tuesday, all lanes closed northbound and southbound at Deer Creek (just south of Conway Road/German Boulevard through early August.
• 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 109, St. Louis County, the intersection of northbound/southbound Route 109 and eastbound/westbound Route CC closed through the end of 2025.
• Route 109, St. Louis County, S. Eatherton Road is closed at the intersection of Route 109 through July.
• Route 141, one southbound lane closed at I-64 through 2025.
• Route 141, St. Louis County, the westbound I-64 off ramp to southbound Route 141 and the eastbound I-64 off ramp to Route 141 closed.
• Route N, St. Louis County, one lane closed southbound from Cool Valley Drive to St. Ann’s Lane through July.
• Route AC, St. Louis County, one northbound and one southbound lane closed at Maline Creek (just south of Lucas & Hunt).
• 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.
• Route 61/67, Jefferson County, two lanes closed northbound/southbound at Miller Road and at Route 61/67 and St. Johns Church Road.
• Route 67, Jefferson County, one southbound lane closed at I-55.
• Route 67, Jefferson County, one lane closed at Route CC.
• Route 67, Jefferson County, the southbound 67 to southbound I-55 loop ramp closed.
• Route W, Jefferson County, all lanes closed between Boemler Road and Twin River Road.
• Route Z, Jefferson County, three middle lanes closed in the center of Route Z. All traffic is pushed to the outside lanes.
• Route MM, Franklin County, starting Tuesday, closed in both directions until October. 

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

Thursday, May 22

• I-64, St. Louis City, 8 p.m. to 5 a.m., one eastbound and westbound lane closed from Sarah to Jefferson.
• I-64, St. Louis City, 6 p.m. to 9 p.m., Exit 30, the last exit in Missouri, will be closed for the 2025 Biz Dash 5K
• Route 100, St. Louis City, 6 p.m. to 9 p.m., the roadway will be closed between S. 7th Street and Broadway for the 2025 Biz Dash 5K.
• I-44, St. Louis County, 7 p.m. to 5 a.m., one eastbound south outer road lane closed at Bowles.
• I-44, St. Louis County, 9 p.m. to 5 a.m., one westbound north outer road lane closed at Soccer Park.
• I-170, St. Louis County, 8:30 p.m. to 5 a.m., one lane closed southbound and northbound from Scudder Road to Route 115. One lane southbound from the westbound I-70 ramp to the eastbound I-70 overpass.
• Route 21, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane closed between Musick and Concord School Road.
• Route 21, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane closed between Baptist Church Road and Lindbergh Boulevard.
• Route 100, St. Louis County, 7 p.m. to 6 a.m., one eastbound lane closed between to Fox Creek Road and Booness Lane.
• Route 100, St. Louis County, 7 p.m. to 6 a.m., one westbound lane closed from Route OO to Old Manchester.
• Route 100, St. Louis County, 8 a.m. to 2 p.m., one right lane closed eastbound and westbound at Baxter.
• Route 109, St. Louis County, 7 p.m. to 5 a.m., one lane closed from Eatherton to Clayton. Flaggers will direct traffic through the work zone.
• Route 340, St. Louis County, 9 a.m. to 2 p.m., one lane closed in each direction at Woodson.
• Route N, St. Louis County, 7 p.m. to 6 a.m., one northbound and one southbound lane closed from Jean Dr. to Thoroughman.
• Route AC, St. Louis County, 8 a.m. to 2 p.m., the left turn lanes are closed at Parker.
• Route AC, St. Louis County, 8 a.m. to 2 p.m., one lane closed at W. Florissant.
• Route BA (Babler Park Drive), St. Louis County, 8 a.m. to 7 p.m., one lane will be closed between Route 109 south and Route 109 north. Flaggers will direct traffic through the work zone.
• 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 Route 364 to Route K.
• Route 61, St. Charles County, 8 p.m. to 6 a.m., one northbound and southbound lane closed between I-70 and Route A.
• Route D, St. Charles County, 8 a.m. to 4 p.m. one westbound and eastbound lane closed between Route F to Route 94. Flaggers will direct traffic through the work zone.
• I-55, Jefferson County, 9 a.m. to 2 p.m., Cromwell at 3rd Street will be closed in both directions.
• Route 61/67, Jefferson County, 7 a.m. to 3 p.m., one lane closed on both northbound and southbound at Miller Road.
• Route 141, Jefferson County, 9 a.m. to 2 p.m., right lanes closed northbound and southbound at Route 21.
• Route 50, Franklin County, 6 p.m. to 5 a.m., one eastbound and westbound lane closed from Gasconade/Franklin County line to Route C.
• Route 100, Franklin County, 8 a.m. to 6 p.m., one lane closed eastbound between Washington and Route AT.
• Route 100, Franklin County, 7 p.m. to 5:30 a.m., one eastbound lane closed between Washington and Route AT.
• Route M, Franklin County, 7 a.m. to 5 p.m. one lane closed from Route AT to Route 100. A pilot car will direct traffic through the work zone.
• Route W, Franklin County, 9 a.m. to 3 p.m., one lane will be closed over I-44. A flagger will direct traffic through the work zone.
• Route KK, Franklin County, 8 a.m. to 3 p.m., one lane closed from Route C to Route 185.
• Route MM, Franklin County, 7 a.m. to 5 p.m., one lane closed between Beauty View Drive and Livestock Dr.
• Route NN, Franklin County, 6 a.m. to 8 p.m., one lane closed between Route 30 and Route O. A flagger and pilot car will direct traffic through the work zone. 

Friday, May 23

• Route 340, St. Louis County, 9 a.m. to noon, one lane closed in each direction at Woodson.
• I-55, Jefferson County, 9 a.m. to 2 p.m., Cromwell at 3rd Street will be closed in both directions.
• Route 61/67, Jefferson County, 7 a.m. to noon, one lane closed on both northbound and southbound at Miller Road.
• Route 141, Jefferson County, 9 a.m. to noon, right lanes closed northbound and southbound at Route 21.
• Route 100, Franklin County, 7 p.m. to noon, one eastbound lane closed between Washington and Route AT.
• Route M, Franklin County, 7 a.m. to noon, one lane closed from Route AT to Route 100. A pilot car will direct traffic through the work zone.
• Route KK, Franklin County, 8 a.m. to noon, one lane closed from Route C to Route 185.
• Route MM, Franklin County, 7 a.m. to noon, one lane closed between Beauty View Drive and Livestock Dr. 

Saturday, May 24

• No scheduled work zones due to the Memorial Day holiday.

 Sunday, May 25

• No scheduled work zones due to the Memorial Day holiday. 

Monday, May 26

• No scheduled work zones due to the Memorial Day holiday. 

Tuesday, May 27

• I-64, St. Louis City, 8 p.m. to 5 a.m., one eastbound and westbound lane closed from Sarah to Jefferson.
• I-44, St. Louis County, 9 a.m. to 3 p.m., one lane closed northbound and southbound on Shrewbury over the interstate.
• I-44, St. Louis County, 7 p.m. to 5 a.m., one eastbound south outer road lane closed at Bowles.
• I-44, St. Louis County, 7 p.m. to 5 a.m., one westbound north outer road lane closed at Soccer Park.
• I-170, St. Louis County, 8:30 p.m. to 5 a.m., one lane closed southbound and northbound from Scudder Road to Route 115. One lane southbound from the westbound I-70 ramp to the eastbound I-70 overpass.
• Route 21, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane closed between Musick and Concord School Road.
• Route 21, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane closed between Baptist Church Road and Lindbergh Boulevard.
• Route 21, starting 6 a.m., one lane northbound and southbound will be closed Musick to Tesson Creek Estates through late 2025.
• Route 67, St. Louis County, 9 a.m. to 3 p.m., one lane closed northbound at Natural Bridge for two months.
• Route 67, St. Louis County, starting at 6 a.m., all lanes closed northbound and southbound over Deer Creek, just south of Conway Road/German Boulevard.
• Route 100, St. Louis County, 7 p.m. to 6 a.m., one westbound lane closed from Route OO to Old Manchester.
• Route 109, St. Louis County, 7 p.m. to 5 a.m., one lane closed from Eatherton to Clayton. Flaggers will direct traffic through the work zone.
• Route 109, St. Louis County, starting at 6 a.m., S. Eatherton Road closed at the intersection with Route 109 for one month.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one lane closed eastbound between I-270 and Lindbergh.
• Route 340, St. Louis County, 8 p.m. and 6 a.m., one lane closed eastbound between I-270 and Lindbergh.
• Route 340, St. Louis County, 9 a.m. to 2 p.m., one lane closed in each direction at Woodson.
• Route N, St. Louis County, 7 p.m. to 6 a.m., one northbound and one southbound lane closed from Jean Dr. to Thoroughman.
• Route AB (Ladue Road) 7 a.m. to 2 p.m., the southbound ramp to Woods Mill will be closed.
• Route AB, (Ladue Road), St. Louis County, 7 a.m. to 2 p.m., the ramp from Woods Mill to westbound will be closed.
• Route AC, St. Louis County, 8 a.m. to 2 p.m., the left turn lanes are closed at Parker.
• Route BA (Babler Park Drive), St. Louis County, 8 a.m. to 7 p.m., one lane will be closed between Route 109 south and Route 109 north. Flaggers will direct traffic through the work zone.
• 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 Route 364 to Route K.
• Route 61, St. Charles County, 8 p.m. to 6 a.m., one northbound and southbound lane closed between I-70 and Route A.
• Route Z, St. Charles County, 8 p.m. to 6 a.m., one lane closed between Route D and Route N. Flaggers will direct traffic through the work zone.
• I-55, Jefferson County, 9 a.m. to 2 p.m., Cromwell at 3rd Street will be closed in both directions.
• Route 61, Jefferson County, 8 a.m. to 3 p.m., one lane closed at Route TT. Flaggers will direct traffic through the work zone.
• Route 61/67, Jefferson County, 7 a.m. to 3 p.m., one lane closed on both northbound and southbound at Miller Road.
• Route 30, Franklin County, 9 a.m. to 3 p.m., one lane closed over I-44. Flaggers will direct traffic through the work zone.
• Route 50, Franklin County, 6 p.m. to 5 a.m., one eastbound and westbound lane closed from Gasconade/Franklin County line to Route C.
• Route 100, Franklin County, 8 a.m. to 6 p.m., one lane closed eastbound between Washington and Route AT.
• Route 100, Franklin County, 7 p.m. to 5:30 a.m., one eastbound lane closed between Washington and Route AT.
• Route M, Franklin County, 7 a.m. to 5 p.m. one lane closed from Route AT to Route 100. A pilot car will direct traffic through the work zone.
• Route KK, Franklin County, 8 a.m. to 3 p.m., one lane closed from Route C to Route 185.
• Route MM, Franklin County, starting 6 a.m., all lanes closed in both directions, for four months.
• Route NN, Franklin County, 9 a.m. to 8 p.m., one lane closed between Route 30 and Route O. A flagger and pilot car will direct traffic through the work zone. 

Wednesday, May 28

• I-64, St. Louis City, 8 p.m. to 5 a.m., one eastbound and westbound lane closed from Sarah to Jefferson.
• I-44, St. Louis County, 9 a.m. to 3 p.m., one lane closed northbound and southbound on Shrewbury over the interstate.
• I-44, St. Louis County, 7 p.m. to 5 a.m., one eastbound south outer road lane closed at Bowles.
• I-44, St. Louis County, 7 p.m. to 5 a.m., one westbound north outer road lane closed at Soccer Park.
• I-170, St. Louis County, 8:30 p.m. to 5 a.m., one lane closed southbound and northbound from Scudder Road to Route 115. One lane southbound from the westbound I-70 ramp to the eastbound I-70 overpass.
• Route 21, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane closed between Musick and Concord School Road.
• Route 21, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane closed between Baptist Church Road and Lindbergh Boulevard.
• Route 21, starting 6 a.m., one lane northbound and southbound will be closed Musick to Tesson Creek Estates through late 2025.
• Route 67, St. Louis County, 9 a.m. to 3 p.m., one lane closed northbound at Natural Bridge for two months.
• Route 67, St. Louis County, starting at 6 a.m., all lanes closed northbound and southbound over Deer Creek, just south of Conway Road/German Boulevard.
• Route 100, St. Louis County, 7 p.m. to 6 a.m., one westbound lane closed from Route OO to Old Manchester.
• Route 109, St. Louis County, 7 p.m. to 5 a.m., one lane closed from Eatherton to Clayton. Flaggers will direct traffic through the work zone.
• Route 109, St. Louis County, starting at 6 a.m., S. Eatherton Road closed at the intersection with Route 109 for one month.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one lane closed eastbound between I-270 and Lindbergh.
• Route 340, St. Louis County, 8 p.m. and 6 a.m., one lane closed eastbound between I-270 and Lindbergh.
• Route 340, St. Louis County, 9 a.m. to 2 p.m., one lane closed in each direction at Woodson.
• Route D, St. Louis County, 8 a.m. to 2 p.m., one lane eastbound and westbound closed at Ashby.
• Route N, St. Louis County, 7 p.m. to 6 a.m., one northbound and one southbound lane closed from Jean Dr. to Thoroughman.
• Route AB (Ladue Road) 7 a.m. to 2 p.m., the southbound ramp to Woods Mill will be closed.
• Route AB, (Ladue Road), St. Louis County, 7 a.m. to 2 p.m., the ramp from Woods Mill to westbound will be closed.
• Route BA (Babler Park Drive), St. Louis County, 8 a.m. to 7 p.m., one lane will be closed between Route 109 south and Route 109 north. Flaggers will direct traffic through the work zone.
• 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 Route 364 to Route K.
• Route 61, St. Charles County, 8 p.m. to 6 a.m., one northbound and southbound lane closed between I-70 and Route A.
• Route Z, St. Charles County, 8 p.m. to 6 a.m., one lane closed between Route D and Route N. Flaggers will direct traffic through the work zone.
• I-55, Jefferson County, 9 a.m. to 2 p.m., Cromwell at 3rd Street will be closed in both directions.
• Route 61, Jefferson County, 8 a.m. to 3 p.m., one lane closed at Route TT. Flaggers will direct traffic through the work zone.
• Route 61/67, Jefferson County, 7 a.m. to 3 p.m., one lane closed on both northbound and southbound at Miller Road.
• Route 50, Franklin County, 6 p.m. to 5 a.m., one eastbound and westbound lane closed from Gasconade/Franklin County line to Route C.
• Route 100, Franklin County, 8 a.m. to 6 p.m., one lane closed eastbound between Washington and Route AT.
• Route 100, Franklin County, 7 p.m. to 5:30 a.m., one eastbound lane closed between Washington and Route AT.
• Route M, Franklin County, 7 a.m. to 5 p.m. one lane closed from Route AT to Route 100. A pilot car will direct traffic through the work zone.
• Route KK, Franklin County, 8 a.m. to 3 p.m., one lane closed from Route C to Route 185.
• Route MM, Franklin County, starting 6 a.m., all lanes closed in both directions, for four months.
• Route NN, Franklin County, 9 a.m. to 8 p.m., one lane closed between Route 30 and Route O. A flagger and pilot car will direct traffic through the work zone.

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