St. Louis Work Zones May 15-21

ST. LOUIS – Motorists who travel northbound Route 141 will not be able to use the exit ramp to Route 340 (Olive) on Thursday, May 15 from 10 p.m. to 5 a.m. The ramp will be closed to allow crews to seal the bridge deck on Olive over Route 141.

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.
• I-55, St. Louis City and County, two northbound lanes closed from north of Bayless to Virginia.
• I-55, St. Louis City, the ramp from northbound to Loughborough and the Loughborough on-ramp to northbound I-55 will be closed through mid-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.
• 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, westbound Conway closed under I-270 through fall 2025 Conway is one-way heading eastbound.
• 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, the two through lanes are shifted between Lylwood to the German/Conway intersection and the left turn lane is closed to German until June 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 109, St. Louis County, the intersection of northbound/southbound Route 109 and eastbound/westbound Route CC closed.
• Route 141, one southbound lane closed at I-64.
• 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 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 Wednesday, May 21, closed between Purina Farms and Checkerboard loop.

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

Thursday, May 15

• 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, 7 p.m. to 5 a.m., one eastbound south outer road closed at Bowles.
• I-44, St. Louis County, 8 p.m. to 6 a.m., one westbound lane and ramp to Route 50 closed.
• 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.
• I-170, St. Louis County, 9 a.m. to 3 p.m., one southbound lane closed between Ladue and Forest Park Parkway.
• I-170, St. Louis County, 9 a.m. to 3 p.m., southbound Brentwood exit ramp closed.
• 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 340, St. Louis County, 8 a.m. to 2 p.m., one lane closed at Woodson.
• Route 340, St. Louis County, 8 a.m. to 2 p.m., one lane closed at North and South Rd.
• 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.
• Route N, St. Louis County, 7 p.m. to 6 a.m., one northbound and one southbound lane closed from Jean Dr. to Thoroughman.
• 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.
• I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed from southbound Route K to I-64 loop ramp.
• 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.
• Route 21, Jefferson County, 7 a.m. to 5 p.m., one northbound and southbound lane closed from Schenk Road to Route 141.
• 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, 7 p.m. to 5:30 a.m., one eastbound lane closed between Washington and Route AT.
• 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 MM, Franklin County, 9 a.m. to 2 p.m., closed at the intersection of Route MM and Main Street.
• Route O, Franklin County, 6:30 a.m. to 8 p.m., one lane closed between Route N and Route F. Flaggers will direct traffic through the work zone.

Friday, May 16

• 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 p.m. to 7 a.m., one westbound lane and ramp to Route 50 closed.
• I-170, St. Louis County, 9 p.m. to 6 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 340, St. Louis County, 8 a.m. to 2 p.m., one lane closed at Woodson.
• Route 340, St. Louis County, 8 a.m. to 2 p.m., one lane closed at North and South Rd.
• 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.
• 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 N, St. Louis County, 7 a.m. to 3 p.m., one northbound and one southbound lane closed between Augusta and Brotherton.
• 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.
• I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed from southbound Route K to I-64 loop ramp.
• 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, 11 p.m. to 5 a.m., northbound lanes closed over Joachim Creek.
• I-55, Jefferson County, 7 p.m. to 5 a.m., one northbound lane closed at Route 67.
• I-55, Jefferson County, 10 p.m. to 5 a.m., northbound I-55 ramp to northbound Route 67 closed. Ramp to southbound Route 67 permanently closed.
• Route 21, Jefferson County, 7 a.m. to 5 p.m., one northbound and southbound lane closed from Schenk Road to Route 141.
• Route 67, Jefferson County, 7 p.m. to 5 a.m., one northbound and southbound lane closed under I-55.
• 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, 7 p.m. to 5:30 a.m., one eastbound lane closed between Washington and Route AT.
• 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 MM, Franklin County, 9 a.m. to 2 p.m., closed at the intersection of Route MM and Main Street.
• Route O, Franklin County, 6:30 a.m. to 8 p.m., one lane closed between Route N and Route F. Flaggers will direct traffic through the work zone.

Saturday, May 17

• I-170, St. Louis County, 9 p.m. to 8 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 N, St. Louis County, 7 p.m. to 6 a.m., one northbound and one southbound lane closed from Jean Dr. to Thoroughman.

Sunday, May 18

• Route O, Franklin County, 6:30 a.m. to 8 p.m., one lane closed between Route N and Route F. Flaggers will direct traffic through the work zone.

Monday, May 19

• 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, 7 p.m. to 5 a.m., one eastbound south outer road closed at Bowles.
• 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 109, St. Louis County, 7 p.m. to 5 a.m., one lane closed in either direction from Eatherton to Clayton.
• Route 340, St. Louis County, 8 a.m. to 2 p.m., one lane closed at Woodson.
• Route 340, St. Louis County, 8 a.m. to 2 p.m., one lane closed at North and South Rd.
• 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.
• 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 N, St. Louis County, 7 a.m. to 3 p.m., one northbound and one southbound lane closed between Augusta and Brotherton.
• 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.
• I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed from southbound Route K to I-64 loop ramp.
• 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, 7 p.m. to 6 a.m., one eastbound and westbound lane closed between Route F and Route 94. Flaggers will direct traffic through the work zone.
• Route 21, Jefferson County, 7 a.m. to 5 p.m., one northbound and southbound lane closed from Schenk Road to Route 141.
• Route 61, Jefferson County, 8 a.m. to 2 p.m., right turn lane closed at Route TT.
• 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 50, Franklin County, 6 p.m. to 5 a.m., one eastbound and westbound lane closed between Route BB and Independence Drive.
• Route 100, Franklin County, 7 p.m. to 5:30 a.m. and 8 a.m. to 6 p.m., one eastbound lane closed between Washington and Route AT.
• 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 MM, Franklin County, 9 a.m. to 2 p.m., closed at the intersection of Route MM and Main Street.
• Route O, Franklin County, 6:30 a.m. to 7 p.m., one lane closed between Route N and Route F. Flaggers will direct traffic through the work zone.

Tuesday, May 20

• 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, 7 p.m. to 5 a.m., one eastbound south outer road closed at Bowles.
• I-170, St. Louis County, 8:30 p.m. to 5 a.m., one northbound and southbound lane closed 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 109, St. Louis County, 7 p.m. to 6 a.m., one lane closed in either direction from Eatherton to Clayton.
• Route 340, St. Louis County, 8 a.m. to 2 p.m., one lane closed at Woodson.
• Route 340, St. Louis County, 8 a.m. to 2 p.m., one lane closed at North and South Rd.
• 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.
• 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 N, St. Louis County, 7 a.m. to 3 p.m., one northbound and one southbound lane closed between Augusta and Brotherton.
• 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.
• I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed from southbound Route K to I-64 loop ramp.
• 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, 7 p.m. to 6 a.m., one eastbound and westbound lane closed between Route F and Route 94. Flaggers will direct traffic through the work zone.
• Route 21, Jefferson County, 7 a.m. to 5 p.m., one northbound and southbound lane closed from Schenk Road to Route 141.
• Route 61, Jefferson County, 8 a.m. to 2 p.m., right turn lane closed at Route TT.
• 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 50, Franklin County, 6 p.m. to 5 a.m., one eastbound and westbound lane closed between Route BB and Independence Drive.
• Route 100, Franklin County, 7 p.m. to 5:30 a.m. and 8 a.m. to 6 p.m., one eastbound lane closed between Washington and Route AT.
• 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 MM, Franklin County, 9 a.m. to 2 p.m., closed at the intersection of Route MM and Main Street.
• Route O, Franklin County, 6:30 a.m. to 8 p.m., one lane closed between Route N and Route F. Flaggers will direct traffic through the work zone.

Wednesday, May 21

• 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, 7 p.m. to 5 a.m., one eastbound south outer road closed at Bowles.
• 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 67, St. Louis County, 9 a.m. to 1 p.m., one southbound lane closed inside the Lindbergh tunnel.
• Route 109, St. Louis County, 7 p.m. to 5 a.m., one lane closed in either direction from Eatherton to Clayton.
• 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 109, St. Louis County, 7 p.m. to 5 a.m., one lane in either direction closed from Eatherton to Clayton.
• Route 340, St. Louis County, 8 a.m. to 2 p.m., one lane closed at North and South Rd.
• 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.
• 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 N, St. Louis County, 7 a.m. to 3 p.m., one northbound and one southbound lane closed between Augusta and Brotherton.
• 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.
• I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed from southbound Route K to I-64 loop ramp.
• 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 northbound and southbound lane closed from Route D to Route N.
• Route 21, Jefferson County, 7 a.m. to 5 p.m., one northbound and southbound lane closed from Schenk Road to Route 141.
• Route 61, Jefferson County, 8 a.m. to 2 p.m., right turn lane closed at Route TT.
• Route M, Jefferson County, 7 a.m. to 5 p.m., one lane closed from Route AT to Route 100.
• 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 50, Franklin County, 6 p.m. to 5 a.m., one eastbound and westbound lane closed between Route BB and Independence Drive.
• Route 100, Franklin County, 7 p.m. to 5:30 a.m. and 8 a.m. to 6 p.m., one eastbound lane closed between Washington and Route AT.
• 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 O, Franklin County, 6:30 a.m. to 8 p.m., one lane closed between Route N and Route F. Flaggers will direct traffic through the work zone.

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