St. Louis Work Zones Dec. 18-24…

ST. LOUIS - To help motorists travel around the state for the upcoming Christmas holiday, the Missouri Department of Transportation will restrict most construction on interstates and state highways from noon on Wednesday, Dec. 24 until 6 a.m. Friday, Dec. 26. Restrictions will still be in place in areas where there are permanent barriers and if required, crews will close lanes for emergency maintenance.

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, one southbound lane closed from I-44 to north of Bates and two southbound lanes closed north of Bates to north of Weber through early 2026.
• 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 early 2026.
• I-55, St. Louis City, the ramp from Virginia to southbound is closed through early 2026.
• I-55, St. Louis City, the ramp from southbound to Loughborough and the Loughborough on-ramp to southbound will be closed through early 2026.
• I-55, St. Louis City, the ramp from Lafayette/Truman to southbound is closed through early 2026.
• I-55, St. Louis City, the ramp from Germania to northbound is closed through early 2026.
• I-55, St. Louis City, the ramp from southbound to Germania is through early 2026.
• I-270, St. Louis County, various northbound and southbound lanes narrowed between I-64 and Olive through early 2026.
• I-270. St. Louis County, Conway Rd. under I-270 closed.
• 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, 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 at Lynn Haven/Taylor.
• Route 67, one northbound lane closed from Washington to St. Ferdinand.
• 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 N, St. Louis County, one northbound lane closed from Signal Hill Dr. to Bernhardt Ave.
• I-64, St. Charles County, North Outer Road/Technology Drive bridge closed through 2025.
• I-70, St. Charles County, North Outer Road westbound at Foristell temporary slip ramp in place through January 2026.
• 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, Route CC fully closed at Route 67. No access to 67 on both sides of the intersection.
• Route 67, Jefferson County, one southbound 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.
• Route MM, Franklin County, all lanes closed between Route T and Coleman Road.

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

Thursday, December 18

• I-270, St. Louis County, 6 a.m. to 5 p.m., one lane closed along Pershall Rd. from Hanley to Hazelwood Ave.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed from Green Park to Reavis Road.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed from Green Park to Gravois.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one eastbound lane closed between Barrett Station Road and Westmark Drive.
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one westbound lane closed from MacKenzie to Grant.
• Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed eastbound or westbound at Coeur DeVille intersection; between Emerson Rd. and Coeur DeVille Dr. Flaggers will direct traffic through the two-lane portions of Route AB.
• I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed from I-70 to Route K.
• I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed from Route K to I-70.
• I-70, St. Charles County, 9 p.m. to 5:30 a.m., one eastbound lane closed from Wentzville Parkway to Route A.
• I-70, St. Charles County, 9 p.m. to 5:30 a.m., one westbound lane closed from Route A to Route Z.
• I-70, St. Charles County, 8 p.m. to 6 a.m., one westbound lane closed between Wentzville Parkway to Foristell.
• I-70, St. Charles County, 9 a.m. to 3 p.m., one lane closed on Route W at Foristell. Flaggers will direct traffic through construction zone.
• I-55, Jefferson County, 11 p.m. to 4 a.m., southbound I-55 closed at BNSF Railway bridge.
• Route 30, Jefferson County, 9 a.m. to 6 p.m., one lane closed from Route PP to Diehl Rd.

Friday, December 19

• I-270, St. Louis County, 6 a.m. to 5 p.m., one lane closed along Pershall Rd. from Hanley to Hazelwood Ave.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed from Green Park to Reavis Road.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed from Green Park to Gravois.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one eastbound lane closed between Barrett Station Road and Westmark Drive.
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one westbound lane closed from MacKenzie to Grant.
• Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed eastbound or westbound at Coeur DeVille intersection; between Emerson Rd. and Coeur DeVille Dr. Flaggers will direct traffic through the two-lane portions of Route AB.
• I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed from I-70 to Route K.
• I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed from Route K to I-70.
• I-70, St. Charles County, 9 p.m. to 5:30 a.m., one eastbound lane closed from Wentzville Parkway to Route A.
• I-70, St. Charles County, 9 p.m. to 5:30 a.m., one westbound lane closed from Route A to Route Z.
• I-70, St. Charles County, 8 p.m. to 6 a.m., one westbound lane closed between Wentzville Parkway to Foristell.
• I-70, St. Charles County, 9 a.m. to 3 p.m., one lane closed on Route W at Foristell. Flaggers will direct traffic through construction zone.
• Route 370, St. Charles County, 9 a.m. to 5 p.m., one eastbound lane closed from Mel Wetter Parkway overpass to eastbound Route 370 exit to Route 141.
• Route 370, St. Charles County, 9 a.m. to 5 p.m., one westbound lane closed from on ramp for Route 141 to Route 370 overpass at Roue 94.
• I-55, Jefferson County, 11 p.m. to 4 a.m., southbound I-55 closed at BNSF Railway bridge.
• Route 30, Jefferson County, 9 a.m. to 6 p.m., one lane closed from Route PP to Diehl Rd.

Saturday, December 20

• I-55, Jefferson County, 11 p.m. to 4 a.m., southbound I-55 closed at BNSF Railway bridge.

Sunday, December 21

Monday, December 22

• I-270, St. Louis County, 6 a.m. to 5 p.m., one lane closed along Pershall Rd. from Hanley to Hazelwood Ave.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed from Green Park to Reavis Road.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed from Green Park to Gravois.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one eastbound lane closed between Barrett Station Road and Westmark Drive.
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one westbound lane closed from MacKenzie to Grant.
• Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed eastbound or westbound at Coeur DeVille intersection; between Emerson Rd. and Coeur DeVille Dr. Flaggers will direct traffic through the two-lane portions of Route AB.
• I-64, St. Charles County, 9 a.m. to 2 p.m., one westbound lane closed between Route K and Route 364.
• Route 30, Jefferson County, 5 a.m. to 3 p.m., one lane closed from Route PP to Diehl Rd.

Tuesday, December 23

• I-270, St. Louis County, 6 a.m. to 5 p.m., one lane closed along Pershall Rd. from Hanley to Hazelwood Ave.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed from Green Park to Reavis Road.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed from Green Park to Gravois.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one eastbound lane closed between Barrett Station Road and Westmark Drive.
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one westbound lane closed from MacKenzie to Grant.
• Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed eastbound or westbound at Coeur DeVille intersection; between Emerson Rd. and Coeur DeVille Dr. Flaggers will direct traffic through the two-lane portions of Route AB.
• I-64, St. Charles County, 9 a.m. to 2 p.m., one westbound lane closed between Route K and Route 364.
• Route 30, Jefferson County, 5 a.m. to 3 p.m., one lane closed from Route PP to Diehl Rd.

Wednesday, December 24

• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed from Green Park to Reavis Road.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed from Green Park to Gravois.
• Route 100, St. Louis County, 7 a.m. to 12 p.m., one eastbound lane closed between Barrett Station Road and Westmark Drive.
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one westbound lane closed from MacKenzie to Grant.
• Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed eastbound or westbound at Coeur DeVille intersection; between Emerson Rd. and Coeur DeVille Dr. Flaggers will direct traffic through the two-lane portions of Route AB.

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