St. Louis Work Zones April 2-8

ST. LOUIS - Motorists who travel Interstate 44 in Franklin County should be aware of overnight closures on westbound Interstate 44 at Route D. Work is scheduled to begin the night of April 6, 2026.

Crews will work overnight to repair a bridge girder damaged by an oversized load in 2025. Closures will occur during the following times:

• Monday through Friday: 8 p.m. to 7 a.m.
• Saturday and Sunday: 7 p.m. to 7 a.m.

During most work nights, both westbound lanes of I-44 beneath the Route D bridge will be closed. Westbound traffic will be reduced to one lane then detoured up and over the exit ramps at Route D. As part of this repair, the Route D bridge over I-44 will also be closed overnight.

Drivers traveling westbound on I-44 should expect delays and are encouraged to plan ahead, allow extra travel time, or seek alternate routes. Multiple detours will be in place to guide motorists safely through the area.

Eastbound I-44 and the eastbound on- and off-ramps at Route D are expected to remain open and unaffected, except for access across the Route D bridge during closure periods.

This work is expected to take approximately 6 to 8 weeks of overnight work to complete, 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-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 Virginia on ramp to southbound I-55 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-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 AB, St. Louis County, one eastbound and westbound lane closed under I-270.
• 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 spring 2026.
• Route 94, St. Charles County, one left-turn lane for on ramp to eastbound 370 closed.
• Route 370, St. Charles County, two westbound lanes moved to the eastbound Discovery Bridge across the Missouri River until late 2027.
• I-55, Jefferson County, up to three lanes closed northbound between Route 141 and Meramec Bottom.
• I-55, Jefferson County, one southbound lane closed at the Meramec River.
• 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, one southbound lane closed between Route 141 and Meramec Bottom until 2027.
• 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, closed at the Farinella Nursery.

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

Thursday, April 2

• I-44, St. Louis County, 7 p.m. to 5 a.m., two eastbound lanes closed between Route 109 and Route 141.
• I-255, St. Louis County, 8 p.m. to 5 a.m., one northbound/southbound lane closed between Koch Road and I-55.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound/southbound lane closed between Green Park and Route 30.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound/southbound lane closed between Lutheran High and Suson Hills.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound/westbound lane closed between Eddie and Park Road and Valcour Avenue.
• Route 30, St. Louis County, 7 a.m.to 3 p.m., one lane closed eastbound and westbound between I-270 and Seibert Road.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one westbound lane closed between Weidman Road and Enchanted Parkway.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one lane closed between I-270 and North Office Parkway.
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one eastbound and westbound lane closed between Grant and Laclede Station Road.
• Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed eastbound at I-270.
• Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed westbound between Ambleside Lane and Ladue Lakes Drive. 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 between I-70 to Route 364.
• I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Route 364 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, 8 a.m. to 1 p.m., one lane closed westbound between Wentzville Parkway and David Hoeckel Parkway.
• Route C, St. Charles County, 7 a.m. to 4 p.m., one lane closed just north of Salt River Road. St. Charles County Highway Department flaggers will direct traffic through the work zone.
• Route Z, St. Charles County, 10 p.m. to 5 a.m., all lanes closed between the eastbound and westbound I-70 ramps.
• I-55, Jefferson County, 7 p.m. to 5 a.m., up to two northbound lanes closed at Route Z.
• I-55, Jefferson County, 8 p.m. to 6 a.m., up to two southbound lanes closed at Route Z.
• Route 21, Jefferson County, 7 p.m. to 5 a.m., one lane closed between Big River to Route B. Flaggers and a pilot car will direct traffic through the work zone.
• Route 30, Jefferson County, 5 p.m. to 6 a.m., one lane closed between Ridge Road and Route NN. A pilot car will direct traffic through the work zone.
• I-44, Franklin County, 8 p.m. to 7 a.m., all westbound I-44 lanes closed at the Route D bridge. The Route D bridge will also be closed. Westbound I-44 traffic will be diverted up and over the exit ramps at I-44 and Route D.

Friday, April 3

• I-44, St. Louis County, 7 p.m. to 5 a.m., two eastbound lanes closed between Route 109 and Route 141.
• I-255, St. Louis County, 8 p.m. to 5 a.m., one northbound/southbound lane closed between Koch Road and I-55.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound/southbound lane closed between Green Park and Route 30.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound/southbound lane closed between Lutheran High and Suson Hills.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound/westbound lane closed between Eddie and Park Road and Valcour Avenue.
• Route 30, St. Louis County, 7 a.m.to 3 p.m., one lane closed eastbound and westbound between I-270 and Seibert Road.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one westbound lane closed between Weidman Road and Enchanted Parkway.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one lane closed between I-270 and North Office Parkway.
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one eastbound and westbound lane closed between Grant and Laclede Station Road.
• Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed eastbound at I-270.
• Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed westbound between Ambleside Lane and Ladue Lakes Drive. 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 between I-70 to Route 364.
• I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Route 364 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, 8 a.m. to 1 p.m., one lane closed westbound between Wentzville Parkway and David Hoeckel Parkway.
• Route Z, St. Charles County, 10 p.m. to 5 a.m., all lanes closed between the eastbound and westbound I-70 ramps.
• I-55, Jefferson County, 7 p.m. to 5 a.m., up to two northbound lanes closed at Route Z.
• I-55, Jefferson County, 8 p.m. to 6 a.m., up to two southbound lanes closed at Route Z.
• Route 21, Jefferson County, 7 p.m. to 5 a.m., one lane closed between Big River to Route B. Flaggers and a pilot car will direct traffic through the work zone.
• Route 30, Jefferson County, 5 p.m. to 6 a.m., one lane closed between Ridge Road and Route NN. A pilot car will direct traffic through the work zone.
• I-44, Franklin County, 8 p.m. to 7 a.m., all westbound I-44 lanes closed at the Route D bridge. The Route D bridge will also be closed. Westbound I-44 traffic will be diverted up and over the exit ramps at I-44 and Route D.

Saturday, April 4

• I-44, Franklin County, 8 p.m. to 7 a.m., all westbound I-44 lanes closed at the Route D bridge. The Route D bridge will also be closed. Westbound I-44 traffic will be diverted up and over the exit ramps at I-44 and Route D.

Sunday, April 5

• I-44, Franklin County, 8 p.m. to 7 a.m., all westbound I-44 lanes closed at the Route D bridge. The Route D bridge will also be closed. Westbound I-44 traffic will be diverted up and over the exit ramps at I-44 and Route D.

Monday, April 6

• I-44, St. Louis County, 7 p.m. to 5 a.m., two eastbound lanes closed between Route 109 and Route 141.
• I-255, St. Louis County, 8 p.m. to 5 a.m., one northbound/southbound lane closed between Koch Road and I-55.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound/southbound lane closed between Green Park and Route 30.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound/southbound lane closed between Lutheran High and Suson Hills.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound/westbound lane closed between Eddie and Park Road and Valcour Avenue.
• Route 30, St. Louis County, 7 a.m.to 3 p.m., one lane closed eastbound and westbound between I-270 and Seibert Road.
• Route 61, St. Louis County, 7 a.m. to 3 p.m., one northbound/southbound lane closed over Mattese Creek Bridge.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one westbound lane closed between Sam's Drive and Barrett Station Road.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one westbound lane closed between Weidman Road and Enchanted Parkway.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one lane closed between I-270 and North Office Parkway.
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one eastbound and westbound lane closed between Grant and Laclede Station Road.
• Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed eastbound at I-270.
• Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed westbound between Ambleside Lane and Ladue Lakes Drive. 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 between I-70 to Route 364.
• I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Route 364 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-55, Jefferson County, 7 p.m. to 5 a.m., up to two northbound lanes closed at Route Z.
• I-55, Jefferson County, 8 p.m. to 6 a.m., up to two southbound lanes closed at Route Z.
• Route 21, Jefferson County, 7 p.m. to 5 a.m., one lane closed between Big River to Route B. Flaggers and a pilot car will direct traffic through the work zone.
• Route 30, Jefferson County, 5 p.m. to 6 a.m., one lane closed between Ridge Road and Route NN. A pilot car will direct traffic through the work zone.
• I-44, Franklin County, 8 p.m. to 7 a.m., all westbound I-44 lanes closed at the Route D bridge. The Route D bridge will also be closed. Westbound I-44 traffic will be diverted up and over the exit ramps at I-44 and Route D.

Tuesday, April 7

• I-44, St. Louis County, 7 p.m. to 5 a.m., two eastbound lanes closed between Route 109 and Route 141.
• I-255, St. Louis County, 8 p.m. to 5 a.m., one northbound/southbound lane closed between Koch Road and I-55.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound/southbound lane closed between Green Park and Route 30.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound/southbound lane closed between Lutheran High and Suson Hills.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound/westbound lane closed between Eddie and Park Road and Valcour Avenue.
• Route 30, St. Louis County, 7 a.m.to 3 p.m., one lane closed eastbound and westbound between I-270 and Seibert Road.
• Route 61, St. Louis County, 7 a.m. to 3 p.m., one northbound/southbound lane closed over Mattese Creek Bridge.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one westbound lane closed between Sam's Drive and Barrett Station Road.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one westbound lane closed between Weidman Road and Enchanted Parkway.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one lane closed between I-270 and North Office Parkway.
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one eastbound and westbound lane closed between Grant and Laclede Station Road.
• Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed eastbound at I-270.
• Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed westbound between Ambleside Lane and Ladue Lakes Drive. 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 between I-70 to Route 364.
• I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Route 364 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-55, Jefferson County, 7 p.m. to 5 a.m., up to two northbound lanes closed at Route Z.
• I-55, Jefferson County, 8 p.m. to 6 a.m., up to two southbound lanes closed at Route Z.
• Route 21, Jefferson County, 7 p.m. to 5 a.m., one lane closed between Big River to Route B. Flaggers and a pilot car will direct traffic through the work zone.
• Route 30, Jefferson County, 5 p.m. to 6 a.m., one lane closed between Ridge Road and Route NN. A pilot car will direct traffic through the work zone.
• I-44, Franklin County, 8 p.m. to 7 a.m., all westbound I-44 lanes closed at the Route D bridge. The Route D bridge will also be closed. Westbound I-44 traffic will be diverted up and over the exit ramps at I-44 and Route D.

Wednesday, April 8

• I-44, St. Louis County, 7 p.m. to 5 a.m., two eastbound lanes closed between Route 109 and Route 141.
• I-255, St. Louis County, 8 p.m. to 5 a.m., one northbound/southbound lane closed between Koch Road and I-55.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound/southbound lane closed between Green Park and Route 30.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound/southbound lane closed between Lutheran High and Suson Hills.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound/westbound lane closed between Eddie and Park Road and Valcour Avenue.
• Route 30, St. Louis County, 7 a.m.to 3 p.m., one lane closed eastbound and westbound between I-270 and Seibert Road.
• Route 61, St. Louis County, 7 a.m. to 3 p.m., one northbound/southbound lane closed over Mattese Creek Bridge.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one westbound lane closed between Sam's Drive and Barrett Station Road.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one westbound lane closed between Weidman Road and Enchanted Parkway.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one lane closed between I-270 and North Office Parkway.
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one eastbound and westbound lane closed between Grant and Laclede Station Road.
• Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed eastbound at I-270.
• Route AB, St. Louis County, 7 a.m. to 3 p.m., one lane closed westbound between Ambleside Lane and Ladue Lakes Drive. 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 between I-70 to Route 364.
• I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Route 364 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-55, Jefferson County, 7 p.m. to 5 a.m., up to two northbound lanes closed at Route Z.
• I-55, Jefferson County, 8 p.m. to 6 a.m., up to two southbound lanes closed at Route Z.
• Route 21, Jefferson County, 7 p.m. to 5 a.m., one lane closed between Big River to Route B. Flaggers and a pilot car will direct traffic through the work zone.
• Route 30, Jefferson County, 5 p.m. to 6 a.m., one lane closed between Ridge Road and Route NN. A pilot car will direct traffic through the work zone.
• I-44, Franklin County, 8 p.m. to 7 a.m., all westbound I-44 lanes closed at the Route D bridge. The Route D bridge will also be closed. Westbound I-44 traffic will be diverted up and over the exit ramps at I-44 and Route D.

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