St. Louis Work Zones April 23-29

ST. LOUIS - Drivers who use Interstate 270 near Ladue Road should be aware that crews will close and shift several lanes overnight next week.

Weather permitting, crews will close up to two additional southbound and northbound lanes on I-270 near Ladue overnight Monday, April 27 and Tuesday, April 28. One lane closes at 8 p.m., with the second closing by 10 p.m. At least one northbound and southbound lane will remain open through the traffic shift. Closed lanes reopen by 5 a.m. the following morning. During the work, southbound lanes will be shifted to the right. Northbound lanes will be shifted to the left with barrier wall separating two of the four through lanes. The northbound exit to Ladue Road will be unaffected.

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 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.
• I-55, St. Louis City, one southbound lane closed from Gasconade to Weber.
• I-55, St. Louis City, the ramp from Germania to northbound is closed.
• I-55, St. Louis City, southbound lanes closed from Park to Arsenal starting Tuesday, April 28.
• 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 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.
• I-70, St. Charles County, beginning Monday, April 27, westbound on-ramp closed at Foristell.
• I-70, St. Charles County, beginning Monday, April 27, one eastbound north outer road lane closed west of Route W.
• Route 94, St. Charles County, one left-turn lane for on ramp to eastbound 370 closed through late 2027.
• 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 and southbound between Route 141 and Meramec Bottom.
• 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.
• 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 16

• I-44, St. Louis County, 8 p.m. to 6 a.m., two lanes closed westbound between Route 141 and Route 109.
• I-55, St. Louis City, 8 a.m. to 1 p.m., one southbound lane closed from Park to Arsenal.
• I-255, St. Louis County, 8 p.m. to 5 a.m., one lane closed eastbound and westbound between the Jefferson Barracks Bridge over the Mississippi River and Interstate 55.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed between Green Park and Gravois.
• Route 30, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed between Elgin and Valcour.
• Route 30, St. Louis County, 6 p.m. to 5 a.m., one eastbound and westbound lane closed between Route 21 and Route P.
• Route 61/67, St. Louis County, 7 p.m. to 6 a.m., one northbound lane closed between Baumgartner and Butler Hill.
• Route 61/67, St. Louis County, 7 a.m. to 3 p.m., one lane closed northbound and southbound over Mattese Creek.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one westbound lane closed between Weidman Road and Enchanted Parkway.
• Route 100, St. Louis County, 8:30 a.m. to 2 p.m., one westbound lane closed between Highland Boulevard and Route 141.
• Route 231, St. Louis County, 8:30 a.m. to 3:30 p.m., one northbound lane closed between Christopher Dr. and Erb Rd.
• 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 N, St. Louis County, 6 a.m. to 3:30 p.m., various lanes closed between Brotherton and Cool Valley; and Route 115 to south of University Place.
• 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 A, Jefferson County, 8 p.m. to 5 a.m., one lane closed in each direction between Collins Drive and Route 61/67.
• 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 V, Jefferson County, 8 a.m. to 3:30 p.m., one lane closed over Joachim Creek. A temporary signal will help direct traffic through the work zone.
• Route CC, Jefferson County, 6 p.m. to 5 a.m., one lane closed between Route 110 and Route 67.
• 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.
• Route PP, Franklin County, 7 a.m. to 4 p.m., one lane closed in various locations.

Friday, April 17

• I-44, St. Louis County, 8 p.m. to 6 a.m., two lanes closed westbound between Route 141 and Route 109.
• I-255, St. Louis County, 8 p.m. to 5 a.m., one lane closed eastbound and westbound between the Jefferson Barracks Bridge over the Mississippi River and Interstate 55.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed between Green Park and Gravois.
• Route 30, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed between Elgin and Valcour.
• Route 61/67, St. Louis County, 7 p.m. to 6 a.m., one northbound lane closed between Baumgartner and Butler Hill.
• Route 61/67, St. Louis County, 7 a.m. to 3 p.m., one lane closed northbound and southbound over Mattese Creek.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one westbound lane closed between Weidman Road and Enchanted Parkway.
• Route 100, St. Louis County, 8:30 a.m. to 2 p.m., one westbound lane closed between Highland Boulevard and Route 141.
• Route 231, St. Louis County, 8:30 a.m. to 3:30 p.m., one northbound lane closed between Christopher Dr. and Erb Rd.
• 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 N, St. Louis County, 6 a.m. to 3:30 p.m., various lanes closed between Brotherton and Cool Valley; and Route 115 to south of University Place.
• 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 A, Jefferson County, 8 p.m. to 5 a.m., one lane closed in each direction between Collins Drive and Route 61/67.
• Route CC, Jefferson County 6 p.m. to 5 a.m., one lane closed between Route 110 and Route 67.
• 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.
• Route PP, Franklin County, 7 a.m. to 4 p.m., one lane closed in various locations.

Saturday, April 18

• I-255, St. Louis County, 8 p.m. to 5 a.m., one lane closed eastbound and westbound between the Jefferson Barracks Bridge over the Mississippi River and Interstate 55.
• 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 19

• 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 20

• Route 100, St. Louis City, 5 a.m. to 7 p.m., one lane closed from 39th to Jefferson.
• I-44, St. Louis County, 8 p.m. to 6 a.m., two lanes closed westbound between Route 141 and Route 109.
• I-170, St. Louis County, 9 a.m. tp 3:30 p.m., one northbound lane closed at Lackland.
• I-255, St. Louis County, 8 p.m. to 5 a.m., one land closed eastbound and westbound between the Jefferson Barracks Bridge over the Mississippi River and Interstate 55.
• I-270, St. Louis County, 8 p.m. to 5 a.m., up to two southbound lanes closed between Olive and I-64.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed between Green Park and Gravois.
• Route 30, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed between Elgin and Valcour.
• Route 30, St. Louis County, 7 p.m. to 6 a.m., one eastbound and westbound lane closed east of Laclede Station Rd. to Route 141.
• Route 61/67, St. Louis County, 7 p.m. to 6 a.m., one northbound lane closed between Baumgartner and Butler Hill.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one westbound lane closed between Weidman Road and Enchanted Parkway.
• Route 100, St. Louis County, 8:30 a.m. to 2 p.m., one westbound lane closed between Highland Boulevard and Route 141.
• Route 231, St. Louis County, 8:30 a.m. to 3:30 p.m., one northbound lane closed between Christopher Dr. and Erb Rd.
• 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 N, St. Louis County, 6 a.m. to 3:30 p.m., various lanes closed between Brotherton and Cool Valley; and Route 115 to south of University Place.
• 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 A, Jefferson County, 8 p.m. to 5 a.m., one lane closed in each direction between Collins Drive and Route 61/67.
• Route V, Jefferson County, 8 a.m. to 3:30 p.m., one lane closed over Joachim Creek. A temporary signal will help direct traffic through the work zone.
• Route CC, Jefferson County, 6 p.m. to 5 a.m., one lane closed between Route 110 and Route 67.
• 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.
• I-44, Franklin County, 8 p.m. to 6 a.m., one westbound lane closed at weigh scale.
• Route PP, Franklin County, 8 a.m. to 3 p.m., closed between Route 30 and Pickles Ford Rd.

Tuesday, April 21

• Route 100, St. Louis City, 5 a.m. to 7 p.m., one lane closed from 39th to Jefferson.
• I-44, St. Louis County, 8 p.m. to 6 a.m., two lanes closed westbound between Route 141 and Route 109.
• I-170, St. Louis County, 9 a.m. tp 3:30 p.m., one northbound lane closed at Lackland.
• I-255, St. Louis County, 8 p.m. to 5 a.m., one lane closed eastbound and westbound between the Jefferson Barracks Bridge over the Mississippi River and Interstate 55.
• I-270, St. Louis County, 8 p.m. to 5 a.m., up to two southbound lanes closed between Olive and I-64.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed between Green Park and Gravois.
• Route 30, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed between Elgin and Valcour.
• Route 30, St. Louis County, 7 p.m. to 6 a.m., one eastbound and westbound lane closed east of Laclede Station Rd. to Route 141.
• Route 61/67, St. Louis County, 7 p.m. to 6 a.m., one northbound lane closed between Baumgartner and Butler Hill.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one westbound lane closed between Weidman Road and Enchanted Parkway.
• Route 100, St. Louis County, 8:30 a.m. to 2 p.m., one westbound lane closed between Highland Boulevard and Route 141.
• Route 231, St. Louis County, 8:30 a.m. to 3:30 p.m., one northbound lane closed between Christopher Dr. and Erb Rd.
• 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 N, St. Louis County, 6 a.m. to 3:30 p.m., various lanes closed between Brotherton and Cool Valley; and Route 115 to south of University Place.
• 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 A, Jefferson County, 8 p.m. to 5 a.m., one lane closed in each direction between Collins Drive and Route 61/67.
• Route CC, Jefferson County, 6 p.m. to 5 a.m., one lane closed between Route 110 and Route 67.
• Route V, Jefferson County, 8 a.m. to 3:30 p.m., one lane closed over Joachim Creek. A temporary signal will help 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.
• I-44, Franklin County, 8 p.m. to 6 a.m., one westbound lane closed at weigh scale.
• Route PP, Franklin County, 8 a.m. to 3 p.m., closed between Route 30 and Pickles Ford Rd.

Wednesday, April 22

• Route 100, St. Louis City, 5 a.m. to 7 p.m., one lane closed from 39th to Jefferson.
• I-44, St. Louis County, 8 p.m. to 6 a.m., two lanes closed westbound between Route 141 and Route 109.
• I-170, St. Louis County, 9 a.m. tp 3:30 p.m., one northbound lane closed at Lackland.
• I-270, St. Louis County, 8 p.m. to 5 a.m., up to two southbound lanes closed between Olive and I-64.
• I-255, St. Louis County, 8 p.m. to 5 a.m., one lane closed eastbound and westbound between the Jefferson Barracks Bridge over the Mississippi River and Interstate 55.
• Route 21, St. Louis County, 6 a.m. to 2 p.m., one northbound and southbound lane closed between Green Park and Gravois.
• Route 30, St. Louis County, 7 p.m. to 6 a.m., one eastbound and westbound lane closed east of Laclede Station Rd. to Route 141.
• Route 30, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed between Elgin and Valcour.
• Route 61/67, St. Louis County, 7 p.m. to 6 a.m., one northbound lane closed between Baumgartner and Butler Hill.
• Route 100, St. Louis County, 7 a.m. to 3 p.m., one westbound lane closed between Weidman Road and Enchanted Parkway.
• Route 100, St. Louis County, 8:30 a.m. to 2 p.m., one westbound lane closed between Highland Boulevard and Route 141.
• Route 231, St. Louis County, 8:30 a.m. to 3:30 p.m., one northbound lane closed between Christopher Dr. and Erb Rd.
• 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 N, St. Louis County, 6 a.m. to 3:30 p.m., various lanes closed between Brotherton and Cool Valley; and Route 115 to south of University Place.
• 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 A, Jefferson County, 8 p.m. to 5 a.m., one lane closed in each direction between Collins Drive and Route 61/67.
• Route CC, Jefferson County, 6 p.m. to 5 a.m., one lane closed between Route 110 and Route 67.
• Route V, Jefferson County, 8 a.m. to 3:30 p.m., one lane closed over Joachim Creek. A temporary signal will help 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.
• I-44, Franklin County, 8 p.m. to 6 a.m., one westbound lane closed at weigh scale.
• Route PP, Franklin County, 8 a.m. to 3 p.m., closed between Route 30 and Pickles Ford Rd.

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