St. Louis Work Zones July 9-15

ST. LOUIS - Crews with the Improve I-70 Warrenton to Wentzville Project will close eastbound and westbound Interstate 70 at the I-70/I-64/U.S. 61 interchange overnights starting Wednesday, July 8. All work is weather permitting.

All eastbound I-70 lanes will be closed overnight from 9 p.m. to 5 a.m. from July 8-10 and then on July 13. Detours will be in place for eastbound I-70 and southbound U.S. Route 61:

• Eastbound I-70 traffic will be reduced to one lane and detour to eastbound I-64 exit ramp (exit number 210A) and then detour using the eastbound I-70 left exit ramp to access eastbound I-70.
• Southbound Route 61 traffic will be reduced to one lane and detour to westbound I-70 and use the Route Z interchange (exit 209) to turn around to head eastbound on I-70 or eastbound on I-64.
• Eastbound I-70 traffic exiting to northbound Route 61 will take the eastbound I-64 exit ramp (exit 210A), detour to eastbound I-70 using the I-70 left exit ramp, turn around at the Route A interchange (exit number 211), and exit to northbound Route 61 (exit 210B).
• Westbound I-70 traffic exiting to eastbound I-64 will detour and use the Route Z interchange (exit 209) to turn around to head eastbound on I-70 and exit to eastbound I-64 (exit 210A).

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, the Gasconade on-ramp to northbound I-55 reopens Friday
• I-55, St. Louis City, one northbound lane from 4500 Broadway to Potomac reopens Friday.
• I-270, St. Louis County, on-ramp from Riverview Drive to westbound I-270 closed.
• I-270, St. Louis County, the exit ramp closed from eastbound I-270 to Riverview through late August 2026.
• 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 northbound from the Missouri River to just north of Route 94 through late 2027.
• Route 100, St. Louis County, one eastbound and westbound lane closed from Mason Lane to Barrett Station Road through late 2026.
• Route 100, St. Louis County, one eastbound and westbound lane closed from Weidman Rd. to Manchester Meadows through late 2026
• Route 141, St. Louis County, one right lane closed northbound near I-44 from 6 a.m. Monday until early August.
• Route 366, St. Louis County, one eastbound and westbound lane closed between Watson Industrial to Pardee, through the end of 2026.
• Route N, St. Louis County, one northbound lane closed from Signal Hill Dr. to Bernhardt Avenue.
• I-70, St. Charles County, Veterans Memorial Parkway will be closed from Callahan Road to Corporate Parkway from 8 a.m. Monday through early August.
• Route 94, St. Charles County, one left-turn lane for the on-ramp to the eastbound 370 closed through late 2027.
• Route 370, St. Charles County, two westbound lanes moved to the eastbound Discovery Bridge across the Missouri River. Two eastbound lanes shifted to the right. Temporary barrier to divide eastbound and westbound lanes.
• I-55, Jefferson County, one southbound lane closed just north of Route Z.
• I-55, Jefferson County, the southbound on and off ramps connecting to Route Z closed.
• Route 61/67, Jefferson County, one lane closed northbound and southbound from Brandon Wallace Way to 6th/8th Street through summer 2027.
• Route 67, Jefferson County, one 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.

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

Thursday, July 9

• I-55, St. Louis City, 8 a.m. to 2 p.m., one northbound lane closed from Lafayette Ave to Park Avenue.
• I-64, St. Louis City, 9 a.m. to 3 p.m., one westbound lane closed at Grand.
• I-270, St. Louis County, 8 p.m. to 5 a.m., up to three lanes closed northbound and southbound between I-64 and Ladue.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane between Valcour and Baptist Church.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one lane closed from Rock Hill to Baptist Church.
• Route 30, St. Louis County, 7 p.m. to 6 a.m., one lane closed in either direction between River Des Peres to Laclede Station.
• Route 61/67, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane from Meramec River to Lindbergh.
• Route 100, St. Louis County, 7:30 a.m. to 3 p.m., one eastbound lane closed from Knollhaven and Weidman Road.
• Route 267, St. Louis County, 6 a.m. to 3 p.m., one lane closed from Bayless to S. Lindbergh.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed between I-270 and North Office Parkway.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one right lane closed I-170 to 82nd
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one lane closed from Laclede Station to Pardee.
• Route 370, St. Louis County, 6 a.m. to 6 p.m., one eastbound lane in St. Louis County is closed from Route 141 to the I-270 ramps.
• I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed between I-70 to Prospect.
• I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Prospect and I-70.
• I-70, St. Charles County, 9 p.m. to 5 a.m., all eastbound lanes closed at the I-64/Route 61 interchange.
• I-70, St. Charles County, 9 p.m. to 5:30 a.m., two lanes closed westbound from 5th Street to Lake St. Louis Boulevard.
• I-70, St. Charles County, 9 p.m. to 5 a.m., all eastbound lanes closed at the I-64/Route 61 interchange.
• Veteran's Memorial Parkway, St. Charles County, 7 p.m. to 6 a.m., full closure of Route W (Foristell).
• I-55, Jefferson County, 7 p.m. to 5 a.m., the ramps between northbound I-55 and McNutt will be closed.
• Route PP, Jefferson County, 8 a.m. to 3 p.m., all lanes closed. Traffic will be detoured.
• Route 185, Franklin County, 7 a.m. to 2:30 p.m., one lane closed over the Meramec River. Flaggers will direct traffic through the work zone.
• Route FF, Franklin County, 8 a.m. to 2:30 p.m., one lane closed over the Little Meramec River. Flaggers will direct traffic through the work zone.

Friday, July 10

• I-64, St. Louis City, 9 a.m. to 3 p.m., one westbound lane closed at Grand.
• I-170, St. Louis County, 9 a.m. to 2 p.m., one northbound lane closed from I-64 to Delmar.
• I-270, St. Louis County, 8 p.m. to 5 a.m., up to three lanes closed northbound and southbound between I-64 and Ladue.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane between Valcour and Baptist Church.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one lane closed from Rock Hill to Baptist Church.
• Route 30, St. Louis County, 7 p.m. to 6 a.m., one lane closed in either direction between River Des Peres to Laclede Station.
• Route 61/67, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane from Meramec River to Lindbergh.
• Route 100, St. Louis County, 7:30 a.m. to 3 p.m., one eastbound lane closed from Knollhaven and Weidman Road.
• Route 231, St. Louis County, 11 a.m. Friday, July 10 to 11 a.m. Sunday, July 12, lanes closed from Route 231 in east and west direction.
• Route 267, St. Louis County, 6 a.m. to 3 p.m., one lane closed from Bayless to S. Lindbergh.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed between I-270 and North Office Parkway.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one right lane closed I-170 to 82nd
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one lane closed from Laclede Station to Pardee.
• Route 370, St. Louis County, 6 a.m. to 6 p.m., one eastbound lane in St. Louis County is closed from Route 141 to the I-270 ramps.
• I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed between I-70 to Prospect.
• I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Prospect and I-70.
• I-70, St. Charles County, 9 p.m. to 5 a.m., all eastbound lanes closed at the I-64/Route 61 interchange.
• I-70, St. Charles County, 9 p.m. to 5:30 a.m., two lanes closed westbound from 5th Street to Lake St. Louis Boulevard.
• I-70, St. Charles County, 9 p.m. to 5 a.m., all eastbound lanes closed at the I-64/Route 61 interchange.
• Veteran's Memorial Parkway, St. Charles County, 7 p.m. to 6 a.m., full closure of Route W (Foristell).
• I-55, Jefferson County, 7 p.m. to 5 a.m., the ramps between northbound I-55 and McNutt will be closed.
• I-55, Jefferson County, 9 p.m. to 5 a.m., one lane closed at the southbound I-55 exit ramp to U.S. Route 67.
• I-55, Jefferson County, 7 p.m. to 5 a.m., one closed on northbound I-55 between Route 67 and Manley Quarry.
• Route PP, Jefferson County, 8 a.m. to 3 p.m., all lanes closed. Traffic will be detoured.
• Route 185, Franklin County, 7 a.m. to 2:30 p.m., one lane closed over the Meramec River. Flaggers will direct traffic through the work zone.
• Route FF, Franklin County, 8 a.m. to 2:30 p.m., one lane closed over the Little Meramec River. Flaggers will direct traffic through the work zone.

Saturday, July 11

• Route 100, St. Louis City, 2 -10 p.m., one lane closed from Taylor Avenue to Tower Grove Avenue.
• I-170, St. Louis County, 9 a.m. to 2 p.m., one northbound lane closed from I-64 to Delmar.
• I-255, St. Louis County, 7 a.m. Saturday, July 11 to 7 a.m. Sunday, July 12, one lane will be closed underneath Route 231.
• I-270, St. Louis County, 5 a.m. to 3 p.m., one eastbound lane closed from Lilac to Riverview.
• Route 231, St. Louis County, 11 a.m. Friday, July 10 to 11 a.m. Sunday, July 12, lanes closed from Route 231 in east and west direction.

Sunday, July 12

• I-255, St. Louis County, 7 a.m. Saturday, July 11 to 7 a.m. Sunday, July 12, one lane will be closed underneath Route 231.
• Route 231, St. Louis County, 11 a.m. Friday, July 10 to 11 a.m. Sunday, July 12, lanes closed from Route 231 in east and west direction.

Monday, July 13

• I-44, St. Louis City, starting at 6 a.m. Monday, July 13 until 3 p.m. Wednesday, July 15, the Vandeventer on-ramp to eastbound I-44.
• I-55, St. Louis City, 6 p.m. to 5 a.m., two northbound lanes from Weber Road to Broadway.
• I-270, St. Louis County, 8 p.m. to 5 a.m., up to three lanes closed northbound and southbound between I-64 and Ladue.
• Route 21, St. Louis County, 7 p.m. to 5 a.m., one northbound and southbound lane closed from Old Tesson to I-270.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane between Valcour and Baptist Church.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one lane closed from Rock Hill to Baptist Church.
• Route 30, St. Louis County, 7 p.m. to 6 a.m., one lane closed in either direction between River Des Peres to Laclede Station.
• Route 61/67, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane from Meramec River to Lindbergh.
• Route 67, St. Louis County, 5 a.m. to 12 a.m., one lane closed from the Missouri River to just north of Route 94.
• Route 100, St. Louis County, 7:30 a.m. to 3 p.m., one eastbound lane closed from Knollhaven and Weidman Road.
• Route 100, St. Louis County, 9 p.m. to 5 a.m., one lane closed at Route 141 Intersection.
• Route 100, St. Louis County, 8 p.m. to 5 a.m., two lanes closed eastbound between Barrett Station Road and Centerroyal Drive.
• Route 231, St. Louis County, 11 a.m. Friday, July 10 to 11 a.m. Sunday, July 12, lanes closed from Route 231 in east and west direction.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed between I-270 and North Office Parkway.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one right lane closed I-170 to 82nd
• Route 370, St. Louis County, 6 a.m. to 6 p.m., one eastbound lane in St. Louis County is closed from Route 141 to the I-270 ramps.
• Route 370, St. Louis County, 7 p.m. to 5:30 a.m., one eastbound and westbound lane closed from overpass at Ferguson, Missouri Bottom Road, and Cowmire.
• I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed between I-70 to Prospect.
• I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Prospect and I-70.
• I-70, St. Charles County, 9 p.m. to 5:30 a.m., two lanes closed westbound from 5th Street to Lake St. Louis Boulevard.
• 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, 9 p.m. to 5 a.m., all eastbound lanes closed at the I-64/Route 61 interchange.
• I-70, St. Charles County, 6 a.m. to 2 p.m. & 7 p.m. to 2 p.m., one westbound lane closed at David Hoekel Parkway.
• Veteran's Memorial Parkway, St. Charles County, 9 p.m. to 5 a.m., full closure of Route W (Foristell).
• Veteran's Memorial Parkway, St. Charles County, 7 p.m. to 6 a.m., full closure of Route W (Foristell).
• I-70, St. Charles County, 9 p.m. to 5 a.m., full closure of Route W (Foristell).
• I-55, Jefferson County, 8 p.m. to 6 a.m., one southbound right lane closed from Manley Quarry to Route A.
• I-55, Jefferson County, 7 p.m. to 5 a.m., the ramps between northbound I-55 and McNutt will be closed.
• Route PP, Jefferson County, 8 a.m. to 3 p.m., all lanes closed. Traffic will be detoured.
• Route 30, Franklin County, 5 p.m. to 7 a.m., one lane closed between St. Clair and Route B.
• Route 185, Franklin County, 7 a.m. to 2:30 p.m., one lane closed over the Meramec River. Flaggers will direct traffic through the work zone.
• Route FF, Franklin County, 8 a.m. to 2:30 p.m., one lane closed over the Little Meramec River. Flaggers will direct traffic through the work zone.

Tuesday, July 14

• I-44, St. Louis City, starting at 6 a.m. Monday, July 13 until 3 p.m. Wednesday, July 15, the Vandeventer on-ramp to eastbound I-44.
• I-55, St. Louis City, 6 p.m. to 5 a.m., two northbound lanes from Weber Road to Broadway.
• I-270, St. Louis County, 8 p.m. to 5 a.m., up to three lanes closed northbound and southbound between I-64 and Ladue.
• Route 21, St. Louis County, 7 p.m. to 5 a.m., one northbound and southbound lane closed from Old Tesson to I-270.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane between Valcour and Baptist Church.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one lane closed from Rock Hill to Baptist Church.
• Route 61/67, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane from Meramec River to Lindbergh.
• Route 67, St. Louis County, 5 a.m. to 12 a.m., one lane closed from the Missouri River to just north of Route 94.
• Route 100, St. Louis County, 7:30 a.m. to 3 p.m., one eastbound lane closed from Knollhaven and Weidman Road.
• Route 100, St. Louis County, 8 p.m. to 5 a.m., two lanes closed eastbound between Barrett Station Road and Centerroyal Drive.
• Route 100, St. Louis County, 9 p.m. to 5 a.m., one lane closed at Route 141 Intersection.
• Route 267, St. Louis County, 6 a.m. to 3 p.m., one lane closed from Bayless to S. Lindbergh.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed between I-270 and North Office Parkway.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one right lane closed I-170 to 82nd
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one lane closed from Laclede Station to Pardee.
• Route 370, St. Louis County, 6 a.m. to 6 p.m., one eastbound lane in St. Louis County is closed from Route 141 to the I-270 ramps.
• Route 370, St. Louis County, 7 p.m. to 5:30 a.m., one eastbound and westbound lane closed from overpass at Ferguson, Missouri Bottom Road, and Cowmire.
• I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed between I-70 to Prospect.
• I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Prospect and I-70.
• I-70, St. Charles County, 9 p.m. to 5:30 a.m., two lanes closed westbound from 5th Street to Lake St. Louis Boulevard.
• 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, 9 p.m. to 5 a.m., all eastbound lanes closed at the I-64/Route 61 interchange.
• I-70, St. Charles County, 9 p.m. to 5 a.m., all lanes of I-70 westbound at the I-64/U.S. Route 61 interchange.
• I-70, St. Charles County, 7 p.m. to 2 p.m., one westbound lane closed at David Hoekel Parkway.
• I-70, St. Charles County, 9 p.m. to 5 a.m., loop ramp closed westbound of I-70.
• I-55, Jefferson County, 8 p.m. to 6 a.m., one southbound right lane closed from Manley Quarry to Route A.
• I-55, Jefferson County, 7 p.m. to 5 a.m., the ramps between northbound I-55 and McNutt will be closed.
• Route PP, Jefferson County, 8 a.m. to 3 p.m., all lanes closed. Traffic will be detoured.
• Route 30, Franklin County, 5 p.m. to 7 a.m., one lane closed between St. Clair and Route B.
• Route 185, Franklin County, 7 a.m. to 2:30 p.m., one lane closed over the Meramec River. Flaggers will direct traffic through the work zone.
• Route FF, Franklin County, 8 a.m. to 2:30 p.m., one lane closed over the Little Meramec River. Flaggers will direct traffic through the work zone.

Wednesday, July 15

• I-44, St. Louis City, starting at 6 a.m. Monday, July 13, until 3 p.m. On Wednesday, July 15, the Vandeventer on-ramp to eastbound I-44.
• I-55, St. Louis City, 6 p.m. to 5 a.m., two northbound lanes from Weber Road to Broadway.
• I-270, St. Louis County, 8 p.m. to 5 a.m., up to three lanes closed northbound and southbound between I-64 and Ladue.
• Route 21, St. Louis County, 7 p.m. to 5 a.m., one northbound and southbound lane closed from Old Tesson to I-270.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one eastbound and westbound lane between Valcour and Baptist Church.
• Route 30, St. Louis County, 7 a.m. to 3 p.m., one lane closed from Rock Hill to Baptist Church.
• Route 61/67, St. Louis County, 6 a.m. to 3 p.m., one northbound and southbound lane from Meramec River to Lindbergh.
• Route 67, St. Louis County, 5 a.m. to 12 a.m., one lane closed from the Missouri River to just north of Route 94.
• Route 100, St. Louis County, 7:30 a.m. to 3 p.m., one eastbound lane closed from Knollhaven and Weidman Road.
• Route 100, St. Louis County, 8 p.m. to 5 a.m., two lanes closed eastbound between Barrett Station Road and Centerroyal Drive.
• Route 100, St. Louis County, 9 p.m. to 5 a.m., one lane closed at Route 141 Intersection.
• Route 267, St. Louis County, 6 a.m. to 3 p.m., one lane closed from Bayless to S. Lindbergh.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one eastbound and westbound lane closed between I-270 and North Office Parkway.
• Route 340, St. Louis County, 9 a.m. to 3 p.m., one right lane closed I-170 to 82nd
• Route 366, St. Louis County, 6 a.m. to 3 p.m., one lane closed from Laclede Station to Pardee.
• Route 370, St. Louis County, 6 a.m. to 6 p.m., one eastbound lane in St. Louis County is closed from Route 141 to the I-270 ramps.
• Route 370, St. Louis County, 7 p.m. to 5:30 a.m., one eastbound and westbound lane closed from overpass at Ferguson, Missouri Bottom Road, and Cowmire.
• I-64, St. Charles County, 8 p.m. to 5:30 a.m., one eastbound lane closed between I-70 to Prospect.
• I-64, St. Charles County, 8 p.m. to 9 a.m., one westbound lane closed between Prospect and I-70.
• I-70, St. Charles County, 9 p.m. to 5:30 a.m., two lanes closed westbound from 5th Street to Lake St. Louis Boulevard.
• 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, 9 p.m. to 5 a.m., all eastbound lanes closed at the I-64/Route 61 interchange.
• I-70, St. Charles County, 7 p.m. to 2 p.m., one westbound lane closed at David Hoekel Parkway.
• I-70, St. Charles County, 9 p.m. to 5 a.m., all lanes of I-70 westbound at the I-64/U.S. Route 61 interchange.
• I-70, St. Charles County, 9 p.m. to 5 a.m., loop ramp closed westbound of I-70.
• Route Z, St. Charles County, 10 p.m. to 5 a.m., full closure between I-70 ramps.
• I-55, Jefferson County, 8 p.m. to 6 a.m., one southbound right lane closed from Manley Quarry to Route A.
• I-55, Jefferson County, 7 p.m. to 5 a.m., the ramps between northbound I-55 and McNutt will be closed.
• I-55, Jefferson County, 7 a.m. to 2:30 p.m., one lane closed on I-55 over Rock Creek.
• Route PP, Jefferson County, 8 a.m. to 3 p.m., all lanes closed. Traffic will be detoured.
• Route 30, Franklin County, 5 p.m. to 7 a.m., one lane closed between St. Clair and Route B.
• Route 185, Franklin County, 7 a.m. to 2:30 p.m., one lane closed over the Meramec River. Flaggers will direct traffic through the work zone.
• Route FF, Franklin County, 8 a.m. to 2:30 p.m., one lane closed over the Little Meramec River. Flaggers will direct traffic through the work zone.

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