ST. LOUIS - Motorists should be aware of two upcoming interstate closures over the next week.

Drivers who use southbound Interstate 55 should be aware that southbound I-55 will be closed overnight this Friday and next Friday, weather permitting.

Crews will close all lanes of southbound I-55 at Germania this Friday, August 16, starting at 11 p.m. to place concrete for the bridge deck over the River Des Peres. Drivers can exit at Germania (Exit 202B), turn right on Germania, turn left onto Morganford, take an immediate left onto Carondelet and get back onto southbound I-55. The lanes will reopen Saturday, August 17 by 8 a.m.

Secondly, motorists traveling near Interstate 270 and Interstate 64 should be aware of a ramp closure overnight August 20.

Weather permitting, crews will close the ramp between eastbound I-64 and northbound I-270 Tuesday, August 20, at 10 p.m. During the closure, crews will be shifting the ramp to the left to start work on the next portion of the project.

The ramp reopens Wednesday, August 21 at 5 a.m.

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-44, St. Louis City, westbound exit to 12th/Gravois closed through the end of August.
• I-55, St. Louis City, one northbound lane closed from Lindbergh to north of Bayless through the end of 2024.
• I-55, St. Louis City, two northbound lanes closed from north of Bayless to Virginia through the end of 2024.
• I-55, St. Louis City, the ramp from northbound to Loughborough and the Loughborough on-ramp to northbound I-55 closed will be closed through 2024.
• I-55, St. Louis City, the ramp from Lafayette/Truman to southbound I-55 is closed through 2024.
• I-55, St. Louis City, the ramp from Germania to northbound will be closed through 2024.
• I-55, St. Louis City, one northbound lane closed between Lindbergh and Reavis Barracks Road through 2024.
• I-55, St. Louis City, two northbound lanes closed between Reavis Barracks Rd. and Virginia through 2024.
• I-55, St. Louis City, one northbound lane closed from I-44 to north of Bates through 2024.
• I-55, St. Louis City, two southbound lanes closed from north of Bates to north of Weber and one southbound lane closed north of Weber to Reavis Barracks through 2024.
• I-55, St. Louis City, one southbound lane closed between I-44 and Gasconade through 2025.
• I-55, St. Louis City, two southbound lanes closed from Reavis Barracks to north of South Lindbergh through 2024.
• I-270, St. Louis County, Riverview Dr. entrance ramp to eastbound I-270 closed and eastbound I-270 exit ramp to Riverview closed.
• I-270, St. Louis County, southbound Riverview Dr. under I-270 closed through 2024.
• I-270, St. Louis County, various northbound and southbound lanes closed between I-64 and Olive through late 2025.
• Route 67, St. Louis County, northbound lanes at Route 180 closed through December 2024. Traffic has been switched to southbound side of Route 67, with one lane in each direction.
• Route AB, St. Louis County, one eastbound and westbound lane closed under I-270 through 2025.
• Route N, St. Louis County, one southbound lane closed from Thoroughman Avenue to Frost Avenue through 2024.
• Route N, St. Louis County, one northbound lane closed from Thoroughman to Robert Avenue.
• Route N, St. Louis County, one southbound lane closed from Jean Dr. to Walnut Grove Elementary.
• Route N, St. Louis County, one northbound lane closed from Wadsworth Dr. to Taille De Noyer Dr.
• Route N, St. Louis County, one southbound lane closed at Emerling Drive until late September 2024.
• I-70, St. Charles County, one westbound/eastbound lane closed at Belleau Creek.
• I-70, St. Charles County, lane shifts on eastbound I-70 at Spencer Creek through Aug. 2.
• I-70, St. Charles County, one lane closed on the ramp from T.R. Hughes to eastbound through late September 2024.
• I-70, St. Charles County, Fairgrounds/Convention Center Boulevard on ramp to westbound I-70 closed until mid-November. Traffic is diverted to Route 94 to access westbound I-70.
• Route 79, St. Charles County, all northbound and southbound lanes closed over I-70.
• Route 79, St. Charles County, one lane closed from North Service Rd to Norfolk Railroad bridge; and one southbound lane closed over Norfolk Railroad bridge.
• I-55, Jefferson County, closed at the intersection of I-67 and from I-67 to Herky Horine Rd.
• I-55, Jefferson County, three left turn lanes closed at McNutt under the interstate through mid-October 2024. Traffic will move to the outside lanes. Drivers will be able to make a left turn onto the interstate ramps.
• Route 21, Jefferson County, one lane closed southbound from Meramec Heights to Shady Valley.
• Route 21, Jefferson County, one northbound lane closed from Schenk Road to Route 141.
• Route 21, Jefferson County, old Route 21 (Schenk Road) exit closed over new Route 21.
• Route 67, Jefferson County, one lane closed southbound at I-55 through 2024.
• Route CC, Franklin County, one lane closed over Little Creek.
• Route Y, Franklin County, Cedar Creek bridge is closed until November 2024.

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

Thursday, August 15

• I-55, St. Louis City, 8 p.m. to 5 a.m., the ramp from northbound to Gravois will be closed.
• I-64, St. Louis County, 9 p.m. to 5 a.m., one northbound and southbound lane closed on Hanley over the interstate.
• I-70, St. Louis County, 9 p.m. to 5 p.m., one eastbound and westbound lane closed from Route 180 to Springdale.
• Route 61/67, St. Louis County, 8 a.m. to 3 p.m., one northbound lane closed from Ladue to Scheutz.
• Route 61/67, St. Louis County, 8 a.m. to 3 p.m., one southbound lane closed from Chaminade to German.
• Route 100, St. Louis County, 8 p.m. to 6 a.m., one westbound and eastbound lane closed between Lindbergh Boulevard (Route 61/67) to I-270.
• Route 180, St. Louis County, 5 a.m. to 10 a.m., one lane closed under Route 67.
• Route 340, St. Louis County, 8 p.m. to 6 a.m., one eastbound and westbound lane closed from River Valley to I-270.
• Route 364, St. Louis County, 9 a.m. to 3 p.m., one lane closed westbound at the Missouri River.
• Route 367, St. Louis County, 7 a.m. to 3 p.m., one left lane closed southbound between Dunn Road and I-270.
• Route 364, St. Charles County, 9 p.m. to 3 p.m., one lane closed eastbound at the Missouri River.
• I-55, Jefferson County, 7 p.m. to 5 a.m., one lane closed northbound between Route 67 and Manley Quarry Bridge.
• I-55, Jefferson County, 8 p.m. to 6 a.m., one lane closed southbound between Manley Quarry Bridge and Route 67.
• Route P, Jefferson County, 7 a.m. to 5 p.m., one lane closed from Route 110 to Route A.
• I-44, Franklin County, 7 a.m. to 3 p.m., one north outer road lane closed between Route 185 and Route 47. Flaggers will direct traffic through the work zone.
• Route MM, Franklin County, 7 a.m. to 3 p.m., one lane closed between Route T and Route 110. Flaggers will direct traffic through the work zone.

Friday, August 16

• I-55, St. Louis City, 11 p.m. to 7 a.m., all lanes of southbound I-55 will be closed.
• I-55, St. Louis County, 8 p.m. to 5 a.m., the ramp from Weber to northbound will be closed.
• I-64, St. Louis County, 9 p.m. to 5 a.m., one northbound and southbound lane closed on Hanley over the interstate.
• I-70, St. Louis County, 9 p.m. to 5 p.m., one eastbound and westbound lane closed from Route 180 to Springdale.
• Route 61/67, St. Louis County, 8 a.m. to 3 p.m., one northbound lane closed from Ladue to Scheutz.
• Route 61/67, St. Louis County, 8 a.m. to 3 p.m., one southbound lane closed from Chaminade to German.
• Route 100, St. Louis County, 8 p.m. to 6 a.m., one westbound and eastbound lane closed between Lindbergh Boulevard (Route 61/67) to I-270.
• Route 180, St. Louis County, 5 a.m. to 10 a.m., one lane closed under Route 67.
• Route 340, St. Louis County, 8 p.m. to 6 a.m., one eastbound and westbound lane closed from River Valley to I-270.
• Route 367, St. Louis County, 7 a.m. to 3 p.m., one left lane closed southbound between Dunn Road and I-270.
• Route N, St. Louis County, starting at 5 a.m. and continuing through September, one lane closed southbound before Emerling Drive.
• I-55, Jefferson County, 7 p.m. to 5 a.m., one lane closed northbound between Route 67 and Manley Quarry Bridge.
• I-55, Jefferson County, 8 p.m. to 6 a.m., one lane closed southbound between Manley Quarry Bridge and Route 67.
• Route P, Jefferson County, 7 a.m. to 5 p.m., one lane closed from Route 110 to Route A.
• Route MM, Franklin County, 7 a.m. to 3 p.m., one lane closed between Route T and Route 110. Flaggers will direct traffic through the work zone.

Saturday, August 17

• Route 100, St. Louis City, 10 p.m. to 1:30 a.m. all lanes closed between 18th Street and Broadway for the Moonlight Bide Ride.

Sunday, August 18

• I-55, Jefferson County, 2 a.m. to 3 a.m., all lanes closed in both directions between Route T and Route M for up to 15 minutes to remove utility lines over the interstate.

Monday, August 19

• I-55, St. Louis City, 9 p.m. to 5 a.m., the left lane of southbound will be closed between Park and Lafayette.
• I-55, St. Louis County, 8 p.m. to 5 a.m., one right lane closed northbound at Weber will be closed.
• I-64, St. Louis County, 9 p.m. to 5 a.m., one northbound turn lane closed on Hanley over the interstate.
• I-70, St. Louis County, 9 p.m. to 5 p.m., one eastbound and westbound lane closed from Route 180 to Springdale.
• Route 61/67, St. Louis County, 5 p.m. to 2 a.m., one lane closed southbound between Scheutz and Conway.
• Route 61/67, St. Louis County, 8 a.m. to 3 p.m., one southbound lane closed from Chaminade to German.
• Route 100, St. Louis County, 8 p.m. to 6 a.m., one westbound and eastbound lane closed between Lindbergh Boulevard (Route 61/67) to I-270.
• Route 180, St. Louis County, 5 a.m. to 10 a.m., one lane closed under Route 67.
• Route 340, St. Louis County, 8 p.m. to 6 a.m., one eastbound and westbound lane closed from River Valley to I-270.
• Route 364, St. Louis County, 9 a.m. to 3 p.m., one lane closed westbound at the Missouri River.
• Route 364, St. Charles County, 9 p.m. to 3 p.m., one lane closed eastbound at the Missouri River.
• I-55, Jefferson County, 7 p.m. to 5 a.m., one lane closed northbound between Route 67 and Manley Quarry Bridge.
• I-55, Jefferson County, 8 p.m. to 6 a.m., one lane closed southbound between Manley Quarry Bridge and Route 67.
• I-55, Jefferson County, 7 p.m. to 5 a.m., one lane closed northbound at Route Z.
• I-55, Jefferson County, 8 p.m. to 6 a.m., one lane closed southbound at Route Z.
• Route P, Jefferson County, 7 a.m. to 5 p.m., one lane closed from Route 110 to Route A.
• I-44, Franklin County, 7 a.m. to 3 p.m., one north outer road lane closed between Route 185 and Route 47. Flaggers will direct traffic through the work zone.
• Route MM, Franklin County, 7 a.m. to 3 p.m., one lane closed between Route T and Route 110. Flaggers will direct traffic through the work zone.

Tuesday, August 20

• I-55, St. Louis City, 8 p.m. to 5 a.m., the northbound exit to westbound I-44 will be closed.
• I-64, St. Louis County, 9 p.m. to 5 a.m., one northbound and southbound lane closed on Big Bend over the interstate.
• I-70, St. Louis County, 9 p.m. to 5 p.m., one eastbound and westbound lane closed from Route 180 to Springdale.
• I-270, St. Louis County, 10 p.m. to 5 a.m., the ramp from eastbound I-64 to northbound will be closed.
• Route 61/67, St. Louis County, 5 p.m. to 2 a.m., one lane closed southbound between Scheutz and Conway.
• Route 61/67, St. Louis County, 8 a.m. to 3 p.m., one southbound lane closed from Chaminade to German.
• Route 180, St. Louis County, 5 a.m. to 10 a.m., one lane closed under Route 67.
• Route 340, St. Louis County, 8 p.m. to 6 a.m., one eastbound and westbound lane closed from River Valley to I-270.
• Route 364, St. Louis County, 9 a.m. to 3 p.m., one lane closed westbound at the Missouri River.
• Route 364, St. Charles County, 9 p.m. to 3 p.m., one lane closed eastbound at the Missouri River.
• I-55, Jefferson County, 7 p.m. to 5 a.m., one lane closed northbound between Route 67 and Manley Quarry Bridge.
• I-55, Jefferson County, 8 p.m. to 6 a.m., one lane closed southbound between Manley Quarry Bridge and Route 67.
• I-55, Jefferson County, 7 p.m. to 5 a.m., one lane closed northbound at Route Z.
• I-55, Jefferson County, 8 p.m. to 6 a.m., one lane closed southbound at Route Z.
• Route P, Jefferson County, 7 a.m. to 5 p.m., one lane closed from Route 110 to Route A.
• I-44, Franklin County, 7 a.m. to 3 p.m., one north outer road lane closed between Route 185 and Route 47. Flaggers will direct traffic through the work zone.
• Route MM, Franklin County, 7 a.m. to 3 p.m., one lane closed between Route T and Route 110. Flaggers will direct traffic through the work zone.

Wednesday, August 21

• I-55, St. Louis City, 8 p.m. to 5 a.m., the northbound exit to westbound I-44 will be closed.
• I-64, St. Louis County, 9 p.m. to 5 a.m., one southbound lane closed on Big Bend over the interstate.
• I-70, St. Louis County, 9 p.m. to 5 p.m., one eastbound and westbound lane closed from Route 180 to Springdale.
• Route 61/67, St. Louis County, 5 p.m. to 2 a.m., one lane closed southbound between Scheutz and Conway.
• Route 61/67, St. Louis County, 8 a.m. to 3 p.m., one southbound lane closed from Chaminade to German.
• Route 180, St. Louis County, 5 a.m. to 10 a.m., one lane closed under Route 67.
• Route 340, St. Louis County, 8 p.m. to 6 a.m., one eastbound and westbound lane closed from River Valley to I-270.
• Route 364, St. Louis County, 9 a.m. to 3 p.m., one lane closed westbound at the Missouri River.
• Route 364, St. Charles County, 9 p.m. to 3 p.m., one lane closed eastbound at the Missouri River.
• I-55, Jefferson County, 7 p.m. to 5 a.m., one lane closed northbound between Route 67 and Manley Quarry Bridge.
• I-55, Jefferson County, 8 p.m. to 6 a.m., one lane closed southbound between Manley Quarry Bridge and Route 67.
• I-55, Jefferson County, 7 p.m. to 5 a.m., one lane closed northbound at Route Z.
• I-55, Jefferson County, 8 p.m. to 6 a.m., one lane closed southbound at Route Z.
• I-55, Jefferson County, 9 p.m. to 5 a.m., the ramp from southbound to southbound Route 67 will be closed.
• Route P, Jefferson County, 7 a.m. to 5 p.m., one lane closed from Route 110 to Route A.
• I-44, Franklin County, 7 a.m. to 3 p.m., one north outer road lane closed between Route 185 and Route 47. Flaggers will direct traffic through the work zone.
• Route MM, Franklin County, 7 a.m. to 3 p.m., one lane closed between Route T and Route 110. Flaggers will direct traffic through the work zone.

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