MoDOT to accelerate closure of southbound I-55 lanes in city

ST. LOUIS – Due to anticipated rain early next week, the Missouri Department of Transportation will accelerate the planned closure of two southbound Interstate 55 lanes between Interstate 44 and Potomac.

Crews will close two lanes on southbound I-55 starting Sunday, April 3, at 8 a.m. They will close the ramp from Lafayette to southbound I-55 at the same time.

The acceleration will help ensure that new lane stripes will be in place for the shift in southbound traffic and will mean that drivers will have shifted and narrowed lanes for the morning rush on Monday, April 4.  Please drive cautiously through this area as drivers adjust to the shifted and narrowed lanes.

This work is a part of a project to replace or renovate 13 interstate bridges in both directions between Interstate 44 in the city of St. Louis and Lindbergh. In addition, crews will replace barrier between the northbound and southbound lanes of I-55 and resurface the roadway. Bridge work will start on the north side of the corridor this year and barrier work will begin south of Virginia Avenue.

Two lanes of northbound traffic will be shifted to share the southbound lanes of the interstate by late April. When the northbound lanes shift, the ramps to 3200 Broadway (Exit 206B) and Arsenal (Exit 206C) will also be closed. Traffic will remain narrowed and shifted through the remainder of the year. When construction is completed on the northbound bridges, a similar lane shift will be in place in 2023 to work on the southbound bridge.

This project will include additional lane shifts and ramp closures as crews complete work along the corridor.  Information on those closures will be shared as they are determined.

Paving along this corridor is expected to start once the work on the bridges is complete.

Districts Involved
St. Louis