Chat with Andrew Gates from the Missouri Department of Transportation, David Wrone from the St. Louis County Department of Transportation, Kyle Nelson from the St. Louis Street Department and Amanda Brauer from the St. Charles County Roads and Traffic Unit at 1 p.m. Wednesdays at stltoday.com/chat . Here’s an edited excerpt from recent chats:

Graeme B: What happened on northbound Interstate 270 at Interstate 44? How long is the right-hand lane expected to be closed?

Gates: An oversized-load vehicle struck a girder on the northbound I-270 bridge over I-44 this summer. The lane approaching the northbound I-270 ramp to westbound I-44 had to be closed for safety. We planned to have westbound I-44 closed for part of the weekend to remove and replace the girder. We have an addition

See Full Page