IL 255 – Alton Bypass

updated: 12/12/11

Project Location and Description
Illinois 255 is a highway constructed on new alignment that is proposed to extend from Interstate 270 near Edwardsville to US 67 in Godfrey. The highway is being constructed from south to north and is complete to Seminary Road

Under Construction
North of Seminary Road, there are currently several contracts underway from Seminary Road to just south of Delhi Illinois. Most of this work is building the embankment for the mainline roadway. A total of 6 new bridges are also currently under construction. The Wenzel Road Bridge is now complete and open to traffic.

The work on the flyover bridge carrying US 67 northbound traffic only onto the future IL 255 just north of the US 67/267 split is currently under construction

The new section of IL 255 from Seminary Road to Illinois Route 111 is scheduled to be open by Fall 2012.