Part of westbound Interstate 55/70 will be closed this weekend, starting at 9 p.m. Friday, so work crews can paint bridges.
The Illinois Department of Transportation is closing the interstate where it passes under Interstate 255. Westbound interstate traffic will exit onto southbound Interstate 255 for a posted detour to westbound Interstate 64 to return to westbound Interstate 55/70.
Another posted detour will reroute Illinois 157 traffic.
The highways should open by 5 a.m. Monday.