Murphysboro – The Illinois Department of Transportation is reporting the opening of the Big Muddy Bridge in Murphysboro tonight. Starting at 6 tonight, the bridge will be open to all westbound traffic on Illinois 13 heading to Murphysboro. Delays are expected while traffic is being directed onto the new structure. Eastbound traffic will remain in its current configuration. Lane closures will remain in each direction while resurfacing and other work is done to complete the project.