Traffic Impact During Spring Turnaround

Last Updated 2/26/2026




Neighbors: Please be aware of increased traffic on 143 with vehicles entering and exiting the marked construction gate east of the Phillips 66 gas station in Wood River. Additional workers will be present now through mid-April for the Spring Turnaround. We appreciate your patience and awareness during shift changes.


FROM I.D.O.T.FOR IMMEDIATE RELEASE: February 26, 2026 CONTACT:Joseph Monroe 618.346.3252  
Madison County: Traffic Signal Changes – IL 143
March 2 – April 18

WOOD RIVER – The Illinois Department of Transportation today announced traffic impacts near the Pillips 66 refinery’s north entrance along IL 143. Beginning March 2, local law enforcement will change the traffic signal located at IL 143 and the Schnuck’s entrance to red flash between the hours of 4:00 a.m. and 8:00 a.m. as well as 4:00 p.m. and 8:00 p.m., daily through April 18. These adjustments are necessary to facilitate safe, efficient traffic flow during shift change at the refinery during this heavy construction period. Several hundred vehicles will be entering and exiting the refinery’s north access point approximately 0.5 miles west of IL 255 during the refenced periods of signal adjustment.Motorists can expect delays and should allow extra time for trips through this area. Drivers are urged to pay close attention to changed conditions, traffic signals, and signs in the work zones, obey the posted speed limits, refrain from using mobile devices, respect law enforcement directions, as well as be alert for workers and equipment.
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