ROYALTON – The Illinois Department of Transportation says a culvert replacement project will require Illinois 149 to be closed in both directions at the Sims Street intersection in Royalton starting weather permitting Friday at 6 p.m.

A posted detour will be in place to safely guide motorists around the closure. The work is expected to be complete by 6 a.m. Monday.

Drivers are urged to pay close attention to changing conditions and all detour signs prior to the work zone, obey the posted speed limits, refrain from using mobile devices and be alert for workers and equipment.