Ferguson Township officials announced Friday that the detour on Whitehall Road between West College Avenue and Tadpole Road would be lifted by 5 p.m.
Drivers will be able to travel on Whitehall in both directions.
Work will continue at times at certain locations and under flagged traffic control, so drivers should be alert for isolated work zones and minor delays.
The state Department of Transportation also recently completed a Whitehall Road project, between West College and South Atherton Street. Both projects widened Whitehall and aimed to improve safety and congestion conditions.