The detour will involve the section of Route 611 that crosses under Route 22 immediately west of the toll bridge, and goes into effect Monday at 9 a.m.
While the road is closed, the DRJTBC will set up cranes and install steel support beams. The commission hopes to have the road reopened by 5 p.m. Wednesday. The commission had closed this section of the roadway earlier this month.
The commission will post detour signs around Route 22 via Third Street in Easton. The detour is subject to change to due to weather, traffic and emergencies.
The detour is part a $30 million project to rehabilitate the bridge between Easton and Phillipsburg, as well as some of the surrounding exits and overpasses.