Drivers heading through State Highway 1 between Mangaweka and Taihape can expect delays of up to 20 minutes for the next two weeks.
Round-the-clock stop/go traffic management will come into effect from Thursday, February 8, as work continues on a stretch of State Highway 1 at Utiku.
Contractors are building back a section of road by excavating up to 4m and replacing it with aggregate and geogrid stabilisation matting.
The work is expected to take until February 25.
So far contractors have been able to maintain two-lane access; however, at the narrower sections of the road, this will need to be reduced to a single lane to allow for the work.