A new road layout outside RNZAF Base Ōhakea will open this week.
Two temporary roads have been built around the construction site of a new double-laned roundabout at the intersection of Pukenui Rd and State Highway 3.
A temporary roundabout will be installed on the state highway overnight on Tuesday, so motorists can turn safely into the new Pukenui temporary road.
While the work is carried out, there will be a speed limit of 30km/h.
The western temporary road, which will be used mostly by Defence Force staff to enter and exit the base, is expected to open on Wednesday. The old Pukenui Rd intersection will then be closed.