Contractors have begun work to widen a section of the state highway to make room for the installation of the barrier.
The flexible median barrier was an effective way to make the state highway network safer and minimise the impacts of crashes, Partridge said.
“We know the construction process will be disruptive and we thank people for their patience. We also know these median barriers and other changes will have immediate safety benefits, while also maintaining efficient travel between Whanganui and Bulls,” he said.
The locations of the four stretches of flexible median barrier, totalling 2.9km in length, are south of Dalvey Rd (0.7km), Duddings Lake to Union Line (1.2km), Pukepapa Rd to Brightwell Rd (0.6km) and Brightwell Rd to Tennents Rd (0.3km).
The locations for three more stretches of flexible median barrier will be finalised soon.