There will be up to 20-minute delays on State Highway 4 on Monday and Tuesday with Waka Kotahi NZ Transport Agency carrying out road maintence work.
A stop/go traffic management system will be in place on the Parapara, 500m north of Fields Track.
NZTA systems manager Ross I'Anson said the work is to repair the pavement and road shoulder.
"We currently have barriers through the middle of the road to protect motorists from the drop off by the river and from the main emergency repair works," he said.
"Contractors will need to work on both sides of the concrete barrier to carry out the pavement and shoulder repairs so there won't be enough room for traffic to get past the crew and equipment, which is why we will have stop/stop traffic management in place."