Waka Kotahi NZTA maintenance and operations manager Rob Service said work would also resume in January to progress slip repairs on the Parapara road.
“We’ll begin ground investigations on January 10 at the site north of Hawken Road, where the road is down to one lane due to a recent washout. This testing will help us to complete a design for a permanent solution there.
“At the end of January, construction of a retaining wall will begin at the site of the underslip near Burrell Road. Local company Loaders Whanganui will carry out this work, and it is expected to be completed by the end of May.”
Further north, work continues on the Auraki Stream road retreat project, which was due for completion in June 2023.
“SH4 is a major trade corridor as well as a scenic tourist route, and we are working hard to keep the road safe and resilient,” Service said.
“Motorists are asked to be patient and abide by the traffic management in place. The road work crews would also appreciate a friendly wave.”