State Highway 1 near Warkworth will be closed tonight to remove wreckage of a large truck that crashed earlier today.
The truck and trailer unit crashed into a ditch, south of Pohuehue, a police spokesman said.
Diversions would be in place while the highway was closed for about two hours, until 9.30pm.
The vehicle went down a bank and into a ditch, the spokesman said.
It crashed far enough off the road that the road did not need to be closed during peak hours.
The driver was taken to hospital, but suffered only minor injuries, the spokesman said.