The Pūhoi to Warkworth road PPP project will extend the four-lane Northern Motorway (SH1) 18.5 km from the Johnstone’s Hill tunnels to just north of Warkworth.
It is another project under New Zealand's roads of national significance (RoNS) programme using a PPP model and follows on from the Transmission Gully PPP project.
It is the second PPP project for roading infrastructure in New Zealand.
The new RoNS is a key transport link connecting the north to the upper North Island freight triangle of Auckland, Waikato and Tauranga.