The project, developed under a public-private partnership (PPP), involves the four-lane extension of the Northern Motorway (also called SH1) over 18.5 kilometers from the Johnstone’s Hill tunnels to the north of Warkworth in New Zealand.
It is the first section of the Ara Tūhono-Puhoi to Wellsford section, a strategic route for the
country’s transport network and key to joining the northern zone of the triangle formed by the
cities of Auckland, Waikato and Tauranga. The project is part of a state program to improve
passenger and goods transport between some of the main urban centers in New Zealand.
The Pūhoi-Warkworth highway is expected to be open for traffic by 2022.