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Case Study

SH1 Puhoi to Warkworth Motorway Project

The Ara Tūhono Pūhoi to Warkworth project will extend the four-lane Northern Motorway (SH1) 18.5km from the Johnstone's Hill Tunnels to just north of Warkworth. The meaning of Ara Tūhono is a connecting pathway. Ara meaning pathway/passage and Tūhono connecting or linking one part to another. The new motorway will be built to the west of the existing SH1 and bypass Warkworth on the western side. It will be a four-lane dual carriageway, separated by a central median with a safety barrier.