Transmission Gully is a key component of the 110km Wellington Northern Corridor Road of National Significance, which when fully completed will provide a safer, more reliable and more efficient highway connection from Levin to Wellington, connecting the city to the growing economic centres of Kapiti and the Manawatu and subsequently the wider North Island.

Importantly for the Wellington region, in the event of a major earthquake, it will be quicker to reinstate the Transmission Gully motorway than the existing State Highway 1.

The Transmission Gully motorway will also reduce traffic on the existing State Highway 1 which will provide a safer environment for communities along this route.

The PPP model also encourages the most advanced technology and innovative approaches from overseas to be brought to the project. 

This road is crucial – not just locally – but as a regional roading network that will provide greater route security and ease congestion for everyone in the Wellington region.

It also helps secure the future economic vitality of the Wellington region by providing a sustainable transport infrastructure that will support economic growth for many decades.

The Wellington Gateway Partnership consists of:


  •  HEB Construction Ltd

  •  Leighton Contractors Pty Ltd

  •  Accident Compensation Corporation (ACC)

  •  InfraRed Infrastructure General Partner Ltd

  •  Bank of Tokyo-Mitsubishi UFJ, Ltd (BTMU)