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State highway projects

Our role in managing New Zealand's state highways includes working with the government and partners throughout the country to identify and respond to opportunities to improve safety, capacity and efficiency on our roads. One of our key goals is to support economic growth and productivity throughout New Zealand. Together, we develop projects based on thorough analysis and, where appropriate, extensive consultation to ensure they can be implemented cost effectively while delivering immediate and long-term gains to road users and the economy as a whole.

Currently active projects are listed below. For completed state highway projects, view the completed projects section in the navigation.

Te Atatu Interchange.

Updated: 30 October 2014

MAJOR DELAYS ON THE NORTHWESTERN MOTORWAY AND THE TE ATATU INTERCHANGE

10pm Friday 7 November to 5am Monday 10 November

Click here for more information

The Te Atatu Interchange is one of five projects currently underway that completes the Western Ring Route - one of the Government's seven roads of national significance to help promote economic growth.

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Fast facts

Upper Harbour Highway to Greville Road Northbound improvements.

Updated: 30 October 2014

GREVILLE ROAD INTERCHANGE - MAJOR WEEKEND CLOSURES

FIND OUT MORE HERE

The Upper Harbour Highway to Greville Road Northbound 3-laning is the first project to start construction as part of the Government's accelerated programme of works to improve transport infrastructure in Auckland. This project forms the first stage of the Northern Corridor accelerated package of works which focuses on improving links to and from the Northern Motorway.

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Fast facts

  • Project type:
    • Roads of national significance
  • Project contact:
The proposed roundabout at the intersection of SH2 and SH25.

Updated: 24 October 2014

To improve safety and efficiency at the intersection of SH2 and SH25... more

Fast facts

  • Project type:
    • Intersection improvement
  • Project contact:
Spring Creek Safety Improvements.

Nelson / Marlborough / Tasman

Spring Creek Safety Improvements

Updated: 16 October 2014

The NZ Transport Agency wants to improve the Spring Creek intersection and keep people safer at one of the South Island’s most dangerous intersections... more

Fast facts

SH20 will extend from Mt Roskill to meet with SH16 at the Great North Road Interchange..

Updated: 7 October 2014

Completing the Western Ring Route ‘road of national significance’ project provides the missing link to create a 48km alternative route around Auckland reducing dependency on SH1, particularly around the Auckland Central Business District (CBD) and the Auckland Harbour Bridge.

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Fast facts

SH1 Ngauranga to Aotea Quay..

Updated: 30 September 2014

The Ngauranga to Aotea Quay project (NtAQ) is part of the Wellington Northern Corridor Road of National Significance.

It is designed to improve traffic flows on the most congested part of Wellington's motorway network - the three kilometre section of State Highway 1 (SH1) between Ngauranga Gorge and the Aotea Quay on and off-ramps.

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Fast facts

SH16 Causeway Updgrade.

Updated: 29 September 2014

The causeway upgrade is a 4.5 kilometre-long project between the Great North Road Interchange and the Te Atatu interchange, and is a key component in completing the Western Ring Route road of national significance project. The existing six-lane causeway will be widened to provide additional lanes in both directions. The shoulder lanes for buses will be widened and extended, and there will be improvements to the pedestrian and cycleway beside the motorway. The causeway will also be raised to prevent flooding during extreme tidal conditions, and stormwater will be treated to a higher standard before it is discharged into the Waitemata Harbour.

The causeway runs besides the Motu Manawa - Pollen Island Marine Reserve. Design data has been gathered during the causeway trial, which took place during 2012, to ensure that the Causeway Upgrade will have as little impact on the Marine Reserve as possible.

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Fast facts

SH20A Motorway Upgrade to Auckland Airport.

Updated: 24 September 2014

SH20A is the primary route to and from Auckland Airport and forms a strategic link between the Western Ring Route (SH20 and SH16), the Airport Business District and the greater Auckland area... more

Fast facts

SH3/SH37 Waitomo Intersection.

Updated: 22 September 2014

Waitomo will have a new and much safer intersection in 2014/2015 as the NZ Transport Agency will upgrade the SH3/37 intersection. The turnoff to the Waitomo Caves, a popular destination for tourists, will be via a three-legged roundabout, relocated about 60 metres north of the existing SH3/37 intersection... more

Fast facts

Updated: 15 September 2014

Johns Road (SH1) between The Groynes and Sawyers Arms Road is part of the Christchurch’s Western Corridor. Traffic volumes on the whole Western Corridor are increasing and this is expected to continue into the future. To improve travel times, efficiency and safety on this section of highway, it will be upgraded to a 4-lane, median separated highway.

Project update

Construction of this 2-2.5 year project will start on 15 September 2014 with a blessing and sod turning. The winners of the contract for this work – Downer with start work on site from this date on.

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Fast facts

  • Project type:
    • Roads of national significance
  • Project contact:

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