Project introduction

This project on Auckland’s Northwestern motorway (SH16) is raising the Te Atatu Rd overbridge, upgrading onramps & exits, widening a section of the motorway, extending bus shoulder lanes and enhancing cycling & pedestrian facilities. It is a key component in completing the Western Ring Route.

  • Estimated project dates

    Feb 2014–Mar 2016
  • Estimated project cost

    $20 - $100 million
  • Project type

    Road improvements, Road maintenance
  • Project status


Project updates

Works continue at Te Atatu interchange
Media release,
Expect delays at Te Atatu this weekend
Media release,
Labour Weekend 2015 congestion hot spots
Media release, (PDF)
Expect delays at Te Atatu next weekend
Media release,


This project is a key part of the Western Ring Route which once complete, will provide an alternative to SH1, central Auckland and the Auckland Harbour Bridge.  It involves widening a section of the Northwestern Motorway and extending bus shoulder lanes and improving walking and cycling facilities.  Upgrades will be made to all five motorway onramps and exits along with widening and raising the Te Atatu Road overbridge.



  • Increasing capacity by widening a section of the Nothwestern Motorway (SH16) between Te Atatu and Lincoln Roads from two to three lanes in each direction
  • Improving safety by rebuilding motorway onramps and exits
  • Widening the Te Atatu overbridge and providing an additional lane in each direction
  • Raising the Te Atatu overbridge and increasing clearance underneath the bridge
  • Extending bus shoulder lanes to SH16 for quicker bus trips during peak periods
  • Improved pedestrian and cyclist access throughout the interchange and on the Northwestern cycleway
  • Replacement of existing Jack Colvin Park spectator seating
  • Stormwater treatment installation

Community engagement

Meeting notes and papers from the Community Liaison Group, a regular forum where information about the project is shared with the community and any concerns or issues discussed.

Read the latest community engagement meeting report(external link)