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Project introduction

A project to improve safety and efficiency for road users on the stretch of State Highway 16 between Brigham Creek and Waimauku in Auckland.

  • Estimated project cost

    $53 million
  • Project type

    Safety improvements
  • Project status


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To make the section of State Highway 16 between Brigham Creek and Waimauku and its roadside more forgiving of human error, reducing the risk of serious or fatal injuries when cars leave the road or cross the centre line. 



The project will improve safety within the project extents, helping to reduce serious crashes resulting in death and serious injuries. The project will also improve efficiency, ahead of other major infrastructure build projects being progressed in the longer term. 

About the project

Improvements to the state highway under consideration include providing wider centre median strips  and shoulders, installing median and/or side barriers, rumble strips, improved road markings and signage, and intersection upgrades such as the Coatesville-Riverhead Highway intersection. Realigning curves and adding turning lanes are other options which will also be considered.

The Safe Roads Alliance is starting investigations to urgently reduce the number of deaths and serious injuries resulting from crashes within the project extents. The project will introduce short-to medium-term solutions that help with safety and efficiency, ahead of other longer-term major infrastructure projects to be delivered through the Transport for Future Urban Growth (external link) programme. It will also coordinate with projects in the Kumeu, Huapai and Waimauku urban centres along SH16 to ensure consistency in standards and treatment.


What's happening, and when

July - December 2017
Consultation with landowners and the community to present the proposed design and double check we’ve got it right.

August - September 2017
Community open days.

October – November 2017
Seek final approval so we can finalise the design and start the work.

Late 2018
Construction starts.

Project completed.