Project introduction

The Longswamp section of the Waikato Expressway links the already completed Mercer section (just south of the Hampton Downs Interchange) to the Rangiriri section to the south. This project involves the upgrading of 5.9km of SH1 to full expressway standard.

  • Estimated project cost

    $92 million - construction only
  • Project type

    Road improvements
  • Project status



When complete the Waikato Expressway will be the key strategic transport corridor for the Waikato region, connecting Auckland to the agricultural and business centres of Waikato and Bay of Plenty. The expressway will improve economic growth and productivity through more efficient movement of people and freight.


  • reducing travel times between Auckland and Cambridge by 35 minutes

  • reducing significantly the number of fatal and serious injury crashes

  • reducing fuel costs

  • reducing traffic congestion within smaller communities like Huntly, Ngaruawahia and Cambridge

  • increasing the highway's capacity and passing opportunities.

Key features

The Waikato Expressway will be 102km long, running from the Bombay Hills to south of Cambridge. It will provide for two lanes of traffic in each direction divided by a central median barrier. Local roads and interchanges will generally be serviced by bridges and underpasses.

The Longswamp section will:

  • connect the already completed Mercer to Longswamp and Ohinewai sections of the expressway
  • improve connectivity from Auckland to Huntly and further south
  • improve safety, particularly for those using the Rangiriri and Te Kauwhata intersections.

Designation map

  • View map

    For a more detailed map showing the designated route click through one of the individual map boxes on the image below:

    Longswamp map overview Map 1 of 4 Map 2 of 4 Map 3 of 4 Map 4 of 4