Project introduction

The Longswamp section of the Waikato Expressway links the Mercer section (just south of the Hampton Downs Interchange) to the Rangiriri section to the south. This project involved the upgrading of 5.9km of SH1 to full expressway standard. It was completed in 2020.

  • Estimated project cost

    $92 million - construction only
  • Project type

    Road improvements
  • Project status


Key features

The Longswamp section:

  • connects the Mercer to Longswamp and Rangiriri sections of the expressway
  • improves connectivity from Auckland to Huntly and further south
  • improves safety, particularly for those using the Rangiriri and Te Kauwhata intersections.