Manukau Motorway Project

The Manukau Motorway Project was a 4.5 km motorway construction project designed to bypass the city between Manukau and the North Shore. The extension was designed to help relieve congestion on key roads around the city centre so further retail, business, apartment and entertainment developments could proceed.

The $210m extension project, which commenced in June 2006, was completed by January 2011. According to the NZ Transport Agency, the new motorway played a crucial role in making the 2011 Rugby World Cup a successful event, which the country hosted.

Overall result from our involvement

Significant savings to the project were achieved through re-design of a contamination remediation program required for a section of the motorway.

Services provided

  • Environmental controls design including erosion-sediment control, sediment pond flocculation and fish passage
  • Re-negotiation and amendment of a contamination approval and redesign of remediation works.
  • Initiation of a sustainability protocol for New Zealand Corporate Head Office. Guidance was taken from the Global Reporting Initiative which provides voluntary assessment procedures


Transit New Zealand and Manukau City Council




Auckland, New Zealand

Work delivered through

Leighton Contractors

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