News & Media Releases

Investigations start on Transmission Gully project

News Update – Spring 2007

Investigations and preliminary design work on the Transmission Gully project have started in earnest on all five contracts awarded for work on this first stage.

The proposed 27-kilometre Transmission Gully route will run from MacKay's Crossing, just north of Paekakariki, crossing State Highway 58 (SH58) to the southern reconnection to State Highway 1 (SH1) near Linden.

Principal Project Manager Rob Whight said the contracts covered road safety audit, traffic modelling, preliminary geotechnical assessment, cost, risk and value engineering assessment and scheme assessment.

“The Transmission Gully project calls for much detailed and thorough work to be carried out to ensure a robust process is undertaken to establish cost and design options for the project. 

“The contractors involved on the different contracts are all well-experienced in their fields and provide the best mix of technical and management skills for the Transmission Gully project.”

Mr Whight stressed that the size and complexity of the investigations and planning required for the project necessitated for “no stone to be left unturned” in the work.

“ We are happy with the current progress being made on the project and confident that it will enable decisions to be made about the most appropriate engineering solutions, the best overall transportation proposal, and ensure value-for-money is realised for the proposed new route.

“We are confident that the integrated programme implemented by Transit for the investigations and preliminary design work will achieve the required objectives,” he said.

Stage 1 Contracts and Contractors

  • Road Safety Audit – MWH New Zealand
  • Traffic Modelling - Sinclair Knight Merz (SKM)
  • Preliminary Geotechnical Assessment - Opus International   Consultants
  • Cost, Risk and Value Engineering Assessment - A second team from Opus International Consultants
  • Scheme Assessment - Consortia led by Opus International Consultants and including GHD, Holmes Consulting Group and Boffa Miskell.

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