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About the Transmission Gully Proposal

The applications are for the construction, operation and maintenance of the Transmisison Gully Proposal, a proposed 27km inland alternative to State Highway 1 that will run between Linden (Wellington City) and MacKays Crossing (Kapiti Coast District).

Map of the proposed inland alternative (pdf, 613kb)


The Transmission Gully Proposal consists of four components:

  • The Main Alignment involves the construction, operation and maintenance of a 27 km section of state highway, formed to an expressway standard, from Linden to MacKays Crossing.  The NZTA is the applicant for the Main Alignment.
  • The Kenepuru Link Road involves the construction, operation and maintenance of a limited access state highway connecting the Main Alignment to western Porirua between Kenepuru Drive and the Kenepuru interchange.  The NZTA is the applicant for the Kenepuru Link Road. 
  • The Porirua Link Roads involve the construction, operation and maintenance of two local roads (the Whitby Link Road and the Waitangirua Link Road) to connect the Main Alignment to the existing eastern Porirua road network.  The Porirua City Council is the applicant for the Porirua Link Roads.
  • The relocation of 24 transmission towers, between the Pauatahanui sub-station at State Highway 58 and MacKays Crossing, to accommodate the construction and operation of the Main Alignment.  Transpower New Zealand Ltd is the applicant for the transmission line relocation. 

In total, the matters lodged for the consenting and designation of the Transmission Gully Proposal for each of the applicants are:

  • NZTA – six Notices of Requirement and 16 Resource Consents
  • Porirua City Council – two Notices of Requirement and four Resource Consents;
  • Transpower – two Resource Consents.

These matters lodged are for Stage Two of the Transmission Gully Proposal.  NZTA made a plan change request relating to the Wellington Regional Council Regional Freshwater Plan, as Stage One of the Transmission Gully Proposal. The final decision report for Stage One was released on 10 October 2011.

The EPA prepared an information sheet. Please note that the following dates in the information sheet have been updated:

  • The Pre-hearing conference was held on Thursday 10 November 2011
  • Applicants’ evidence in chief was due by 5.00pm Friday 18 November 2011
  • Submitter’s expert evidence must be submitted by 5.00pm Wednesday 21 December 2011

Download the information sheet (pdf, 956kb)


The New Zealand Transport Authority also prepared a non-technical summary of the Transmission Gully Proposal.

NZTA non-technical summary of the Transmission Gully Proposal
     (pdf, 777 kb)

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