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Project introduction

In readiness for the Transmission Gully motorway, the NZ Transport Agency is investigating ways to improve the southbound connection from Transmission Gully onto SH1 at Linden.

  • Estimated project dates

    Apr 2019–Dec 2020
  • Project type

    Road improvements
  • Project status

    Design

Project overview

Transmission Gully is scheduled for completion in 2020 and once open, will change the way our customers travel through the Wellington region.

In readiness for Transmission Gully, we’ll look to make some changes to key connections on the SH1 network.

We want to ensure that the new motorway provides the sough-after benefits and supports a safer and more efficient roading network.

Background information

We’ve identified that extending the third southbound lane from Transmission Gully on SH1 at Linden by approximately 600m will help improve the flow of southbound traffic, particularly during peak travel times.

To do this work, we need to assess any effects on neighbouring residents, the local community, and commuters and motorists and minimise and mitigate them as best we can.

Phase Estimated dates
Design/Pre-lodgement phase (including assessment of effects) May–June 2019
Pre-construction design phase (including site access work) May–June 2019
Consenting phase June–September 2019
Construction phase TBC

This proposed work is separate to the construction of the Transmission Gully motorway and will not delay the completion of the Transmission Gully PPP motorway project in 2020: www.tg.co.nz

We have broken this project down into four phases.

Phases

  • Design/Pre-lodgement phase (including assessment of effects) – May–June 2019

    Design/Pre-lodgement phase is where we’ll identify the effects on local residents and determine who may be directly impacted.

    The NZ Transport Agency and the Wellington City Council (WCC) will work with neighbouring land owners to fully understand effects and design appropriate mitigation measures with the residents, environment and community in mind.

    We will also work with the Greater Wellington Regional Council (GWRC) to explore ways to integrate a more efficient roading network and maintaining the current drainage standards and urban design requirements.

    This phase of the project runs from May–June 2019.

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  • Pre-construction phase (including site access work) – May–June 2019

    The existing steep slopes and narrow accesses present some challenges for construction that will mean some changes to the local landscape.

    This phase will identify those changes, as well as how we will restore to the same or better standards before construction is completed. The Transmission Gully motorway merge lighting will be extended southwards at the same time.

    We will work with nearby schools and community facilities to understand how they might be affected and ensure that we design and develop ways to minimise and mitigate any disruption.

    We want to engage the community to ensure we identify opportunities to deliver positive outcomes in the area.

    This phase of the project runs from May–June 2019.

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  • Consenting phase – June–September 2019

    Before physical construction can commence, we are required to gain consents from the Greater Wellington Regional Council and the Wellington City Council.

    We will present our design to local residents, the community, iwi and other key stakeholders as part of the planning process.

    The information gathered from the consultation will be provided to the WCC and the GWRC for their consideration and decision.

    This phase of the project runs from June–September 2019.

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  • Construction phase – TBC

    The construction phase requires the NZ Transport Agency to gain the necessary consents to carry out this work.

    If consent is gained, we will look to complete construction within the 12 months following consenting.

    This proposed work is separate to the construction of the Transmission Gully motorway and will not delay the completion of the Transmission Gully PPP motorway project in 2020.

    www.tg.co.nz

    Close

Project area

SH1 Transmission Gully lane extension at Linden, Tawa.

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