SH1 Belfast to Pegasus motorway and Woodend Bypass

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Project introduction

This Road of National Significance project will create an efficient and reliable motorway connection between Belfast and Pegasus, while supporting economic growth and reducing community severance through Woodend.

  • Estimated project dates

    Jul 2024–Dec 2030
  • Project type

    Road improvements
  • Project status

    Design

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About the project

SH1 from Belfast to Pegasus is the key freight route to the north of Christchurch, and provides critical access to Christchurch City, the primary service centre for the South Island, with Christchurch International Airport, Lyttelton Port and major health, education, commercial and industrial services.

Woodend, Pegasus and Ravenswood are experiencing significant growth, far above what was anticipated when the project was designated in 2015. This growth has led to high traffic volumes sooner than expected and this is leading to delays and safety concerns for people and children crossing between developments at the Pegasus roundabout.

The SH1 Belfast to Pegasus Motorway and Woodend Bypass includes a 10km extension on SH1 north of Christchurch from the SH1/SH71 Lineside Road interchange to just north of the Pegasus roundabout. It includes a 6km bypass of Woodend.  

This project has been prioritised for delivery as one of the Roads of National Significance.

Roads of National Significance

  • Project timeline

    In November 2024, we completed the Investment Case. This confirmed the scope of the project and released funding for the design phase. A request for tender has gone to the market for design services and this work is expected to get underway in early 2025.

    As we want to start construction as soon as possible, we’re splitting the project up and designing a less complicated portion of the project first. This means we can have this portion designed and consented in around 12 months with construction able to start later in 2026.

    The project is expected to take around four years to complete.

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  • Benefits
    • An efficient and reliable state highway connection between Belfast and Pegasus that supports economic growth in Woodend, Pegasus and Ravenswood.
    • Safety improvements, including reduced traffic volumes on Main North Road, lowering crash risks at local intersections.
    • Grade separated interchanges (overpasses) at Williams Street and the Pegasus roundabout will enhance local connectivity.
    • Improved access and community connection for Woodend.
    • Freight can get where it’s needed to keep our economy thriving.
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  • Key features

    Providing a motorway extension and an alternative corridor bypassing Woodend will improve resilience to this nationally significant corridor and significant traffic relief for the community. It will support economic growth and improve local connections for Woodend, Pegasus and Ravenswood.

    Key features of the project include:

    • An upgraded four-lane motorway between SH71 Lineside Road and Williams Street, Pineacres.
    • A new section of four-lane motorway that bypasses Woodend Town Centre to the east between Williams Street, Pineacres and Pegasus Boulevard/Bob Robertson Drive.
    • Recognising the significant growth in the Pegasus, Ravenswood and Woodend communities since the original scheme design was developed, a motorway overpass with signalised on and off ramps will be included in the design where the Pegasus roundabout is now. The signalised intersections provide safer crossing facilities for pedestrians and cyclists.
    • A grade separated interchange (overpass) at the Williams Street intersection with SH1.
    • Access to the local road network at Lineside Road, Williams Street and Pegasus Boulevard/Bob Robertson Drive.
    • Overbridges at Woodend Beach Road and Gladstone Road to maintain these local connections.
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  • SH1 Saltwater Creek to Cam River safety improvements project

    The Government announced in July 2024 that the SH1 Belfast to Pegasus Motorway and Woodend Bypass project (B2P) had been prioritised for delivery as one of the first  Roads of National Significance (RoNS). The B2P project will make a difference to traffic numbers and the sort of traffic moving through Woodend.

    In line with the Government’s transport priorities, our focus now is on delivering safe roading infrastructure via the Roads of National Significance and Roads of Regional Significance, providing enhanced maintenance and highway resilience as well as increased support for Police enforcement.

    The combination of refocussing safety investment and prioritising an alternative route to the existing state highway corridor means the plans for SH1 safety upgrades from Saltwater Creek to Cam River will no longer progress to construction. This includes plans south of the Pegasus roundabout to the Cam River.

    While we’re working on the design of the new motorway, safety upgrade plans for the area north of Pegasus to Saltwater Creek will be rescoped with the B2P project in mind. Any work on the existing highway, north of the Pegasus roundabout, will likely happen between Saltwater Creek and Tulls Road. This will be very minor in scope and will not include flexible median safety barrier.

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