Tuggerah to Doyalson - M1 Pacific Motorway widening

Roads and Maritime is upgrading the M1 Pacific Motorway between the Tuggerah and Doyalson interchanges to improve traffic flow and safety. The upgrade involves widening the motorway to provide three lanes in each direction and rebuilding the roadway to provide a smoother and more durable surface.

Updates and announcements

Tenders for the major construction contract are now closed.

Major construction is due to start in 2017 and Roads and Maritime will provide more information to residents and stakeholders as the project progresses.

During the detailed design refinements were made to the concept design which was originally displayed for community comment in August and September 2014

An overview of major changes can be viewed in the October 2016 project update (PDF,74Kb )

Detailed information on these changes can be found in the May 2016 supplementary review of environmental factors (REF) (PDF, 7.1Mb)

For more information about traffic noise please view Frequently Asked Questions - Noise treatment (PDF, 71Kb). and Roads and Maritime Services managing traffic noise from new and upgraded roads (PDF, 388Kb).

Project objectives

The M1 Pacific Motorway is a critical link in the National Land Transport Network and is part of the Sydney to Brisbane corridor, one of the busiest transport corridors in Australia.

The 12 kilometre section between Wyong Road, Tuggerah and the Doyalson Link Road is currently two lanes in each direction. It has the highest volume of traffic of the remaining four lane sections between Sydney and the end of the motorway at Beresfield. This motorway is used by through traffic and traffic north of Wyong accessing the Central Coast.

The upgrade will cater for the increase in traffic forecast as a result of predicted growth in the Central Coast, Hunter Region and North Coast along with greater freight demand.

The M1 Pacific Motorway productivity package, valued at about $400 million is funded by the Australian and NSW Governments, with the Australian Government contribution capped at $195.8 million. This package includes:

  • Widening the M1 between the Kariong and Somersby interchanges
  • Upgrading three of the four ramps at the Kariong interchange
  • Widening the M1 from four to six lanes between the Tuggerah and Doyalson interchanges
  • Upgrading the M1 Weakleys Drive and John Renshaw Drive intersection.

Key features and benefits

The upgrade includes:

  • Widening a 12 kilometre section of the motorway to provide three lanes in each direction between Wyong Road at Tuggerah and the Doyalson Link Road
  • Rebuilding a nine kilometre section of the motorway between Wyong River and the Doyalson interchange to improve the road surface
  • Improving road drainage for greater wet weather safety
  • Providing safety and capacity improvements to key motorway interchanges at Warnervale and Doyalson.

Key benefits include increased traffic capacity along the motorway, more reliable travel times, improved road safety and a smoother road surface.

Next steps

The project was approved in October 2014. Construction is expected to start in 2017 for completion in 2019.

Roads and Maritime will continue to keep stakeholders and the community informed as the project progresses.

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