Monash Freeway Upgrade

The Monash Freeway Upgrade will improve safety and reliability along the 44 kilometres between Chadstone and Pakenham, extending what is already Australia's longest stretch of managed motorway.

The upgrade is part of the $5.5 billion Western Distributor Project and includes 30 kilometres of extra traffic lanes along with major improvements to the managed motorway system.

Key features include:

  • Widening the freeway from four to five lanes each way between the EastLink interchange and South Gippsland Freeway
  • Widening the freeway from two to three lanes each way between the South Gippsland Freeway and Clyde Road in Berwick
  • New and upgraded freeway ramp signals

The upgrade extends over 44 kilometres between Warrigal Road in Chadstone to Koo Wee Rup Road in Pakenham. The freeway will be widened between EastLink and Clyde Road.

These improvements mean the M1 will be a managed motorway from Duncans Road inWerribee to Koo Wee Rup Road in Pakenham – around 90 kilometres connecting Melbourne's east and west.

This video provides an overview of the project and its benefits.

Monash Freeway Upgrade video transcript Monash Freeway Upgrade transcript (DOCX 13.85 KB)DOCX icon
Monash Freeway Upgrade MapMonash Freeway Upgrade Map (PDF 195.32 KB)PDF icon


The Monash Freeway Upgrade will relieve congestion and support jobs growth in Melbourne's south east. Key benefits include:

  • Hallam Bypass will have capacity for 50 per cent more vehicles in peak hour
  • Between EastLink and the South Gippsland, the busiest section of the freeway, will have 20 per cent more capacity
  • Improved trip reliability for over 200,000 motorists a day on the busiest sections
  • Safer travel, with crashes causing serious injury reduced by up to 20 per cent
  • Reduced travel times and room for an extra 2000 vehicles during the peak
  • Providing up to 400 jobs at the peak of construction
  • Overall economic benefit to the State of around $100 million a year
  • Savings in costs for freight and business of up to $30 million a year
  • Stronger links between key employment and education precincts along the M1.

Project status

The Monash Upgrade project is proceeding as part of the Western Distributor Project.

Detailed planning is underway and construction will start in 2016 and be complete in 2018.

Contact us

For more information about the project please contact:


Call 1800 817 687

interpreterFor languages other than English, please call 1800 817 687.


Media and publications

Monash Freeway Upgrade Fact Sheet Monash-Freeway-Upgrade-overview.pdf (PDF 615.72 KB)PDF icon

Page last reviewed on 3 February 2016

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