M4-M5 Link Environmental Impact Statement

Sydney’s population is set to grow by more than one million people in the next 10 years, with our already congested road network expected to cater for an estimated 21 million trips per day by 2036.

The NSW Government is spending a record $41.5 billion on road and public transport projects over the next four years to deliver an integrated transport solution for greater Sydney.

WestConnex is part of the Government’s vision for supporting Sydney’s growing population. Upon completion, it will provide safer, faster and more reliable travel, and make it easier for businesses and communities to connect.  

The M4-M5 Link is a critical part of WestConnex, connecting the New M4 (incorporating the M4 East and M4 Widening projects) with the New M5, and allowing the full benefits of WestConnex to be realised.

About the EIS

The M4-M5 Link Environmental Impact Statement (EIS) was on public exhibition from 18 August to 16 October 2017. During this 60-day consultation period, stakeholders were encouraged to review the EIS and make a formal submission about the project to be considered by the Department of Planning and Environment as part of its assessment of the project.

The M4-M5 Link project team held five information sessions to complement the release of the M4-M5 Link EIS. During these sessions, stakeholders and community members were given the opportunity to discuss the EIS with technical specialists and learn about the submissions process. These sessions were attended by more than 250 members of the inner west community. 

The Community Guide to the M4-M5 Link Environmental Impact Statement addresses the key areas of interest identified through community feedback over the past 12 months as part of the project’s community engagement program.  

It includes a project summary, an overview of potential impacts, and a reference to the relevant sections of the EIS to help you find more detailed information. It does not replace the EIS. For a further breakdown of key areas, please refer to the following links:

What's next?

The Department will review all submissions received, assess the SPIR and then prepare the Secretary's Environmental Assessment Report. This report will include a recommendation to the Minister for Planning who will then make a determination on the project.

If the project is approved by the Minister for Planning, it will be constructed and operated in accordance with the mitigation measures described in the EIS, the SPIR and the Minister's Conditions of Approval.

The plans proposed in the EIS may evolve depending on community feedback and the construction methodologies developed by the contractors, once appointed.

Should changes to the project be required following approval, Roads and Maritime can apply to the NSW Minister for Planning. Any modification requests would be lodged with DP&E for assessment and would be appropriately notified and/or exhibited depending on the scale of the proposed modification and the potential for environmental or social impacts. 

Where to view the M4-M5 Link EIS

To view a copy of the EIS online, visit the Department of Planning and Environment website

Find out more

Email [email protected] or phone 1800 660 248 and ask to speak to a member of our community engagement team.

M4-M5 Link mainline tunnels animation