As work continues on the West Gate Tunnel Project, we are using a range of construction methods to minimise disruption to motorists, local residents and businesses.

The project is a massive job and will take five years to build, with the new road opening in 2022. For construction updates, see what’s happening in the:

Our requirements

The West Gate Tunnel Project’s builder is required to meet strict obligations around noise, vibration and traffic management. These controls were put in place through the Environment Effects Statement, which assessed the project’s construction methods.

Read more about the project’s Environmental Performance Requirements and planning approvals.

Keeping roads open when they're busy

We are keeping Melbourne moving with all lanes open at peak periods on the West Gate Freeway, Footscray Road, Millers Road and Williamstown Road.

We are keeping lanes open on the West Gate Freeway by doing road widening and other works on the road shoulder or in the centre. The West Gate Freeway has plenty of space to safely achieve this.

To help plan your journey, you can find the latest updates for temporary and long-term disruptions on our travel disruptions map. New notifications are published daily, so make sure to check back regularly.

Construction noise

Strict controls are in place to make sure construction noise is well managed and complies with EPA guidelines. We will:

  • Use screens and noise enclosres to reduce noise from major activities at construction compounds
  • Leave existing noise walls in place where practical or provide temporary noise walls until new ones are built
  • Plan noisy works at times when they will cause the least inconvenience where possible and provide advanced notice
  • Monitor noise levels and take action to reduce noise
  • Adopt best practice site management to reduce noise from work areas.

There are specific requirements to protect residents from excessive noise at night. If noise exceeds set levels we need to reassess the situation and take action to manage any impacts. This could mean changing the time of work, providing respite periods, using noise barriers or changing construction methods to reduce noise.

Tunnel boring machines

With thousands of tunnels operating around the world, we know they can be built safely and without affecting homes above them. Using state-of-the-art tunnel boring machinery means large-scale construction can happen underground, with minimal disruption above.

Two purpose-built Tunnel Boring Machines (TBMs) will be used to create twin tunnels between the West Gate Freeway and the Maribyrnong River. The tailor-made machines with 15.6 m diameter cutting heads will be used to build twin, three lane tunnels.

The TBMs will excavate over 1.5 million cubic metres of rock and soil while a mobile factory behind them installs the concrete tunnel lining. Depending on the ground conditions, the machines will typically bore at an average rate of 9 m per day.

Rock and soil (spoil) being removed for tunnel construction will be enclosed or covered at all times.

The tunnel will be 27.2 metres at its deepest point.

Click to enlarge image

Vibration and ground movement

Tunnel boring machines are very good at reducing vibration so many people living and working above the tunnel may not notice construction happening underground. We will:

  • Inspect properties before and after construction
  • Monitor ground movement and vibration levels at all times
  • Meet strict targets set to manage vibration and minimise disruption. Building bridges and elevated roadways

Contaminated soil

Most of the soil and rock we’re digging out of the ground is natural fill material. Because heavy industry and rubbish tips have operated in this area over many years, we expect to find some contaminated soil and will manage it safely. We will:

  • Carry out detailed studies to identify areas with contamination
  • Manage any contaminated materials in accordance with EPA Victoria requirements, environmental laws and regulations
  • Test soil and separate contaminated materials from clean fill
  • Use facilities licenced by EPA Victoria to treat and dispose of contaminated soil or  re-use fill according to approved guidelines.

Local and construction traffic

There are extensive requirements to ensure road works and detours are well planned and executed. There will be changes on some roads, detours and a lot of trucks travelling around the precinct areas.

To keep freight moving, we will maintain 24/7 access to the port and keep Footscray Road open and running as smoothly as possible.

We will keep traffic moving by:

  • Keeping you informed of planned disruptions on our travel map
  • Developing and following plans for how vehicles, cyclists and pedestrians move around work areas, public transport, speed limits, safety and property access
  • Making sure detours are safe, clearly signed and avoid residential areas where possible
  • Reducing construction traffic at peak times
  • Keeping construction traffic on major roads, freeways and haulage routes.

Trees

We want to see as many mature trees retained and will only remove plants when it is necessary to build the project. We will:

  • Do detailed tree studies to confirm important trees and habitats
  • Set out no-go zones and fence areas to be protected
  • Plant over 17,000 trees and thousands of native and Indigenous shrubs and grasses.

Parks and sporting grounds

We have avoided using open spaces for construction as much as possible and will work with councils, community groups and sporting clubs to reduce any disruption from our works. We will:

  • Keep all sporting grounds open and operating during construction
  • Work with councils and clubs to avoid impacting on organised local events
  • Reinstate or improve the small number of open space areas being used during construction.

Construction hours

With the exception of tunneling activities, working hours will aim to avoid sensitive periods and to minimise impacts to road users and local residents.

Night work will be required on the West Gate Freeway, Footscray Road and within the rail environment to ensure roads and rail remains operational throughout construction.

Tunneling activities will be undertaken continuously 24-hours, seven days a week.

We’ll communicate any planned disruptions or delays in advance to residents, businesses and road users.

A community contact line is available 24-hours, seven days a week to receive enquiries and provide information – 1800 105 105.

 

Planning and approvals

All planning approvals are in place and the project’s construction methods have been assessed through an Environment Effects Statement. The project’s builder is required to meet strict obligations around noise, vibration and traffic management.

More information

For precinct information see the West Gate FreewayTunnels, and Port to City precinct pages.

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