NSW government signs contract with Seymour Whyte for M5 Westbound Upgrade

NSW, Seymour Whyte,

July 21, 2025

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Seymour Whyte has been appointed to carry out the M5 Westbound Upgrade in Sydney’s south west.

The NSW Government is planning to ease congestion and improve safety on the M5 Motorway for motorists travelling westbound between Moorebank Avenue and Hume Highway.

The M5 Westbound Upgrade project includes a new three lane toll-free bridge over the Georges River and train lines at Liverpool, improving the connections between the M5 Motorway, Moorebank Avenue and the Hume Highway. 

The upgrade includes the removal of the weave on the M5 Motorway between Moorebank Avenue and the Hume Highway to improve safety and traffic flow for road users entering and exiting the M5 Motorway. 

The project will also include a new underpass at Moorebank Avenue, connecting the M5 Motorway westbound to the Hume Highway, and upgrade the intersection between the M5 Motorway and Moorebank Avenue. 

The existing bridge over the Georges River, which connects the M5 Motorway to the Hume Highway and Moorebank Avenue, sees more than 2,500 trucks a day move from the Moorebank Intermodal Terminal Precinct onto the Sydney motorway network.

Afternoon peak sees traffic bank up, as cars and trucks entering the motorway westbound at Moorebank Avenue attempt to merge with traffic already on the motorway that is looking to exit at the Hume Highway. Truck numbers on the interchange are also expected to increase as new sections of the expansive Moorebank Intermodal Terminal Precinct come online. 

The Albanese and Minns governments are partnering to build a better NSW through investments in major infrastructure. Both have each committed $190 million towards this project as part of the ongoing Western Sydney infrastructure blitz. 

Source: Copyright, Commonwealth of Australia

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