New South Wales

New M4-M5 link design features announced by NSW Government

NEW design features for the next stage of WestConnex have been released, with potential for the M4-M5 Link twin tunnels to be completed early, capacity increasing from three to four lanes in each direction and exit and entry ramps at Camperdown removed.

Roads Minister Duncan Gay said engineering improvements meant the twin tunnels from Haberfield to St Peters could be built as a stand-alone project, and initially operate independently from the Rozelle Interchange and Iron Cove Link. This would allow the tunnels to potentially open to motorists in 2022.

Map showing the proposed alignment of the M4-M5 link
Above: Map showing the proposed alignment of the M4-M5 link / Sydney Motorway Corporation.

"This stage of WestConnex is the most important because it's the missing link which finally joins the M4 and M5 motorways together," Mr Gay said.

"This government is building infrastructure Sydney desperately needs and we're working with the community to make improvements to achieve the best outcomes." Mr Gay said.

Increasing the number of lanes in the M4-M5 Link tunnels will help future proof Sydney's road network as it links to other major road projects, the Minister said.

The $7 billion M4-M5 Link will be the central spine of Sydney's future motorway network by providing connections to the proposed Western Harbour Tunnel and F6.

The new design helps significantly reduce traffic on Parramatta Road between Haberfield and the CBD. The tunnel alignment will move west to a more direct route between Rozelle and St Peters interchanges, and will not impact Royal Prince Alfred Hospital and its Cyclotron medical research facility, or the University of Sydney.

No further residential properties are required for the M4-M5 Link, however a small number of commercial properties will need to be acquired for a tunnelling site on Parramatta Road at Camperdown.

Federal Minister for Urban Infrastructure Paul Fletcher said the Australian Government was supporting major infrastructure across Sydney with $1.5 billion in grant funding and a $2 billion concessional loan towards WestConnex.

"There is no project more important for the millions of people in western and south western Sydney than WestConnex, which is why we're getting on with building it," Mr Fletcher said.

The community will have further opportunity to provide feedback when the M4-M5 Link Environmental Impact Statement is released next year.

The approximate $16.8 billion, 33-kilometre WestConnex tollway is being delivered across stages, with the M4-M5 link to form the third and final stage. The overall project will extend from Parramatta to Sydney's CBD, Sydney Airport and the Port Botany precinct and the M5 in south-west Sydney, and carry an estimated 400,000 vehicles per day.

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