Skip to main content

WestConnex M4-M5 Link

M4-M5 Link WestConnex

WestConnex is Australia’s largest road project, linking Sydney’s west and southwest with the city, airport and port in a 33 km continuous motorway. It will facilitate economic growth and urban revitalisation by providing new opportunities for residential and commercial development.

This reference is in relation to SICE’s works for the WestConnex Stage 3A M4-M5 Link Tunnel, which is being delivered in two stages:

  • Stage one - construction of the M4-M5 Link Tunnels between the New M4 at Haberfield and the New M5 at St Peters and stub tunnels to the Rozelle Interchange. This stage is being managed by Sydney Motorway Corporation.
  • Stage two - construction of the Rozelle Interchange and Iron Cove Link. This stage is being managed by Roads and Maritime Services.

The M4-M5 Link Tunnels project is the final and most critical component of WestConnex, featuring twin tunnels between the New M4 at Haberfield and the New M5 at St Peters. Each tunnel will be approximately 7.5 kilometres long and able to accommodate up to four lanes of traffic in each direction. The M4-M5 Link Tunnels will be delivered as a stand-alone project, and provide an additional 2.5 hectares of green space in St Peters.