Delivered by the Acciona Bouygues Samsung joint venture, the two 7.5 kilometre long mega underground tunnels now link the M4 at Haberfield and the M8 at St Peters in Sydney's inner west.

The WestConnex project allows to:

•    Save up to 40 minutes between Parramatta and Sydney Airport during peak time
•    Bypass 52 traffic lights 
•    Accommodate the next generation of electric, connected, and automated vehicles

Since the WestConnex M4 Tunnel opened, air quality along the Parramatta Road corridor has improved by 10 to 15%.

Once again, congratulations to all for the completion of this project, which helps to connect the community of Sydney!