There's been a major breakthrough in Australia's largest road infrastructure project, the Westconnex. New sections of the tunnel that will link the M4 to Sydney Airport and the M5 have been drilled for the first time. 7NEWS at 6pm. www.7NEWS.com.au #Westconnex #7NEWS | 7NEWS Sydney

19K views · 157 reactions | A major milestone for Australia's largest road infrastructure project occurred yesterday with a tunnel breakthrough for the final stage of WestConnex. The tunnel will link the M4 to the airport and M5. It's set to save travel time but with new tolls. 7NEWS at 6pm. www.7NEWS.com.au #WestConnex #7NEWS | 7NEWS Sydney | Facebook

7NEWS has gone 50 metres underground for an exclusive look at the massive Western Harbour Tunnel works, including two of the largest man-made caverns ever excavated in Australia. | 7NEWS Sydney

36K views · 741 reactions | One of the most exciting parts of our year was unveiling the revamped Shep's Mound! Watch the spot come to life in this timelapse of the construction. ️Kurt Ams | Sydney Airport | Facebook

78K views · 574 reactions | #EXCLUSIVE: Turning Badgery's Creek from mammoth construction site to a working international airport edges closer by the day. Tonight, #9News can reveal the new technology that'll get you to the gate and the team of Sydney tradies who are building it one piece at a time. | 9 News Sydney | Facebook