The Armadale Road to North Lake Road Bridge was built over the Kwinana Freeway to ease congestion, improve access for Cockburn visitors and residents, and complement other road improvements in the surrounding area.

Since the bridge opened in 2022, North Lake Road now connects to Armadale Road and is used by over 50,000 vehicles daily.This world class project was recognised at the annual Master Builders-Bankwest Excellence in Construction Awards, winning the ‘Best Civil Engineering Works Over $100,000,000’ and ‘Construction on a Challenging Site’ categories.

The project was delivered in an alliance contract by the Armadale Access Alliance – comprising Main Roads WA, Laing O’Rourke, and BG&E.

Works for this project included

• Construction of a new bridge over Kwinana Freeway, connecting Armadale Road and North Lake Road.
• Armadale Road was upgraded from Tapper Road to Kwinana Freeway, passing over the intersection of Tapper Road with a new bridge, and under the intersection of Solomon Road, via a trench structure.
• New north facing on and off ramps at Kwinana Freeway.
• Local roads were reconfigured with two new roundabouts to maintain connectivity.
• Collector distributor roads on both sides of the Kwinana Freeway from Berrigan Drive to Armadale Road.
• Modifications to the existing North Lake Road and Midgegooroo Avenue signalised the intersection.
• Additional lanes and turning capacity were added to the intersection of Armadale Road and Ghostgum Avenue to support ongoing residential growth in the suburbs of Calleya and Treeby.