Karel Avenue Upgrade

Karel Avenue was widened to four lanes between Farrington Road and Berrigan Drive, including the bridge over Roe Highway. 

Other upgrades included:

• Interchange upgrades 
• Karel Avenue Bridge extended across the freight line to facilitate construction of the Thornlie-Cockburn Link as part of METRONET
• Training Place intersection modified with full access
• Training Place intersection pavement and median kerb
• Shared path underpass extended under Karel Avenue
• Modifications to the roundabout approaches
• Median kerb and brick paving between Berrigan Drive and Training Place
• Permanent line marking and landscaping to Karel Avenue
• Anti-graffiti painting to remaining structures
• Stone pitching to northern abutment walls
• Fencing works along newly constructed Principal Shared Path

The project applied sustainable construction concepts including:

• Utilising crushed recycled concrete in some of the Roe Highway ramps and shotcrete on the rail bridge abutment
• Sustainable, low maintenance and water wise landscaping was used at the busy roundabout intersection of Berrigan Drive and Karel Avenue
• Landscaping includes Grass Trees and a feature native eucalypt planted within a bed of stone and organic mulch arranged in a pattern that provides a striking aesthetic and visual cue for aircraft using the adjacent Jandakot Airport. A similar design has been implemented at the two other roundabouts either side of the Roe Highway bridge.
• The project reduced water usage by 19 million litres, which is enough to fill over seven Olympic swimming pools. This saving was made through the use of a 20,000 litre water storage tank kept on site instead of a Turkeys nest.

The $28.7 million project was funded by the Australian and State Governments with contributions from Jandakot Airport and the City of Cockburn.