CityLink Tulla Widening – Project Profile

June 7, 2018

Project overview

The Tullamarine Freeway, linking Melbourne’s Tullamarine Airport with the CBD and the West Gate Freeway, is one of Melbourne’s most heavily used roads. It carries more than 210,000 vehicles per day.

The CityLink Tulla Widening project has increased the number of lanes in both directions to increase capacity and improve safety. One project, to widen the freeway between the airport and Bulla Road is being delivered by VicRoads, while the other project, to widen the freeway between Bulla Road and Power Street, is being delivered by Transurban.

Recycled construction materials used to build CityLink Tulla Widening

Alex Fraser is the primary supplier of recycled roadbase materials for the Bulla Road to Power St section of the project, on behalf of design and construct contractor CPB Contractors (formerly Leighton Contractors) for the $570 million section, for which Transurban is responsible.

The freeway contains glass sand manufactured from more than 40 million waste glass bottles – a standout example of what can be achieved by choosing sustainable materials.

Alex Fraser Managing Director Peter Murphy said this was another time Victoria has set the bar for sustainable procurement and development on a major infrastructure project.

“Melbourne is developing using quality recycled materials. This helps reduce landfill and truck traffic while preserving valuable quarry materials and reducing the carbon footprint of construction.”

Supply began in March 2016.

Alex Fraser supplied roadbase materials for the project including:

• 50,000 tonnes of class 2, 3 and 4 crushed concrete
• 40,000 tonnes of class 3 cement treated crushed concrete; and
• 60,000 tonnes of recycled capping.

CityLink Tulla Widening awarded Infrastructure Sustainability rating for design excellence

he project received an IS certification with a design rating of Excellent.

By using Green Roads materials the project saved:

• 150,000 tonnes of material from landfill
• 430 truck movements
• 1,000 tonnes of carbon emissions