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This assessment brief outlines the Western Australian Government's proposal to widen a section of the North West Coastal Highway in the Pilbara region of Western Australia. The project will improve the efficiency and safety of freight and other vehicles on the highway by widening the sealed section and creating improved flood immunity to support the operation of wide and heavy vehicles. The Western Australian Government is seeking $143.2 million in Commonwealth funding for the project.

This assessment brief outlines the Queensland Government's plan for the core Cross River Rail project. The project will provide the necessary infrastructure to support the transformation of Brisbane into Australia's third internationally competitive city and support critical freight networks. An updated capital cost of $4,445 million was announced publicly by the Queensland Government in late June 2012. The Queensland Government is seeking $3.33 billion of Commonwealth funding for the project.

This assessment brief outlines the Queensland Government's plan to upgrade the Ipswich Motorway between Rocklea and Darra. The upgrade will improve travel times and reliability for freight travelling on the Ipswich Motorway between Rocklea and Darra. The Rocklea to Darra section of the Ipswich Motorway is the final stage of the six-stage upgrade of the Ipswich Motorway. This is the first time Infrastructure Australia has received a submission for the sixth stage, Rocklea to Darra. The Queensland Government is seeking $558 million in Commonwealth funding for the project.

This assessment brief outlines the Queensland Government's plan for upgrades to the Gateway Motorway North. The upgrades will combat traffic congestion, poor separation of local trips and freight movements, and high crash rates on the Gateway Motorway North.

In February 2011, Infrastructure Australia assessed the Oakajee Port initiative, in Geraldton Western Australia, as ‘Threshold’.

In 2013, Infrastructure Australia assessed the North West Coastal Highway – Minilya to Barradale initiative as ‘Threshold’.

In 2013, Infrastructure Australia assessed the Leach Highway Fremantle Upgrade initiative as ‘Threshold’.

In 2013, Infrastructure Australia positively assessed the Great Northern Highway – Muchea to Wubin Stage 2 project as ‘Threshold’ on the Infrastructure Priority List.

In 2015, Infrastructure Australia included the Perth Freight Link initiative as a ‘Threshold’ project on the Infrastructure Priority List.

On 14 June 2017, Infrastructure Australia positively assessed the Western Australian government’s Armadale Road Upgrade project as a Priority Project on the Infrastructure Priority List.