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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.

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.

In 2011, Infrastructure Australia rated the National Managed Motorways initiative as ‘Ready to Proceed’ on the Infrastructure Priority List.

The Bindoon Bypass project is to construct a western bypass of Bindoon along the Great Northern Highway, in the Shire of Chittering, north-west of Perth. The bypass would be a two-lane highway, comprising 61.6 km of new highway and 4.4 km of improvements to the existing Great Northern Highway.