Past Evaluations

The table below shows the Stage 3 proposals that Infrastructure Australia has previously evaluated. 

For each proposal, we publish a summary of our evaluation, which you can access in the table below. This outlines our assessment of the strategic fit of the proposal, the costs and benefits the proposal offers for Australians, and the deliverability of the proposal.

To see the proposals we have positively evaluated as nationally significant priorities for Australia, explore the Infrastructure Priority List.

A number of business cases evaluated by Infrastructure Australia have been publicly released, view all available business cases.

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The proposal includes widening Tonkin Highway from four to six lanes and upgrading the intersections at Hale Road, Welshpool Road and Kelvin Road, providing benefits to north-south commuters and freight traffic around the Perth Airport Industrial Hub.
Evaluation Date
31 August 2021
State:
Perth
The Barwon Heads Road Duplication proposal seeks to duplicate a four kilometre section of Barwon Heads Road between Settlement Road and Reserve Road. The proposal includes construction of a new bridge over the rail line at Marshall and remove the level crossing, upgrade multiple intersections, a shared path, new street lighting and road signage.
Evaluation Date
31 August 2021
State:
Victoria
The Tonkin Highway Extension proposal involves the construction of a 14 km extension of the Tonkin Highway from Thomas Road to the South Western Highway.
Evaluation Date
17 June 2021
State:
WA

The Rockhampton Ring Road proposal is part of the Bruce Highway Upgrade Program. It is designed to provide an alternative to the existing section of the Bruce Highway through Rockhampton.

Evaluation Date
15 April 2021
State:
Queensland

The Western Harbour Tunnel proposal involves the construction of a motorway crossing underneath Sydney Harbour, connecting WestConnex with the Warringah Freeway.

Evaluation Date
15 April 2021
State:
NSW

The Newcastle Inner City Bypass – Rankin Park to Jesmond project involves the construction of a 3.4 km section of the Newcastle Inner City Bypass. Bypassing the existing route is intended to reduce congestion and travel times, and improve road safety.

Evaluation Date
15 April 2021
State:
NSW
The business case is for a new railway line to service Greater Western Sydney and the new Western Sydney Airport. It includes new stations at the Western Sydney Airport and the Western Sydney Aerotropolis, as well as fully-automated driverless trains.
Evaluation Date
18 February 2021
State:
NSW
The business case is for upgrading the Tonkin Highway between Great Eastern Highway and Collier Road, and associated works, to address congestion, improve reliability, freight productivity and active transport connectivity.
Assessment Status
Project evaluation discontinued due to amended evaluation threshold
Evaluation Date
17 December 2020
State:
WA
Developed as part of the Australian Government’s Faster Rail Prospectus process, the North Coast Connect proposal is designed to provide a faster rail connection between Brisbane and the Sunshine Coast.
Evaluation Date
08 December 2020
State:
Queensland

The business case is to build a new Armadale Road Bridge over the Kwinana Freeway, which would connect North Lake Road to Armadale Road in the Cockburn Central area. It aims to resolve current bottlenecks, improve travel times, and improve amenity and liveability within the area.

Evaluation Date
08 December 2020
State:
WA