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