Past Evaluations

The Assessment Framework is changing in line with amendments to the Infrastructure Australia Act 2008. Find out more here.  

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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Suburban Rail Loop (SRL) East is the first stage of a proposed mass transit system that will serve Melbourne’s middle and outer suburbs. SRL East includes 26km of twin rail tunnels and six new underground stations between Cheltenham and Box Hill. 

Evaluation Date
31 January 2025
State:
Victoria

Enabling infrastructure is needed to support the transition to renewable energy sources, such as solar and wind farms and batteries, to meet Australian and NSW Government’s emissions reduction targets.

Evaluation Date
28 January 2025
State:
NSW

Transport challenges in the Greater Hobart area are adversely impacting quality of life, productivity, and the environment.

Evaluation Date
28 January 2025
State:
Tasmania

Australia's rail system faces interoperability challenges due to its historical development as separate state-based systems.

Evaluation Date
28 January 2025
State:
National

The proposed Richmond Road upgrade between M7 Motorway and Townson Road at Marsden Park as part of North West Growth Centre Road Network Strategy aims to support development in the North West Growth Area.

Evaluation Date
28 January 2025
State:
NSW

To support growing amounts of renewable energy generation on Australia’s east coast, the National Electricity Market (NEM) requires significant investments in dispatchable energy storage to maintain electricity grid stability and reliability.

Evaluation Date
28 January 2025
State:
ACT

The transport sector accounts for a large proportion of Australia’s greenhouse gas emissions.

Evaluation Date
28 January 2025
State:
Victoria

Population growth and climate change are driving greater reliance on more costly sources of water to meet demands for agricultural, urban and cultural uses of water within Victoria’s Werribee River Catchment.

Evaluation Date
19 December 2024
State:
Victoria

The Bolivar wastewater treatment plant serves 80% of Adelaide’s population and is already operating at 15% above its design capacity due to greater than expected population growth.

Evaluation Date
19 December 2024
State:
SA

The Mount Ousley Interchange aims to improve safety for road users by separating light and heavy vehicles, improve travel time and efficiency for all motorists, support growing freight movements, and improve access to and from the M1 Princes Motorway and Wollongong CBD.

Evaluation Date
16 August 2024
State:
NSW