Infrastructure Priority List

Mount Ousley Interchange

Mount Ousley Interchange

Infrastructure Australia | Infrastructure Priority List |

Mount Ousley Interchange

PROJECT STAGE
EARLY STAGE PROPOSAL
EARLY STAGE PROPOSAL
EARLY STAGE PROPOSAL
POTENTIAL INVESTMENT OPTIONS
POTENTIAL INVESTMENT OPTIONS
POTENTIAL INVESTMENT OPTIONS
INVESTMENT READY PROPOSAL
INVESTMENT READY PROPOSAL
INVESTMENT READY PROPOSAL
PROJECT DELIVERY
PROJECT DELIVERY
PROJECT DELIVERY
PROJECT DELIVERY
POST COMPLETION REVIEW
LOCATION
Wollongong, NSW
Dharawal country
SECTOR
Transport
PROPONENT
NSW Government
ESTIMATED TOTAL COST
$390 million (P90, outturn)
ESTIMATED COMMONWEALTH FUNDING
$312 million
PRIORITY LIST STATUS
Previously listed
EVALUATION HISTORY
Planning Investment (Problem Identification) - 08/12/2020
Delivery Investment (Business Case) - 18/08/2024
A graphic of the Australian continent with NSW state shaded and small dot representing Sydney.
A map showing the details of Mt Ousley interchange

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.

The Mount Ousley Interchange project is to implement a grade separation for the intersection of Mount Ousley Road and the M1 Princes Motorway at the base of Mount Ousley. The M1 Princes Motorway / Mount Ousley Road intersection is the only location on the motorway between Waterfall and Albion Park Rail where vehicles are required to make an at-grade right-turn to access the motorway. The M1 Princes Motorway is part of the National Land Transport Network (NLTN) and a key focus for the project is improving national freight efficiency and productivity given the relatively high volumes of road freight carried on this route.

At the time of evaluation, the Australian Government had committed $312 million and the NSW Government had committed $78 million to the project.