F6 Corridor - Stage 1- Expansion Project


Prospective pipeline

Credibly proposed


Under procurement

Preferred bidder announced

Recently closed
F6 Corridor - Stage 1- Expansion Project

Prospective pipeline

Greenfield (construction) or brownfield (government asset divestment) projects needed or likely to occur within the next five years, but is not formally proposed by a state, territory or major local government.

Credibly proposed

The project or divestment is supported by a state, territory or major local government, is subject to studies or other processes (such as pre-feasibility or scoping studies or business case development), and is likely to proceed to formal announcement.   


The project has a firm commitment and timeline from a state, territory or major local government, but has not yet entered the market.

Under procurement

The project or transaction is under procurement (such as a call for Expressions of Interest, requests for tender, or another offer to the market).

Preferred bidder announced

A preferred bidder has been selected and is in exclusive negotiations.

Recently closed

Projects that have progressed to contractual close remain on ANZIP for 12 months.

ANZIP is focused only on major infrastructure activity, above the following thresholds:


Construction projects: > AUD$300m

Investable greenfield & brownfield: > AUD$100m

New Zealand

All greenfield and brownfield projects and divestments: > NZD $100 million

STATUS: Credibly proposed
PROCUREMENT APPROACH: Traditional procurement, Unknown
TYPE: Greenfield

The F6 is a missing link in the Cumberland Motorway Scheme between the M1 Princes Motorway at Waterfall and the Sydney Motorway Network.

The M1 Princes Motorway is a key part of the national highway system, extending south from Waterfall to Yallah where it becomes the A1 Princes Highway and continues further south. It currently does not have an effective link to Sydney's broader motorway system from north to south.

The F6 Corridor was also identified as a priority project in the NSW Long Term Transport Master Plan, 2012 and the State Infrastructure Strategy Update, 2014.

Infrastructure Australia lists the project as a Priority Initiative in its Infrastructure Priority List with a medium term delivery timescale (5-10 years).

The NSW Roads Maritime Services, after carrying out geotechnical analysis in 2016 and 2017, confirmed to proceed with the planning and project development of Stage 1 of the F6 road corridor in Southern Sydney.

Roads and Maritime Services submitted a State Significant Infrastructure (SSI) Application to the Department of Planning and Environment (DP&E) to identify topics that must be assessed in an Environmental Impact Statement (EIS).

Stage 1 is proposed as a four kilometre tunnel, connecting underground from the WestConnex New M5 junction at Arncliffe to President Avenue in Kogarah.

Stage 1 (Arncliffe - President Avenue) is the first of the four study areas of the F6 corridor geotechnical analysis that proceeds to planning and development. The remaining three study areas for geotechnical analysis are:

- President Avenue - Tarren Point;
- Tarren Point -Loftus; and
- Loftus - Waterfall.

The F6 Extension Stage 1 was also identified in the October 2017 draft Future Transport Strategy 2056, as a committed transport initiative for New South Wales for the next 10 years.

The 2017-18 NSW Budget allocated $15 million towards planning works and also announced $1.1 billion of the Restart NSW fund is reserved for Western Harbour Tunnel and the F6 extension projects.

In addition to the $15 million provided in 2017-18 Budget, the Government committed a further $35 million in October 2017 to support the development and planning of the corridor.

Gateway to the South connection

The F6 corridor would also provide for possible connections to Westconnex through the "Gateway to the South" which was included in the 2014 State Infrastructure Strategy and the Updated Strategic Business Case for WestConnex (2015). There is currently $300 million allocated to Gateway to the South.

The Updated Strategic Business Case for WestConnex noted three components for "Gateway to the South":

- short and medium term pinch point investments on the A1, A3 and A6 corridors, including bus priority infrastructure. This investment will provide improved traffic flow for future connections to the M1 (F6) preserved corridor;
- business case development of a Southern Connector, connecting directly into WestConnex and heading south towards Monterey; and
- scoping studies for larger scale investment options on the A6 and M1 (previously known as the F6) corridors.

The New M5 (Stage 2 of WestConnex) has been designed with provisions for a connection for a possible Southern Connector.

Last reviewed: 04/04/2018

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Government sponsors


Supporting agencies