M6 Motorway (Sydney)

M6 Motorway New South Wales
General information
Type	Motorway  (Under construction)
Length	4 km (2.5 mi)
Opened	2025 (expected)
Route number(s)
Major junctions
North end	M8 Motorway Arncliffe
South end	President Avenue Kogarah
Highway system
Highways in Australia National Highway • Freeways in Australia Highways in New South Wales
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The M6 Motorway is an under-construction motorway in Sydney, New South Wales consisting of twin, 4-kilometre long tunnels linking the M8 Motorway at Arncliffe to President Avenue at Kogarah.^[1] This section (referred to as "stage 1") started major construction in November 2021 and is expected to open in late 2025. The possibility of future extensions to the south will be accommodated by providing stub tunnels in the project.

The project will include new shared cycle and pedestrian pathways, as well as a new pedestrian bridge across President Avenue. There will also be an upgrade of the Princes Highway and President Avenue intersection. As part of the motorway, a motorway control centre and tunnel ventilation facilities will be built.^[1]

The government's long term plan for the motorway includes two further sections: "Section B" would run from the southern end of Stage 1 to the existing freeway-grade section of Taren Point Road in Taren Point, and "Section C" would connect Taren Point Road with the A1 road (Princes Highway) in Loftus.^[2] In June 2022, the NSW Government announced that some proposed major infrastructure projects including Stage 2 of the M6 Motorway, the Beaches Link and the Great Western Highway Blackheath to Little Hartley Tunnel would be shelved indefinitely, due to market constraints and labour shortages.^[3]