WestConnex M4 Widening Stage 1

Faster

travel

for

Sydneysiders

The WestConnex when fully completed will deliver numerous benefits such as reducing travel times for private vehicles and public transport, doubling vehicle capacity, removing trucks - neighbourhood revitalisation and delivering more than $20 billion in economic benefits to NSW.

The M4 Widening Stage 1A project comprises the first stage in the delivery of WestConnex, Australia’s largest urban road project. WestConnex will connect Sydney’s western suburbs with the central business district, while easing congestion, reducing travel times and improving road safety.

This project includes the widening and upgrading of approximately 7.5 km of the M4 Motorway between Pitt Street, Parramatta and Homebush Bay Drive, Homebush.

Key features of the project include:

A new two-lane viaduct for westbound traffic
Reconfiguration of the traffic lanes on the existing viaduct making a total of four lanes in each direction
Widening of the existing motorway to the south of westbound carriageway
Widening of the at-surface carriageway of the motorway to four lanes in each direction
Two new on-ramps at Hill Road and Homebush Bay Drive
Widening and lengthening of existing ramps
Provision of new and modified noise barriers
Provision of Intelligent Transport Systems (ITS) infrastructure
Provision of tolling infrastructure.

Client

CPB Contractors Joint Venture

Year

2015 – 2017

Location

Sydney, Australia

Expertise

Transport Planning & Advisory Tunnels Roads & Highways

7.5

Widening and upgrading of the M4 Motorway between Pitt Street, Parramatta and Homebush Bay Drive, Homebush

Civil Design Expertise

SMEC was engaged as Principal Design Consultant for Stage 1A. SMEC (in joint venture with Rizzani De Eccher and CPB Contractors) was responsible for all civil design, including alignment, drainage, flooding and hydrology, pavements, road furniture, durability assessments, street lighting and Information Technology Services (ITS).

Reducing travel times and revitalising neighbourhoods

The WestConnex when fully completed will deliver numerous benefits such as reducing travel times for private vehicles and public transport, doubling vehicle capacity, removing trucks – neighbourhood revitalisation and delivering more than $20 billion in economic benefits to NSW.