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Delivering major utility crossing infrastructure supporting the construction of the M12 Motorway and Western Sydney International Airport corridor.

Transport for NSW – M12 Motorway Project

Western Sydney, New South Wales

Major Civil Infrastructure

[Project Background]

Enabling Infrastructure for the M12 Motorway

The M12 Motorway will connect Western Sydney International Airport at Badgerys Creek to the broader Sydney motorway network, improving freight movement and reducing congestion across Western Sydney.

Killard was engaged to install utility crossing infrastructure beneath the future motorway alignment, enabling services to pass under the motorway corridor without disrupting road construction.

[Scope Of Works]

Operating in Sensitive and Live environments

Construction of reinforced concrete utility crossings supporting future infrastructure along the M12 motorway corridor.

Installation of 3.1km reinforced concrete enveloper pipe infrastructure

Open cut trenching works across 17 motorway crossing locations

Dewatering, geotechnical, and spoil management operations

Site restoration and environmental control implementation

Project Technical Snapshot

Installation of reinforced concrete utility crossings along the future M12 motorway corridor.

17 Motorway Crossing Locations

Pipeline Infrastructure Installed

3.1km Reinforced Concrete Pipe Installation

Pipe Diameters

DN450 – DN1350 Class 6 RCP

[Outcome / Key Features]

Utility Crossings Delivered for Major Motorway Project

Outcome

Installation of 3.1 kilometres of reinforced concrete enveloper pipes for future utility crossings
Construction delivered across 17 motorway crossing locations along the M12 corridor
Works completed in accordance with TfNSW R11 and Sydney Water specifications
Testing, commissioning and restoration completed within the project program

Key Features

Installation of large diameter reinforced concrete pipes ranging from DN450 to DN1350
Construction undertaken using open cut trenching methods across the motorway alignment
Implementation of site-wide environmental management and spoil classification controls
Design and operation of dewatering systems including dam dewatering
Large-scale earthworks supported by heavy civil construction plant and equipment
Traffic and vehicle management plans implemented to coordinate pipe delivery and construction activities

[Environmental Responsibility]

Responsible construction and materials management

Environmental management measures were implemented during construction to manage spoil classification, protect surrounding land and maintain compliance with project environmental management plans. Controlled stockpiling and material testing ensured safe handling and disposal of excavated materials.

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M12 Motorway Utility Crossings

Major Civil Infrastructure

Enabling Infrastructure for the M12 Motorway