North Coast Line Bridges

NSW North Coast Line, NSW.

Replacement road overbridges over one of Australia's busiest rail corridors, combining rapid installation, minimal rail disruption and long-term performance.

North Coast Line Bridges

Delivering critical bridge infrastructure above a live railway without disrupting the network below.

Working alongside ARTC, Martinus, and BK Engineering, InQuik® supplied three modular bridge structures, Berrico 1, Berrico 2, and Mount Pleasant Bridge along the NSW North Coast Line, enabling efficient installation within tightly controlled rail possession windows while maintaining safe and reliable rail operations.

Dimensions
(3) 18.5m
Client
Australian Rail Track Corporation (ARTC)
Products
IQ1000
Type
Simply Supported Single-Span Bridges
Location
NSW North Coast Line, NSW.
Projects | North Coast Line Bridges
Projects | North Coast Line Bridges

Key project points

Maintained Road Operations

Bridge installations were completed during carefully planned rail possession windows, minimizing disruption to passenger and freight services.

Rapid Construction

Each bridge was installed in approximately two weeks using a small installation crew, accelerating project delivery.

Minimal Temporary Works

The self-supporting InQuik system eliminated the need for extensive scaffolding or temporary propping above live rail infrastructure.

Future-Ready Design

Simply supported bridge configurations allow for future removal or modification should additional rail clearance be required.

Customized Rural Access

Bridges were designed to accommodate heavy agricultural vehicles, trucks, and local traffic, with specialized barrier solutions developed for nearby cattle farming operations.

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The location

The project was delivered along ARTC's NSW North Coast Line, a 780-kilometer rail corridor connecting Sydney and Brisbane. As one of Australia's most important freight and passenger rail routes, the line supports regional communities, industry, and interstate transport movements.

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The replacement overbridges were constructed at three separate locations along the corridor. Maintaining uninterrupted rail operations throughout delivery was a critical requirement of the project

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Challenges

Working above an active railway significantly restricted available construction methods and site access. Bridge installations could only occur during tightly controlled rail possession periods, with some works completed during overnight windows lasting as little as three hours.

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The bridges also needed to satisfy demanding rail infrastructure requirements, including train collision loading criteria, while remaining practical and cost-effective for rural road users. Coordinating multiple stakeholders and maintaining program certainty within these constraints required careful planning and execution.

How we helped

InQuik supplied the design, manufacture, and installation support for three modular bridge structures specifically tailored for construction above an operational rail corridor. By shifting much of the construction process into a controlled off-site manufacturing environment, the project significantly reduced on-site activities and installation risks.

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Lightweight modular components enabled efficient bridge lifts while eliminating the need for temporary supports beneath the structures. The completed bridges deliver durable, long-term infrastructure that meets rail safety requirements while supporting local traffic, agricultural operations, and future network upgrades.

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