Etty Bay Road Crossing Upgrade

Projects /

Infrastructure

Improving flood resilience through detailed road crossing design

Project Owner

Cassowary Coast Regional Council

Location

Etty Bay

Completed

2025-2026

Detailed civil engineering design for the upgrade of Etty Bay Road, improving flood resilience, safety and long-term network reliability.

Project Overview

Civil IQ was engaged by Cassowary Coast Regional Council to deliver the detailed design for the replacement of the existing single-lane bridge on Etty Bay Road with a new two-lane culvert crossing.

The project included widening the road approaches, maintaining the existing level of flood immunity and coordinating the relocation of essential services including water and telecommunications infrastructure. Working within a constrained site, the design balanced hydraulic performance, road geometry and constructability while minimising impacts on surrounding properties.

Civil IQ provided geotechnical investigations, hydrologic and hydraulic assessment, road design, service relocations, approvals, bill of quantities and construction support to deliver a practical, cost-effective solution.

Challenges

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Maintaining traffic access throughout design and construction planning.
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Designing within a constrained creek corridor and existing road alignment.
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Managing flood behaviour while improving long-term road resilience.
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Balancing hydraulic performance, constructability and environmental considerations.

Outcomes

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Delivered a practical, constructable design supporting long-term flood resilience.
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Improved road safety and network reliability for the local community.
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Achieved an efficient engineering solution balancing hydraulic performance and construction costs.
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Supported successful project delivery through coordinated technical documentation.