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Engineered Nature Crossings

 

Precast Arch Solutions
Project Overview

Location: Far North Queensland

Sector: Environmental Infrastructure

Solutions Used: Precast Bebo Arch Units
 

Humes Bebo® Precast Concrete Arch system
Humes Bebo® Precast Concrete Arch

Background

Fauna and Flora Crossings for Environmentally Sensitive Areas

The Humes Bebo Precast Concrete Arch system is increasingly used across Australia for fauna and flora crossings. Its modular design allows for fast and safe installation, reducing site disturbance, an essential benefit in environmentally sensitive areas. Available in every state and territory, the system can be custom-designed to meet a wide range of project needs.

Key Challenge

Balancing Ecological Sensitivity with Construction Efficiency

Fauna and flora crossings require solutions that minimise environmental impact during construction. Traditional in-situ methods can extend project timelines, create unnecessary site disturbance, and increase long-term maintenance demands. Projects needed a durable, low-maintenance system that could be rapidly deployed while meeting strict environmental requirements.
 

Humes Bebo® Precast Concrete Arch | Cassowary
Humes Bebo® Precast Concrete Arch system

Delivering the Solution

Precast Arches Designed for Durability and Sustainability

Precast concrete provided a faster, safer, and more consistent solution compared to in-situ alternatives. The Humes Bebo Arch can be tailored in size and finish, with fittings incorporated during production for project-specific enhancements.

To support sustainability targets, Humes incorporates up to 50% supplementary cementitious materials (SCMs) including flyash and slag reducing embodied carbon while maintaining long-term durability. This approach ensures the Bebo Arch delivers strong environmental performance alongside efficient construction outcomes.