Bridges

The integration of Unmanned Aerial Vehicles (UAVs) into bridge inspection processes has significantly improved accuracy, efficiency, and safety in infrastructure asset management. Transport for New South Wales (TfNSW) has conducted an extensive multi-year study to evaluate UAV applications, particularly in confined spaces and Global Positioning System (GPS) denied environments.

This paper presents an overview of UAV-based inspections, emphasising the adoption of artificial intelligence (AI) for defect detection, cost-benefit analyses, and comparisons with traditional methods. A cloud-based data management framework is also introduced, demonstrating how streamlined workflows enhance decision-making.

The UAV bridge inspection program was recognised as a finalist in the 2023 National Infrastructure Awards, highlighting its increasing impact on modern infrastructure management. By aligning with TfNSW’s Bridge Inspection Procedure Manual¹ and Bridge Asset Management Policy², the program complies with established standards while exploring predictive maintenance and digital twin technology. Practical case studies, along with global advancements, implementation strategies, and cost-effectiveness data, underscore the importance of UAV technology in contemporary bridge asset management.