This project involved the development of a guideline for bridge owners on managing the risk of bridge flooding, scour and resilience due to floods and an update to the Austroads Guide to Bridge Technology Part 8: Hydraulic Design of Waterway Structures (AGBT08) . The guideline provides a framework for managing risks to bridge infrastructure caused by floods, focusing on improving resilience, operational performance safety. It aims to equip engineers, asset managers, and decision-makers with strategies to address flood-related challenges, particularly those associated with scour and structural vulnerability. The guideline highlights proactive measures such as pre-flood inspections, prioritising critical bridges, and real-time monitoring during floods. Post-flood recovery focuses on condition assessments, load testing, and criteria for safe reopening. AGBT08 was updated to incorporate updated design related knowledge and guidance on hydrology and hydraulics in alignment with Australian Rainfall and Runoff 2019.