Engineering Investigation – Murray River Bridge
ARTC required a detailed engineering investigation of the Murray River Rail Bridge in Albury spanning the Murray River. The lattice frame through truss structure was constructed circa 1880 of wrought iron and required detailed inspection.
Challenge
ARTC required a detailed engineering investigation of the Murray River Rail Bridge in Albury spanning the Murray River. The lattice frame through truss structure was constructed circa 1880 of wrought iron and required a detailed inspection as well as load rating and fatigue assessment. The heritage structure's age and material (wrought iron) presented unique challenges for assessment.
Solution
Sterling undertook inspection works by utilizing a combination of access methods including hi-rail EWP, undercarriage bridge unit, UAV drone camera and underwater SONAR scanning. A full structural model was built using Spacegass Structural assessment software, which included all primary structural elements. The load rating assessment considered multiple load cases and corresponding actions in order to derive an accurate rating factor.
Deliverables
Detailed engineering investigation report for Murray River Bridge including structural condition assessment, material testing of timber and steel elements, load capacity evaluation against current rail loading standards, and recommendations for remediation works to extend service life.
Outcome
Sterling successfully delivered comprehensive inspection findings and assessment results for this circa 1880 heritage wrought iron bridge structure, providing ARTC with recommendations on the best management options for future long-term performance.
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