MONITORING THE DYNAMIC BEHAVIOUR OF THE MERLYNSTON CREEK BRIDGE USING INTERFEROMETRIC RADAR SENSORS AND FINITE ELEMENT MODELLING BIDUR KAFLE School of Engineering, Faculty of Science, Engineering and Built Environment, Deakin University, Geelong, Victoria 3220, Australia bidur.kafle@deakin.edu.au LIHAI ZHANG * Department of Infrastructure Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia lihzhang@unimelb.edu.au PRIYAN MENDIS Department of Infrastructure Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia pamendis@unimelb.edu.au NILUPA HERATH Department of Infrastructure Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia nherath@unimelb.edu.au MAIZUAR MAIZUAR Department of Infrastructure Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia mmaizuar@student.unimelb.edu.au COLIN DUFFIELD Department of Infrastructure Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia colinfd@unimelb.edu.au RUSSELL G. THOMPSON Department of Infrastructure Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia rgthom@unimelb.edu.au Received Day Month Year Revised Day Month Year The efficient service of bridges is essential if our transport networks are to contribute to economic growth and provide important social benefits. It is imperative that the bridges remain in an acceptable condition and are maintained throughout their life to prevent damage that may lead to major traffic disruptions and economic losses. Damage to bridge structures accumulates as a result of daily traffic loading. Therefore, continuous structural health monitoring of bridges is crucial and should be performed periodically. In this paper, an innovative methodology for monitoring the dynamic behaviour of bridges has been developed by using interferometric radar sensors, Weight-In- Motion (WIM) technology and Finite Element modelling. Using the Merlynston Creek Bridge in Melbourne, Australia. The findings demonstrated that the proposed methodology can both efficiently * Corresponding author.