Understanding Insar Measurement Through Comparison With Traditional Structural Monitoring - Waterloo Bridge, London

Widespread deterioration of ageing infrastructure and the recent collapses of bridge structures highlight the vital importance of structural health monitoring. Satellite Interferometric Synthetic Aperture Radar (InSAR) provides remote measurements at millimetre scale over large areas, but the interpretation of such data into civil engineering contexts remains more than a trivial task. This work presents the monitoring of Waterloo Bridge to investigate the potential for InSAR to be used to support bridge management activities. Corner reflectors and target prisms for automated total station measurements have been installed at key points of interest as part of a wider structural monitoring system, and displacement data from traditional and satellite monitoring systems are compared and studied.