Structural Health Monitoring (SHM) is the integration of a system of sensors, model validation, system identification, monitoring strategies, data mining, data management and interpretation of the data for decision-making purposes. The term civionics has been coined to denote the integration of civil structures with electrophotonic sensors for the purpose of determining the health of the structures.The use of SHM requires the integration of several different disciplines, including civil engineering, electrical engineering and physics. When experts in different fields come together for an SHM project, communication can be difficult, each expert not necessarily understanding the basics of the others' fields of expertise. This book aims to fill the interdisciplinary gap for engineers in relation to the SHM of bridges, providing the necessary information in one volume.