ABSTRACT
Bridge engineers specifying, designing and installing Structural Health Monitoring (SHM) systems need to be able to provide reliable information over the very long design lives expected of critical infrastructure assets such as bridges. It is essential that asset managers can have confidence that any significant anomalies or changes in the performance of the structure will be detected. The resources and planning needed to keep such systems functioning is rarely reported as many research deployments are of short duration. In 2007 a wireless sensor network was installed in the Hessle Anchorage chambers of the Humber Bridge in the United Kingdom to monitor parameters that could affect the durability of the main suspension cables of the bridge. This deployment was part of a wider project aimed at examining the potential for using wireless network systems to monitor infrastructure assets. The initial planned duration of the project was six months. It has however now been in place and operational for over ten years. This paper discusses the maintenance undertaken, modifications required, and long-term performance of this installation along with the significance of the long-term data set that has been collected.
