Queensferry Crossing, UK: durability, maintenance, inspection and monitoring

The new Queensferry Crossing in Scotland, UK, is a durable structure designed to minimise degradation and withstand the challenging environment of the Forth estuary. High-performance materials, rigorous compliance testing and advanced protective measures have been employed to this end. An effective, integrated monitoring, inspection and maintenance system was developed to facilitate early intervention and maintain the bridge in a sustainable condition. A range of access facilities, including motorised gantries, shuttle trains and mechanical lifts have been provided to ensure safe and effective access, within touching distance, to all internal and external surfaces. An advanced structural health monitoring system has been installed to monitor the condition and integrity of the bridge, allowing rapid evaluation of structural integrity after extreme events and the identification of changes in condition over time.