Location: England
Severn Crossing is an extensive pipe bridge structure forming part of the Elan Valley Aqueduct, comprising masonry arches and abutments supporting an arched steel superstructure over the River Severn. Constructed in 1902, the structure carries strategic water pipelines and remains a critical component of the aqueduct system. McFarland Consulting Ltd were appointed to undertake a Principal Inspection of the structure and associated pipework.
MCL undertook detailed inspections of the masonry substructure, steel superstructure and pipelines. Internal inspections of the pipework were carried out on foot, while external inspections were facilitated using a team of rope access technicians to safely access the elevated steelwork and masonry elements.
Specialist testing was undertaken as part of the inspection, including ultrasonic thickness measurements of the pipelines, pit depth profiling, non-destructive weld testing and paint flake analysis. Based on the findings, MCL developed a coating specification to address corrosion risks associated with the steel superstructure.
The inspection and testing programme provided the Client with a clear understanding of the condition and performance of the crossing. The outputs support targeted maintenance planning and help safeguard the long-term integrity of this key water conveyance asset.