Verifying the structural safety of the Olympic canopy at the Eton College Rowing Centre.
At Structural Repairs, we are fortunate to work in some of the UK’s most iconic settings. One of our recent projects took us to the spectacular Dorney Lake in Windsor – home to the London 2012 Olympic rowing events. Our task was to deploy advanced non-destructive testing (NDT) to assess the weld integrity and structural safety of the waterside canopy system, ensuring it could continue to serve athletes and spectators safely for years to come.
The Rowing Centre features an impressive canopy supported by a complex network of hollow steel members. Externally, the paintwork appeared flawless. However, water ingress over a decade of exposure to a high-humidity environment had created a very different picture internally. Condensation and trapped moisture had begun attacking the internal root of the structural welds and eating away at the steel thickness, raising serious questions about long-term load-bearing capacity. By the time visible damage appears on the surface of a structural connection, catastrophic failure may already be imminent.
Volumetric Weld Scanning & Metal Thickness Mapping
Rather than relying on basic visual inspections, we deployed a suite of advanced NDT technologies to measure the true state of the structural steelwork and its critical connections without damaging the protective coatings.
The Testing Methodology
- Phased Array Ultrasonic Testing (PAUT): Used to look right through the critical structural joints, mapping the internal geometry of the welds to detect hidden root corrosion, lack of fusion and early-stage fatigue cracking.
- Ultrasonic Thickness Gauging (UTG): High-frequency sound waves were deployed to measure the remaining wall thickness of the hollow steel sections, providing precise data even where corrosion was entirely hidden.
- Magnetic Flux Leakage (MFL): Used to detect microscopic pitting and wall loss across broader sections of the steel framework.
Together, these techniques provided a complete 3D profile of the canopy’s structural health without causing any disruption to the daily operation of the rowing centre.
Definitive Data for Proactive Maintenance
These volumetric scanning techniques gave the structural engineers a complete, verifiable understanding of the canopy’s health. We successfully identified areas of internal weld degradation and wall thinning before they became safety-critical.
This definitive data allowed the facility managers to implement highly targeted repairs – such as localised structural reinforcement and water-ingress prevention – rather than facing the massive disruption and cost of a full canopy replacement. The project demonstrated that proactive weld inspection and internal thickness scanning are absolutely essential for extending the service life of public sports venues.
Safeguard the Future of Your Sporting Infrastructure
The challenges seen at Dorney Lake are echoed in stadiums and sports grounds across the country. Do not rely on appearances – pristine paintwork can hide catastrophic internal weld failure. Protect your public venues and extend their lifespan with verifiable NDT data.