Unparalleled experience in the forensic investigation of buried arch structures, abutments and retaining walls, ranging from greater than expected cracking and excessive deflections through to total collapse.

Significant projects include:

• Arch structures in the USA, Canada and Japan experiencing excessive longitudinal deflections under high fills.
• Deflections of Heathrow Roundabout arch, UK.
• Collapse of UK arch structure due to incorrect backfill procedures
• Severe shear cracking in an arch culvert structure at Wilton, NSW