TheBridgeEng · Learning from Failure
United Kingdom · Construction stage · 3 deaths · post-tensioned RC skew deck span (28 m) on lattice-truss falsework over trestle towers, motorway viaduct
The two-layer steel I-beam grillage between the trestle towers and the lattice trusses was undersized, with a factor of safety of only about 1.3 even under ideal vertical load, and the design check did not catch it…
Read the full case — mechanism, cause chain, code changes →
Berakhal River bridge, Mohanpur (Hailakandi) (2026) · Hathli Khad truss span (Hamirpur bypass, NH-103) (2026) · Llewellyn Estes Bridge (Stillwater Ave, Old Town) (2026) · Pyeonggang-cheon Bridge girders (부산 에코델타시티) (2026) · Betwa River bridge (Hamirpur, UP) (2026) · Seosomun Overpass demolition (서소문고가차도) (2026)
One of 300 forensic bridge-failure case studies at TheBridgeEng — free, for engineers.