TheBridgeEng · Learning from Failure

Hongqi Grand Bridge (红旗特大桥) (2025)

China · Flood / debris · Y-shaped rigid-frame (balanced cantilever), 220 m main span, 172 m pier

Reservoir impoundment at Shuangjiangkou raised groundwater in the right-bank slope; the survey firm had faked required borehole counts…

Read the full case — mechanism, cause chain, code changes →

More Flood / debris cases

Trishuli / Bhote Koshi valley bridges (Langtang Lirung glacier collapse) (2026) · FM 481 Nueces River Bridge (2026) · Sataso Bridge (Mampong–Ejura road) (2026) · Phú Thiện suspension footbridge (2025) · Mataian River Bridge (馬太鞍溪橋), Provincial Highway 9 (2025) · Khyber Pakhtunkhwa monsoon bridges (Buner, Swat, Swabi) (2025)

One of 300 forensic bridge-failure case studies at TheBridgeEng — free, for engineers.