A section of the newly inaugurated Hongqi Bridge in southwest China’s Sichuan province collapsed and plunged into a river following a massive landslide on Tuesday afternoon. Dramatic visuals circulating on social media captured the moment the bridge’s concrete structure disintegrated as the mountainside beneath it gave way.
Bridge collapse caught on camera
Footage shared on X (formerly Twitter) shows the hillside beginning to slide, unleashing a thick cloud of dust and debris before massive chunks of soil and rock engulf the bridge’s foundation. Within seconds, concrete pillars of the structure tilt and crumble, sending a large portion of the 758-metre-long bridge crashing into the river below.
Despite the scale of destruction, no casualties have been reported so far, according to state media and local authorities.
Early warning prevented a major tragedy
According to Reuters, local authorities had closed the bridge to traffic on Monday after cracks appeared on nearby slopes and terrain shifts were detected on the adjacent mountain. Officials said these precautionary measures, taken ahead of the disaster, likely prevented a large-scale tragedy.
However, conditions on the mountainside worsened the following day, triggering a powerful landslide that destroyed a major section of the Hongqi Bridge and its approach road.
Geological instability suspected
Preliminary assessments suggest that the collapse resulted from geological instability in the steep, mountainous region. The Sichuan province, known for its rugged terrain, has a long history of landslides, particularly during the wet season.
Experts believe the combination of unstable soil, seismic vulnerability, and continuous slope movement contributed to the failure. Authorities have launched a detailed technical investigation to determine whether additional structural or engineering factors were involved.
“The collapse highlights the challenges of constructing large-scale infrastructure projects in geologically fragile zones,” an unnamed geotechnical expert told local media.
Key transport link between Sichuan and Tibet
The Hongqi Bridge, a crucial section of the national highway connecting central China to Tibet, was seen as a significant infrastructure milestone for the region. Built by the Sichuan Road & Bridge Group, the bridge had only recently been completed and opened to the public.
Its collapse has now disrupted transportation along the busy highway, prompting diversions and road closures. Emergency teams and geologists are currently working in the area to assess further risks and stabilise the surrounding slopes.
Government response and safety review
The Sichuan provincial government has ordered a comprehensive safety review of similar infrastructure projects located in mountainous regions. Officials have also pledged to strengthen real-time geological monitoring systems and emergency response mechanisms to prevent future incidents.
Local authorities have reassured residents that reconstruction will be prioritised once the terrain is stabilised and the investigation is complete.
A reminder of China’s infrastructure challenges
While China has rapidly expanded its infrastructure network in recent years, incidents like the Hongqi Bridge collapse underscore the vulnerabilities associated with building in geologically sensitive zones. Experts have called for more stringent geological surveys and advanced engineering safeguards in future projects.
The investigation findings are expected to guide new safety protocols for bridges and highways built across the country’s mountainous western regions.