Dadu River Bridge on Ya 'an-Kangding Expressway

The Dadu River Bridge on the Ya 'an-Kangding Expressway, a steel-concrete composite beam suspension bridge with a main span of 1,100 meters, has to overcome world-class technical challenges such as high-intensity seismic areas, disordered canyon wind field conditions, geological fragmentation of high and steep slopes, and extremely large suspension bridge spans. It is hailed as the "First Bridge of Sichuan-Tibet".