The No. 2 Bridge in Yanping village in Zhashui county in Northwest China’s Shaanxi province on Saturday. Around 8:40 p.m. on Friday, a 40-meter section of the bridge collapsed into the Jinqian River after a heavy rainstorm triggered a flash flood. Photo: Zhang Yuan/China News Service, VCG

The collapsed section of the bridge reveals that two of the original load-bearing pillars and half of the road surface had been swept away. Photo: CCTV.com

Rescuers use construction equipment to salvage Sunday. As of 7 p.m., seven submerged vehicles and 15 dead had been recovered. Photo: Xinhua

Rescuers search for the 31 missing individuals Sunday. The river’s water level had dropped, allowing them to locate vehicles more easily. Photo: Xinhua

A car is found under the collapsed bridge Saturday. Photo: CCTV.com

Rescuers search the river on boats Saturday. Photo: Zhang Yuan/China News Service, VCG

An aerial drone photo taken Sunday shows the 366-meter bridge, which is part of the Danfeng-Ningshan Expressway. Photo: Xinhua