Chongqing's Huangjuetuo Yangtze River Bridge completed its main span on Wednesday following the precise placement of its final steel girder. 

The 1,260-meter bridge has more than 33,000 tonnes of steel in its main structure. As the world's largest-span road-rail suspension bridge under construction, it is a key part of Chongqing's urban transport network.

The milestone paves the way for the remaining construction work.