Railway-expressway bridge with world's largest span under construction in east China

Photo taken on Dec. 28, 2017 shows the No. 28 main pier construction site of Shanghai-Nantong Yangtze River Bridge in Nantong, east China's Jiangsu Province. The Shanghai-Nantong Yangtze River Bridge, main span of which is 1,092 meters, is a cable-stayed railway-expressway bridge with the world's largest span. The middle pylon of the No. 28 main pier was successfully joined here Thursday. (Xinhua/Xu Congjun)