Closure of main arch of Tianshenggang Channel Bridge finished

Photo taken on Oct. 22, 2017 shows the Tianshenggang Channel Bridge, part of a large bridge crossing the Yangtze river and linking Zhangjiagang and Nantong of east China's Jiangsu Province. Closure of the main arch of Tianshenggang Channel Bridge was finished on Sunday. The main span of the bridge is 336 meters. It is the world's largest long-span heavy-duty highway and railway steel arch bridge. (Xinhua/Xu Congjun)