A worker works at the rotation construction site of a grand bridge of Menghua Railway in Nanyang City, central China's Henan Province, Aug. 14, 2018. The grand bridge over Nanjing-Xi'an railway completed a rotation construction on Tuesday. The 879-meter grand bridge under construction is a part of the Menghua Railway. As a national strategic coal transport route from North China to South China, Menghua Railway starts from Erdos in Inner Mongolia to Ji'an in Jiangxi province. (Xinhua/Li An)