Photo taken on July 13, 2017 shows the construction site of a grand highway-railway combined bridge in Sanmenxia of central China's Henan Province. The 5663-meter-long bridge over the Yellow River, which connects Sanmenxia and Pinglu County in north China's Shanxi Province, is expected to be finished by the end of 2018. (Xinhua/Zhu Xiang)
