A worker is busy at the construction site of the Yellow River bridge in Mengzhou, central China's Henan Province, June 20, 2020. The construction work of the Yellow River bridge on National Highway No. 207 is under way. With its main bridge reaching 3,007 meters long and a designed speed of 80 kilometers per hour, the bridge is expected to be completed by 2021. (Xinhua/Hao Yuan)
