World's longest heavy-duty railway under construction in Yueyang City, central China

Photo taken on Dec. 24, 2017 shows the construction site of a railway bridge over the Dongting Lake, the second-largest freshwater lake in China, in Yueyang City, central China's Hunan Province. The 1,290-meter bridge is an important part of the world's longest heavy-duty railway for coal transport. The 1,837-km railway is still under construction and is designed to link the coal-rich western Inner Mongolia Autonomous Region with Ji'an City in east China's Jiangxi Province. The railway line is scheduled for operation in 2020. [Photo/Xinhua]