The Zishui Grand Bridge, a critical section of the Changde-Yiyang-Changsha High-speed Railway, had been completed on April 15. The bridge was constructed by the China Railway No.5 Engineering Group. Its completion laid the foundation for the early opening of the Changde-Yiyang-Changsha High-speed Railway. The railway has a total length of 157 km, and the maximum designed speed of the train for the railway is 350km/h. It is a key part of China’s "eight vertical and eight horizontal" high-speed rail network. (Photo/Guo Liliang)