A view of the construction site of the Lianyungang-Xuzhou high-speed railway line in Lianyungang, East China's Jiangsu Province, on Monday. (Photos: VCG)

The 180-kilometer railway line has been underway since July 13 and its construction is estimated to cost 28.17 billion yuan ($4.1 billion).

Trains can run at a designed speed of 350 kilometers per hour after construction is completed. It is expected to open to passengers by December 2020.