Construction of underground utility tunnel completes in China's Gansu

Technicians work at the underground utility tunnel in Baiyin City, northwest China's Gansu Province, May 29, 2019. The 2.238 billion yuan (about 324 million U.S. dollars) project, a 26.25 km-long tunnel capable of installing 8 kinds of utility pipes, was completed recently. (Xinhua/Sadat)