Xinhua news agency inform 10 Tunnels on Duba Expressway excavated. 10 tunnels 86.7% of tunnels on Dyba Expressway.
Duba Expressway important expressway project in Guangxi and China's largest expressway design and construction general contracting (EPC) projects. 119.129 kilometers. Budget 16.546 billion yuan.
Bridge-tunnel ratio of Duba Expressway is 46.25%. Duba Expressway finish in 2021.
http://big5.xinhuanet.com/gate/big5/www.gx.xinhuanet.com/newscenter/2020-08/11/c_1126351904.htm
都巴高速10座隧道實現全幅貫通-新華網
big5.xinhuanet.com都巴高速10座隧道實現全幅貫通---