A 7.5-mile round-trip six-lane main road connecting ... that the world’s longest underwater tunnel could be fully promoted.

Here, we’ve curated a list of the five longest underwater tunnels ... The Qingdao Jiaozhou Bay Tunnel is a 9.47-kilometer (5.9 miles) tunnel under the water in China. It connects Qingdao City ...

The project will be 11.1 miles long, making it the world’s longest underwater road and rail tunnel. Construction on what will become the world’s longest-ever underwater road and rail tunnel ...

SHANGHAI--(BUSINESS WIRE)--China's latest intelligent shield tunneling ... the Chongtai Yangtze River Tunnel is the world's fastest underwater tunnel. It covers 14.25 km in total, including ...

The world's longest high-speed train, also in China, is the Beijing ... when on October 22 one of the tunnels of the line broke through the seawall, enabling underwater construction to begin.

This summer, China is ... a 34-mile highway that connects three major cities across the country. The bridge features six lanes and four tunnels, one of which is underwater. It's an impressive ...