The 76-mile Bohai Strait Tunnel will cost over $30 billion and take up to 15 years to build, with 56 miles running underwater between Dalian and Yantai.
The Bohai Strait Tunnel in China will stretch 76 miles and cost over £20 billion, slashing the journey between Dalian and ...
Tunnels have long been a testament to human engineering, bridging divides created by nature. The Gotthard Base Tunnel in Switzerland and Japan's Seikan Tunnel are marvels of engineering. The first ...