Top 10: World’s longest road tunnels ...

Add Yahoo as a preferred source to see more of our stories on Google. 00 longest tunnels opener laerda Tunnels are used to carry traffic through some of the most extreme terrain on the planet and they ...

Stretching 18km between Denmark and Germany, this €7bn immersed tunnel is the world’s longest road and rail link. By 2029, it ...

Penetrating seawater carries bacteria that form colonies – biofilm. The bacteria attack the concrete that is supposed to prevent stones from loosening from the tunnel walls. The concrete becomes ...

Mill Road tunnel is due to undergo safety improvements after an MP pushed for residents’ concerns.

Rock excavation for the Anakkampoyil–Kalladi Tunnel Road project connecting Kozhikode and Wayanad begins on March 6, 2026, ...

When seawater penetrates concrete in road tunnels, a biofilm is formed that breaks down the concrete. This can lead to high costs and the risk of damage if stone and concrete drop from the tunnel roof ...