青函トンネルも老朽化の問題が深刻らしいの英語

an Japanese undersea tunnel called {Seikan tunnel}

The new tunnel is twice as long as the old one.

The tunnel is a marvel of engineering skill.

I hear they have a lot of problems with the tunnels in New Zealand.

Look, there's a castle through the tunnel.

the tunnel reduced congestion at that intersection

The train passed through several tunnels.

a submarine tunnel connecting England and France called the Chunnel

After a period of many years' sustained effort, the tunnel was at last completed.

The Hakkoda Tunnel, however, will lose its title soon.

This tunnel is twice as long as that one.

Construction of the main tunnel started in 1998.

Suddenly, the tunnel lights went off.

A tunnel caves in.

The tunnel was completed in 1975.

The Ministry of Land, Infrastructure, Transport and Tourism has ordered nationwide safety inspections of other tunnels with the same ceiling structure as that of the Sasago Tunnel.

The tunnel caved in because of the earthquake the other day.

But this was apparently not enough to find the problems in the tunnel's ceiling.

The Hakkoda Tunnel has now become the third longest tunnel in the world after two undersea tunnels: the 53.9-kilometer Seikan Tunnel in Japan and the 50.5-kilometer Eurotunnel under the English Channel.

It took six and a half years to complete the tunnel.

The new tunnel is 13.6 kilometers in total length.

ICOMOS has proposed that a tunnel should be built instead of a bridge.

The new tunnel will link Britain and France.

Hida Tunnel Breakthrough

the act of boring a tunnel

The new line runs through the world's longest undersea tunnel, the 54-kilometer Seikan Tunnel under the Tsugaru Strait.

a series of connected underground tunnels occupied by rabbits

blast a tunnel through the Alps

The train entered a tunnel.

A tunnel is driven through （a mountain）.