Any further increase in capacity would only be possible by building a second tunnel through the city center.

They also agree to build a new bridge and tunnel.

Also, as I understand it, there will be no need to build tunnels in all the smaller countries.

The $100 million figure refers to the cost of building an entirely new tunnel.

For a while, he worked with construction crews building tunnels.

He also built a tunnel inside his house, leading to the desert, whose length was about 12 miles.

In 1988 work began to build a tunnel to complement the bridge.

So now the army is building tunnels under the fence, to be used by Palestinians.

Over the years, state officials have put the cost of building a tunnel as high as $7 billion.

In 1989, the debate to build a tunnel to the airport heated up again.