Ship tunnel (big ships)

[keble]

"The Norwegian government has backed an ambitious plan to create the world's first ship tunnel. But why has nobody tackled this engineering feat before?

 

At 45m high (148ft) and 36m (118ft) wide, the 1.7km (one mile) long Stad Ship Tunnel will be the only one of its kind - a passage through solid rock able to accommodate 16,000 tonne freight and passenger ships."

 

More at

 

http://www.bbc.co.uk/news/magazine-22157079

[IanM]

http://www.canalworld.net/forums/index.php?showtopic=56016

[Pluto]

"The Norwegian government has backed an ambitious plan to create the world's first ship tunnel. But why has nobody tackled this engineering feat before?

 

At 45m high (148ft) and 36m (118ft) wide, the 1.7km (one mile) long Stad Ship Tunnel will be the only one of its kind - a passage through solid rock able to accommodate 16,000 tonne freight and passenger ships."

 

More at

 

http://www.bbc.co.uk/news/magazine-22157079

The Rove Tunnel in France is not quite this size, but is 72 feet wide and was used by U-boats in the war.

[Guest]

The Rove Tunnel in France is not quite this size, but is 72 feet wide and was used by U-boats in the war.

 

and according to the BBC the longest canal tunnel in the world....now closed to navigation sadly apparently.

[Pluto]

and according to the BBC the longest canal tunnel in the world....now closed to navigation sadly apparently.

Depends upon what you call a canal tunnel, but with a combined length of around 50 miles, the underground workings at Worsley must be the longest.