Difference between revisions of "Tunnel"
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| − | A tunnel is a passageway through or under an obstruction, like a mountain. | + | A '''tunnel''' is a passageway through or under an obstruction, like a mountain. |
The [[world's longest tunnel]] is 57 kilometers (around 35 miles) through the [[Swiss Alps]], completed after 6 decades of work in 2010,<ref>[http://www.washingtontimes.com/news/2010/oct/15/joyous-swiss-celebrate-longest-tunnel-breakthrough/ Joyous Swiss celebrate longest tunnel]</ref> although it is not open to traffic yet. | The [[world's longest tunnel]] is 57 kilometers (around 35 miles) through the [[Swiss Alps]], completed after 6 decades of work in 2010,<ref>[http://www.washingtontimes.com/news/2010/oct/15/joyous-swiss-celebrate-longest-tunnel-breakthrough/ Joyous Swiss celebrate longest tunnel]</ref> although it is not open to traffic yet. | ||
The longest tunnel in operation is Japan's [[Seikan Tunnel]]. | The longest tunnel in operation is Japan's [[Seikan Tunnel]]. | ||
Revision as of 01:37, June 28, 2016
A tunnel is a passageway through or under an obstruction, like a mountain. The world's longest tunnel is 57 kilometers (around 35 miles) through the Swiss Alps, completed after 6 decades of work in 2010,[1] although it is not open to traffic yet. The longest tunnel in operation is Japan's Seikan Tunnel.