Where is the deepest road tunnel in the world?

Norwegian road infrastructure operator Statens Vegvegsen has officially opened world's deepest subsea tunnel, the 14.4km Ryfylke tunnel near Stavanger. The tunnel reaches a maximum depth of 292m below sea level. It is part of the Ryfast road project to link national highway 13 between Stavanger with Strand in Rogaland.



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Norwegian road infrastructure operator Statens Vegvegsen has officially opened world's deepest subsea tunnel, the 14.4km Ryfylke tunnel near Stavanger. The tunnel reaches a maximum depth of 292m below sea level. It is part of the Ryfast road project to link national highway 13 between Stavanger with Strand in Rogaland.

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The Channel Tunnel is 31.5 miles long or 50.45 km. That's the equivalent of 169 Eiffel Towers stacked on top of each other. 23.5 miles (37.9 km) of the Channel Tunnel is under the English Channel, making it the world's longest undersea tunnel.

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In cooperation with Rönesans Holding, the Heitkamp Construction Swiss GmbH tunnel and railroad construction specialists constructed the world's longest and deepest tunnel, the Gotthard Base Tunnel. This 57 kilometre-long tunnel lies at a depth of 2,300 metres.

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The Laerdal Tunnel in western Norway is the longest road tunnel in the world. It takes about 20 minutes to pass through the tunnel. Brightly colored lights placed every six kilometers help drivers stay alert.

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The longest tunnel in the United Kingdom is the Northern line at 27,800 metres (91,200 ft). This will be superseded in the 2020s by the 37,600-metre (123,400 ft) Woodsmith Mine Tunnel in North Yorkshire that will transport polyhalite from North Yorkshire to a port on Teesside.

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The lining of the tunnel is designed to last for 120 years. 18. It takes around 35 minutes to travel the length of the Channel Tunnel.

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Fritchley Tunnel is a disused railway tunnel at Fritchley in Derbyshire, England, which is believed to be the oldest surviving example in the world. The tunnel was constructed in 1793 by Benjamin Outram as part of the Butterley Gangroad, altered in the 1840s, and remained in use until the railway closed in 1933.

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