What is the deepest tunnel?

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.



People Also Ask

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.

MORE DETAILS

“The first infrastructures of this type were built at the end of the 19th century, and at present there are nearly 200 underwater tunnels built worldwide. Although some are used for water and electricity supply, most are used to house road or rail connections.

MORE DETAILS

The 5,727-metre (18,789 ft) long tunnel runs beneath the Bremsnesfjorden, reaching a depth of 250 metres (820 ft), making it one of the deepest undersea tunnels in the world. Construction began in 2006, and the tunnel opened on 19 December 2009, later than initially estimated.

MORE DETAILS

In 1825, French engineer Marc Brunel started work on the Thames Tunnel, the very first underwater tunnel anywhere in the world. Beset by financial difficulties, frequent flooding and several deaths, the project wasn't completed until 1843.

MORE DETAILS

You're 180 feet underground. Despite the weather on the surface, it can get chilly down there!

MORE DETAILS

The Michigan Central Railway Tunnel is a railroad tunnel under the Detroit River connecting Detroit, Michigan, in the United States with Windsor, Ontario, in Canada. The U.S. entrance is south of Porter and Vermont streets near Rosa Parks Boulevard.

MORE DETAILS

The world's longest underway highway tunnel is Norway's 14.3-kilometer twin-road Ryfast tunnel, which runs between the city of Stavanger and the municipality of Strand. The underwater tunnel portion of the Tokyo Bay Aqua-Line, a vehicle highway that travels under Tokyo Bay, is 9.6 kilometers.

MORE DETAILS

The historical Burro Schmidt Tunnel is located in the El Paso Mountains of the northern Mojave Desert, in eastern Kern County, southern California. NRHP reference No. It is a 0.5-mile (0.80 km) mining tunnel dug with hand tools and dynamite over a 38-year period by William Burro H. Schmidt (1871–1954).

MORE DETAILS

Cappadocia city, located in central Turkey, is home to no less than 36 underground cities, and at a depth of approx. 85 m, Derinkuyu is the deepest.

MORE DETAILS