World’s deepest subsea tunnel opens in Norway (2024)

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World’s deepest subsea tunnel opens in Norway? ›

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.

Reaching 292 meters deep, the Ryfast tunnel system also holds the title of the world's deepest undersea tunnel. Norway's tunnels under the sea actually hold the top four spots on the list of the deepest subsea tunnels in the world: Ryfast tunnels in Norway = maximum depth of 292 meters.

Road. Rogfast tunnel in Norway – construction having started in 2018, at 27 km length, 392 m depth, it will be the longest road tunnel and deepest undersea tunnel in the world.

The Seikan Tunnel is the world's longest undersea tunnel by overall length (the Channel Tunnel, while shorter, has a longer undersea segment).

Channel Tunnel, France

It is a 37.9 km tunnel that connects the British towns of Folkestone and Pas-de-Calais in northern France.

The infrastructure plans will cost Norway no less than $47 billion and would spawn amazing solutions for crossing the fjords. Take, for example, the $2bn Boknafjorden tunnel, a 27-kilometre-long subsea tunnel build 390 meters below the sea level. It will be the longest, deepest tunnel in the world.

1. Seikan Tunnel. Entrance to the Seikan Tunnel from the Honshu side. Linking Japan's Honshu and Hokkaido islands, the Seikan Tunnel is the world's longest undersea rail tunnel (by overall length).

The Chesapeake Bay Bridge Tunnel is an underwater tunnel in Virginia connecting Virginia Beach to Virginia's Eastern Shore.

The Ted Williams Tunnel interface in East Boston between the land-based approach and the underwater section is 90 feet below the surface of Boston Harbor, the deepest such connection in North America.

The Chesapeake Bay Bridge Tunnel is an underwater tunnel in Virginia connecting Virginia Beach to Virginia's Eastern Shore.

What is the Swedish underwater tunnel? ›

The Øresund Bridge opened in 2000 and since then thousands of cars and trains have crossed the strait between Denmark and Sweden. The bridge consists of both a bridge, a tunnel and the artificial island Peberholmen. Combined it adds up to a total length of 15.9 km.

The Fehmarnbelt Tunnel will be the longest combined rail and road tunnel anywhere in the world when it is completed in 2029. This €10 billion project - which crosses a stretch of the Baltic Sea known as the Fehmarn Belt - will connect Rødbyhavn on the Danish island of Lolland and Puttgarden in northern Germany.

The Channel Tunnel (French: Tunnel sous la Manche), sometimes referred to informally as the Chunnel, is a 50.46-kilometre (31.35 mi) undersea railway tunnel, opened in 1994, that connects Folkestone (Kent, England) with Coquelles (Pas-de-Calais, France) beneath the English Channel at the Strait of Dover.

China🇨🇳🇨🇳 has the most number of tunnels in the world. There are 16229 tunnels in China. The largest tunnel in China is Bohai Strait Tunnel. After China, Japan🇯🇵🇯🇵 has the most number of tunnels in the world.

It reaches from the Stad peninsula in Sogn og Fjordane in the northwest to the Oslofjord in the southeast. The trench is between 50 and 95 kilometres (31 and 59 miles) wide and up to 700 metres (2,300 ft) deep.

The Oslofjord Tunnel is a 7,306-meter (23,970 ft) long subsea tunnel which constitutes part of European route E134 and is hence part of the Trans-European road network. The tunnel traverses below Drøbaksundet of the Oslofjord, reaching a maximum depth of 134 meters (440 ft) below mean sea level.