Top 5 Deepest Underwater Tunnels In The World


In the hurry of our everyday routine, we tend to forget that there are several stunning architectural and engineering masterpieces around us. One of these impressive masterpieces is tunnels, underwater tunnels to be exact. So without further ado, here are the Top 5 Deepest Underwater Tunnels In The World.


1. Ryfylke tunnel

According to nynas.com, the Ryfylke tunnel, which connects two municipalities in southern Norway, has been the world’s deepest tunnel with a maximum depth of 292m or 958ft below sea level. Additionally, we can also visualize the tunnel’s depth to be twice the height of The Great Pyramid of Giza, as per themeasureofthings.com.


2. Eiksund UNDERSEA Tunnel

Located in Norway, The Eiksund tunnel is currently the world’s second deepest underwater tunnel, as per roadtraffic-technology.com. It opened to traffic in 2008 to connect the Norwegian mainland to Hareidlandet Island. And, it reaches a maximum depth of 287m or 942ft which is about three times the height of Big Ben, according to themeasureofthings.com.


3. HITRA TUNNEL

According to gonorway.no, the Hitra tunnel opened in 1994 to connect the Norwegian mainland to Hitra Island. Moreover, it is also the world’s third deepest underwater tunnel, with a maximum depth of 264m or 866ft below sea level, reaching about three times the height of The Statue of Liberty, according to themeasureofthings.com.


4. Bømlafjord Tunnel

Opened in 2000, the Bømlafjord Tunnel in Norway is currently the fourth deepest underwater tunnel ever constructed. According to structurae.net, this tunnel connects the Norwegian mainland to the island of Føyno. Furthermore, it also measures 262.5m or 861ft below sea level or about half the height of The Willis Tower in Chicago, as per themeasureofthings.com.


5. Seikan Tunnel

According to web-japan.org, the Seikan Tunnel has been connecting the Japanese Islands of Honshu and Hokkaido since it opened in 1988. Furthermore, its currently the world’s fifth deepest underwater tunnel with a maximum depth of 240m or 787ft below sea level, which is about half the height of the Petronas Twin Towers, according to themeasureofthings.com.

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