Quantcast

Norway to Build World's First Floating Underwater Tunnels

Popular

An unconventional and first-of-its-kind form of transportation infrastructure could be the answer to traveling across fjord-ridden Norway.

Photo credit: Norwegian Public Roads Administration

To complete the 680-mile drive under current conditions, you would have to allow 21 hours for travel. Why? Traveling north-to-south across the country requires eight ferry trips across fjords. Norway's fjords are too deep and too wide to support bridges. Well, above water ones that is.

A $25-billion project by the Norwegian Public Roads Administration poses a possible solution to that problem: floating underwater tunnels.

The tunnels could cut trip time to 10.5 hours by reducing the need for ferry rides. The project is expected to be completed by 2023. Each tunnel would be suspended under 100 feet of water, held up by pontoons on the fjord's surface and possibly an anchor bolted to the bedrock. Each fjord would be equipped with two tunnels: each two-lane, one for traffic flowing in each direction.

Photo credit: Norwegian Public Roads Administration

Underwater tunnels aren't a new idea for Norway. The country has 1,150 traffic tunnels, 35 of which are located under shallow bodies of water. Fjords, however, can be a mile deep, creating a challenge for conventional tunnels.

The floating underwater tunnels will allow boats to still traverse the fjord without the worry about hitting or being blocked by a bridge.

But there's still a long way to go before floating underwater tunnels become reality. Engineers have several questions to answer, including how wind, waves and currents will affect the structures. If the tunnels prove too difficult, Inhabitat reported, politicians have the right to send the funding to another project.

The following Norwegian Public Roads Administration video offers more information about the project:

EcoWatch Daily Newsletter

A vegan diet can improve your health, but experts say it's important to keep track of nutrients and protein. Getty Images

By Dan Gray

  • Research shows that 16 weeks of a vegan diet can boost the gut microbiome, helping with weight loss and overall health.
  • A healthy microbiome is a diverse microbiome. A plant-based diet is the best way to achieve this.
  • It isn't necessary to opt for a strictly vegan diet, but it's beneficial to limit meat intake.

New research shows that following a vegan diet for about 4 months can boost your gut microbiome. In turn, that can lead to improvements in body weight and blood sugar management.

Read More Show Less
Students gathered at the National Mall in Washington DC, Sept. 20. NRDC

By Jeff Turrentine

Nearly 20 years have passed since the journalist Malcolm Gladwell popularized the term tipping point, in his best-selling book of the same name. The phrase denotes the moment that a certain idea, behavior, or practice catches on exponentially and gains widespread currency throughout a culture. Having transcended its roots in sociological theory, the tipping point is now part of our everyday vernacular. We use it in scientific contexts to describe, for instance, the climatological point of no return that we'll hit if we allow average global temperatures to rise more than 2 degrees Celsius above preindustrial levels. But we also use it to describe everything from resistance movements to the disenchantment of hockey fans when their team is on a losing streak.

Read More Show Less
Sponsored
samael334 / iStock / Getty Images

By Ruairi Robertson, PhD

Berries are small, soft, round fruit of various colors — mainly blue, red, or purple.

Read More Show Less
A glacier is seen in the Kenai Mountains on Sept. 6, near Primrose, Alaska. Scientists from the U.S. Geological Survey have been studying the glaciers in the area since 1966 and their studies show that the warming climate has resulted in sustained glacial mass loss as melting outpaced the accumulation of new snow and ice. Joe Raedle / Getty Images

By Mark Mancini

On Aug. 18, Iceland held a funeral for the first glacier lost to climate change. The deceased party was Okjökull, a historic body of ice that covered 14.6 square miles (38 square kilometers) in the Icelandic Highlands at the turn of the 20th century. But its glory days are long gone. In 2014, having dwindled to less than 1/15 its former size, Okjökull lost its status as an official glacier.

Read More Show Less
Members of Chicago Democratic Socialists of America table at the Logan Square Farmers Market on Aug. 18. Alex Schwartz

By Alex Schwartz

Among the many vendors at the Logan Square Farmers Market on Aug. 18 sat three young people peddling neither organic vegetables, gourmet cheese nor handmade crafts. Instead, they offered liberation from capitalism.

Read More Show Less
Sponsored
StephanieFrey / iStock / Getty Images

By Lauren Panoff, MPH, RD

Muffins are a popular, sweet treat.

Read More Show Less
Hackney primary school students went to the Town Hall on May 24 in London after school to protest about the climate emergency. Jenny Matthews / In Pictures / Getty Images

By Caroline Hickman

Eco-anxiety is likely to affect more and more people as the climate destabilizes. Already, studies have found that 45 percent of children suffer lasting depression after surviving extreme weather and natural disasters. Some of that emotional turmoil must stem from confusion — why aren't adults doing more to stop climate change?

Read More Show Less
Myrtle warbler. Gillfoto / Flickr / CC BY-SA 2.0

Bird watching in the U.S. may be a lot harder than it once was, since bird populations are dropping off in droves, according to a new study.

Read More Show Less