The World's Longest Road Tunnel is Being Planned — and It Will Include a Roundabout
Norway, europe
27 km
392 m
moderate
Year-round
# The Boknafjord Tunnel: Norway's Game-Changing Underwater Drive
Picture this: you're cruising beneath the sea for over 26 kilometers, no ferries, no endless waits—just open road. Norway's making this dream real with the Boknafjord Tunnel, and it's honestly wild.
For decades, travelers between Randaberg (near Stavanger) and Bokn have been stuck taking ferries that add hours to their trips. Not anymore. This 27-kilometer underwater tunnel plunges 392 meters below sea level, making it the longest and deepest subsea tunnel ever built. When it opens in 2033, it'll steal the crown from the Lærdal Tunnel to become the world's longest road tunnel, period.
## Why Everyone's Excited
This isn't just about shaving time off your commute. The tunnel connects the entire E39 highway—linking Kristiansand, Stavanger, Haugesund, Bergen, Førde, Ålesund, Molde, and Trondheim. Freight operators, emergency services, tourists, and everyday drivers will all benefit from a ferry-free route that cuts 50 kilometers off the current 21-hour journey.
## The Engineering Marvel
Skanska is handling construction on this NOK 5 billion project, with Norway investing a massive $45.5 billion in the entire E39 modernization. The tunnel features cutting-edge safety systems and infrastructure designed to handle the extreme conditions of the deep.
Beyond Boknafjord, Norway's even experimenting with floating underwater tunnels—a revolutionary concept that navigates the country's dramatic coastline while protecting the natural environment.
It's not just infrastructure; it's a statement. Norway's showing the world how to build smarter, faster, and greener.
Where is it?
The World's Longest Road Tunnel is Being Planned — and It Will Include a Roundabout is located in Norway (europe). Coordinates: 66.0827, 10.4028
Road Details
- Country
- Norway
- Continent
- europe
- Length
- 27 km
- Max Elevation
- 392 m
- Difficulty
- moderate
- Coordinates
- 66.0827, 10.4028
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