Norway's Insane 17-Mile Undersea Tunnel with an Underwater Roundabout! | Rogfast Explained

Dec 14, 2025 - 19:00

0 5

Norway's Insane 17-Mile Undersea Tunnel with an Underwater Roundabout! | Rogfast Explained

Norway is building the world's longest undersea car tunnel, Rogfast, stretching 17 miles beneath the North Sea. But what's truly mind-blowing? It features an underwater double roundabout 850 feet below the surface! This engineering marvel will replace ferry routes, connecting Stavanger, Haugesund, and Kvitsøy. Learn about the challenges of constructing a tunnel nearly a quarter mile deep, battling saltwater leaks and immense pressure. Will Norwegian drivers master the underwater roundabout? Find out in this video!
Keywords: Rogfast, Norway tunnel, underwater tunnel, longest tunnel, undersea roundabout, engineering marvel, Stavanger, Haugesund, Kvitsøy, North Sea, construction challenges, saltwater leaks, pressure, Norwegian infrastructure