America's $4BN BRIDGE-TUNNEL Explained

Added: 2026-05-06

[00:00:00]We've all used bridges and tunnels to get around before, but have you ever driven through a bridge tunnel? They've been about for decades. In fact, you'll find them all over the world now, but did you know that America was the first to build one of these in a place that you might not have even heard of, Norfolk, Virginia? It's a city that's also home to the largest naval base on Earth. And that's actually the reason why this new type of infrastructure was created. If they tried to build a regular bridge here back in the 1950s, these massive ships would never have fit through. That's why it's a bridge that transforms into a tunnel in the middle, allowing vessels to pass overhead. But over time, this critical piece of infrastructure has become a massive bottleneck, and it now needs to double its size. They're basically having to build a whole second one right next to it. And this time, they're using one of the biggest tunnel boring machines in US history. It's an enormous and extraordinarily complex project.