Most bridges try to stay above water. This one does something else. Midway across the Pearl River, the road dips down into a tunnel under the seabed and comes up again on the other side. According to a paper by engineers Ming Lin and Wei Lin, published in the journal Engineering, the tunnel section was one of the most technically demanding parts of the entire project. If you’ve ever wondered how a road can disappear into the sea, this bridge is a good place to start.
A bridge that disappears into the sea
