Yangshan Deep-Water Port

Yangshan Deep-Water Port opened its first phase in December 2005 on islands about 30 kilometers off Shanghai, linked to the mainland by the 32.5-kilometer Donghai Bridge, giving Shanghai deep berths for the largest container ships.

2005 Yangshan Islands, off Shanghai, China

What happened and why it matters

Yangshan solved Shanghai's main limitation, a shallow river port, and helped Shanghai become the world's busiest container port from 2010. Building on offshore islands provided the water depth that the biggest ships need, while the Donghai Bridge carries trucks to the mainland. Later phases added more berths, including a highly automated terminal that opened in 2017. Yangshan now handles a large share of Shanghai's container exports, so many U.S. importers' boxes from eastern China load there. Its scale also explains why port closures or COVID lockdowns in Shanghai quickly affect U.S. ocean capacity, transit times and freight rates.

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