Panama's Expanding Canal Can't Keep Up With Megaships

A ship carrying four new gates for the Panama Canal Photograph by Rodrigo Arangua/AFP via Getty Images

When it was completed a century ago, the Panama Canal was the largest engineering project the world had ever seen: A 50-mile cut through mountainous, malarial terrain to create gravity-fed water locks that could lift giant freighters and ocean liners 85 feet up from sea level, across the isthmus, and back down again. Now, though, this historic achievement is too small.

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