[fl7305]

In 1971 there where ships with almost twice the displacement of the Dali.

They weren't freight ships destined for Baltimore, but it wasn't hard to imagine future freight ship sizes when designing the bridge in the early 1970s.

The London sewer system was designed in the 1850s, when the population was around two million people.

It was so overdesigned that it held up to the 1950s, when the population was over 8 million. It didn't start to become a big problem until the 1990s.