Where I live, Calatrava's name is a joke. The pedestrian bridge he built in Venice between 2003 and 2008 exhibited design errors that led to huge cost overruns. Calatrava himself went through a trial as he was found guilty of gross negligence and convicted. Today when you walk across that bridge you have to tread lightly because it is slippery and certainly the uneven steps are a threat to your health. And yes, there are hundreds of centuries-old bridges in Venice from which the architect could have learned something. In Europe, I read that Calatrava has had to appear in court for other projects with similar outcomes (Oviedo, Amsterdam, Bilbao).