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Morandi designed only three bridges with this type of stays. All needed permanent maintenance. No further bridges of this type were built. The strengthening of the stays of the first pylon took already place about 28 years ago. A civil engineering professor at the University of Genova said in German TV that the bridge was not neglected but that it was under steady observation. Not all developing defects can be detected easily from the outside. I found the original video of the collapsing pylon: <a href="https://www.youtube.com/watch?v=9UyQB6QL2Rc">https://www.youtube.com/watch?v=9UyQB6QL2Rc</a> At very beginning is something I haven't seen when TV stations used it. In the first frame there is already a gap in front of the collapsing pylon. But at the next still standing tower is some part going down diagonally to the left that vanishes. So the suspended span beteen tower and collapsing pylon breaks down before the pylon. But that doesn't help, as it could have started on the other side of the pylon. That part is not visible in the video. Regards, Volker
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