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[quote user="blue streak 1"]Will not speculate but some eyewitnesses stated they saw lightning hit the bridge pylon ? Now if that is true and there was not suffiecient lightning protection on outside of pylon ? ? ? [/quote] I don't know if the bridge had a lightning protection system or if it is required in Italy. A sound bridge would not be affected by lightnings. But even if it wasn't sound, which is likely, a lightning would not necessarily damage the bridge. The short answer, I don't know. It is unlikely that the bridge was sound. It is 51 years old and needed strengthening of the stays at the first pylon already: <a href="http://www.e-periodica.ch/cntmng?type=pdf&pid=bse-re-003:1995:73/1:73/2::629">www.e-periodica.ch/cntmng?type=pdf&pid=bse-re-003:1995:73/1:73/2::629</a> The stays are pre-tensioned concrete and quite vulnerable. We have a lot of problems with prestressing steel from that time in the German bridges. Not saying that it might have been the cause. Here a picture of the pylon that collapsed: <a href="http://www.retrofutur.org/retrofutur/app/download/IMG_0180.JPG?DOCID=100002100&blobIndex=image_orig">http://www.retrofutur.org/retrofutur/app/download/IMG_0180.JPG?DOCID=100002100&blobIndex=image_orig</a> Regards, Volker
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