no propaganda please wrote:
https://www.youtube.com/watch?v=8w5Fjouvma8
this Point Pleasant WV bridge disaster happened in 1967, but the reasons for the disaster and how to prevent such disasters from happening again is a much more recent discovery. A great learning video for everyone.
Any one interested in bridges should read this. Any one who EVER drives over a bridge will better understand bridges if they read it. Other people can ignore the collapsed bridge with no consequence.