The Fern Hollow Bridge Collapse
We structural engineers are inveterate ambulance chasers; the only thing we enjoy more than designing bridges is trying to figure out why some of them fail. Last week’s collapse of the Fern Hollow bridge provided us with an outstanding opportunity to pretend we were forensic investigators; fortunately, there were no fatalities associated with this catastrophe. When I got up that morning, the first message in my email mailbox was one from Don Toney, “Turn on your TV! There has been a bridge collapse in Pittsburgh!” I immediately complied and found myself engulfed in an intriguing drama. I spent the rest…