Watching the horrible news of the bridge collapse in Minneapolis. CNN is currently listing 3 fatalities. Watching the footage, I'm thinking the news will get significantly worse. :(
As a structural engineer, things like this scare the hell out of me. I'm not sure if it's naive to take the safety of our buildings and bridges for granted, or a testament to our engineering and construction know-how when we realize how few and far between failures like this are.
There are many variables that can lead to a structural failure: errors in design, errors in construction, and errors in maintenance. And make no mistake, engineers, designers and constructors are only human. And humans make errors. Let's just hope they find out what those errors were, and what we can learn from them.