This is less technical and more readable, http://www.amazon.com/Engineer-Human-Failure-Successful-Design/dp/0679734163/ref=sr_1_1?ie=UTF8&s=books&qid=1257031893

This is less technical and more readable, http://www.amazon.com/Engineer-Human-Failure-Successful-Design/dp/0679734163/ref=sr_1_1?ie=UTF8&s=books&qid=1257031893&sr=8-1 http://www.amazon.com/Engineer-Human-Failure-Successful-Desi... , and Petroski describes a bridge that failed as the result of a single eyebeam failure. In that case though, there were only 4 very short eyebeams supporting the roadbed, one at each corner. He didn't actually call them eyebeams, but hangers, but from the photos, they are the same thing.