Comment by coldcode

Steel is funny stuff; you do everything right but one thing, and that bites you. But unlike the FIU bridge disaster the building was designed with proper safeguards so that one flaw would not knock the whole thing down. Read the FIU report, it's very interesting. I always try to write code assuming something somewhere will break, at least you want it to do nothing harmful not matter what. With large real world projects, failure can kill people very easily, and being redundant is a real requirement, not a nice to have. From a steel standpoint I marvel at the Brooklyn Bridge, almost 150 years old, and has less issues than any other NY bridge.