The bay bridge was started in 1933, and construction ended in 1936. Metal fatigue and many other aspects of material science were unknown at that time. If the e

The bay bridge was started in 1933, and construction ended in 1936. Metal fatigue and many other aspects of material science were unknown at that time. If the eyebar was original, or built to original specs, it's entirely possible that the failure mode it exhibited wasn't even predictable given 1930s knowledge of materials under stress. So I'm not in too much of a rush to find someone to blame :)