At least one reason is that we have substantially different safety regulations since we're not accepting of deaths on a project like that. 5 people died on that project. 11 died to build the Golden Gate. Original Bay Bridge? 24.
They actually had a rule of thumb at the time: 1 death for every $1M spent on a project[1]. Any metric like that would be absolutely unacceptable today.
At least one reason is that we have substantially different safety regulations since we're not accepting of deaths on a project like that. 5 people died on that project. 11 died to build the Golden Gate. Original Bay Bridge? 24.
They actually had a rule of thumb at the time: 1 death for every $1M spent on a project[1]. Any metric like that would be absolutely unacceptable today.
[1] - https://www.npr.org/2012/05/27/153778083/75-years-later-buil...