[alanctgardner3]

For reference, ~100 people died in terrible conditions building the Hoover Dam. It was a tremendously unsafe worksite. The environmental impact of the project was barely considered.

I think all things considered we've made good progress.

[jacquesm]

On a relative scale the number of accidents building the Hoover dam was high but not spectacularly high when compared to the number of people dying in high-rise construction and road building.