It took a year to build the Empire State Building, and 5 years to build the Hoover Dam yet current estimates for the Francis Scott Key bridge rebuild are near 10 years. Why is this? Have we regressed?
In: Engineering
On the Empire State Building: *Construction works began before the design was completed. Foundations were excavated while demolition of the existing building was still going on. The official death toll was 14 workers.*
The Hoover Dam: Was designed before the construction started. Was built on dry land … they diverted the river around the dam site and had a dedicated rail line delivering concrete. Official death toll was 96 workers.
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