how long did it take workers to build the empire state building
Empire State Building By July 27, half of the steel skeleton had been completed.[108] The steel structure was completed on September 19, twelve days ahead of schedule and 23 weeks after the start of construction.[112] The Empire State Building surpassed the heights of both the Chrysler Building and 40 Wall Street on April 11, 1931, twelve days ahead of schedule and 410Â days after construction commenced.[2]