Careful, detailed planning and much paperwork enabled the Empire State Building to be put up in record time.
A progress chart and a printed timetable were issued daily. These specified everything to be done that day, identifying each truck that would drive right in onto the first floor, what it would be delivering, and who was responsible to receive it and to use the materials it carried. Each steel piece was numbered to see that it went to the proper derrick and to indicate its proper place in the building.
