Mile engineered by Fazlur Rahman Khan in 1983. The contractors had to complete a floor before they started erecting the floor above it. Concrete was more expensive in New York City than anywhere else in the United States, which raised the construction costs. All the floors above the 20th used a roughly similar design, and each of these floors could be completed within two days. However, the floors below the 20th floor were all different, so each took several weeks to erect. Trump Tower had a low number of worker fatalities during construction. One worker died during the tower's excavation after a neighboring sidewalk collapsed. Another incident occurred when the tower's 25th through 27th floors accidentally caught fire, slightly damaging a construction crane and delaying construction for two months. In May 1983, a glass windowpane fell from a crane installing windows on the tower, hitting two pedestrians, one of whom later died from a skull fracture. Trump Tower was topped out by July 1982, two-and-a-half years after the start of construction. Originally, it was estimated the tower would cost $100 million to build. The total cost ended up being approximately twice that; this included $125 million in actual construction costs and $75 million for other expenditures such as insurance. Critical reception In a 1982 review of the building, New York Times architecture critic Paul Goldberger contrasted the "reflective" Trump Tower with the nearby postmodern 550 Madison Avenue building. In a later review just before the tower opened, Goldberger said the tower was "turning out to be a much more positive addition to the cityscape than the architectural oddsmakers would have had it". According to Goldberger, the indoor atrium might become "the most pleasant interior public space to be completed in New York in some years" because the marble and brass made it "warm, luxurious and even exhilarating", although it was "a bit too high and narrow" and with little room for crowds. However, he criticized the "hyperactive" exterior of the tower, contrasting it with Tiffany's "serene," solid facade next door, as well as the narrowness of passageways within the atrium, saying it created "little room for milling or casual strolling." In a 1984 article, Ada Louise Huxtable, The New York Times architecture critic from 1963–1982, was quoted by New York Times writer William E. Geist as saying that the building was a "dramatically handsome structure." Huxtable responded that the comment