On March 17, 1930, construction began on the Empire State Building, and in a White House ceremony May 1, 1931, President Hoover threw switch that turned the lights on in the completed structure up in New York.
After the Twin Towers were destroyed by Muslim terrorists in 2001, jurisdictional and insurance disputes kept construction of a replacement stalled until 2006. Work began that year, and was finally completed in 2015.
That time table brings us closer to the Empire State Building’s 14-month construction pace and not, God help us, the Trade Center’s 9 years, but looking at the two structures, our piddly bridge and the building on 34th Street, I think we’re actually closer to the Trade Center’s speed in this era than that which prevailed (with hand tools!) in 1930.