The collapse wasn't due to simple resonance, a common misconception, but a more complex phenomenon called aeroelastic flutter, where wind forces created self-exciting, twisting vibrations the slender design couldn't withstand. While a marvel of cost-saving innovation for its time, the bridge's fatal oscillations were observed and nicknamed during construction. The only life lost was a cocker spaniel named Tubby, trapped in a car abandoned by journalist Leonard Coatsworth, who barely escaped craw