Comments by "" (@neutronalchemist3241) on "The Genoa Bridge Disaster 2018 | Plainly Difficult Documentary" video.

  1. The bridge had not been built like that for the look. That kind of structure allowed to spare a lot of steel, when the price of steel was an important part of the total costs.
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  2. It's called "pre-tensioned" or "pre-stressed" concrete, and it's a now well known building method. The stress induced by the cables is designed to contrast the one induced by the gravity.
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  3. The first bridge had not been "rushed toghether". It used a design that allowed to spare steel when steel was an important part of the construction cost. The second bridge had not been "rushed tohether". Three years for a bridge of that kind is fast, but far from "very fast". Simply to design and build bridges of that dimension is now far easier than it was in the '60s.
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