Sideways Train Bridges as Precursors to Skyscrapers

The early skyscrapers were inspired by the idea of turning steel train bridges on their sides. This episode of 99% Invisible explains.

And it was actually a small-lot urban infill project that ushered in the age of steel-framed skyscrapers.

"There are rules that dictate what you can build and how. Rules of physics and rules of men who sit on various bureaucratic boards and bodies. These rules dictated that if silk magnate John Noble Stearns wanted to build one of those ten story towers that were all the rage in 1888, on his 22 foot wide lot, he would need to build walls of stone and brick that were 5 feet thick. With tiny windows. Which left room for an interior that was only 11 feet wide. Slice off a few feet for a hallway. A few for a bathroom. A couple for a coat closet. Another for some filing cabinets and an umbrella stand. And he would be asking his well heeled tenants to work in a dark cell better suited to monks illuminating manuscripts.

Stearns asked the best architects in the northeast for a solution. They all told him it couldn't be done. Everyone except Bradford Gilbert."

Full Story: Episode 27- Bridge to the Sky

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