The Batman and the Bridge Builder
99% Invisible23 Helmi 2021

The Batman and the Bridge Builder

Mark Bloschock is an engineer from Texas, and in the late 1970s he got a job with the Texas Department of Transportation renovating the Congress Avenue Bridge. The bridge was a simple concrete arch bridge that spans Lady Bird Lake in downtown Austin. It needed to be rebuilt with more contemporary beams called “box beams.” The box beams sit below the road’s surface, and they needed to be spaced a certain distance apart. Bloschock and the other engineers decided that the gap should be somewhere between ¾ of an inch and an inch and a half, which didn’t seem like a particularly meaningful decision… until the bats moved in.

A tale of bats and bridges and how the built environment and the natural environment don’t need to be at odds with one another.

The Batman and the Bridge Builder

Plus, we talk with Simon Doble, CEO of Solar Buddy. Light access (both day and night) is a basic need many people take for granted. SolarBuddy is an Australian charity uniting a global community with a big dream to gift six million solar lights to children living in energy poverty by 2030, to help them to study after dusk and improve their education outcomes.

99% Invisible’s Impact Design coverage is supported by Autodesk. The Autodesk Foundation supports the design and creation of innovative solutions to the world’s most pressing social and environmental challenges. Learn more about these efforts on Autodesk’s Redshift, which tells stories about the future of making across architecture, engineering, infrastructure and manufacturing.

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Jaksot(750)

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Breaking the Bank

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When I go into a bank, especially if I have to stand in line waiting to make a deposit, my mind wanders. And one of the first place it wanders to is: how I would rob the place. How could … Continue reading → Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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Cow Tunnels

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The westernmost part of Manhattan, between 34th and 39th street, is pretty industrial. There’s a bus depot, a ferry terminal, and a steady stream of cars. But in the late 19th early 20th centuries, this was cow country. Cows used … Continue reading → Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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Ten Thousand Years

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Monumental Dilemma

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About ten miles north of Concord, New Hampshire, off of interstate 93 there’s a little island with a great, big monument on it. The monument depicts a woman, who is holding a hatchet in her right hand and bunch of … Continue reading → Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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Young Ruin

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If you’ve wandered around Machu Picchu, or Stonehenge, or the Colosseum, or even snuck into that abandoned house on the edge of town, you know the power in a piece of decrepit architecture. And even if you don’t want to … Continue reading → Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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Masters of the Uni-verse

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Uniforms matter. When it comes to sports, they might be the only thing to which we’re actually loyal. Sports uniforms are packaging. But unlike any other packaging, if the product inside changes or degrades, we remain loyal. Players come and … Continue reading → Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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When it was built in 1977, Citicorp Center (later renamed Citigroup Center, now called 601 Lexington) was, at 59 stories, the seventh-tallest building in the world. You can pick it out of the New York City skyline by its 45-degree … Continue reading → Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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