The Batman and the Bridge Builder
99% Invisible23 Feb 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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Episoder(752)

Movie Title Sequences

Movie Title Sequences

More and more I’m finding that the first 2-3 minutes of a movie are my favorite part of the film. My life is devoted to the beautiful expression of information, which is why film title sequences hold a special place … 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.

10 Jun 20119min

Bridge to the Sky

Bridge to the Sky

There are rules that dicate 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 … 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.

3 Jun 20115min

Chicago’s Jailhouse Skyscraper

Chicago’s Jailhouse Skyscraper

The Metropolitan Correctional Center, or MCC, is a federal jail right in the middle of downtown Chicago. It’s a triangle-shaped skyscraper, 27 stories, with tall, super-narrow, irregularly-spaced windows up and down each wall. The outside walls look like old computer … 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.

20 Mai 20117min

Unsung Icons of Soviet Design

Unsung Icons of Soviet Design

There’s something that links most of the everyday objects presented in “Made in Russia: Unsung Icons of Soviet Design.” But it’s hard to tell exactly what that is just by looking at this collection of wobbly dolls, drinking glasses, primitive … 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.

13 Mai 20118min

The Capitol Columns

The Capitol Columns

If you were present for any of the presidential inaugurations, from Andrew Jackson to Dwight D. Eisenhower, you saw the solemn oath of office taken between twenty-two smooth, sandstone columns at the East Portico of the U.S. Capitol Building. The … 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.

6 Mai 20116min

You Are Listening To + Radio Net

You Are Listening To + Radio Net

youarelistening.to appeared online on March 6, 2011 and I was hooked instantly. The combination of the police scanner and ambient music is an intriguing, and distinctly live, experience (unlike most of the time shifted audio I tend to consume). Its … 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.

22 Apr 201120min

Free Speech Monument

Free Speech Monument

In 1989, a group called the Berkeley Art Project decided to hold a national public art competition to create a monument that would commemorate the 25th anniversary of the Free Speech Movement, which began on the University of California Berkeley … 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.

15 Apr 20118min

BLDGBLOG: On Sound

BLDGBLOG: On Sound

Most sound design in architecture is centered around designing for silence. Buildings are trying to block out that constant stream noise from the street and insulate you from those jarring clangs of industry. Geoff Manaugh loves the intersection of sound … 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.

1 Apr 20115min

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