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Chasing Chicago's movable bridges (2014)

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Why This Matters

This article highlights the engineering marvels of Chicago's movable bridges, showcasing their historical significance and intricate mechanical design. Understanding these structures emphasizes the importance of infrastructure maintenance and innovation in urban transportation. For consumers and the tech industry, it underscores the blend of engineering artistry and technological efficiency that keeps cities functioning smoothly.

Key Takeaways

Marcin Wichary 25 August 2014 / 900 words / 50 photos

Seesaws for giants

Chasing Chicago’s movable bridges

Canal Street Bridge · 8:40am

Chicago is a city of bridges but, more importantly for that one weekend day in April 2011, Chicago is a city of movable bridges.

Every spring, a few times a week, twenty-seven bridges open in sequence to allow the boats to get to the lake… and every fall that sequence is reversed.

I flew to Chicago for the weekend so that my local friend Jen and I could chase those bridges as they opened and closed.

Here’s a map. We started in the south-western corner with Ashland Avenue Bridge:

It was amazing; we were looking at structures weighing thousands of tons moving up and down without little apparent effort.

Ashland Avenue Bridge · 8am

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