How They Built the "Impossible"

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Published Sep 18, 2026

The Eads Bridge was an engineering marvel unlike anything America had seen before. Construction began in 1867, with crews attempting something many believed impossible: building a massive steel arch bridge across the Mississippi River into St. Louis.

Workers descended deep beneath the river to construct its enormous piers, while revolutionary steel tubes and construction techniques helped reshape the future of bridge building.

In this video, we explore how the Eads Bridge was built, what lies inside its massive steel structures, and the dangerous methods used to reach the bottom of the Mississippi. We also look at James B. Eads’ remarkable career salvaging shipwrecks, the workers who lost their lives during construction, and the bridge’s complicated history of ownership—including its connection to J.P. Morgan.

More than 150 years later, the Eads Bridge still stands as a monument to one of the most ambitious engineering projects of the 19th century. @whoelseloveshistory

Quick Ideas for Using the Video with Students:
1. Use the video as part of a unit focused on bridge engineering. As students study how bridges are constructed, the physics involved in creating and building the appropriate superstructure, and designing and/or building their own bridge, how can they use the "revolutionary" techniques of James Eads to inspire their creation?
2. Use the video as part of a geography unit focused on the Mississippi River valley. As students learn about the history and geography of the river and how it influenced the people and places along its route, how can this story fit into their understanding of the river's importance and influence?
3. Use the video as your students study America's Industrial Revolution and post-Civil War expansion. How is Eads' achievement reflective of, and influential on, what was. happening in America at the time?

#historytours #engineeringhistory #mississippiriver #eadsbridge #bridgebuilding #americanhistory #industrialrevolution #stlouishistory