Modern Marvels | Reversal of the Chicago River

As Chicago grew into a major metropolis, its river became an open sewer that fed directly into the city’s water supply. It took a crafty engineer named Ellis Chesbrough to come up with a startling plan: reverse the flow of the river to the Mississippi, toward the city’s longtime rival, St. Louis.
Aired: 7/24/2018 | 0:05:18
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