At the turn of the 20th century, pioneering Chicagoans tamed the river in an astonishing engineering feat, reversing its flow to send pollution away from Lake Michigan, the city’s source of drinking water.

View the full New York Times article by Julie Bosman about the transformation of the Chicago River with commentary by Carol Ross Barney here: https://www.nytimes.com/interactive/2018/08/02/us/chicago-river-waterfront.html