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1. • • Instead of flowing into Lake Michigan it would, in effect, flow into the Gulf of Mexico. The project involved the construction of a 28-mile channel through a glacial moraine and bedrock ridge. The Sanitary and Ship Canal would connect Lake Michigan at Chicago with the Des Plaines River at Lockport.
     www.lindahall.org/experience/digital-exhibitions/centuries-of-civil-engineering/02-water-supply/a-reversal-of-the-chicago-river/

     A. Reversal of the Chicago River - Linda Hall Library

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   Why was the Chicago River reversed?

   • Description: The direction of the Chicago river has been reversed to prevent the pollution of Lake Michigan from the city’s sewage. The gigantic engineering project was a success, but at what cost? Here we focus on the reversal’s various environmental effects on the river’s ‘new downstream’. Listen here: Transcript (provided by author):

   The Reversal of the Chicago River: The Environmental Effects

   voices.uchicago.edu/findingchicago/2022/09/09/the-reversal-of-the-chicago-river-the-environmental-effects/

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   Why did the Chicago River flow into Lake Michigan?

   • Wastewaters of the city flowed along with the Chicago river into Lake Michigan. Since Lake Michigan provided the city clean drinking water, many Chicagoans suffered from typhoid, cholera, and other waterborne illnesses. Many people thought about the solutions. Engineer Sylvester Chesbrough was the one who put forward a bold suggestion.

   The Environmental Impacts on the Reversal of the Chicago River

   voices.uchicago.edu/findingchicago/2021/08/27/the-environmental-impacts-on-the-reversal-of-the-chicago-river/

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   How did the Chicago river reversal affect invasive species?

   • The water caused frequent floods to farmland downstream. The second concern is about invasive species. The Chicago River reversal connected two of the world’s largest freshwater ecosystems – the Great Lakes and the Mississippi River. The connection opened new pathway for invasive species. One of the famous invasive species is Asian carp.

   The Environmental Impacts on the Reversal of the Chicago River

   voices.uchicago.edu/findingchicago/2021/08/27/the-environmental-impacts-on-the-reversal-of-the-chicago-river/

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   How did the Illinois river reversal affect fish species?

   • The reversal had a tremendous effect on the fish species in the Illinois river. As the Chicago river is connected to the Illinois river by the artificial canal, the Chicago’s sewage pollution slowly went downstream into the Illinois river.

   The Reversal of the Chicago River: The Environmental Effects

   voices.uchicago.edu/findingchicago/2022/09/09/the-reversal-of-the-chicago-river-the-environmental-effects/

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   How did Chicago's new canal affect Lake Michigan?

   • The new canal sent Chicago’s wastewater down the Mississippi River to the Gulf. Josh Mogerman, the national media director at the Natural Resources Defense Council, said that as a result of the reversal, Lake Michigan was free from pollution, and thousands of people were prevented from dying from many waterborne illnesses.

   The Environmental Impacts on the Reversal of the Chicago River

   voices.uchicago.edu/findingchicago/2021/08/27/the-environmental-impacts-on-the-reversal-of-the-chicago-river/

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   How has Lake Michigan reversal affected the environment?

   • The third environmental impact is still about pollution. Although Lake Michigan was protected, many communities downstream have argued that the pollution is shifting to them. Some people said that the reversal has caused pollution in areas as far as the Gulf of Mexico.

   The Environmental Impacts on the Reversal of the Chicago River

   voices.uchicago.edu/findingchicago/2021/08/27/the-environmental-impacts-on-the-reversal-of-the-chicago-river/

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3. voices.uchicago.edu › findingchicago › 2021/08/27The Environmental Impacts on the Reversal of the Chicago River

   voices.uchicago.edu › findingchicago › 2021/08/27

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   Aug 27, 2021 · The Chicago River reversal connected two of the world’s largest freshwater ecosystems – the Great Lakes and the Mississippi River. The connection opened new pathway for invasive species. One of the famous invasive species is Asian carp.

   • The Reversal of the Chicago River: The Environmental Effects

     Description: The direction of the Chicago river has been...

4. www.wbez.org › curious-city › 2019/10/12The Environmental Impacts Of The Chicago River Reversal ...

   www.wbez.org › curious-city › 2019/10/12

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   Oct 13, 2019 · The influx of water from Lake Michigan nearly doubled the size of the Illinois River, eroding the banks and swallowing farmland and wildlife habitat up and down the valley, writes Richard...

5. www.nytimes.com › chicago-river-lake-michiganA Battle Between a Great City and a Great Lake - The New York ...

   www.nytimes.com › chicago-river-lake-michigan

   Jul 7, 2021 · River managers have a trigger point for opening the lock gates — reversing the river’s flow into Lake Michigan — in order to protect downtown Chicago from disaster.

6. interactive.wttw.com › chicago-river-tour › howHow Chicago Reversed Its River: An Animated History

   interactive.wttw.com › chicago-river-tour › how

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   In a herculean effort to save the city from the ravages of typhoid, cholera, and other waterborne illnesses, engineer Sylvester Chesbrough suggested Chicago reverse the direction of its river away from the lake and toward the Mississippi River.

7. voices.uchicago.edu › findingchicago › 2022/09/09The Reversal of the Chicago River: The Environmental Effects

   voices.uchicago.edu › findingchicago › 2022/09/09

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   Sep 9, 2022 · Description: The direction of the Chicago river has been reversed to prevent the pollution of Lake Michigan from the city’s sewage. The gigantic engineering project was a success, but at what cost? Here we focus on the reversal’s various environmental effects on the river’s ‘new downstream’. Listen here: 00:00. Transcript (provided by author):

8. theculturetrip.com › north-america › usaHow the Chicago River Was Reversed - Culture Trip

   theculturetrip.com › north-america › usa

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   Jul 19, 2019 · The idea to reverse the flow of the river away from the lake had already been unintentionally attempted in 1871 when the existing Illinois and Michigan Canal was deepened, unexpectedly pulling in water from the Chicago River.

9. interactive.wttw.com › chicago-stories › race-toA Remarkable Feat of Engineering: When Chicago Reversed Its River

   interactive.wttw.com › chicago-stories › race-to

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   The Race to Reverse the River. From its earliest days, Chicago residents and businesses alike dumped their waste directly into the Chicago River, which flowed into Lake Michigan and contaminated the city’s drinking water. Chicago Stories explores the various methods tried to combat the problem, and one engineer’s bold solution.