whatilearned
Read more: https://en.wikipedia.org/wiki/Chicago_Sanitary_and_Ship_Canal?repost
TIL The Chicago Sanitary & Ship Canal was built to better connect Chicago to the Mississippi River, and was the world’s largest canal at the time. It provided engineers with the necessary experience to help construct the most pivotal infrastructure project in US history – the Panama Canal.
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they reversed the flow of the chicago river to do it. chicago could send it’s sewage into the mississippi instead of lake micbigan.