Which U.S. river was engineered to flow backwards?
Chicago River
Missouri River
Colorado River
Mississippi River
In the late 19th century, facing issues of pollution and sanitation due to the river’s flow into Lake Michigan, engineers undertook a massive endeavor to permanently reverse the river’s flow, sending its polluted water to the Mississippi River instead. The project involved constructing an intricate network of canals, locks, and channels, ultimately connecting the Chicago River to the Illinois River system. Completed in 1900, this eight-year project effectively reversed the flow of the Chicago River, diverting the polluted water away from Lake Michigan.
Correct Answer: Chicago River