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bos2The Problem with Levees

By Nicholas Pinter – Scientific American – August 1, 2019
Along the great rivers of the U.S.—the Mississippi, Missouri, Ohio, Illinois and many others—history is tied to the syncopated rhythm of flooding. The great flood years of 1927, 1937, 1993 and 2011 are still remembered and discussed in history classrooms and around the family dinner table in many communities. Similarly, if you drill into most U.S. levees, you find marks similar to the growth rings of a tree, showing that the levee was enlarged multiple times, each time following failure during a previous flood event. Read full story here.

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