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1927 - Great Mississippi Flood

1927 Mississippi Flood_min.JPG

Title: 1927 - Great Mississippi Flood

About: Following heavy rains 60,000 square kms of the lower Mississippi River valley is submerged, displacing hundreds of thousands of people and killing 250.


The Great Mississippi Flood was the most destructive inundation in the history of America. River levels had been rising since summer 1926, with some flooding of upstream areas. Then in April 1927 heavy rain fell, and by May cracks or “crevasses” were appearing in levees towards the Mississippi delta itself. It was inevitable that the levees would break, but there were often arguments over whether to allow a particular levee to break naturally or dynamite it. Blasting a gap prevented the entire levee being washed away, and reduced the risk of flooding upstream.


.New Orleans was saved by destroying levees, at the expense of other more rural parts of Louisiana. Such decisions were often in the hands of property owners rather than those who would be most affected. About a million people were flooded out of their homes – 1% of the entire US population.

The flood changed the way rivers were managed. The US army corps of engineers, who built the levees, had previously insisted that embankments alone were sufficient; afterwards planned floodways or spillways were included as safety valves to relieve pressure on the levees.


The flood also had a significant social impact. Hundreds of thousands of homeless African Americans trekked north, leaving the land in search of industrial work and a better life.

Decade: 1920s

Year: 1927

Region: North America

Country: USA

Disaster: Natural

Society: Migration

Type: Historical Event

Impact: 3

Artist: Yulia Kozlova


Group: Genesis

Number: 27/100

Price: 0.3 ETH


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