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| River Flood of 1927: Saving the City Dynamiting an Artificial Crevasse at Caernarvon, St. Bernard Parish, LA |
| Dynamiting an artificial crevasse at Caernarvon, St. Bernard Parish, 14 miles below New Orleans, to save the city from flooding during the great Mississippi River flood of 1927. |
| Crevasse in the levee, after the dynamiting |
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