From ProphecyIndex.org

 
 Prophecy:   The Fall of the Hoover Dam

 Name:   Dr. Patricia Green

 Source URL:   Click to View

 Type:   Prophecy  

 Status:    In Progress  

9. Dams will be breaking flooding the people below. Specifically Hoover dam will be the one which breaks.

Admin Note: I'm adding in a few other dam collapses here because half the prophecy is general, and the other half is specific, so I'm including both scenarios for completeness.
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