Contact: David Ruth
Caption: This is a photo of Rice University researcher Jeffrey Nittrouer on an exposed dune field in the Bonnet Carré spillway in Louisiana in July 2011. Nittrouer and colleagues found that about 40 percent of the sand being carried down the Mississippi River was diverted through the spillway during a flood diversion that year.
Credit: J. Nittrouer/Rice University
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Related news release: Study: Centuries of sand to grow Mississippi Delta