The Mississippi doesn't carry as much sediment as it used...

The Mississippi doesn't carry as much sediment as it used to. There's something like 1,300, 1,400 dams on the Mississippi. All that sediment is being trapped behind those dams. In the long-term scheme of things, we're going to have to reactivate that sediment.

Harry Roberts Quote About Behind, Carry, Dams, Scheme, Trapped: The Mississippi Doesnt Carry As...

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