U.S. Army Corps of Engineers working to buy time against salt water moving up Mississippi River

U.S. Army Corps of Engineers working to buy time against salt water moving up Mississippi River

Ricky Boyett, with the U.S. Army Corps of Engineers, explains how raising a sill, or underwater levee, will buy time to hold off salt water intruding on the lower Mississippi River. Salt water from the Gulf of Mexico is threatening drinking water in Louisiana because of the low water levels in the river.