U.S. Army Corps of Engineers Kansas City District Environmental Engineer Jesseca Alexander works on her research project, “Unconfined Sediment Placement Tests,” during her six-month detail at the U.S. Army Engineer Research and Development Center (ERDC) in Vicksburg, Miss. As an ERDC University selectee, Alexander is preparing the cap material for a placement test in a ten-foot column. The test will show how the sand and coke perform when placed through a large water column. (U.S. Army Corps of Engineers photo)