Sergeant Major of the Army Daniel Dailey, the Army's highest ranking enlisted Soldier, walks with Col. Michael C. Derosier, the Army Corps of Engineers, Vicksburg District commander, during a site visit to the Mat Sinking Unit July 24, 2018. The Mat Sinking Unit lays articulated concrete mattress to maintain the desired channel alignment of the Mississippi River by preventing channel migration through bank erosion. The unit typically conducts work during the traditional low-water season on the Mississippi River. (USACE

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Photo credit: © Barney Low / Alamy / Afripics
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