Semonite visits high visibility construction projects, says it’s time to ‘finish strong’
Lt. Gen. Todd T. Semonite, U.S. Army Corps of Engineers commander, sees a barge lock through Chickamauga Lock during a visit to the project in Chattanooga, Tenn., June 7, 2016. The 60-by-360 foot lock has structural problems resulting from alkali aggregate reaction between the alkali in the cement and the rock aggregate, which results in a physical expansion of concrete structures. Even with costly advanced maintenance procedures, the concrete expansion threatens the structural integrity of the lock and limits its life span.