Tommy Long (Green Shirt), resident engineer for the Chickamauga Lock Replacement Project, briefs Maj. Gen. Michael C. Wehr, Mississippi Valley Division commander, during a visit to the lock Aug. 8, 2015, in his capacity as the president of the Mississippi River Commission. The Honorable Sam E. Angel, civilian member of the commission, is also listening to Long. The commission is on a low water inspection of the Tennessee River. Long works in the U.S. Army Corps of Engineers Nashville District Engineering and Construction Division. (USACE photo by Leon Roberts)