Lt. Col. Stephen Murphy, U.S. Army Corps of Engineers Nashville District commander, talks with students attending the National Summer Transportation Institute program June 22, 2015 on a variety of engineering classes and current district projects during a lecture on the campus of Tennessee State University. The students received briefings on Corps leadership, engineering, structures, projects, mobility, engineer jobs, lock and dams, watersheds, Corps operating processes, and interacted with engineers and subject matter experts during a tour at the Old Hickory Lock and Dam in Hendersonville, Tenn.