(Center) Chris Sherek, an Old Hickory Hydropower trainee at the Old Hickory Lock and Dam from the Nashville District provides students Jessica Dedeaux from Wiggins, Miss., and John Fitzgerald, Jr., from Memphis, Tenn with information about the operations of the Old Hickory Lock and Dam on June 27, 2013. Both were part of a group of 17 students who attended the Tennessee State University Engineering Department's four-week National Summer Transportation Institute program that introduces students to various aspects of engineering. Both Dededaux and Fitzgerald plan to attend Tennessee State University and study Engineering.