Retired Air Force Lt. Gen. Frank G. Klotz, U.S. Department of Energy undersecretary for Nuclear Security and National Nuclear Security Administration administrator, speaks at the Site Readiness Celebration March 13, 2015, at the New Hope Center located in the Y-12 National Security Complex in Oak Ridge, Tenn. The U.S. Army Corps of Engineers Nashville District administrated construction of the Bear Creek Road extension, which included the construction of a new bridge and mile of roadway and relocation of several potable water lines. (USACE photo by Leon Roberts)