Jackie Huff (Left), U.S. Army Corps of Engineers Nashville District Eastern Tennessee Resident Office chief, leads Command Sgt. Maj. Douglas Galick on a tour Feb. 12, 2025, of ongoing construction of the K-25 Viewing Platform Building at East Tennessee Technology Park in Oak Ridge, Tennessee. The Nashville District is managing construction for the U.S. Department of Energy’s Oak Ridge Office of Environmental Management. The building will provide a historic lookout over the footprint of where the K-25 Building once stood, and the Oak Ridge Diffusion Plant produced uranium during World War II as part of the Manhattan Project. (USACE Photo by Lee Roberts)