The cone valve is in operation Sept. 3, 2024, at J. Percy Priest Dam in Nashville, Tennessee. With Hurricane Francine approaching Middle Tennessee, the U.S. Army Corps of Engineers Nashville District is holding water at J. Percy Priest Dam and releasing water from Cordell Hull Dam, Old Hickory Dam, and Cheatham Dam, which are run of the river projects on the Cumberland River, to position these projects for the expected heavy rains. (USACE Photo by Lee Roberts)