The Colbert County Coroner's Office said a 12-year-old died following a rescue near the Wilson Dam Waterfall Wednesday.
Helen Keller Hospital officials identified the victim as Georgia Myrick.
The Tennessee Valley Authority will work with Colbert County authorities to investigate the death, as it happened on its land.
"TVA would like to extend our heartfelt condolences to the family and loved ones of the child at this difficult time," a TVA spokesperson said, "We have secured the area and are working with the local authorities to understand how this tragedy occurred."
Sheffield police says Myrick was rushed to the hospital after being swept in a culvert downstream from Wilson Dam in Colbert County.
Police Chief Greg Ray told WAAY 31 the 12-year-old was swimming or playing in the water near the Wilson Dam Waterfall before being swept away.Authorities rescued the child, and she was taken by ambulance to Helen Keller Hospital where she was later pronounced dead.
Colbert County EMA Director Mike Melton says the Muscle Shoals Rescue Squad utilized a hydraulic rescue tool branded as the "Jaws of Life" to clear debris before they could recover Myrick safely.
Multiple agencies, including Tennessee Valley Authority police assisted in the search.