The Tennessee Valley Authority's system of dams is more resilient one year after it prevented $186 million of flood damage in Chattanooga in the aftermath of Hurricane Helene, utility leaders said Tuesday during a visit to Chickamauga Dam. To read more, click the link in our bio. #chattanooga #tva #hurricanehelene Photo 1/Staff Photo by Robin Rudd / On Oct. 1, 2024, runoff from Hurricane Helene thunders through the floodgates at the Chickamauga Dam. The dam released 800,000 gallons of water per second. Photo 2/Staff Photo by Robin Rudd / On Oct. 1, 2024, runoff from Hurricane Helene thunders through the floodgates at the Chickamauga Dam. The dam released 800,000 gallons of water per second.