Boating on a TVA lake (IMAGE) University of Tennessee Institute of Agriculture Caption A recently released study by the University of Tennessee Institute of Agriculture has concluded the combination of aquatic recreation and waterfront property along the Tennessee Valley Authority's managed river system creates $11.9 billion of annual economic impact -- the equivalent of $1 million per shoreline mile. Credit Photo courtesy TVA. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.