Lake Blue Ridge Emptied for Dam Repairs

The TVA is currently performing maintenance on the penstock and intake tower of the Lake Blue Ridge Dam. The work has required a deep drawdown of about 70 feet below the full pool level. I found it rather amazing that with all of the boat traffic during the summers, the bottom is relatively unfouled from garbage and such - I bet that the bottom of Lake Lanier further south towards Atlanta is not quite as pristine...