Jerry Summers: Nickajack Cave No. 2 - Scuba Disaster? Saturday, January 9, 2021 - by Jerry Summers One of the collateral benefits of writing two columns a week for the Chattanoogan.com are the occasional comments and suggestions by viewers that either submit a new topic or expand the original story by adding a previously unmentioned feature about the subject in question. On December 24, 2020 I wrote an article about the history of Nickajack Cave and the effect of the Tennessee Valley Authority (TVA) erecting Nickajack Dam a mile east down the Tennessee River when the flood gates of the new dam were closed and there would be “permanent flooding of the Nickajack Cave and the land in front of it.”