RedactedNarrative: Two people launched from the Clear Creek Ramp on Tellico Lake.  Operator drove under the Clear Creek Bridge  adjacent to the ramp.  Occupants noticed water around their feet and realized they forgot to put the plug in before launching.  
  
  Operator jumped in and attempted to put the plug in.  The boat became completely swamped and then capsized as a nearby boat was attempting to help.  Both occupants swam to shore.  Loudon County EMA arrived and towed the capsized boat a short distance back to the clear creek ramp and secured it there.  Owners plan to remove the boat in the very near future.