RedactedNarrative: V-1 WAS ADRIFT SO THERE WAS NO ONE OPERATING IT.  WITNESS 1 WAS IN THE WATER AND WAS PREPARING TO BOARD V-1.  EVERYONE ELSE WAS ON THE BOAT.  INJURED PASSENGER LEANED UP AGAINST THE FRONT GATE OF THE VESSEL, WHEN THE GATE CAME OPEN AND HE FELL OFF OF THE VESSEL.  INJURED PASSENGER'S LEFT LEG GOT CAUGHT BETWEEN THE BOTTOM OF THE FRONT DECK AND THE PORT SIDE PONTOON CAUSING IT TO BE LACERATED.  WITNESS 1 SWAM TO THE INJURED PASSENGER AND HAD TO LIFT HIM UP TO GET HIS LEG OUT.  INJURED PASSENGER NEVER MADE IT TO THE WATER.  AREA OF ACCIDENT WAS APPROX 2.6 MILES NORTH OF THE DAM AND APPROX 2.8 MILES NORTHEAST OF THE SPILLWAY AND APPROX 2.3 MILES EAST OF AREA D BOAT RAMP.