Boat operator stated that she hit something in the water with her motor and the motor died while she was trying to turn away from the dam.  The current then took the boat over the dam on the starboard side.  All occupants were thrown from the pontoon, three were able to get out PFD's.  All occupants then  swam/floated to the island nearby and were rescued by IFD shortly before I arrived on scene. Misc. pieces of property were lost during the accident.  None of which the occupants of the watercraft stated that they wanted to report.
Indianapolis                  