RedactedNarrative: There was a small dingy/rowboat that got untied from a dock earlier in the day and drifted into the Neenah Dam.  The Operator and Occupants thought that they would be able to rescue/recover the unoccupied boat.  They got close to the dam and were sucked in by the current and unable to reverse out. The vessel struck the dam causing the Operator and Passenger 1 to be ejected and go through the dam.  Passenger 2 was able to grab hold of the dam and pull himself up.  The Operator and Occupants walked to the ambulance.  The Operator and Passenger 1 were transported to the hospital for further checkup.