RedactedNarrative: The Operator and two occupants were intending to fish below the DuBay Dam on the Wisconsin River in the calm water between the power house on the west side of the river and several open tainter gates on the east side.  Once they got to the location, the Operator stated the boat motor stopped and he was unable to get it started.   The operator and the occupants attempted to anchor the vessel in the calm water, but the anchor did not touch the bottom.  As the Operator continued to start the motor, the vessel began to drift into the rushing water coming out of the opened gates.  The operator stated that everyone in the boat put life vests on at this point.  While the boat was drifting it appeared the anchor got caught on something in the water which caused the vessel to dip below the water level and begin to flood.   The vessel capsized and all three occupants were floating in the water.  A witness who had just docked his boat, drove to their location and helped them into his vessel.  The attempted to drag the capsized vessel to shore but were unable to do so.
  
  The operator and occupants were checked over by EMS and released at the scene.  One occupant was transported to the hospital due to an elevated heart rate.
  
  The boat remained submerged until the gates were closed and recovered by Law Enforcement Personnel.
  