RedactedNarrative: Above listed operator of vessel #1, operator advised that he was traveling downstream on the Bogue Chitto River at approximately 35-40 MPH when his vessel came to a sudden stop (Hit a submerged sand bar).  He was thrown forward striking the front deck of the vessel, face and chest first then was ejected into the water approximately 4 inches deep.  Operator was by himself wearing a Type III P.F.D, and his kill lanyard.  A camp owner nearby heard his vessel running, then the engine increased in RPM’s then died.  He rushed to the scene, assisted operator of vessel #1 and notified 911.  The operator was taken to North Oaks Hospital in Hammond, La. by ambulance.  He at this time has severe face and nose trauma as well as neck injuries to his cervical vertebra’s C-3 through C-7.  Injuries require several surgeries.