RedactedNarrative: Operator of vessel was cruising up river in a northernly direction with occupant.  Operator noticed a log floating in water and swerved to miss and struck the pillar of anthony bridge with portside of vessel. Both operator and occupant were thrown from vessel and acquired minor injuries. The vessel upon impact turned in an easterly direction and struck the embankment and significantly ramped upward. The vessel then settled back into the water. Extensive damage to vessel hull caused the vessel to sink. Both operator and occupant swam to shore.