RedactedNarrative: Vessel 1 was headed north in East Biloxi channel and struck the Hwy 90 bridge pile.  The impact threw three of the four occupants from the vessel.  All four occupants were injured from the impact.  Operator received injuries to his head and neck.   Passenger 1 injured back and left knee.  Passenger 2 received injuries to left shoulders and cracked left ribs.  Passenger 3 had injuries of both knees.  Vessel damage was on front starboard side fiberglass and tuna tower ripped off the vessel.  Approximate vessel damage $5000.  Operator had Blood alcohol content of .201 and was charged with BUI.