RedactedNarrative: Vessel was operating on one engine and could not maneuver to avoid collision with bridge due to current.   The operator  turned to starboard to avoid the bridge and got caught in the current. The vessel collided the bridge with the port stern and the tower of the vessel. The vessel started listing to the port and the vessels tower ripped off. The vessel traveled through the bridge spans and was now on the Bay side of the bridge. The tow boat operator arrived on scene, attached a rope to the disabled vessel and towed the vessel to the side of the channel and set the anchor. No other injuries were reported. Statements were collected and photos were taken of the vessel once the vessel was recovered and brought to shore. No further action was taken.