RedactedNarrative: WHILE TRAVELING NORTH EAST IN ARCHERS CREEK, UNIT 1 LOST STEERAGE DUE TO HYDRAULIC MALFUNCTION. OPERATOR OF UNIT 1 MADE A TURN TO STARBOARD TO TRAVEL THROUGH CENTER OF BRIDGE CROSSSING OVER A WAKE. UNIT 1 STEERING DIDNT RESPOND AND MADE CONTACT WITH THE LEFT DOLPHIN PILE OF BRIDGE WITH THE PORT FOWARD RUB RAIL OF VESSEL.  Three people were injured from contact with the pile.  