RedactedNarrative: Vessel #1 an 18' open motorboat with remote steering was westbound on the ICW at approximately 5:45 p.m. pushing a non-powered 10X30 barge from the stern with the bow of Vessel #1. The throttle was in the forward position. The barge was a solid wall structure that caused restricted vision to the operator, while in Vessel #1. Operator was approaching the Vermilion River intersection near Intracoastal City, LA while he, and two others were sitting in chairs on the front deck of the barge. Operator was using a homemade rudder system to help guide the front of the barge while using Vessel #1 in the rear for power. Operator divided his attention, and left the front of the houseboat to check on the oil and gas levels in Vessel #1. After checking that the fluid levels were okay, he walked through the houseboat to go back to the front of the barge. Just before walking onto the front deck, he observed he was closely approaching the #2 Navigational Marker at the mouth of the Vermilion River. 
   
  Neither of the two occupants advised him of the upcoming object. Operator quickly returned to Vessel #1 and positioned the throttle into the reverse position to slow the forward progress and avoid collision with the marker. However, collision was made with the fixed marker, causing the marker to lean over just above the waterline. Operator was then notified by Occupant1 that Occupant2 had fallen overboard as a result of the collision. Operator then observed Occupant2 in the water next to Vessel #1. Occupant2 was retrieved from the water and placed into Vessel #1. Occupant2 suffered a laceration to the left knee as a result of the incident. Medical attention was sought from a local hospital to care for the laceration. It is unknown if the injury was sustained during the fall, while in the water or while being pulled into Vessel #1. No one was wearing a PFD during the time of the incident and no PFDs were used after the collision. Operator showed no signs of impairment when interviewed after incident. Operator advised that he had consumed a few beers throughout the day. SFST's were conducted and no signs of impairment were observed 
  
  Citation issued - Careless Operation to operator.