On 6/9/12 at approximately 1145 hrs. S. A, and were notified of a boat incident which had occurred in the Atchafalaya Basin, St. Martin Parish.  Upon making contact with St. Mary S/O we were advised that two vessels had collided with one another, but there were no injuries.  Vessel 2 was being towed to Doiron's landing and vessel 1 was overturned still on scene.  While proceeding to the scene I spoke to the operators of the vessels and they advised that they had pulled vessel 1 to the side, not to impede navigation.  Upon my arrival vessel 1 was along the shore secured still overturned.  I noticed damage to the bow area and midways the starboard side near the chine and undercarriage.  Vessel 2 had impacting damage to its port side in line with the passenger console and along the gun whale towards the stern. The motor cowling had also been knocked off, and sank, as well as damage to the upper parts of the motor and broken motor mounts.  

After speaking with the two operators and their passengers it appears as though the two vessels met in a sharp turn and collided. Vessel 1's bow collided with vessel 2's port side at t he passenger console causing vessel ramp and roll over completely striking the cowling of the vessel 2's motor with its starboard chine.   No one was injured in this incident and alcohol and drugs is not a factor.  All subjects involved were wearing PFDs and the operators were wearing their engine cut off switches.  After reviewing the damage of vessel #1 it coincided with the findings of this incident.  The two vessels met in a sharp turn and vessel #2 turned starboard and vessel #1 turned port and was unable to correct itself before colliding with vessel #2's port side.  operator1 was cited for reckless operation and released.

Morgan City                   