RedactedNarrative: On May 17, 2015, at approximately 9:30 pm, Vessel-1 (V1) was underway on Escambia Bay reportedly operated by vessel owner. There were no other occupants on board V1. V1's course was northeast at the I-10 Bridge. V1 was on plane, traveling at approximately 17-25 mph. Due to darkness there was limited natural light. The operator failed to navigate V1 under the bridge structure and struck two concrete pilings. The bridge structure was constructed in a cluster of 5 concrete pilings. V1 impacted the south west corner of the 4th piling on the south west corner and 3rd piling on northwest corner. V1’s point of impact was the bow with secondary impact on mid ship starboard. V1 sunk at pilings as result of impact. The operator sought refuge on V1's upper control tower. On May 18, 2015, at approximately 10:20 am, the operator was discovered by a fisherman. The operator was transported by Life Guard Ambulance Service Helicopter to Sacred Heart Hospital for treatment.V1, Vessel operator sustained a broken jaw, broken nasal cavities, punctured lung, head and face contusions, lacerations to the face, forehead, and arms. Point of impact by operator with exception of steering wheel could not be determined.