RedactedNarrative: The vessel was traveling West bound on Lake Harris near the Yalaha shoreline. Witnesses on a dock stated the boat was traveling at a slow rate of speed and collided with a concrete dock. After the collision the boat came to rest in shallow water near shore. Operator advised he doesn't remember the accident as he fell asleep or passed out. The dock that was struck had superficial surface damage to the concrete on the dock. The vessel had fiberglass damage in the bow portion of the boat.; Operator recieved an injury to his head during the accident. It appeared that Operator made contact with a fixed object in his boat that caused the injury, after he had struck the dock with his boat.