RedactedNarrative: V-1 operating near southwest corner of Dupont Bridge, east bound. V-1 heading toward bridge piling and V-1 operator releases throttle. Due to off throttle steering  V-1 collided with bridge piling, ejecting V-1 owner/operator. V-1 owner/operator was not injured but did scrape the inside of his right ankle, on V-1 jet nozzle, when climbing back on V-1. V-1 starboard side received severe damage due to collision with bridge piling. V-1 owner/operator refused any medical attention to his ankle.