RedactedNarrative: On 03/15/16 at approximately 1:40 pm a single vessel accident occurred on the Intracoastal Waterway (ICW), within Volusia County, Florida. V1 a (description of vessel)i.e. 40’ cabin cruiser, occupied by two adults. V-1 was traversing the ICW south approaching the L.B Knox Bridge a draw span type bridge. V-1 reduced speed to approximately 5 mph and the operator sent the passenger to check for clearance on bridge. 
  
  Passenger reported that only VHF antenna would have contact with bridge. V-1 was traveling too fast and the operator could not reverse course V1’s superstructure allided with the bridge.  V-1's radar arch detached partially and raked the underside of the bridge. This caused damage to the bridge's centerline navigation lights on the north side of the span and damage to V-1's radar arch. V-1 continued south passing underneath the span and anchored south of the bridge to await authorities.
  
  Interview of the operator of V-1 I gathered the following information:
  He thought that the bridge was supposed to open automatically.
  He was unaware he was required to radio the bridge for an opening if required. 
  Interview of witness I gathered the following information:V1 appeared to be traveling to fast to go under bridge and it made contact with underneath of bridge.