RedactedNarrative: Operator's vessel was struck by a drawbridge because he failed to adhere to MA Code of regulations "A motorboat shall not be operated at more than headway speed when the operator's vision is obscured under a bridge, or by bends or curves, or in any other manner, Navigation Inland rules 2,4 and 5, and did not maintain a proper lookout.  This particular bridge works on a signal system.  When hailing this bridge from a boat by VHF radio you use channel 13.  Operator's radio was on channel 18 when vessel was inspected after the crash.  Operator did not speak to the bridge operator and the bridge operator did not recall speaking to this vessel.  Multiple vessels can call for an opening however only one vessel gets logged as requesting.  Operator admitted to not seeing or wasn't looking for the signal lights at the draw bridge.  Witnesses stated that operator was proceeding towards draw bridge when the signal light was illuminated red.  Operator was cited for failure to adhere to navigation rules.