RedactedNarrative: V1 & V2 were traveling in opposite directions going under a very narrow bridge at idle speed. Each vessel needs to be hugging their independent sides of the wall or the boats will not fit through the tunnel.  V1 & V2 both state they were on their own side of the wall when going through the tunnel.  After hitting under the tunnel, V1 yelled at V2 to pull over toward them to talk.  Upon approaching V1, V2 hit V1 two more times causing more damage. There was no alcohol involved.