RedactedNarrative: Vessel struck Dodge Island Railroad Bridge causing significant damage to vessel. Upon interviewing the captain/operator stated he was operating toward the bridge at 2.5 Knots. Operator stated that the roof of the vessel obstructed his vision of the bridge causing him to strike the bridge. The vessel has significant damage to the top of the vessel and interior damage as well (see attached pictures). At the time of accident an occupant had an object fall on her head during the collision, she suffered some bleeding and a minor hematoma. She refused medical attention.