RedactedNarrative: Vessel was traveling northbound in East River and failed to stay in the channel.  Operator failed to see that there was a low fixed bridge ahead.  Vessel struck the bridge with its mast up.  No injuries occurred.  No damage to the bridge.  The vessel experienced extensive damage to its mast and deck.
NameOfBodyOfWater: EAST RIVER
NearestCityTown: New York