I came across this scene today and took the pictures below. It happened on the I95 overpass in Smithfield, NC.
In the picture, you can see the driver letting the air out of the tires.
The boat was not damaged so the driver must have stopped in time. But if the driver was that alert, I can't help wonder what he was doing out there in the first place. The minimum clearances on I95 must be published someplace.