Went to a presentation about locks and bridges

The boat is 400 feet long. Draft (measuremt from waterline to bottom) is 5.5 feet. Height is.....ah, it's in the slide below. Width is 36 feet? Just barely enough to squeeze through the 12 meter locks, anyway.

And sometimes the water height is too high for the boat to get under a bridge, or too low for the boat to stay afloat through a particular area. One of their solutions is for the Amsterdam-to-Budapest people to switch boats with the Budapest-to-Amsterdam people on the other side of the problem area. Apparently they run reverse cruises so that should in theory always be a solution to a water height problem.

Some slides from the presentation we just went to: