Hey, many thanks. I did the edit on the vespucci app. Big fingers :-) But still was kind of thrilling to be able to add "new" stairs in one of the busiest tourist corners of the city.

I did not type that in. Maybe it's the Vespucci app I use which guesses names on it's own from surrounding.
Anyway, this way will disappear as it's stairs and will be merged with the surrounding stairs.
Thanks for having a look at my stuff.

Thanks for the link! I checked other tunnel=culvert things, and I could actually stand in them, even without getting wet feet because the stream was slow. There is no real category to make a difference between a pipe and an water underpass. There are attributes for heigth and width which can be used.