Unable to answer "How many steps are here?" – Steps – https://osm.org/way/168955325 via StreetComplete 58.2:

This particular section is not the stairs.
It's asphalt pedestrian path.
Photo 1 is facing west.
The actual stairs are split in 4 sections.
Only the southmost is currently on the map. 
Photo 2 is facing south, from the same point as photo 1.
Photo 3 is facing west. This is the 4th section with 4 steps, closest to the bridge.

Attached photo(s):
https://westnordost.de/p/228827.jpg
https://westnordost.de/p/228828.jpg
https://westnordost.de/p/228829.jpg