This map seems out of date this quite inaccurate.

via StreetComplete 63.2

Attached photo(s):
https://streetcomplete.app/p/360181.jpg
https://streetcomplete.app/p/360182.jpg
https://streetcomplete.app/p/360183.jpg
https://streetcomplete.app/p/360184.jpg

Unable to answer "What’s the surface here?" – on bridge: Sidewalk – way/915559919 via StreetComplete 63.2:

This is a wooden bridge

Attached photo(s):
https://streetcomplete.app/p/356521.jpg