Unable to answer "What surface does this road have?" – on bridge: Track / Land-Access Road – https://osm.org/way/914478973 via StreetComplete 63.0:

There's no bridge here. The path ends at the river. It might be possible to cross here if the water level is very low. As of writing this, crossing is impossible.

Attached photo(s):
https://streetcomplete.app/p/335866.jpg
https://streetcomplete.app/p/335867.jpg