Alright. I've eyeballed a pair of barrier=fence ways spanning either end of the bridge which should result in most sensible routing engines avoiding this path whenever they get the update. 

If this is the same footbridge referenced in the following two local news articles then it sounds like the borough had it formally closed as of 2022 until repairs occur, in which case access=no (potentially combination with construction-related tagging) would make sense as long as it is verifiable with the borough.

https://www.republicanherald.com/2022/02/08/cressona-footbridge-scheduled-for-inspection-repairs/

https://www.republicanherald.com/2023/03/16/development-transportation-projects-in-schuylkill-county-awarded-over-44-million-in-state-grants/