I don't think changing the Hawthorn-Ryhope way to `highway=bridleway` was correct. It is not legally a bridleway. It best described as a multi-user path:
https://www.durham.gov.uk/article/3691/Railway-paths
The previous tagging of `highway=path` with appropriate access tags looked fine to me.
You could also argue for `highway=cycleway` + `foot=yes` + `horse=yes`. Either way, I don't think `designated` is correct since these railway paths are not public rights of ways and Durham County Council could change the access arrangements.
