Gill Beck was meant to be level=-1 just under the bridge. I've fixed that. way/512807079 from my (Bing) armchair seems to be combination of path, stone wall and hedge but not a stream. Similarly way/61105718 seems to be a track and a fence (or paddock boundary) with trees.

Hi check out the app osm.wiki/StreetComplete

It was meant to be a driveway_link (chicane) on a path. I was surveying using a mobile phone for the first time and didn't tidy up properly, sorry about that. It's fixed now.