Could someone help determine what type of intersection exists between this highway and this waterway?

Could someone help determine what type of intersection exists between this highway and this waterway? It looks like it could be a culvert but I'm uncertain.

Could someone help determine what type of intersection exists between this highway and this waterway?

Way with ID 507908889 should not have a building=yes tag since it encompasses multiple structures over a large area. Could a local mapper correct this? Thank you.

Based on available sources, it's difficult to determine what type of crossing this should be (e.g. bridge or culvert). Could someone help out?

Could someone with access to ground truth/local knowledge resolve this highway-waterway intersection? Thank you.

I'm unsure about whether this way with foot=designated should have a highway tag.

I'd like to resolve this service road-footway intersection issue but it's difficult to confirm the existence of the footway.

Could someone with local knowledge resolve this duplicate track? It seems to me that track with ID # 248426141 is a duplicate that should be removed. Thank you.

Could someone with local knowledge please resolve this duplicate track? Thank you.