ABB125
Established Member
One that might count, which I came across yesterday when reading one of the excellent Ringways articles on the roads.org.uk website is where the A12 takes a 90 degree turn and the carriageways split oddly (since a large free-flowing interchange was planned here) to the west of Hackney Wick.
Hopefully this link will take you there.
Dropped pin
Near A12, London
maps.app.goo.gl
Where the "northbound" carriageway passes under the GOBLIN it does so almost through a tunnel. The bridge was built like this apparently because there were some sidings/a yard at this location. Long gone of course, and surprise surprise the land has been sold off.
Hopefully this link will take you there.
Dropped pin
Near A12, London