It was taken down in 1989 i worked with Gallagher for 25 years until they made everyone redundant in 1994. ......A bit later Phil, it was built in 1968 and like Camp Hill was a 'tempory measure' but lasted until taken down in 1998. When this view was taken it still had two years to go.
This one. https://www.flickr.com/photos/brizzlebornandbred/4432658410Walt
I think in the case mentioned by motorman-mike he was referring to the similar flyover constructed at Temple Meads in Bristol.