I was inside what was left of that in 1995-ish, it was in decent shape still, all concrete, even some old relay parts laying around. You had to walk in a long ways to get to it, which is probably why. I can't tell from current aerials if it's still there, the signal bridge is so maybe, no real reason to knock it down, although it could be more filled in now.
And yes I thought then it was just a foundation to a raised building which is probably why no pictures. It was partially covered with ballast but had a door and maybe a window too. Been too long. The tracks are on an embankment there, and the first floor was about level with the tracks, the track side buried in the embankment, the other side accessible.