There's a "Pipe Line Track" in the near vicinity, but it's not that.
Now you've gone too far north.
Hmm - Pipeline Track, Baroota maybe. Nice looking spot by the Baroota Creek.
Still too far north. Also not on any road marked "pipeline track". There is a reservoir associated with the pictured pipe, but it's not Baroota.
Hurrah, finally someone has got it. The location is roughly here.
Your turn :-)
Looks like flood damage. I will guess that somewhere that feeds into the NE section of River Torrens Linear Park. Narrows it down to several km!
A dot on the map please, not a broad smudge! ;-)
4th creek up by Leabrook Drive Rostrevor.