I decided to go on safari and had a look at things from Ararat through to St Arnaud yesterday. Took lots of photos - link below.
has already mentioned, the track from Ararat to Maryborough is effectively being rebuilt save for the rails and the formation. The existing line has mostly now gone as far as Elmhurst as well as at varous locations along the rest of the line to Maryborough. All the Concrete Sleepers that had been stockpiled at a yard in Grano Street Ararat have gone and have been distributed along the line. The discarded wooden sleepers are being piled up at many locations.
Burn Street Ararat (on the edge of town) seems to be the starting point as nothing on the Ararat side of that has been disturbed. Relaying has started and goes about 1km so far. Beyond that things are in varying states as it progresses, from clear graded formation ready for tracklaying, to some places that haven't been touched.
There is no sign of any work for the Ararat Triangle / Maroona Connection yet, no earthworks, no survey pegs.
About 20 yellow (ballast?) hoppers are sitting in Ararat yard, beside a huge ballast pile, as well as a couple of very new looking track machines.
Maryborough is currently down to just two roads, the rest of the yard is fenced off with several yard tracks partly or completely gone. The signal facing the Ararat line just short of the junction is still lit (Red) and presently has no track near it!! I wonder if it will survive?
Lots or workers at the south end of Dunolly, but too far from any legal access to see what they are up to. At least one set of points at the north end has been removed. Interestingly, a STOP sign, with flashing lights, was sitting in the 5 foot just beyond the highway crossing on the Sea lake line - about 1km beyond the junction - no sign of why.
St Arnaud looks like it might be losing all the siding connections.
A track machine was in the Platform at Bealiba - presumably arrived by road.
Photos here (excuse the amateur photographer).https://flic.kr/s/aHsm5Us79G
I wont be able to attempt a follow-up as I will shortly be leaving the country for 4 months (I would if I could!!).