I was at Doncaster station on the afternoon of 2nd December and saw a lorry arrive adjacent to the West Yard, loaded with wood for the temporary deck structure laid on ballast covering the rails in West Yard. I was confused as to what was happening!
I saw the crawler crane when I was there on Saturday; a very impressive beast. Apparently it's a Leibherr 1600 which can lift up to 600 tons.
https://www.weldex.co.uk/equipment
The new and old footbridge are seen side by side on 23rd December:
https://www.flickr.com/photos/alanpadley/55002897928/ (Photo: Alan Padley)
The crawler crane from a different angle:
https://www.flickr.com/photos/alanpadley/55002899738/ (Photo: Alan Padley)
In addition to the Wabtec site, the footbridge also provided access to the aesthetically pleasing red-brick 2-storey railway offices seen in the pictures alongside West Yard (I've forgotten their name... something house?). In the early 2000s these were used by EWS for staff training, recruitment e.t.c. before being vacated. I'm not sure what if anything goes on there now. The upper rooms had a nice view of the goods lines and I always thought it would be a good place for a spectacularly big model railway running the length of the building if a few walls were knocked through. Alternatively I could live there in luxury, occupying the entire building (very convenient for the station and town centre) and use the space for endless bookshelves...
The Wabtec site is bounded by the railway and river on two sides, but new housing has already been built on parts of the old Doncaster Works bordering the Wabtec site, and I wouldn't be surprised if the same thing happens to the Wabtec site itself eventually.
There are rumours of increasing station capacity with a plan for an extra platform to be built on the site of West Yard, fact or fiction?
In an ideal world there would a couple of platforms where West Yard is, leading to a flyover across the main line to segregate Sheffield - Cleethorpes traffic from the ECML, but I think this was already discussed in another thread and there's no feasible way of doing it given the two road bridges over the railway north of the station. An extra platform on the site of West Yard might be useful (to allow trains from Sheffield to enter the station regardless of what is occupying 4 or 8) but I'm not sure that the business case would be compelling.