^Those are really nice shots to show the current status of the bridge construction- which pretty clearly isn't where the work is happening this weekend. They also show clearly why the bridge prevents use of double track between Agincourt and Milliken....
Just a theory, but next time someone might check the locations where the track "zigged" between east and west tracks. One suspects that the work blocks are to remove these, creating a single straight-through track alignment. That might at least finalise double track from the Highland crossovers south to Oakworth, which is just north of Kennedy station.
- Paul