Ground heaters moved into 38 Ave station earlier this week. Drove by today and there was two sets of grounding cables installed just north of 38 Ave. An army of pickup trucks in the station tonight with tents on the NB and SB tracks. I suspect it's Western Pacific working on something do with the signaling system.
Also noticed a Western Pacific truck with a boom lift on a rail cart on the tracks doing something with the catenary around the OMF this morning when I headed out. I can't tell if it was at the end of the bar that transitions between the high load lift section and the regular contact wire, or if it was closer to the switches to enter the yard.
Either way I didn't see any trains south of the Whitemud testing today.