I’m down here in deep CSX “Bone Valley” local territory and I see a lot of BNSF, UP, NS, and leasers on CSX. (West Central Fla). Back home in Texas (Ft Worth) , I see BNSF on UP and vice versa quite often.
I guess it just depends where in the country you are. Here in AZ, you have UP and the BNSF. They have thier own routes, own yards all on different ends of the state. In fact, the only way the connect is a 5 mile section of track the connects the two yards.
They pretty much stay on there turf as far as I have seen. Maybe back east or in other parts, with more systems overlapping, it would be easier for power shareing to take place.
With the UP here, it is pretty much pure yellow and grey with the exception of some poor abused SP unit. Maybe some leased engine. With BNSF it is not uncommonm to see out of state vistors that come down the line from Flagstaff off the TransCon into Phoenix. I have seen some NS and even a couple of KCS’s too
Sounds very normal to me. Last year when I was at the UPRR loco repair shop in Hinckle OR I saw a BNSF war bonnet their waiting to maintained by the UPRR. [:o)][:p][:)]
Every once in a while I might see just one or two and then nothing for an extended time.
BNSF Power around here is very scarce on this line.
BNSFrailfan.
Power gets swapped between railroads when they run through trains to each other. Since the BNSF and Up are parallel compeditors, they don’t interchange that many trains on run throughs, so there is less opportunity to exchange power.
On the other hand, both the UP and BNSF have run through trains with the NS and CSXT so the chances of an east-west mix are higher.
dehusman hit the nail on the head. UP has a lot more run through with CSX and NS back east than it does with BNSF. And the same goes for BNSF with CSX / NS vs UP.
Therefor you will not see as much UP on BNSF and vice versa.