As I was getting ready to ballast my layout, a thought came to me… Which railroad would ballast and maintain the interchange track connecting the two lines? I’m sure it varied line to line. Any thoughts? My expectation is that the line my RR is interchanging with is the BN, formerly CB&Q.
Thanks in advance…
Varied from location to location with no pattern, according to the agreement that pertained to that track. Usually each railway will own and maintain the turnout that comes off their track into the interchange track (at either end). And usually any division of ownership will occur not closer than the fouling point to one of the turnouts, or at the edge of right-of-way. But other than that, no pattern – sometimes it is split 50-50, sometimes the whole track (beyond fouling point) is maintained by one of the railways. Sometimes when there are paired tracks (1 for Road A to Road B, the other for Road B to Road A), each maintains one of them.
RWM
One railroad owns the track or is responsible for the maintenance. If the BN/CBQ owns the track they maintain it. If the other railroad owns the track, they maintain it.
To add to Dave’s reply if the interchange track wasn’t maintain by the owning road then the connecting road could and would embargo the interchange track.
I know we cover the interchange that is old Missouri Div Jct.But IAIS maintains the mainline and the switch.IIRC at Zearing we let the road we sold the line to take care of the “yard” or half of it. Cant remember there.
All depends on the road and like Brakie says,if the one road isnt taking care of it were up to me I am going to embargo it. No sense me getting guys hurt or equipment damaged because they wont take care of the track.
Btw welcometo the forums! What area of the BN are you modeling?
Many thanks for the input. Now it’s up to me to decide which RR owns what. 
Still working on exactly which area. I like MRL as well. I may locate in Montana for a good portion of my RR. The section I am working on right now is flatland with a set of grain silos as the main industry in town. The second section is more of a town/city area. There is a stretch of track going through the closet in between the two sections. I ultimately want a section that is clinging to the side of the cliff with the train ducking in and out of tunnels all along and climbing while doing it. That is a long ways off though. Working very slowly on the layout between two little ones, a house, volunteering with the ambulance,… N is my main scale and G is my secondary. Have two loops around the walls of the one room in HO for the kids. No scenery. G is boxed up until I can get the time and $ to work on it.