Those Sanborn maps are pretty cool. I like that you can enlarge them to see details easier.

Quote from: trainman203 on March 10, 2026, 09:02:58 PMI don't know how this will reproduce in this form, but this Sanborn map is a view of some long-gone very compact street running switching trackage in my hometown, reminiscent of the 4x8 under discussion. The T&NO comes in from the left. It crosses the vertically running MP several times. The T&NO was in this location at least 20 years before the MP arrived.

https://www.loc.gov/resource/g4014nm.g033751952/?sp=9&st=image&r=0.346,0.184,0.575,0.669,0

Looking at this map raises some questions. There has to be an interesting story here. My understanding is that the later railroad to arrive must pay for any necessary junctions to the existing railroad, and for a tower to control things if necessary. Could the T&NO have purposely added more industrial spurs in order to increase the cost of the MoPac coming to town? How was the issue of T&NO fouling the MP line to serve these industries handled? Did they have to get permission to foul the MP? Or were speed low enough and traffic light enough that visual right of way would suffice?