
I’d been seeing this little stone arch in a field next to IL-123 for a couple years.
Not because I was looking for it, but because it’s on the way to one of closest (to me) parts of Illinois where there’s enough public dirt roads to put in the “recommended” 10 miles of 4×4 driving of a 4runner.

Anyway, it somehow escaped me that this was in fact part of the abandoned railroad line that I already knew was in the area. I just didn’t put 2 and 2 together. Until I ran into it on Bridge Hunter, one of those last great pre-FB, pre-Twitter old school resources on the web. IMO for the (admittedly niche) subject it covers, its up there with any wiki.
The site identifies this location as:
“Abandoned stone arch bridge over Intermittent strean on Abandonded Chicago & Alton Ry”
You can clearly see the “ghost line” of this railroad line on the following images. It is the line running diagonally from southwest to northeast.


Info about the line on Abandoned Rails, another of those great vanishing internet resources:
“This is the famous Jack Line that had one of the last “Doodlebug” runs untgil April 14, 1960. The double- car, motor car with trailing coach, train went daily from Bloomington, Il to Kansas City, MO and return. Trains from each direction met in Louisiana, Missouri. It was possible to make a round trip from Bloomington to Louisiana and return in a day. That was one of the longest doodlebug runs in the country and one of the latest.”

This line was the western side of a triangle that had Bloomington, Roodhouse, and Godfrey at its corners, and included Springfield along its eastern side. This can be seen on the map from the Wikipedia article on the Alton Railroad.

From the points of this triangle, lines connected to Chicago, St. Louis, and Kansas City. So while this location seems remote at present, in the railroad’s heyday it was part of the connections between the Alton’s three principal cities.
So what happened? Well, what happened to many, many midwestern and midsouthern lines. The Alton was absorbed into the GM&O in 1947, which was in turn absorbed into ICG in 1972. In the 80s, ICG spun off most of its not-originally-Illinois Central trackage. They were spun off as shortlines which were eventually purchased by other Class I railroads.
The Chicago to St. Louis main line, through Springfield, is now Union Pacific and is a very busy intermodal route and the route of the Texas Eagle.
The St. Louis to KC branch did not fare as well. It ended up as KCS, and now CPKC. It currently connects KC, St. Louis, and Springfield (via the GM&O “air line”). It is much lower in traffic than the other line. This was the line that, during the CP and KC merger talks, CN tried to buy to extend their ex-IC line (that currently ends in Springfield) to Kansas City.
The third leg of the triangle, which is what we’re discussing here, was completely abandoned between Bloomington and Jacksonville.
Many parts of the line are followed still by roads, power lines, or both.
