Thanks to my friend Bob Zoellner I recently acquired this track chart scan of the Lebanon Branch. It was published by the PRR in 1964. This was about a decade after the Lebanon-Lytle segment of the CL&N was torn up. The rest of the CL&N to Court Street was still one continuous track, but by this point it wasn’t used as a through route. Instead Lebanon and Mason were served with trains originating in Undercliff Yard routed up the Little Miami to Hageman.
A track chart provides a wealth of information about the physical plant of a railroad’s route. The first line at the very top has the milepost markers. These are the miles from Court Street, before the I&O renumbered the Mason Sub. Between these markers are the number of “feet” in that particular mile. Often because of the inaccuracy of survey techniques in the late 19th century and improvements to the route itself, the number of feet in each mile is not 5,280. Instead it can vary 5,246 all the way to 5,288. This could be an important fact for a hypothetical maintenance guy attempting to buy replacement rail by the foot.
Speaking of rail, the second line shows when the rail was last replaced on that segment of track. No, the ’09 does not mean rail was replaced this year, but instead signifies the rail as last being replaced in 1909.
The only other line on the top is when the line segment was last reconditioned. This can include new ties or ballast. This varies from 1935 near Mason to 1955 in the short section just north of Turtlecreek Bridge.
The lines below start to describe the physical layout of the track itself. The upper half describes the grade of the line and also lists elevation above sea level. For the curious the highest grade on the line near Lebanon is 1.45% near Hageman. However, compared to the rest of the CL&N this is pretty light. The track up the Deer Creek Valley had grades of 3.5%!
Finally we see the track itself. All grade crossings (public and private) are listed as well as bridges and culverts. Active spurs are shown in the chart including the old M&C line that crosses at Hageman. At the very bottom the curvature of the line is listed in degrees of curvature and speed restrictions are also listed (the maximum speed on the entire) subdivision was 20 mph.
So hopefully you now have a basic idea of how to read a track chart. Next week, I’ll be comparing this 1964 chart with one I have from the Conrail years. I’ll end this post with a hint, not as much changes as you might expect.











