Just South of Humboldt
SD40A 6021 leads a southbound train on the Illinois Central "Main Line of Mid-America". This image was made just south of Humboldt, between Arcola and Mattoon. The bridge carries the mainline over a stream called the Flat Branch.
The Illinois Central was the only railroad that owned the SD40A—which was an SD40 built on a SDP40/45 frame to accommodate a larger fuel tank (of 5000 gallons).
Image by Richard Koenig—made on July 3rd 1976.












