Location of CB&Q 4-6-2 No. 2930

There is an excellent photo of CB&Q 2930 heading up a suburban train in the Photo Of The Day section. Does anyone recognize the location? When were the lower quadrant semaphores replaced on the Chicago-Aurora mainline?

Sorry, don’t know the location. The engine pictured is 2931 (not 2930 as captioned). The first car appears to be a RPO-baggage car. Suspect this may not be a suburban train. The ‘semaphores’ look more like train order signals.

Agreed that the train is probably not a suburban train. I don’t think the signals are TO signals though. They appear to be ABS.

The pic is

http://ctr.trains.com/en/Online%20Extras/Photo%20of%20the%20Day/2011/10/Burlington%20Route%20suburban%20train.aspx

The signals aren’t ABS, and seems unlikely they’re TO signals. Why not just interlocking signals?

Why do you say they aren’t ABS? I don’t think they are interlocking signals because of the close proximity to the tower and they are single head. The CB&Q did not have any simple crossings in the Chicago area where a one head signal would suffice. The interlockings, for the most part, were at crossover locations which had two or three headed signals. There is a structure which appears to be a portion of a signal bridge in the background between the signal mast and the tower. That would be a more likely location for interlocking signals.