@NYC Fan posted:
The structure in the background is the New York Central lift bridge over the Calumet River. It would be to the east of the Pennsy mainline.
The structure still exists today.
This photo is looking west. The Pennsy bridge, still used by Amtrak, can be seen on the other side of the NYC bridge, which is no longer used and left in the up position.
Would you suspect that the PRR and NYC drawbridge operators may have raced, too? Not as spectacular as the trains racing, but Home Road pride extends throughout the railroad.