View to the Northeast from 21st Street Bridge, 1961

Showing congested movements of trains in and out of Union Station. Note curvature of tracks, ground signals, overhead signals and hand signals prevail here. Note positions of engines as to who can best observe signals. Engines moving in and out of this yard and at times is heavily congested and takes two pairs of eyes to observe conditions to front and rear of engines. This view is also to the east from atop the 21st Street viaduct. Notice the movements of trains and engines in the center of the photograph and the road engine in the lower right. With respect to the engine and cars on the left side of the photograph, hand signals are passed on the fireman's side. Also notice the movements of trains under the bridge signal in the center of the photograph. Close clearances and sharp curves in this plant along with crossovers, ground signals and bridge signals require a lookout by both enginemen.