Metra Milwaukee Service west to Elgin passes under the Pennsy style signals at CP-Morgan 1.5 miles west of Chicago Union Station. The signals have been replaced but the bridge remains.
A continuously growing album of photos that IMHO reveal the awesome and seldom-seen beauty of the railroad world from the dimming of day to dawn's early light! From dusk to dawn, trains roll on! (I'm still finding gems of sunset-to-sunrise surprises!)