Rail traffic over the Panhandle Bridge declined as passenger trains were discontinued, and Amtrak became the only regular user of the bridge from 1971 to 1979, when the New York-St. Louis-Kansas City National Limited was discontinued on October 1 of that year.

PAT (as the Port Authority system was known at the time) light rail cars began using the bridge on July 7, 1985.

The bridge has two tracks, carrying the Blue, Red, and Silver Lines of the Pittsburgh Light Rail system.

The tracks connect to the former Pittsburgh & Steubenville Extension Railroad Tunnel to the north, which now carries light rail trains toward their northern terminus at Allegheny station.

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