(o)T(o) at ends of paved two-lane bridge in Johnstown, PA?

[Robert_Gift]

Does anyone recall a two-lane paved bridge which had crossing signals at each end of the bridge?
It was a combination traffic and railroad bridge.
A track curved onto the bridge, crossed the river and off the other end of the bridge.
The crossing signals looked so strange athends of the bridge.

As a child I recall seeing it from an train heading from Pittsburgh to Philadelphia.
Looking at recent aerial photos of Johnstown, I cannot find it.

Or is it Allentown? Not sure that Amtrak goes through Allentown.

Thank you.

Robert