The blaze broke out around 5 p.m.
The bridge connects Palmyra, NJ to Philadelphia, and runs over the Delaware River.
Videos of the blaze were posted to Citizen. No word on a reopening.
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Trailer Fire Shuts Tacony-Palmyra Bridge
All lanes of the Tacony-Palmyra Bridge were closed Sunday evening, July 30 after a tractor trailer caught fire underneath it.
Tacony-Palmyra Bridge fire.
Photo Credit: Citizen