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The wreck happened in the westbound lanes near Exit 71 (PA 33) around 2:35 p.m., said PennDOT on the 511pa website.
The closures were still in effect as of 3:30 p.m.
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I-78 Crash Slows Traffic In Lehigh Valley: PennDOT
All lanes of Interstate 78 are closed in Williams Township after a crash near the New Jersey border, according to transportation officials.
Pennsylvania State Police; traffic on I-78 on Monday, July 22.
Photo Credit: PSP Instagram // PennDOT