The crash was reported on the eastbound side near mile marker 7.1 around 2:10 p.m., in the wake of the afternoon snow storm. It happened between exits for Route 15 and I-83.
Several injuries were reported, though none were life-threatening, authorities said.
Drivers sat in traffic for two or three hours, some without heat, before being reunited with their families or taken to a local firehouse for treatment.
Click here to follow Daily Voice Reading and receive free news updates.