Traffic is backed up for 2 miles on I-81 South in Montgomery County due to a tractor-trailer crash, according to VDOT.
Authorities said the crash is near mile marker 128.
As of 8:30 a.m., the southbound center lane, right lane and right shoulder are closed.
A tractor-trailer crash has closed all I-81 South lanes in Montgomery County, according to VDOT.
Authorities said the crash happened around mile marker 128.
As of 7:46 a.m., all southbound lanes are closed.