BOTETOURT COUNTY, Va. – UPDATE
This crash is cleared.
Drivers can expect delays on Interstate 81 South in Botetourt County on Monday night.
A tractor-trailer crash near mile marker 150 closed several lanes of traffic and is causing major congestion.
As of 10:59 p.m., traffic was backed up about five miles, and the southbound right lane and shoulder were closed, according to VDOT.