UPDATE 11:15 p.m.: One lane of traffic has opened at mile marker 159.5 on I-81 north in Botetourt County where a tractor-trailer crash continues to be cleaned up.

Delays of around three miles are still being reported.

UPDATE 10:20 p.m.: Backups are now approximately three miles behind a tractor-trailer crash at mile marker 159.5 on I-81 north in Botetourt County.

All northbound lanes are still shut down due to the crash.

Drivers will need to find an alternate route or risk getting caught in the increasing backups.

UPDATE 9:45 p.m.: VDOT is reporting that traffic behind the tractor-trailer crash on I-81 north at mile marker 159.5 is listed at approximately two miles.

The crash is blocking all northbound lanes in that area.

BOTETOURT COUNTY, Va. (WFXR) – A tractor-trailer crash has shut down all northbound lanes of I-81 in Botetourt County.

VDOT says the crash is at mile marker 159.5 south of Buchanan.

Drivers are urged to find another route around this crash.