UPDATE: One lane reopens after wreck involving multiple tractor trailers on I-81N in Rockbridge County

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ROCKBRIDGE Co, Va. (WDBJ7) -- UPDATE

One northbound lane of Interstate 81 reopens after a wreck in Rockbridge County just north of the Botetourt County line.

Motorists can still expect significant delays in this area as clean-up continues.

ORIGINAL

Both northbound lanes of Interstate 81 are closed in Rockbridge County just north of the Botetourt County line.

VDOT reports there was a crash involving several tractor-trailers near mile marker 174.

Crews are working to remove the vehicles, but estimate at least an hour before a lane reopens. Traffic is currently backed up at least seven miles.

There is a detour in place for I-81 northbound.

Drivers will use exit 168 (Arcadia) in Botetourt County, follow Lee Highway north and rejoin the interstate at exit 175 (Natural Bridge) in Rockbridge County.

Stay with WDBJ7 for updates.