An accident involving a tractor trailer shut down both northbound lanes of Interstate 79 in Lewis County Thursday morning.
The accident occurred at approximately 8:30 a.m. at mile marker 92 in Lewis County, just south of Weston.
The Lewis County Sheriff's Department said poor road conditions caused the tractor trailer to slide and turn on its side.
No other vehicles were involved. Two people were in the tractor trailer at the time of the accident but no one was injured.
Both lanes reopened around 11:30 a.m.