A tractor trailer driver is facing a careless driving charge after his truck went into a ditch along Highway 400.

It happened around 3:00 a.m. Wednesday when police say the southbound tractor trailer went through the guard rail and down the embankment just south of Highway 89.

There were lane reductions for most of Wednesday while heavy tow crews worked to pull the truck out of the ditch. 

Police are blaming the crash on driver error, but it's unclear why the tractor trailer crashed through the guard rail.