The Clark County Fire Department said a few pieces of machinery outside a plant may have caused a fire in Winchester.
Firefighters said a driver on I-64 saw the fire and called 911.
Crews found a lot of smoke and flames behind the Hancor Building.
They said 75 pallets of plastic drain tile were burning when they arrived along with a couple heat exchangers on the roof.
Crews said the fire was heavy when they arrived and it took about an hour to get it under control.
Firefighters said no one was hurt.
The exact cause of the fire is still under investigation.