A semi-trailer rolled over near the BHP Billiton Yandi site on Monday.
Facebook comments revealed the truck was operated by contractor Fulton Hogan.
It is understood by Australian Mining that the truck was carrying hot bitumen when it tipped into a roadside drain.
A spokesperson for BHP Billiton confirmed the accident, and said that no-one was injured as a result.
BHP Billiton has commenced internal investigations to determine the cause of the incident.
Yandi is an iron ore mine, located in the Pilbara region, 90 kilometres north-west of Newman in Western Australia.