GRAND MOUND, Wash. -- Northbound I-5 is closed this morning (July 3) at the Thurston-Lewis County line while crews clean up used oil that spilled all over the highway.
WSDOT says a tanker truck rolled over just before 5 a.m. The truck was carrying 4,000 gallons of used motor oil, but it's unclear how much leaked onto the roadway.
Troopers said the truck driver was not injured, but has been arrested for suspicion of DUI.
Cleanup could take hours. The state Department of Ecology is helping to clean it up.