GRAND MOUND — Northbound Interstate 5 was reopened early Wednesday afternoon after a tanker truck crashed, dumping 1,800 gallons of used motor oil near the Thurston-Lewis County line.
It closed the major highway artery around 4:30 a.m. Wednesday and for nearly eight hours.
The tail end of the dual-tanker carrying a total of about 4,000 gallons of oil flipped and blocked three lanes of I-5 traffic.
Officials with the Washington State Patrol, Washington state Department of Ecology and Washington Department of Transportation detoured traffic around the crash scene where authorities said the driver was arrested and under investigation for driving under the influence.
The tipped tanker was righted by tow trucks and towed from the scene. Ecology officials also cleaned up the oil spread for three miles by vehicles behind the crashed vehicle. Ecology checked for environmental impacts by oil that ran off the interstate.