Officials continue to clean up a fuel spill from a Friday morning tanker truck wreck on Highway 99W near Adair Village.
Cleanup efforts are expected to continue through the weekend, Benton County Undersheriff Greg Ridler said.
Oregon Department of Transportation officials are expected to keep flagging traffic through the Highway 99 northbound lane at milepost 74.5, Ridler said.
NWFF Environmental, an incident response company in Philomath, was cleaning up the spill, the undersheriff said. Angela Beers Seydel, a spokesperson for ODOT, said crews were pumping fuel off the roadway and into another tanker.
The Kenworth tanker tipped onto its side into the southbound lane about 1:14 a.m., spilling fuel into the ditch, Ridler said. Several passersby called 911 to report the wreck. Deputies believe driver inattention caused the crash, the undersheriff said. There is no indication of drug or alcohol use, he said.
The tanker had been carrying about 11,000 gallons of diesel fuel. Ridler said he wasn't sure how much of that fuel had spilled.
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The driver of the tanker suffered minor injuries in the wreck, he said. No other vehicles were involved.
Beers Seydel said travelers should expect delays and be aware of work crews in the area.
Drivers can check TripCheck.com or call 511 for current road conditions.