A 30-year-old woman died early Wednesday after slamming into the back of a semitrailer that had pulled over on state Route 512 in Parkland, according to the State Patrol.
As investigators worked to clear that scene, a suspected drunken driver plowed into the back of a state Department of Transportation vehicle that was putting up signs.
The first crash occurred about 2:30 a.m. in the eastbound lanes near state Route 7.
Troopers said Kati Shackelford, who was driving a Volkswagon GTI, did not hit the brakes before striking the back of the semitrailer. She was traveling at least 60 mph.
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It’s unknown whether Shackelford did not see the truck or whether she was impaired.
About a quarter-mile west of the scene, a WSDOT worker was setting up a sign warning drivers of the slowdown when she noticed a vehicle driving straight toward her.
The worker was able to dive over a barrier before a Honda CRV plowed into the back of the WSDOT truck, which had its emergency lights flashing.
The 21-year-old driver in that collision suffered minor injuries but her passenger was taken to the hospital with serious injuries, including a broken leg.
The Puyallup woman was believed to be intoxicated and was booked into Pierce County Jail on Wednesday night on suspicion of vehicular assault.
All lanes reopened about 6:20 a.m.
Staff writer Kenny Ocker contributed to this report.
Stacia Glenn: 253-597-8653