One person was seriously injured, and another was life-flighted to Seattle, after a semi-truck and van collided on Interstate 5 in Thurston County this morning, according to Trooper Kameron Watts with the Washington State Patrol.
Witnesses told WSP that the transporter van drifted off the roadway and into the back of the parked semi on the right shoulder.
Southbound I-5 to SR-121 (Exit 99) was blocked following the collision.
Trooper Watts shared a photo of Thurston County emergency responders and a helicopter, adding, “A tech is en route the collision scene. Unknown ETA on when the ramp will reopen.”
SB I-5 to SR-121 (Exit 99) is blocked for a 1 transporter van-semi collision. Two are being transported with serious injuries with one being life flighted to Seattle.
— Trooper Kameron Watts (@wspd1pio) March 25, 2026
Witnesses say the van drifted off the roadway and into the back of this parked semi on the right shoulder. pic.twitter.com/mMr3rBKH48
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