According to the State Patrol:
Carmen M. Winkle was driving a Jeep west and collided with the trailer of the semi, which also was westbound. The truck driver, Paul K. Yeboah, 48, of Seattle, was not injured. An infant in the Jeep was not injured. The crash happened at 7:57 a.m.
Winkle was transported to Providence St. Peter Hospital in Olympia.
Westbound state Route 8 was blocked for a short time while troopers set up a detour around the scene. The cause of the crash is under investigation; alcohol and/or drugs were not involved, according to the State Patrol.

