The collision occurred around 4:15 p.m. about one mile east of Index when a westbound car crossed the centerline and struck a Ford F-250 pickup truck, Washington State Patrol trooper Mark Francis said.
The accident tied up traffic for hours. The road was reopened at about 8:30 p.m.
The driver of the car, a four-door Mercedes, died at the scene. The car reportedly was being driven erratically before the collision, Francis said.
His passenger, a pregnant woman, was taken to a hospital with serious injuries, he said.
Three men in the pickup truck also were taken to hospitals.
Names, ages and hometowns of the people involved in the crash were not immediately available.
More Local News Headlines
Former sergeant admits he helped launder prostitution money Brief visit by Obama expected to snarl Seattle traffic Possible norovirus outbreak at Colby living facility Shirley Gilbertson loved her temp job so much, she stayed on for free Conferees shape leaner budget for military pay, benefits Front Porch: Jackson volleyball hosts fundraiser Applause In Uniform
Our new comment system is not supported in IE 7. Please upgrade your browser here.