At 12:17 p.m., the couple was walking west on the south side of Third Street and was crossing Hetherton Street in a crosswalk when a loaded dump truck traveling west on Third Street turned left onto Hetherton and struck them, San Rafael police spokeswoman Margo Rohrbacher said.
The woman, identified as 67-year-old Olga Rodriguez, died at the scene and the man was taken to Marin General Hospital with major injuries, Cpl. Justin Graham said.
Both the pedestrians and the truck had a green light but the driver should have yielded to the pedestrians, according to Rohrbacher.
The truck driver said he didn't see the couple in the crosswalk, but stopped after he heard a sound and looked in his rearview mirror, Rohrbacher said.
Graham said it appears that alcohol is not a factor in the collision. It took place in a busy section of city streets, and San Rafael police are asking any witnesses to call them at (415) 485-3000.