The crash was reported at about 7:30 a.m. on Highway 101 near Highway 880, CHP Officer Marc Johnston said.
The big rig overturned and was the only vehicle involved in the crash, according to Johnston.
The three right lanes of southbound Highway 101 and the ramp from southbound Highway 880 were blocked for nearly two hours by the crash, Johnston said.
A Sig-alert issued at 7:45 a.m. was canceled at 9:15 a.m.
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