The incident occurred at about 6:05 a.m. when the trailer of a big-rig traveling south on the highway became detached and blocked lanes.
The big-rig was carrying lumber, but CHP Officer Kevin Bartlett said he doesn't believe the load spilled onto the highway.
The two right lanes were blocked for about an hour and a half before the big-rig was cleared at 7:40 a.m.
No injuries were reported, Bartlett said.