Initial dispatch logs at 7:18 a.m. indicated a Camry was pinned beneath a semi-truck, with one person unable to get out of the car.
The CHP requested a hard closure of the on-ramp and issued a SigAlert, which was expected to cause a two-hour shutdown.
Traffic lanes were cleared and fully reopened within approximately 20 minutes, and no injuries or citations were reported.
The on-ramp was fully reopened by mid-morning.
The cause of the collision remains under CHP investigation.