10 Freeway Reopens in Pomona After Overturned Semi Prompts SigAlert

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A double trailer carrying gravel overturned on the 10 Freeway in Pomona early Wednesday, prompting the California Highway Patrol to issue a SigAlert that was in effect for several hours.

DoubleTrailerOverturns10FwyPomona

The California Highway Patrol issued a SigAlert after a double trailer carrying gravel overturns. (Credit: Loudlabs)

The semi overturned on the westbound 10 Freeway near Towne Avenue after it was involved in a two-vehicle collision just before 2:00 a.m., spilling its contents into the roadway, according to CHP Officer Alex Rubio.

One person was taken to a hospital for a blood test, Rubio said.

All lanes were blocked as a result of the crash, and a SigAlert was issued around 2:15 a.m., according to the CHP’s incident log.

It was canceled shortly before 6:00 a.m., the CHP tweeted.

The cause of the collision was under investigation.

KTLA’s Crystal Garcia and Justin Burton contributed to this report.