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TRUCK CRASH – DIESEL SPILL – INVESTIGATION ACTIVE

Diesel Spill Shuts Lanes After Big Rig Overturns on 210 Freeway in Claremont

Beverly Law
Published by Beverly Law
September 7, 2026 · 4 min read
210 Freeway near Baseline Road, Claremont, CA
Open Street View ↗
Street view of the 210 Freeway near Baseline Road in Claremont, California, where a big rig overturned and spilled diesel fuel across both directions. Source: Google Maps.
KEY DETAILS
DATE & TIME
The crash was reported to CHP around 12:44 a.m. on Monday, September 7, 2026.
LOCATION
210 Freeway near Baseline Road, Claremont, CA
VICTIM
The big rig’s driver was taken to a hospital for treatment of injuries; a sedan found overturned nearby had an unclear role in the crash.
ROAD CLOSURES
CHP shut down the HOV lanes in both directions and two eastbound lanes near Baseline Road after diesel fuel spread across the freeway.
INVESTIGATION
The California Highway Patrol has not released a cause and continues to investigate the rollover.

A big rig overturned across the center divider of the 210 Freeway in Claremont early Monday morning, spilling dozens of gallons of diesel fuel across both directions of the freeway. The crash was reported to the California Highway Patrol around 12:44 a.m. near Baseline Road, prompting a SigAlert that shut down carpool lanes in both directions along with two eastbound lanes. The truck’s driver was taken to a hospital for treatment of injuries. A sedan was also found overturned near the scene, though its connection to the crash was not immediately clear.

According to KTLA, CHP officials said the lane closures would remain in place until further notice as crews worked to clear the diesel spill from the roadway. The outlet reported that the tractor came to rest on the westbound side, leaking fuel into the HOV lane, with some of it seeping beneath the center divider onto the eastbound lanes. As of the latest update, authorities had not released the cause of the crash or the driver’s condition, and the investigation remains active.

X
KTLA
@KTLA5 · Sep 7, 2026

Diesel spill, lane closures after semi overturns on 210 Freeway in Los Angeles County

ABC7 Los Angeles
Photo: ABC7 Los Angeles
Sep 7, 2026 · View on X

Where It Happened

Eastbound Foothill (210) Freeway just west of Baseline Road in Claremont, Los Angeles County

Interactive map — crash location
Street View — crash location
SOURCESKTLA·ABC7 Los Angeles

What the Law Says

California Vehicle Code Section 23114 requires that any load carried on a vehicle, including liquid cargo like fuel, be secured or covered so it cannot spill, leak, or blow onto the roadway. When a truck’s cargo escapes onto a freeway, as happened with the diesel fuel in this crash, the carrier and driver can be held responsible for the hazard created for other motorists. This law exists because spilled loads are a leading cause of secondary highway crashes.

Because most big rigs are operated by commercial carriers, California Vehicle Code Section 34501 gives the California Highway Patrol authority to enforce safety standards for motor carriers, including vehicle maintenance, driver qualifications, and hours-of-service rules. When a truck rollover happens, investigators often examine whether the carrier or driver violated these safety regulations. Victims injured in truck crashes may have claims against both the driver and the trucking company.

This summary is general information, not legal advice. Every case depends on its specific facts.

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If you lost a loved one in this accident, our attorneys can help you understand your options. Free consultation, English & Spanish, and no fee unless we win.

Editorial note: Beverly Law publishes accident reports as a public service, based on information from official traffic authorities, local news outlets, and public records. If you are a family member of the victim and would like information added, corrected, or removed, please contact our editorial team: intakeassistant5@beverlylaw.org

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