[12-10-2025] Colusa County, CA – Major-Injury Crash Involving Semi-Truck and Box Truck Closes SR-20

A major-injury crash involving a semi-truck and a box truck shut down State Route 20 for several hours east of State Route 16 in Colusa County on Wednesday morning, December 10, 2025.

According to the California Highway Patrol, the collision was reported around 6:40 a.m. after an SOS alert was transmitted from an Apple device.

The two trucks collided head-on, blocking both lanes of SR-20. One person sustained major injuries while another suffered minor injuries, authorities said.

Officials noted that one of the trucks was hauling approximately 15,000 pounds of lumber, requiring heavy wreckers to assist with removal. By 8 a.m., traffic was reduced to one-way control as crews continued clearing the scene.

The cause of the crash remains under investigation.

Contact Our Truck Accident Lawyers In Colusa County, CA

Collisions involving large commercial vehicles, such as semi-trucks and box trucks, can lead to significant or life-threatening injuries due to the size and weight of the vehicles involved. These incidents often prompt detailed investigations that focus on roadway conditions, vehicle movement, cargo load, and the sequence of events leading up to the impact.

Our truck accident lawyers in Colusa County can help explain how California law evaluates commercial vehicle collisions and what information may be important as the investigation progresses. Legal guidance may also assist with reviewing official reports, organizing medical or insurance documentation, and communicating with insurers throughout the process.

If you or someone you know has been affected by a commercial truck accident, you may contact us at (888) 488-1391 or fill out our “Do I Have A Case?” form for a free initial consultation.

What To Do After A Commercial Truck Collision

Taking clear steps after a serious truck-related crash may help preserve important information and support the investigation.

1. Call 911 And Request Emergency Assistance
   Emergency responders can assess injuries, secure the scene, and create an official report that may help clarify what occurred.
2. Document The Scene And Vehicle Damage
   If it is safe, take photos of the roadway, vehicle positions, cargo spills, debris, skid marks, and nearby signage. These details may help explain the environment at the time of the collision.
3. Gather Witness Information
   Collect names and contact details from anyone who saw the crash or its aftermath. Their statements may help establish the sequence of events.
4. Keep Medical, Insurance, And Law Enforcement Records
   Save treatment summaries, hospital bills, police reports, Caltrans or CHP updates, and correspondence with insurers. These materials may be important when evaluating the effects of the incident.
5. Consult With Truck Accident Lawyers
   Truck accident lawyers in Colusa County may help you understand your rights, review available evidence, and outline possible next steps. Legal support may also assist with organizing key documentation and navigating communication with insurers.

I HAD AN ACCIDENT

Truck Accident Statistics

Large trucks play a crucial role in transporting goods across the country, but their size and weight can make collisions particularly severe for occupants of smaller vehicles. Data from the National Safety Council (NSC) indicate that in 2023, approximately 5,375 fatal crashes involving large trucks occurred, representing an 8.4 percent decrease from the previous year.

Even with this short-term decline, the long-term trend continues upward. Over the past ten years, fatal crashes involving large trucks have increased by 43 percent. This steady rise indicates that large truck collisions continue to be a significant safety concern on U.S. roadways.