San Diego, December 9, 2025
A fatal collision occurred on northbound I-805 near University Avenue, involving a big rig and several vehicles, leading to one death and major traffic disruptions. The California Highway Patrol is investigating the incident while traffic delays affected commuters in the area.
San Diego, CA – Fatal Multi-Vehicle Crash Involving Big Rig on I-805
San Diego, CA – A fatal multi-vehicle collision occurred early Sunday morning on northbound Interstate 805 (I-805) near University Avenue, involving a big rig and multiple other vehicles. The incident resulted in one fatality and significant traffic disruptions.
Details of the Incident
The crash took place around 2:50 a.m. on December 7, 2025, when a big rig collided with several vehicles on the northbound lanes of I-805, south of University Avenue. The California Highway Patrol (CHP) responded promptly to the scene. A SigAlert was issued at 3:37 a.m., leading to the closure of the transition road connecting northbound I-805 to northbound State Route 15. The exact number of vehicles involved and the circumstances leading to the crash have not been disclosed. The identity of the deceased has not been released pending notification of next of kin. An investigation into the cause of the collision is ongoing.
Traffic Impact
The closure of the transition road caused significant traffic delays in the area. Commuters were advised to seek alternative routes to avoid congestion. The SigAlert was lifted after several hours, allowing normal traffic flow to resume.
Background Context
Multi-vehicle collisions involving big rigs are a serious concern due to the size and weight of these vehicles, which can lead to severe accidents. In San Diego County, such incidents have resulted in fatalities and injuries in the past. For instance, in July 2025, a multi-vehicle collision on State Route 163 resulted in one death and one injury. Authorities continue to investigate the causes of these accidents to enhance road safety and prevent future incidents. Drivers are urged to exercise caution, adhere to traffic laws, and remain vigilant, especially when sharing the road with large commercial vehicles.
Related Incidents
- July 2025: A multi-vehicle collision on State Route 163 resulted in one death and one injury.
- August 2025: A two-vehicle collision in Chula Vista led to two fatalities and three injuries.
- May 2025: A Cessna Citation II aircraft crashed in the Murphy Canyon neighborhood, resulting in six fatalities and at least eight injuries on the ground.
Safety Recommendations
In light of recent incidents, the CHP recommends the following safety measures for all drivers:
- Maintain a Safe Following Distance: Keep a safe distance from large vehicles to allow ample reaction time in case of sudden stops or maneuvers.
- Stay Alert: Avoid distractions and remain attentive to the road, especially when driving near big rigs.
- Obey Traffic Signals and Signs: Adhere to all traffic laws to ensure the safety of all road users.
- Report Reckless Driving: If you witness dangerous driving behavior, report it to authorities to prevent potential accidents.
By following these guidelines, drivers can contribute to safer roadways and help prevent tragic accidents involving large commercial vehicles.
Frequently Asked Questions (FAQ)
What happened in the San Diego multi-vehicle crash?
The crash occurred early Sunday morning on northbound I-805 near University Avenue, involving a big rig and multiple other vehicles. The incident resulted in one fatality and significant traffic disruptions.
What caused the crash?
The exact cause of the collision is under investigation by the California Highway Patrol. Details regarding the circumstances leading to the crash have not been disclosed.
How long was the traffic disruption?
The SigAlert issued for the closure of the transition road caused significant traffic delays for several hours. The alert was lifted after the situation was resolved, allowing normal traffic flow to resume.
Have there been similar incidents in the area?
Yes, there have been previous multi-vehicle collisions involving big rigs in San Diego County, resulting in fatalities and injuries. For example, in July 2025, a multi-vehicle collision on State Route 163 resulted in one death and one injury.
What safety measures are recommended for drivers?
Drivers are advised to maintain a safe following distance, stay alert, obey traffic signals and signs, and report reckless driving to authorities to enhance road safety.
Key Features of the Incident
| Feature | Details |
|---|---|
| Location | Northbound I-805 near University Avenue, San Diego, CA |
| Time of Incident | Approximately 2:50 a.m. on December 7, 2025 |
| Vehicles Involved | Big rig and multiple other vehicles |
| Fatalities | One confirmed fatality |
| Traffic Impact | SigAlert issued; transition road to northbound State Route 15 closed; significant delays |
| Investigation Status | Ongoing by California Highway Patrol |
Deeper Dive: News & Info About This Topic
HERE Resources
Fatal Multi-Vehicle Crash Involving Big Rig on I-805
Fatal Multi-Vehicle Crash Involving Big Rig on State Route 805
Fatal Multi-Vehicle Crash Involving Big Rig on I-805
Fatal Multi-Vehicle Crash Involving Big Rig on State Route 805
Fatal Multi-Vehicle Crash Involving Big Rig on I-805
Fatal Multi-Vehicle Crash Involving Big Rig on I-805
Fatal Multi-Vehicle Crash Involving Big Rig on I-805
Fatal Multi-Vehicle Crash Involving Big Rig on I-805
Fatal Multi-Vehicle Crash Involving Big Rig on I-805
Fatal Multi-Vehicle Collision Involving Big Rig on SR-805
Author: STAFF HERE SAN DIEGO WRITER
The SAN DIEGO STAFF WRITER represents the experienced team at HERESanDiego.com, your go-to source for actionable local news and information in San Diego, San Diego County, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as Comic-Con International, San Diego County Fair, and San Diego Pride Festival. Our coverage extends to key organizations like the San Diego Regional Chamber of Commerce and United Way of San Diego County, plus leading businesses in biotechnology, healthcare, and technology that power the local economy such as Qualcomm, Illumina, and Scripps Health. As part of the broader HERE network, including HEREAnaheim.com, HEREBeverlyHills.com, HERECostaMesa.com, HERECoronado.com, HEREHollywood.com, HEREHuntingtonBeach.com, HERELongBeach.com, HERELosAngeles.com, HEREMissionViejo.com, and HERESantaAna.com, we provide comprehensive, credible insights into California's dynamic landscape.
