San Diego, December 8, 2025
A tragic multi-vehicle collision involving a big rig occurred early Sunday morning on SR-805 in San Diego, resulting in one death. The incident caused significant traffic disruptions as the transition road connecting SR-805 to SR-15 was closed. The California Highway Patrol is investigating the crash, which unfolded at 2:50 a.m. and led to a SigAlert being issued shortly thereafter. Commuters have been advised to seek alternative routes to avoid delays.
San Diego, CA
A fatal multi-vehicle collision involving a big rig occurred early Sunday morning on State Route 805 (SR-805) in San Diego, resulting in one death and prompting significant traffic disruptions.
Details of the Incident
The crash took place around 2:50 a.m. on December 7, 2025, on the northbound lanes of SR-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 SR-805 to northbound State Route 15. No further details about the incident have been released at this time.
Impact on Traffic
The closure of the transition road caused significant traffic delays in the area. Commuters and travelers were advised to seek alternative routes to avoid the affected sections of the freeway. The CHP is expected to provide updates as the investigation progresses.
Background Information
Multi-vehicle collisions involving big rigs are serious incidents that can lead to significant traffic disruptions and pose risks to public safety. The CHP and other local authorities are actively investigating the cause of this particular crash to determine the factors that contributed to the incident and to implement measures to prevent similar occurrences in the future.
Frequently Asked Questions (FAQ)
What happened in the multi-vehicle collision on SR-805 in San Diego?
The collision involved a big rig and occurred on the northbound lanes of SR-805, south of University Avenue, around 2:50 a.m. on December 7, 2025. The incident resulted in one fatality and led to the closure of the transition road connecting northbound SR-805 to northbound State Route 15.
What is a SigAlert, and why was it issued?
A SigAlert is a traffic advisory issued by the California Highway Patrol to inform the public of significant traffic incidents that may cause substantial delays. In this case, the SigAlert was issued at 3:37 a.m. to alert drivers about the closure of the transition road due to the collision.
How can I avoid the traffic disruptions caused by this incident?
Commuters and travelers are advised to seek alternative routes to avoid the affected sections of SR-805 and the transition road to SR-15. Staying updated with traffic reports and following guidance from local authorities can help in planning your journey.
What is being done to investigate the cause of the collision?
The California Highway Patrol and other local authorities are actively investigating the incident to determine the factors that contributed to the crash. Their findings will inform measures aimed at preventing similar incidents in the future.
Key Features of the Incident
| Feature | Details |
|---|---|
| Location | Northbound lanes of State Route 805 (SR-805), south of University Avenue, San Diego, CA |
| Time of Incident | Approximately 2:50 a.m. on December 7, 2025 |
| Fatalities | One confirmed fatality |
| Traffic Impact | Closure of the transition road connecting northbound SR-805 to northbound State Route 15; significant traffic delays |
| Investigation | Ongoing by the California Highway Patrol and local authorities to determine the cause of the collision |
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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.
