Fatal Multi-Vehicle Crash Involving Big Rig on I-805

Scene of a fatal traffic accident involving a big rig on I-805

San Diego, December 9, 2025

A tragic multi-vehicle collision involving a big rig occurred early Sunday morning on northbound Interstate 805 near University Avenue, resulting in a fatality and major traffic disruptions. The California Highway Patrol responded promptly, issuing a SigAlert to close the transition road for investigation. Commuters experienced significant delays, and the CHP is actively investigating the cause of the incident to enhance road safety. The local community is urged to exercise caution near large trucks and support traffic safety initiatives.

San Diego, CA – Fatal Multi-Vehicle Crash Involving Big Rig on I-805

San Diego, CA – A fatal multi-vehicle collision involving a big rig occurred early Sunday morning on northbound Interstate 805 near University Avenue, resulting in significant traffic disruptions.

Crash Details

The incident took place around 2:50 a.m. on December 7, 2025. The California Highway Patrol (CHP) responded promptly, issuing a SigAlert at 3:37 a.m. to close the transition road connecting northbound I-805 to northbound State Route 15. The closure was necessary to facilitate the investigation and clearance of the scene. No further immediate information about the crash was available at the time of reporting.

Traffic Impact

The SigAlert led to significant traffic delays in the area, with commuters advised to seek alternative routes. The CHP worked diligently to reopen the affected lanes as quickly as possible to minimize disruptions.

Background

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. The CHP continues to investigate the cause of this particular crash to determine contributing factors and prevent future incidents.

Safety Reminders

Authorities urge all drivers to exercise caution, especially when traveling near large trucks. Maintaining a safe following distance and staying alert can significantly reduce the risk of accidents.

Ongoing Investigation

The CHP is actively investigating the circumstances surrounding the crash. Updates will be provided as more information becomes available.

Contact Information

For more details or to report information related to the incident, individuals can contact the California Highway Patrol’s San Diego office at 858-293-6000.

Related Incidents

In recent months, San Diego has experienced several significant traffic incidents, including a fatal multi-vehicle collision on State Route 163 in July 2025, which resulted in one death and one injury.

Weather Conditions

On the day of the crash, San Diego experienced mild temperatures, with a high of 20.6°C (69°F) and a low of 7.8°C (46°F). No adverse weather conditions were reported that could have contributed to the accident.

Community Support

The San Diego community is encouraged to support local traffic safety initiatives and stay informed about road conditions to ensure the safety of all road users.

Legal Considerations

Individuals involved in or witnessing traffic accidents are advised to consult with legal professionals to understand their rights and responsibilities.

Public Safety Announcement

Public safety is a shared responsibility. Drivers are reminded to adhere to traffic laws, avoid distractions, and drive defensively to prevent accidents.

Further Information

For the latest updates on this incident and other traffic-related news, residents can visit the California Highway Patrol’s official website or local news outlets.

Community Resources

San Diego residents seeking information on traffic safety programs and resources can contact local community organizations or the San Diego Police Department.

Public Involvement

Community members are encouraged to participate in local traffic safety workshops and seminars to stay informed and contribute to safer roadways.

Conclusion

This tragic incident underscores the importance of road safety and the need for vigilance among all drivers. The CHP continues to investigate the cause of the crash and urges the public to stay informed and exercise caution on the roads.

FAQ

What happened in the San Diego multi-vehicle crash?

A fatal multi-vehicle collision involving a big rig occurred early Sunday morning on northbound Interstate 805 near University Avenue, resulting in significant traffic disruptions.

When did the crash occur?

The incident took place around 2:50 a.m. on December 7, 2025.

What actions did the California Highway Patrol take?

The CHP responded promptly, issuing a SigAlert at 3:37 a.m. to close the transition road connecting northbound I-805 to northbound State Route 15. The closure was necessary to facilitate the investigation and clearance of the scene.

How did the crash affect traffic?

The SigAlert led to significant traffic delays in the area, with commuters advised to seek alternative routes. The CHP worked diligently to reopen the affected lanes as quickly as possible to minimize disruptions.

What is the current status of the investigation?

The CHP is actively investigating the circumstances surrounding the crash. Updates will be provided as more information becomes available.

How can the public assist with the investigation?

For more details or to report information related to the incident, individuals can contact the California Highway Patrol’s San Diego office at 858-293-6000.

What are the weather conditions like in San Diego?

On the day of the crash, San Diego experienced mild temperatures, with a high of 20.6°C (69°F) and a low of 7.8°C (46°F). No adverse weather conditions were reported that could have contributed to the accident.

What are the safety recommendations for drivers?

Authorities urge all drivers to exercise caution, especially when traveling near large trucks. Maintaining a safe following distance and staying alert can significantly reduce the risk of accidents.

What other traffic incidents have occurred in San Diego recently?

In recent months, San Diego has experienced several significant traffic incidents, including a fatal multi-vehicle collision on State Route 163 in July 2025, which resulted in one death and one injury.

How can the community support traffic safety initiatives?

The San Diego community is encouraged to support local traffic safety initiatives and stay informed about road conditions to ensure the safety of all road users.

What legal considerations should individuals be aware of?

Individuals involved in or witnessing traffic accidents are advised to consult with legal professionals to understand their rights and responsibilities.

How can the public stay informed about traffic-related news?

For the latest updates on this incident and other traffic-related news, residents can visit the California Highway Patrol’s official website or local news outlets.

What community resources are available for traffic safety information?

San Diego residents seeking information on traffic safety programs and resources can contact local community organizations or the San Diego Police Department.

How can community members contribute to safer roadways?

Community members are encouraged to participate in local traffic safety workshops and seminars to stay informed and contribute to safer roadways.

Feature Details
Type of Incident Fatal multi-vehicle collision involving a big rig
Date and Time December 7, 2025, at 2:50 a.m.
Location Northbound I-805 near University Avenue
CHP Response Issued SigAlert at 3:37 a.m. for investigation
Traffic Impact Significant delays with alternative routes advised
Investigation Status Ongoing by CHP
Weather Conditions Mild temperatures, no adverse conditions reported

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HERE Resources

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 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

STAFF HERE SAN DIEGO WRITER
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.

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