By Crash News Writer 
San Diego, CA (August 29, 2025) – A string of serious crashes during Thursday’s rare summer rain caused major traffic disruptions across San Diego County and left at least one person dead.
According to the California Highway Patrol, the first crash took place shortly before 1:30 p.m. on northbound Interstate 15 near Interstate 8. A semi-truck jackknifed against a concrete barrier, blocking at least one lane and causing backups that stretched toward El Cajon Boulevard.
Just over an hour later, at around 2:45 p.m., an Amazon delivery semi-truck lost control near National City. The vehicle ended up hanging off the northbound Interstate 805 off-ramp at eastbound State Route 54. The driver was pulled from the wreck and transported to UCSD Medical Center with major trauma injuries.
At approximately 3:49 p.m., another crash on Highway 78 in Ramona proved fatal. A vehicle veered 30 feet off the roadway near Weekend Villa Road, killing one man and injuring another. Both directions of State Route 78 were closed during the emergency response.
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PLEASE TAKE NOTICE
This report is based on early updates from law enforcement and local news sources. For more guidance, review our frequently asked questions in California.
- The names of the people involved have not been made public, as authorities work to notify the families.
- Investigations are still ongoing, and additional details may be released in the coming days, including potential contributing factors or charges.
- Drivers in the impacted areas should check with local traffic services for road closures and real-time updates.
For those affected, accident resources in California are available to provide support and information.
The material in this blog is intended for informational use only and does not serve as legal or medical advice. All content reflects public reports at the time of publication. Please see our full disclaimer.
If you or someone you know was injured in a crash, reach out to a trusted California personal injury lawyer as soon as possible to protect your rights.