Crash
Contra Costa Collision on State Route 4 Leaves Injury Status Unreported
Incident record
August 29, 2026
10:28 a.m.
westbound State Route 4 at the Somersville Road off-ramp
Contra Costa County, CA
California
—
1 injured
None reported
Report body
A traffic collision was reported westbound on State Route 4 at the Somersville Road off-ramp in Contra Costa County at 10:28 a.m. on Aug. 29, 2026, according to California Highway Patrol dispatch records. The dispatch entry listed the injury status as unknown, with no confirmation of severity or how many people may have been hurt.
The number of vehicles involved and what led to the crash were also not part of the dispatch record.
Helpful links
Related resources
California accident information
- Injury statute of limitations
- 2 years (From date of injury (CCP 335.1).)
- Wrongful death statute of limitations
- 2 years (From date of death (CCP 377.60).)
- Fault rule
- California uses pure comparative negligence: partial fault reduces recovery proportionally but does not bar it.
- Citations
- CCP 335.1 (SoL); CCP 377.60 (wrongful death); pure comparative per Li v. Yellow Cab
- Crash report agency
- California Highway Patrol (CHP 190 request) for CHP-investigated crashes; local police/sheriff otherwise.
This information is provided for general educational purposes only and is not legal advice. Consult a licensed attorney in your state for guidance about your specific situation.
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