Crash
Westbound Highway 4 Crash Near Willow Pass Road Leaves Injury Status Unconfirmed

Incident record
September 27, 2026
1:40 p.m.
westbound State Route 4 at the Willow Pass Road on-ramp
Contra Costa County, CA
California
—
1 injured
None reported
Report body
A traffic collision was reported on westbound State Route 4 at the Willow Pass Road on-ramp in Contra Costa County shortly before 1:40 p.m. on September 27, 2026, according to California Highway Patrol dispatch records.
Dispatch logged the incident as an unknown-injury collision, meaning the extent or presence of any injuries had not been confirmed at the time of the report. The record did not specify how many vehicles were involved or what may have caused the crash.
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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