Crash
Diamond Bar Crash on Southbound State Route 57 — Injuries Not Confirmed
By Nationwide Report Staff
Incident record
Incident record
Date
September 2, 2026
Time
5:42 a.m.
Roadway
southbound State Route 57 at the Sunset Crossing Road off-ramp
Location
Diamond Bar, Los Angeles County, CA
State
California
Vehicles
—
Injuries
1 injured
Fatalities
None reported
Report
Report body
A traffic collision was reported early Wednesday on southbound State Route 57 at the Sunset Crossing Road off-ramp in Diamond Bar, according to California Highway Patrol dispatch records. The incident was logged around 5:42 a.m. with injury status listed as unknown.
Dispatch records did not specify how many vehicles were involved, how many people may have been hurt, or what led to the crash.
Helpful links
Helpful links
Related resources
Related resources
Legal context
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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