Crash
Diamond Bar Crash on Southbound SR-57 Brings Ambulance Request
Incident record
September 19, 2026
10:17 p.m.
southbound State Route 57 at the Diamond Bar Boulevard off-ramp
Diamond Bar, Los Angeles County, CA
California
—
1 injured
None reported
Report body
A traffic collision was reported late Saturday on southbound State Route 57 at the Diamond Bar Boulevard off-ramp, according to California Highway Patrol dispatch records. The crash was logged at 10:17 p.m. in Diamond Bar, with an ambulance requested to the scene, which typically signals possible injuries, though the extent was not confirmed.
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
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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