Crash

Overnight Collision on Route 57 in Diamond Bar Leaves Injury Status Unconfirmed

By Nationwide Report StaffNovember 14, 2026 at 1:22 a.m.

Map showing Diamond Bar, Los Angeles County, CA — Map precision: road

Incident record

Date

November 14, 2026

Time

1:22 a.m.

Roadway

northbound State Route 57 at the Diamond Bar Boulevard off-ramp

Location

Diamond Bar, Los Angeles County, CA

State

California

Vehicles

—

Injuries

1 injured

Fatalities

None reported

Weather

Moderate drizzle · 58°F · 0.03 in precip · 1 mph wind

Report

A traffic collision was reported early Saturday on northbound State Route 57 at the Diamond Bar Boulevard off-ramp in Diamond Bar, according to California Highway Patrol dispatch records. The crash was logged at 1:22 a.m. with injury status not confirmed in the dispatch entry. Light drizzle was falling in the area at the time, per weather data for the location.

Dispatch did not specify how many vehicles were involved, how many people may have been hurt, or what caused the collision.

Source: CHP dispatch records

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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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