Crash
Injury Extent Unreported After Crash on Northbound I-680 at Monument Boulevard

Incident record
September 23, 2026
4:55 p.m.
northbound Interstate 680 at the Monument Boulevard off-ramp
Contra Costa County, CA
California
—
1 injured
None reported
Report body
A traffic collision was reported on northbound Interstate 680 at the Monument Boulevard off-ramp in Contra Costa County, according to California Highway Patrol dispatch records. The incident was logged Sept. 23, 2026, at 4:55 p.m., with injury status not confirmed in the dispatch record.
Dispatch information did not specify how many vehicles were involved or what may have caused the crash. No further details were included in the 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.
Recent crashes in Contra Costa County
- Mountain View Crash at Potter Street Brings Ambulance Request
- Danville Crash Near Sycamore Valley Road Off-Ramp Leaves Injury Status Unreported
- Byron Highway Crash in Brentwood — Injury Status Unreported
- Contra Costa County Crash Reported on Westbound I-80 at Pinole Valley Road Off-Ramp
- Contra Costa County Crash Reported Near Willow Pass Road On-Ramp
- Contra Costa County Crash on Pacheco Boulevard Brings Ambulance Request