Injury Crash
Contra Costa County Crash on State Route 4 Brings Ambulance Request
Incident record
July 29, 2026
1:44 p.m.
eastbound State Route 4 at the Lone Tree Way off-ramp
Contra Costa County, CA
California
—
1 injured
None reported
Report body
A traffic collision was reported on eastbound State Route 4 at the Lone Tree Way off-ramp in Contra Costa County shortly before 1:44 p.m. on July 29, 2026, according to California Highway Patrol dispatch records. An ambulance was requested to respond, 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 caused the crash.
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
- Contra Costa County Crash Closes In on Carlson Boulevard Off-Ramp; Injuries Not Confirmed
- Westbound SR-4 Crash Near Lone Tree Way Draws Ambulance
- Crash Reported on Eastbound SR4 Near Willow Pass Road
- Injury Extent Unreported in Bay Point Crash at Evora Road, Willow Pass Road
- Crash on Westbound I-80 Near San Pablo Dam Road Leaves Injury Status Unknown
- El Sobrante Crash at Appian Way Brings Ambulance Request