Crash on I-680 S/B to North Main Street of Treat Boulevard at North Main Street, Walnut Creek, California

Wednesday, September 23, 2026 at 4:50 PM

Property damage only2 vehiclesHit and run

From the CHP CCRS, record last updated October 25, 2026. No changes since first published.

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Location: I-680 S/B to North Main Street of Treat Boulevard at North Main Street
City, county: Walnut Creek, Contra Costa County
Collision type: Rear End
Motor vehicle involved with: Other Motor Vehicle
Posted speed limit: 65 mph
Primary collision factor cited: No
Weather: Clear
Light: Daylight
Road surface: No Unusual Conditions
Hit and run: Yes
People involved: 3
Injured: 0
Killed: 0

Damage area not recorded

White Sport Utility Vehicle

Damage area not recorded

Bro Sport Utility Vehicle

Driver, female, 42Restraint: Occupant Lap Shoulder Harness Used. Airbag: Air Bag Not Deployed
Not injured
Passenger, male, under 18Restraint: Child in Vehicle Used. Airbag: Air Bag Not Deployed
Not injured

Violation cited: VC 22106 START/BACKUP VEHICLE:HWYas recorded on the report
Unit 1 contributing factor: ENTERING OR LEAVING RAMPas recorded on the report
Unit 2 contributing factor: ENTERING OR LEAVING RAMPas recorded on the report

A contributing factor or charge recorded by an officer is not a finding of fault or a conviction. We show the record as the state released it.

1 crash recorded on I-680 S/B to North Main Street of Treat Boulevard in Walnut Creek in the last 12 months, 0 with injuries.

Oct 16, 2026, I-680 N/B at N. Main St2 vehiclesProperty damage only
Oct 13, 2026, Interstate 680 Southbound at N. Main Street3 vehiclesProperty damage only
Oct 12, 2026, Treat Boulevard at Oak Road2 vehicles, 1 injuredInjury crash
Oct 10, 2026, I-680 Northbound at Treat Boulevard2 vehiclesProperty damage only
Oct 6, 2026, Wayne Drive at Oak Road2 vehiclesProperty damage only

Source: CHP CCRS
Updates: Changes the state makes to this record are applied here when the source publishes them
First published here: October 25, 2026
Last updated: October 25, 2026, no changes recorded
What is left out: Names, addresses, plates, and license and insurance numbers are not in the public data and never appear here

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