Accident High Severity Resolved

Injury crash — 3 injured, rear-end on SR-4 (MARSH CREEK ROAD)

A high-severity accident was reported on SR-4 (MARSH CREEK ROAD) near Unincorporated on September 12, 2026 at 7:29 AM. 3 parties involved, 3 injuries.

3 injured. Primary factor: VC 22350 UNSAFE SPEED:PREVAIL COND. Near WALNUT BOULEVARD.

Road

SR-4 (MARSH CREEK ROAD)

Area

Unincorporated

Address

Loading…

Started

Sep 12, 12:29 AM

Last Updated

1 month, 2 weeks ago

Sep 12, 12:29 AM

Resolved

Sep 12, 12:29 AM

Coordinates

37.8963, -121.6975

Involved Parties 3 partys

Driver At Fault Female age 77

Vehicle

MERZ SL43

Direction

Speed Limit

45 mph

Movement

Proceeding Straight

Sobriety

Had Not Been Drinking

Driver Female age 48

Vehicle

NISS 9KLB896

Direction

Speed Limit

45 mph

Movement

Stopped

Sobriety

Had Not Been Drinking

Driver Female age 29

Vehicle

KIA FORTE

Direction

Speed Limit

45 mph

Movement

Stopped

Sobriety

Had Not Been Drinking

Injuries 3 persons

Passenger F age 85 · PassengerFrontRight

Possible Injury

Driver F age 77

Possible Injury

Driver F age 29

Possible Injury

Source: ccrs · ID ccrs-5335879 First seen Sep 12, 2026 12:29 AM

← All California Incidents More in Unincorporated More on SR-4 (MARSH CREEK ROAD)