E-Scooter Incident in Fullerton, CA, Leaves Two Women Critically Injured

Two women riding electric scooters were critically injured after a collision with a box truck in Fullerton on Saturday evening, September 27, 2025. According to the Fullerton Police Department, officers responded around 7:00 p.m. to the intersection of Association Road and Yorba Linda Boulevard. Preliminary information indicates the women were traveling southbound in the number two lane when a southbound box truck in the same lane struck both riders. First responders located the riders in the roadway with significant life-threatening injuries; both were transported to a local hospital in critical condition. Authorities stated that alcohol and/or drugs do not appear to be factors at this time. The investigation remains ongoing.

While the exact cause has yet to be determined, crashes involving electric scooters and larger vehicles like box trucks can lead to catastrophic injuries, including traumatic brain injuries, fractures, internal bleeding, spinal trauma, and severe lacerations. This incident highlights the heightened vulnerability of scooter riders when sharing lanes with heavier, higher-profile vehicles.

What We Know About the Crash

- Location: Association Road and Yorba Linda Boulevard, Fullerton, CA
- Time: Approximately 7:00 p.m., Saturday, September 27, 2025
- Parties: Two female e-scooter riders and a box truck
- Direction of travel: All southbound in the number two lane
- Injuries: Both scooter riders sustained life-threatening injuries and were transported in critical condition
- Impairment: Alcohol and/or drugs do not appear to be factors, per police
- Status: Investigation ongoing

Potential Factors Under Review in Scooter–Truck Collisions

Though fault determinations are made through formal investigation and evidence, several issues commonly examined in scooter–vehicle collisions include:

- Lane positioning and visibility: Whether riders were within a bike lane, near the curb, or sharing a travel lane; lighting conditions at dusk; visibility of riders and vehicle.
- Speed and following distance: Was the truck following at a safe distance and speed appropriate for conditions?
- Right-of-way and signaling: Lane changes, turns, or merges by either party; compliance with signals and signage.
- Infrastructure: Presence and condition of bike lanes, road markings, and intersection design.
- Vehicle blind spots: Box trucks have significant right-side and rear blind zones; investigators often assess mirror use and driver scanning.
- Distraction: Whether any party was distracted by devices or in-cab systems.
- Mechanical issues: Braking, lighting, and maintenance of the truck and scooters.
- Data sources: Dashcam footage, nearby surveillance video, vehicle event data recorders (EDR), telematics, and scooter app trip logs.