San Bernardino County residents near Chino Hills are being asked to remain alert after a vegetation fire discovered Thursday morning consumed roughly 20 acres and, as of Friday morning, was reported 50% contained.
What happened and where
Firefighters first reported the blaze at 6:25 a.m. on July 16, near Pine Avenue and the Corona Freeway (State Route 91) in the Chino Hills area of San Bernardino County. The incident is being managed under a Unified Command led by the Chino Valley Fire District and Cal Fire San Bernardino Unit.
Containment and response
By the morning update on July 17, crews had established control lines around half of the fire perimeter. Officials say containment percentage reflects the portion of the perimeter that has been surrounded by control lines, not that the fire is extinguished.
- Acres burned: 20 acres (approximate)
- Containment: 50% as of the morning update
- Incident command: Chino Valley Fire District & Cal Fire San Bernardino Unit
- Cause: Under investigation; not yet determined
Officials emphasize that containment figures are updated as crews construct, inspect and reinforce firelines. The percentage indicates how much of the perimeter is believed unlikely to cross control lines, but it does not equate to the fire being out or to guaranteed public safety around the entire incident.
"Containment is part of a larger plan for managing a wildfire," incident updates said in guidance explaining the figure.
Local impacts and what residents should know
At the time of the most recent update there were no published reports of structures threatened or of injuries. No cause has been released, and authorities have not issued evacuation orders related to this fire in Chino Hills or nearby San Bernardino communities.
Residents near the incident and commuters on nearby stretches of the Corona (91) Freeway should expect potential traffic impacts from response activity and smoke. Authorities typically ask the public to keep roads clear for emergency vehicles and to avoid the area while crews work.
| Item | Detail |
|---|---|
| Discovery | 6:25 a.m., July 16 |
| Location | Near Pine Avenue & Corona Freeway, Chino Hills (San Bernardino County) |
| Acres | 20 acres (reported) |
| Containment | 50% (as of morning update July 17) |
| Command | Chino Valley Fire District & Cal Fire San Bernardino Unit |
News Block will continue to monitor official Cal Fire and local fire district updates. Residents should follow Cal Fire San Bernardino Unit and the Chino Valley Fire District for evacuation notices or changes in road access.
