Cal Fire crews were called to a small brush fire along Interstate 15, near Centre City Parkway just after noon Friday.
Just before 5 p.m. Cal Fire crews had the fire 80 percent contained and the fire was burning on three acres.
The forward rate of the flames stopped spreading at five acres, according to the twitter feed of Cal Fire as of 1:20 p.m. There were three structures threatened by the brush fire. At about 1:45 p.m., crews had the fire 50 percent surrounded.
"This is the time of year that we get these small fires, " said Issac Sanchez, a Fire Captain for Cal Fire. "Later in the year they grow a little faster, but right now things are still working in our favor while the grass has died out for the most part."
At its peak, three homes were threatened by the fire, said Fire Captain Sanchez. Two helicopters operated jointly between Cal Fire and the San Diego County Sheriff's Department were used to fight the fire, said Fire Captain Sanchez.
The aircraft included two fixed-wing air tankers and an air tactical supervisor from Ramona.
"As of right now, we're able to keep most of these [fires] small," said Fire Chief Sanchez. "Although it requires an aggressive initial attack and a coordinated effort."
Nine fire engines, four crews, as well as firefighting aircraft are at the scene. California Highway Patrol Officers have closed one lane on southbound I-15. The fire sparked on the right shoulder.
There were fire engines in place to provide structure protection for at least one home in the area.
The fire was also on a hill which always poses an extra hazard to firefighters.
"Anytime you're fighting a fire on a hill that's always going to be dangerous. The rates of spread are always faster, and then there's the trip-and-fall hazard and things like that," said Fire Chief Sanchez.
No one was injured. No word on what may have caused the fire. The cause is still under investigation.
No other information was available.
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