A Shandon vehicle fire sparked a vegetation blaze on Friday afternoon that burned 30 acres and caused traffic backups along Highway 46 East, according to Cal Fire.
The vehicle fire ignited around 11:45 a.m. near Bitterwater Road and Highway 46 East, where it spread into nearby vegetation, according to a Cal Fire SLO tweet.
The wind-driven fire initially burned 4 acres, with the potential for 20 acres.
Cal Fire later dispatched a second alarm and tweeted the fire had scorched 15 acres, with the potential to burn 50 acres.
Fire crews eventually contained the fire at 30 acres, and no structures were threatened.
Crews remained on the scene for several hours to complete mop-up, and they closed one lane on the westbound side of Highway 46 East.
The road reopened about 4 p.m., and the fire was completely contained by about 4:18 p.m., according to Caltrans District 5 and Cal Fire.