LIVERMORE (CBS SF) — Interstate 580 through the Altamont Pass in Alameda County remained snarled in both directions late Saturday afternoon following a 15-acre grass fire that burned close to the freeway, according to the California Highway Patrol.

Firefighters from the Alameda County Fire Department were dispatched to reports of a grass fire burning alongside the eastbound lanes of I-580 in unincorporated Livermore, just east of the Altamont Pass summit and east of North Flynn Road near Comstock Road.

When fire crews arrived just after 1:35 p.m., about four acres had already burned. Due to high winds and light, flashy fuels, the fire was able to move fast.

Grass Fire Scorches 30 Acres on Altamont

A grass fire burned about 30 acres on the Altamont Pass July 31, 2021

Fire officials said additional crews were dispatched to the scene and forward progression of the flames was stopped at 2:08 p.m.

Two eastbound lanes of I-580 were temporarily closed due to the fire engines parked on the side of the freeway.

There were no reports of any injuries.

The cause of the fire is under investigation.

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