Some 75 gallons of fuel were spilled on the westbound 101 Freeway when a cement truck crashed Saturday morning, forcing all westbound lanes to close for nearly five hours in Valley Village.
A cement truck flipped on its side around 9:23 a.m., according to the Los Angeles County Fire Department. Fire officials estimated that a "couple gallons" of fuel reached a storm drain before firefighters put up barriers "to contain the spill."
All westbound lanes were closed west of Laurel Canyon Boulevard, according to the California Highway Patrol.
A SigAlert was issued at 9:37 a.m. and was extended twice Saturday. Around 1:30 p.m., two of the lanes were reopened.
The California Highway Patrol said all lanes were reopened early Saturday afternoon at 2:07.
The Los Angeles County Fire Department's HazMat team responded to evaluate the situation.
City News Service contributed to this report.