Crews were able to stop water flowing from a large line roughly 12 hours after it broke early Wednesday morning in Mission Hills, flooding residential streets in the San Fernando Valley neighborhood.
The rupture occurred before 4 a.m. in a 72-inch-diameter trunk line, a major artery in the distribution system that delivers water between tanks and reservoirs to smaller water mains, the Los Angeles Department of Water and Power said.
The line had to be shut down slowly and steadily to prevent further damage, but all necessary valves were turned off as of 3:30 p.m., the department said.
While LADWP said that helped pressure return to "near-normal levels," the utility asked some customers to limit their water use over the next two days and turn off sprinklers after recent rains. The area affected is between Brand and Roscoe boulevards to the north and south, and Glenoaks and Sepulveda boulevards to the east and west.
Street traffic on Woodman Avenue has been blocked between Devonshire Street and Filmore/Lassen Street since 10 a.m.
It was not immediately known whether there was any property damage.
Correction: A previous version of this story provided an incorrect location. This post has been updated.