One northbound lane on the 2200 block of the busy street was expected to be closed for several hours as crews replace the 12-inch main that broke just after 7:30 p.m. Wednesday.
"What it did was it split longitudinally about 8 feet. When it split, it put out a lot of water," said Mike Miller with the Los Angeles Department of Water and Power.
The ruptured pipe also flooded a three-story apartment building's underground garage. At least three units suffered minor water damage.
"The crews isolated the water main and have dug out the hole, and at this point, we've got a relief crew coming. The previous crew had been here for nearly 16 hours," Miller said.
Water service had to be interrupted to about 30 residential buildings. Service was restored around 1:30 p.m.
Though the water service interruption and damage is an inconvenience to area residents, they say they're glad they're not dealing with more damage.
The Department of Water and Power says the main likely ruptured because it was so old. The city has about 7,200 miles of pipe, and they experience about two leaks a day.