A broken water main sent 100,000 gallons of water into a residential neighborhood in West Hollywood on Thursday afternoon, officials said.
The 12 inch main burst around 2 p.m. in the 1200 block of Formosa Avenue near Lexington Avenue (map), according to the Los Angeles Department of Water and Power.
The break forced the closure of Formosa Avenue between Fountain Avenue and Santa Monica Boulevard.
That section of road was not expected to reopen until Friday morning.
A DWP field superintendent told KTLA that the flooding affected 50 to 60 customers, but said no one was evacuated.
One of the hardest hit areas was an below ground parking garage.
Residents of the building joined forces to protect their vehicles.
“There were three people luckily… helping out with wooden boards trying to divert the water from going into the garage,” resident Josh Eichenbaur said.
It could take until about 1 a.m. for crews to restore service, the DWP tweeted.
The cause of the break was still unknown, but officials said age could be a factor.
The cast-iron main is about 77 years old, according to a DWP official at the scene.