An eight-inch cast-iron water main gave out under Coldwater Canyon Avenue on Saturday afternoon, sending a rush of water down a Studio City residential block, flooding yards and chewing away at the roadway. The sudden break cut service to dozens of nearby homes and forced crews to shut down lanes while they chased the leak. By Sunday morning, water was back on in the neighborhood and the chaos had been reduced to a neat line of traffic cones.
What officials said
The Los Angeles Department of Water and Power told ABC7 the rupture was first reported around 4 p.m. Saturday near 4283 Coldwater Canyon Ave and involved an eight-inch cast-iron main. Officials estimated about 40 to 60 residents lost water service, and crews closed the southbound lanes of Coldwater Canyon Avenue so they could dig in and start repairs.
Video and crews on the ground
Aerial and cellphone video captured water ripping through front yards and coursing across the street while repair crews tried to isolate the break and keep it away from homes. As reported by CBS Los Angeles, one clip showed an LADWP worker trudging through knee-deep flow as teams assessed how badly the roadway had been undercut. The station also reported that the department initially expected water service to be restored by early Sunday morning, before outlets later confirmed that service had in fact come back on.
Coldwater Canyon's infrastructure context
The Coldwater Canyon corridor has been the focus of pipeline upgrades in recent years, with the city planning major trunk-line work along the avenue to shore up the aging system. According to the LADWP City Trunk Line South Unit 5 Phase 2 fact sheet, upcoming work includes lining and replacing sections of pipe on Coldwater Canyon between Woodbridge Street and Dickens Street, projects meant to reduce future failures like this one. Planning documents note that some of the pipes in the area are decades old and periodically need emergency repairs or full replacement.
Neighbors and next steps
For residents watching the water barrel past their front doors, the whole thing hardly felt like a routine infrastructure issue. One neighbor, James, told ABC7, "It's loud in my house. It sounds like Hurricane Harbor." Video shared with local outlets showed at least one car briefly lifted and nudged by the current, though officials said there were no immediate reports of injuries or property loss.
Crews will now inspect the collapsed section of Coldwater Canyon Avenue before reopening lanes to traffic, and the city will decide what follow-up pavement repairs are needed once they see the full extent of the damage underground.
