WEST HOLLYWOOD — A century-old water pipe burst in West Hollywood early Thursday, unleashing a torrent of water that carved a sinkhole and cracked pavement on Sunset Boulevard. The rupture flooded streets, submerged transit buses, forced road closures across the Sunset Strip, and damaged businesses, while triggering an emergency response from city and utility officials.

The ruptured pipe was a 36-inch riveted steel pipe whose origins predate the 1984 incorporation of West Hollywood as an independent city. Officials do not yet know what caused the pipe to rupture, though emergency crews immediately began working to shut smaller valves and assess the situation. Despite the extensive flooding, no injuries were reported as a result of the pipe burst, and neighborhood residents continue to have clean drinking water, according to authorities.

The flooding caused several major roads to shut down, disrupting traffic throughout the area. Local metro buses were partially submerged in water following the pipe burst, adding to transportation challenges. Dialog Cafe, a business on the affected stretch of Sunset Boulevard, was temporarily closed after sustaining significant damage from the water break. A representative for the cafe said, “We don’t yet know exactly when we’ll be able to reopen.”

West Hollywood Mayor John Heilman confirmed the scope of the incident and sought to reassure residents. “All of our residents to our knowledge are safe,” Heilman said. He added, “We know these road closures and traffic impacts are disruptive, and we appreciate everyone’s patience as crews work to stabilize the area, assess the damage, and begin repairs.”

Los Angeles Department of Water and Power Chief Operating Officer Anselmo Collins explained the nature of such infrastructure failures. “Unfortunately, sometimes there may be parts of the pipeline where you end up with a weak spot and it reveals itself when you have these types of leaks,” Collins said. He noted that water main breaks often occur during overnight hours: “Everybody’s asleep. So consequently normally that’s when you see a water main break take place.” The utility, which serves both Los Angeles and West Hollywood, annually installs and replaces about 45 miles of pipes as part of its ongoing maintenance efforts.

Los Angeles Mayor Karen Bass framed the incident as part of a broader challenge tied to aging public works. “This is one of the challenges when our infrastructure is so old,” Bass said. She pointed to recent planning efforts to address systemic vulnerabilities, stating, “I spent the last couple of years developing a comprehensive infrastructure plan of which we rolled out about two months ago.” Bass emphasized the need for coordinated action, saying, “It is very difficult to repair the infrastructure that impacts the entire city and clearly two cities – West Hollywood and Los Angeles – without a citywide plan.” A measure related to this comprehensive infrastructure plan will be put before voters on the November ballot.

Thousands of West Hollywood residents began cleaning up after the pipe break Thursday morning. Resident Angelo Burlos described the force of the flood: “The water was like a rapid.” Fellow resident Tom Demille reported significant interior damage at his home, saying, “There's about three inches of mud downstairs where I live.”

The pipe failure highlights the risks posed by century-old water infrastructure in densely populated urban areas. With the ruptured pipe dating to before West Hollywood’s 1984 cityhood, the incident underscores the age of critical systems still in active use across Southern California. The event also raises questions about financial protections for property owners, as standard insurance policies may not cover damage from such events.

Rick Dinger of Crescenta Valley Insurance explained the limitations of common coverage. “As far as insurance goes, unfortunately, they're out of luck,” Dinger said, noting that renter’s insurance does not cover this type of damage and that only about 1% of California homeowners carry flood insurance, compared to 10% who have earthquake insurance. He said vehicle owners with comprehensive coverage may be protected: “As long as they've got comprehensive coverage, which is an act of God considered, that would be covered. So they pay their deductible and the insurance carrier picks up the balance.” For property damage, Dinger said the only potential recourse is legal: “Basically, your only option is subrogation, going after if it was some negligence or something that the city did and trying to go that direction.” He added, “It should be a pretty good notice to people that this could happen and you want to have some insurance coverage.”