Sunset Strip Turns Into a River

A century-old water pipe turned part of West Hollywood into a lake, exposing how fragile Los Angeles’ basic infrastructure has become.

Story Snapshot

A 36-inch trunk line from 1916 burst, flooding Sunset Boulevard and nearby streets.
Officials admit they do not yet know the exact mechanical cause, but say the system is “extremely old.”
Confusing, fragmented control over pipes and plans leaves residents unsure who is accountable.
The break highlights a wider crisis: aging pipes across Los Angeles are reaching the end of their lives with slow replacement.

A 1916 Pipe Turns Sunset Strip Into a River

Early Thursday morning, a massive water main burst under Sunset Boulevard near Holloway Drive and Palm Avenue, sending thousands of gallons of water rushing down the streets of West Hollywood. The pipe that failed was a **36-inch riveted steel trunk line** installed in 1916, part of the main arteries that move water from reservoirs to local neighborhoods. The break carved a sinkhole, flooded underground garages, damaged cars and pavement, and forced closures on Sunset, Santa Monica, and nearby residential streets for safety.

Los Angeles Department of Water and Power (LADWP) crews shut off water to the damaged line around mid-morning and began pumping out the flooded area so they could even see what broke. Emergency officials said water reached about 9,600 gallons per minute at its peak, turning busy roads into fast-moving streams. Thankfully, no injuries were reported, and almost all homes and businesses kept drinking water service, with only one known customer needing a temporary workaround. But the scene looked less like a city street and more like a disaster movie set.

Officials Blame “Extremely Old” Infrastructure, But Offer Few Answers

City and utility leaders admit they do not yet know the precise mechanical cause of the rupture, even as repair crews dig toward the broken section. Anselmo Collins, the LADWP chief operating officer, confirmed the leak came from a **1916, 36-inch riveted steel pipe** and said age and high nighttime pressure likely played a role, since pressure rises when most people are asleep and water demand is low. He described the system as “extremely old” and noted there can be weak spots that only reveal themselves when a line finally fails.

Los Angeles Mayor Karen Bass stood near the sinkhole and called the disaster “one of the challenges when our infrastructure is so old,” stressing that the pipes in this area are more than 100 years old. Bass also admitted something many residents suspected: until very recently, the city did not have a **comprehensive, citywide infrastructure plan**, meaning repairs and upgrades were handled in a piecemeal way by different councils and agencies. She said a new plan was introduced only two months ago, but there is no clear public timeline yet for replacing pipes like the one that just burst.

Fragmented Responsibility Fuels Public Frustration

In the hours after the break, even officials seemed unsure exactly whose pipe had failed, because Los Angeles, West Hollywood, Beverly Hills, and the Metropolitan Water District all operate overlapping systems in the area. That confusion over jurisdiction drove home a bigger concern shared by many people across the political spectrum: when something goes wrong, no one in government seems clearly in charge. West Hollywood Mayor John Heilman said the city has “no control over LADWP infrastructure,” effectively pushing accountability onto the utility alone. For residents, that sounds a lot like finger-pointing instead of problem-solving.

Many Angelenos already feel that the system favors insiders and “elites” over ordinary people, and this event reinforces that view. Everyday drivers had their cars shoved down the street by floodwater, while their elected leaders talked about plans that still are not fully public and repairs with no firm deadline. Both long-time conservatives and liberals see the same picture here: a giant, century-old pipe was allowed to stay in service until it exploded, even though everyone knew these lines were aging out. That feeds the belief that officials worry more about budgets, careers, and press events than about basic safety and reliability.

A Symptom of a Much Larger Infrastructure Time Bomb

This break was not a freak accident; it fits a long-running pattern in Los Angeles and across California. A Los Angeles Times analysis found about one-fifth of the city’s water pipes were installed before 1931, and these very old lines are responsible for close to half of all leaks in the system. A USC engineering professor recently warned that roughly **20% of Los Angeles’ network is more than 100 years old**, right at the end of its expected life. In past incidents, such as a major Sunset Boulevard break near UCLA, city reports blamed external corrosion of old steel pipes buried in aggressive, wet soil.

Sunset Boulevard in West Hollywood floods after water main break – Los Angeles Times https://t.co/fXWRpl4Rdl

— Hector Becerra (@hbecerraLATimes) July 16, 2026

LADWP manages more than 7,000 miles of mains and trunk lines but historically has replaced only a small fraction each year, even as climate stress, soil corrosion, and age stack up. State and local studies say tens of thousands of miles of pipes across California are beyond repair and will keep failing until they are replaced. Thursday’s “river on Sunset” is what that slow-motion crisis looks like on the surface. It is not about one bad bolt or one unlucky street; it is about a system patched and postponed until it literally breaks open in front of everyone.