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Crews Replace Section of Ruptured West Hollywood Trunk as Testing and Repressurization Continue

The temporary repair keeps Sunset Strip closed while disinfecting and regulatory checks proceed and officials warn the break highlights strain on Los Angeles’s aging water network.

Overview

  • A century-old 36-inch trunk line burst early Thursday, sending an estimated 17 million gallons into West Hollywood, creating a sinkhole and flooding garages and streets.
  • Crews cut out about a 25-foot damaged segment and welded in a new replacement section and are now slowly repressurizing the line, disinfecting it with chlorine and running leak and safety tests with no reopening date set.
  • The neighborhood is being served by a much smaller temporary 8-inch feed that has caused low pressure and prompted city officials to ask residents to conserve water.
  • Separate smaller breaks and private-property leaks in Venice and Hollywood over the weekend were reported and mostly repaired, though the string of failures has raised questions about broader system risk.
  • LADWP says roughly 30 percent of mains are more than 80 years old and the Sunset trunk is scheduled for full replacement starting in 2031 as part of a multi-billion dollar capital plan that will take years to complete.