The frightening partial collapse of an L.A. County sanitation tunnel under construction left 31 workers scrambling to make their way to safety on Wednesday evening. … The accident took place in the Clearwater Project, which is designed to carry treated, cleanwastewater from the Joint Water Pollution Control Plant to the ocean. Prior to the accident, the tunnel was expected to reach Royal Palms Beach by the end of the year, at which point it would be seven miles long. The plant is the largest wastewater treatment plant owned and operated by the L.A. County Sanitation Districts. This is the first major incident that has taken place since construction on the project began in late 2019. Work on the tunnel itself started in 2021. But that work is paused for the foreseeable future, [L.A. County Sanitation Districts chief engineer Robert] Ferrante said on Wednesday night.

Related articles:

• The Mercury News: 31 workers are safe after massive California water tunnel under construction collapses​
• The New York Times: 27 workers make improbable escape from collapsed L.A. tunnel
• The Washington Post: 27 workers rescued after tunnel collapse in Los Angeles