LOS ANGELES – A dramatic rescue operation deep beneath the streets of Los Angeles successfully pulled all 31 trapped construction workers to safety late Wednesday, July 9, 2025, after a partial collapse occurred in a major infrastructure tunnel under construction. The incident unfolded in the Wilmington area, specifically near the 1700 block of South Figueroa Street, triggering a rapid and extensive response from city emergency services.
Initial reports confirmed that 31 individuals working on the subterranean project became isolated approximately six miles from the tunnel’s sole access point when a section gave way. Despite the perilous conditions hundreds of feet underground, the Los Angeles Fire Department (LAFD), including specialized Urban Search and Rescue teams, mobilized swiftly, with over 100 responders converging on the site.
Rapid Response Secures Outcome
The urgency of the situation prompted an immediate and coordinated effort. Fire crews established communication with the trapped workers and devised a strategy for extraction. The rescue proved remarkably efficient, with all 31 workers reached and safely brought out within approximately two hours of the collapse being reported.
The workers, facing the daunting challenge of navigating the compromised tunnel, were able to escape by climbing over a significant obstacle – a pile of dirt estimated to be between 12 and 15 feet high – before being met by rescue personnel.
Remarkably, none of the workers sustained visible injuries in the collapse. However, as a precautionary measure and standard procedure following such incidents, approximately two dozen of the rescued individuals were evaluated by paramedics on site before being released.
Project Context: The Clearwater Initiative
The tunnel where the collapse occurred is a critical component of the Los Angeles County Sanitation District’s ambitious Clearwater Project. This massive $630.5 million undertaking aims to modernize and improve the region’s wastewater infrastructure.
The affected section is known as the Los Angeles Effluent Outfall Tunnel, a significant segment planned to span 7 miles with an 18-foot diameter. The construction work was being conducted at considerable depth, approximately 400 to 450 feet underground, highlighting the complex engineering challenges involved in the project.
The vast scale and depth of the tunnel underscores the inherent risks associated with such deep underground excavation and construction, making the successful rescue of all workers a particularly significant achievement.
Officials Confirm Successful Operation
News of the successful outcome was met with relief across the city and county. Los Angeles Mayor Karen Bass and L.A. County Supervisor Janice Hahn both confirmed that all workers were safely rescued, commending the professionalism and effectiveness of the emergency response teams.
Their statements emphasized the paramount importance placed on worker safety and the relief that a potentially tragic situation was averted due to the swift actions of the LAFD and the resilience of the trapped individuals.
Investigation Underway
The cause of the partial tunnel collapse remains unclear. Authorities and project officials are expected to launch a thorough investigation to determine precisely what led to the structural failure.
The findings of this inquiry will be crucial for understanding the geotechnical conditions, reviewing construction methods, and implementing any necessary measures to prevent similar incidents in the future as the Clearwater Project continues.
Flatiron Dragados is identified as the prime contractor responsible for the construction of this section of the tunnel. Representatives from the company have not yet publicly commented on the incident, but are expected to cooperate fully with the ongoing investigation.
The successful rescue concludes a tense few hours for the workers, their families, and the emergency responders, allowing a moment of relief before the focus shifts to investigating the cause of the collapse and ensuring the safety of future construction activities on the vital infrastructure project.
