Major Industrial Tunnel Collapse in Wilmington, Los Angeles

On the evening of Wednesday, July 9, 2025, a significant industrial tunnel collapse occurred in Wilmington, Los Angeles, trapping approximately 15 to 28 workers underground. The incident, reported around 8:00 p.m. local time, took place at the Los Angeles Effluent Outfall Tunnel, a $630.5 million wastewater management project commissioned by the Los Angeles County Sanitation District. This critical infrastructure project, located near the 1700 block of North Figueroa Street, is designed to repair aging sewage systems and spans seven miles, approximately 18 feet wide and 450 feet below ground. The collapse site is believed to be up to six miles south of the tunnel’s sole access point, complicating rescue efforts.

Los Angeles Fire Department’s Swift Response

The Los Angeles Fire Department (LAFD) has deployed over 100 personnel, including all four of its specialized Urban Search and Rescue (USAR) teams, trained and equipped for confined-space tunnel rescues. Responders are working tirelessly to free the trapped workers, with some reports indicating that as many as 31 workers may have been inside the tunnel at the time of the collapse. By 9:00 p.m., several workers were successfully hoisted to safety using cranes and a large metal cage mechanism, with no injuries confirmed at the time. The operation remains ongoing as crews navigate the challenging conditions, including severed communication lines caused by the collapse.

Mayor Karen Bass and City Mobilization

Los Angeles Mayor Karen Bass has been actively involved, visiting the site to receive briefings on the emergency. In a post on X, she stated, “The City of Los Angeles has mobilized resources to the tunnel collapse in Wilmington. More than 100 LAFD responders have been deployed, including Urban Search and Rescue teams. Thank you to all of those who are acting immediately to respond to this emergency.” The city’s coordinated response underscores the urgency and scale of the operation.

Challenges in the Rescue Operation

The collapse’s location, potentially six miles from the only access point, poses significant logistical challenges. The LAFD has noted that excessive noise from media helicopters has interfered with communication efforts at the site, prompting a request for helicopters to maintain a distance of at least one mile from the intersection of Figueroa Street and Lomita Boulevard. This measure ensures that rescue personnel can communicate effectively both face-to-face and via radio. Additionally, the cause of the collapse remains under investigation, with no official reports yet on the structural or operational factors involved.

The Los Angeles Effluent Outfall Tunnel Project

The Los Angeles Effluent Outfall Tunnel is a critical component of the Los Angeles County Sanitation District’s Clearwater Project, aimed at upgrading wastewater management systems originally built in 1937 and 1958. Managed by contractor Flatiron Dragados, the project was expected to complete its tunneling phase by April 2025, with the entire initiative slated for completion by 2027. The collapse has raised concerns about worker safety and the structural integrity of the tunnel, which is located near the boundary of Wilmington and Harbor City, close to Los Angeles Harbor College and the 110 Freeway.

Ongoing Developments and Community Response

As of early Thursday, July 10, 2025, rescue operations continue, with some sources reporting that all workers may have been safely extracted, though conflicting reports suggest up to 28 workers could still be trapped. The LAFD has requested at least 10 ambulances to be on standby, indicating the potential for medical needs as workers are brought to the surface. Local news outlets, including ABC7 and CBS Los Angeles, have provided live coverage, showing first responders gathered around a wide shaft at the incident site. The community and nation are watching closely, hoping for the safe recovery of all involved.

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