Overview
- An 18-foot-diameter section of the Los Angeles Effluent Outfall Tunnel gave way about five to six miles from its sole shaft and roughly 400 feet below ground.
- Over 100 Los Angeles Fire Department personnel, including Urban Search and Rescue teams, used a crane-mounted elevator system to hoist the crew to safety in groups.
- Trapped workers climbed over a 12- to 15-foot mound of loose soil to reach colleagues on the far side of the collapse before riding a tunnel vehicle back to the shaft.
- No visible injuries were reported and paramedics evaluated all 31 workers on site following their extraction.
- The LA County Sanitation District has halted work on the $630.5 million wastewater tunnel and opened a formal probe into the structural failure.