Emergency responders have successfully rescued at least 31 workers trapped after a tunnel collapse in Wilmington, Los Angeles. The incident occurred as part of a major sewer project, leaving multiple workers initially trapped 450 feet underground. Quick action by firefighters ensured that all workers were safely removed from the debris. Earlier, reports indicated that as many as 15 workers had been trapped in a separate incident involving another tunnel collapse in the area. These incidents highlight the ongoing risks associated with large-scale construction projects.