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Engineers warn coastal landslides, liquefaction and fault crossings threaten Losan corridor reliability

3632363 · May 30, 2025
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

UCLA geotechnical experts told the Senate subcommittee that coastal landslides, soil liquefaction and surface‑fault rupture pose recurring risks to the Losan corridor and urged hazard mapping, instrumentation and preemptive monitoring to reduce surprise service outages.

A University of California, Los Angeles geotechnical specialist told a Senate subcommittee that the Losan rail corridor faces multiple geohazards — coastal landslides, liquefaction in low‑lying soils and fault crossings that can produce surface rupture — and that these hazards are growing in frequency or consequence as climate change increases storm intensity and coastal erosion.

Jonathan Stewart, a civil and environmental engineering professor at UCLA, described the corridor’s vulnerabilities and recommended regional mapping and sensor deployment so agencies can anticipate slope movement and measure ground shaking in…

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