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Caltrans begins top‑down removal at Topanga landslide, says reopening date still uncertain
Summary
Caltrans engineers described a top‑down removal strategy and 24/7 operations to clear an active translational landslide on State Route 27, with peer review by LA County Public Works and the California Geological Survey; officials said a firm reopening date cannot be given until additional surveys are complete.
Caltrans on Tuesday described a top‑down excavation plan to remove loose material from the Topanga Canyon landslide and said crews are working around the clock to clear debris and protect sensitive habitat.
"We do have a geotechnical report, and the strategy for reopening the roadway is to remove the loose slide materials from the top to the bottom," Caltrans District staff Lauren said, outlining an access‑road approach that began last week so heavy equipment can reach the top of the slide and work down the slope.
Nina Choi, a Caltrans geotechnical presenter, told residents the slide is active and likely translational in character. "What we found was it's an active landslide with rock or debris. There were several boulders that had also fallen ... 6 to 8 feet in diameter," she said,…
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