An article by the NZ Herald reports that recommendations for slope monitoring and early warning made by a geotechnical consulting firm in a report 2 years before the initial failure were not adopted by Auckland Transport. The Birkenhead landslide initially took out 25 parking spaces in a retail area in October of 2017, and a larger landslide in November of the same year took out a micropile or other drill rig working to stabilize the site. Local officials defended the decision, indicating that they instead opted for regular site visits and visual observation of cracks noted in the report. The initial recommendations by GHD Engineers included the monitoring as a minimum, and also recommended several stabilization options in the range of $500k. The current estimates to repair the landslide are $14M to $24M.
Another El Nino storm just moved through Southern California culminating in significant rainfall on Saturday producing mudslides and debris flows in the area hit by this past September’s Station Fire. More after the break. (Photo from Sacramento Bee, David McNew – Getty Images)
A landslide occured about 9am PT yesterday in a residential neighborhood of La Jolla, just north of San Diego. No injuries have been reported, but estimates are that 2,500 people are without either power or gas because of toppled power lines and ruptured gas lines. The Soledad Mountain Road is currently impassable. I’ll update this post as more information becomes available. In the mean time, check out some video and a location map after the break.