Sunday December 20, 8:53 PM

Sunday December 20, 8:53 PM

  • Crews returned to work at about 7:00 AM Saturday and Sunday, continuing the painstaking process of building a rip rap rock barricade at the base of the sea cliff behind endangered 330 Esplanade Ave. A second crane joined the project Saturday. According to a crew member at the site, the second crane is doing the same basic task of putting rock at the base of the cliff, but is focused just to the south, below 340 Esplanade Ave. Both cranes carefully lift steel boxes of 3 to 4 ton rocks off the street then hoist them over the evacuated 330 building. Crew members again confirmed that these crane operations are the reason that apartment building was “red tagged” as unsafe for human occupancy (not due to a change in the cliff conditions as reported in the media). I’ll have my pictures from the weekend up in the next day or so.
  • Pacifica Riptide, Life on the Edge @ Esplanade: Gravity & Erosion, link to a virtual tour with three views made Friday. Direct link to the VR on Bay Area VR | 360° Virtual Tour Provider at Virtual Tour of Esplanade Avenue Where Apartments are Falling.
  • US Geological Survey archive of the 1997-98 El Niño Coastal Monitoring Program, Esplanade Drive, Pacifica. From that page: “Nine homes have been red-tagged in most critical area of coastal land loss in Central California. The cliffs here have been retreating at an average rate of about 2 feet/year since 1950, but retreated over 30 feet during two weeks in February 1998. Attempts were made in early January to emplace a seawall at the base of the cliffs. Winter storms rolled in and left the machinery stranded. Seven of these 9 homes have now been demolished.”
  • Interesting article on a national aggregation site, Examiner.com by local TV meteorologist Rob Mayeda (KNTV 11), see Crumbling coastline: Pacifica’s problems nothing new to the California coast (or just scroll down the page a bit).
  • Not much of note seemed to make it into the news today… mostly more of the same.

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