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Urban Landslides - An Oakland Case Study

By Andrew Alden, About.com Guide

My local paper noted that a house had been destroyed in a landslide, the latest in a recent series. I went to the scene one day to take a look. The field evidence was suggestive, so when I got home I investigated the historical evidence too. Anyone evaluating a homesite can learn from what I did. Please note that I am not a licensed geologist; not only is my opinion NOT definitive, but I don't even have a firm opinion on exactly how this landslide happened or how the legal liability for it should be apportioned. (I have another disclaimer on the last page.)

Images 1-12 of 12

  1. Key MapOrientation and photo sites
  2. View of the BluffGetting there from Fruitvale Avenue
  3. A Suspicious ParkAn oddly undeveloped park
  4. View from the Bluff TopThe view brings people here
  5. A Ruined HomeA late Deco specimen
  6. A Posted DwellingKeep out
  7. The Main Headscarp, View SouthThe main event
  8. Headscarp Looking NorthTextbook features
  9. Dating an Earlier SlideOld maps show a smoking gun
  10. 1939 Aerial Photo1939 airphoto gives more hints
  11. 1915 Topographic MapClues from a 1915 map
  12. 1897 Topographic MapClues from an 1897 map
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