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> the concretization and tetrapodization of the shorelines and community centers in the middle of nowhere I couldn't find a definition for "tetrapodization" in

> the concretization and tetrapodization of the shorelines and community centers in the middle of nowhere I couldn't find a definition for "tetrapodization" in an economic or urban planning context (one of the top Google hits is your post), can you please offer a link that describes this effect upon the shorelines and community centers you speak of?

krapp 11y ago
"tetrapodization" probably refers to the large concrete "tetrapods" piled up along Japan's shorelines as a preventative measure against erosion. Google "japan tetrapod' and you can find a lot of references - here is a Pink Tentacle article with a lot of pictures[0], and another article describing them and their history.[1] [0]http://pinktentacle.com/2008/08/photos-tetrapod-beaches-of-japan/ http://pinktentacle.com/2008/08/photos-tetrapod-beaches-of-j... [1]http://www.mikesblender.com/tokyo_concretecoast.php http://www.mikesblender.com/tokyo_concretecoast.php
- yourapostasy 11y ago
  Thank you much, that has got to be it. I found one 2011 estimate that the shoreline tetrapods are $6K USD each, but I didn't find much in a cursory search either for or against the evidence of tetrapods as useful erosion control.
  - GunboatDiplomat 11y ago
    Seems to me they're much the same as the riprap seawalls, jetties, and groynes you'd find down the shore in parts of the US. They're pretty effective, and USACE seems to approve of them being there.
- mc32 11y ago
  Thanks, that's exactly it. Some tetrapods are effective against erosion control. But, just because they are effective does not mean they are needed everywhere nor is it clear we need to protect all places which do suffer erosion. It's a natural process -sometimes we want to curtail it, sometimes not. In Japan, it's almost always unquestionably "a good" specially when considered by the concrete industrial retirement complex.

krapp 11y ago

"tetrapodization" probably refers to the large concrete "tetrapods" piled up along Japan's shorelines as a preventative measure against erosion. Google "japan tetrapod' and you can find a lot of references - here is a Pink Tentacle article with a lot of pictures[0], and another article describing them and their history.[1] [0]http://pinktentacle.com/2008/08/photos-tetrapod-beaches-of-japan/ http://pinktentacle.com/2008/08/photos-tetrapod-beaches-of-j... [1]http://www.mikesblender.com/tokyo_concretecoast.php http://www.mikesblender.com/tokyo_concretecoast.php

yourapostasy 11y ago
Thank you much, that has got to be it. I found one 2011 estimate that the shoreline tetrapods are $6K USD each, but I didn't find much in a cursory search either for or against the evidence of tetrapods as useful erosion control.
- GunboatDiplomat 11y ago
  Seems to me they're much the same as the riprap seawalls, jetties, and groynes you'd find down the shore in parts of the US. They're pretty effective, and USACE seems to approve of them being there.
mc32 11y ago
Thanks, that's exactly it. Some tetrapods are effective against erosion control. But, just because they are effective does not mean they are needed everywhere nor is it clear we need to protect all places which do suffer erosion. It's a natural process -sometimes we want to curtail it, sometimes not. In Japan, it's almost always unquestionably "a good" specially when considered by the concrete industrial retirement complex.