| This photo was taken in Kingsbury grade, California, USA. The retained material is decomposed granite. The the thickness of the gabion wall is 2-3ft (0.6-0.9m). You can see that the thickness of the wall at the bottom is bigger, forming a foundation. This is a very important issue to avoid erosion below the wall which again leads to failures, as it happened in the past. References: Information collected during the field trip in the Sierra Nevada, as part of the "Engineering Geology" course curriculum, instructed by Professor N. Sitar, Department of Civil & Environmental Engineering, University of California at Berkeley. |

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