Copyright Information: All images are in the public domain and available for free. If you use this image, credit NOAA/NGDC, E.V. Leyendecker, U.S. Geological Survey. |
This failed column was a part of the collapsed Interstate 5/210 interchange. The interchange was a 7-span, non-prestressed, reinforced concrete box girder structure that completely collapsed in the San Fernando earthquake of 1971. The structure was carried on single column bents. The base of the column pulled out of the 6-foot diameter cast-in-place drilled shaft. At failure some hoops separated and pulled out. Image Credit: E.V. Leyendecker. U.S. Geological Survey February 9, 1971 San Fernando USA earthquake The magnitude 6.7 earthquake killed 66 and caused $0.5-1.0 billion property damage. Event Data:
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