The image shows a retrofit seismic support on I 215 in San Bernardino, California near the San Andreas Fault [1]. CalTrans has studied all of the California highway structures and retrofitted the system with earthquake safety features in many locations across the State.
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seismic-support.jpg [2] | 38.44 KB |
Links:
[1] http://geology.com/articles/san-andreas-fault.shtml
[2] http://li326-157.members.linode.com/system/files/seismic-support.jpg