Shaky situation: Bridge building in an international earthquake zone.

The article focuses on the construction of a ramp and bridge system for the Carroll Canyon Road Bridge in California to withstand earthquakes. Topics include California Department of Transportation's proposal for a wire-faced reinforced soil slope for the ramp, project contractor Diablo Contractors' plan to use on-site river rock and the StrataSlope system, and strength of the geogrid allowing accommodate all requirements of the job.