The I-40 crossing over the Mississippi River is a vital structure for the traffic and freight in America. In the early 1990s TDOT partnered with the Arkansas State Highway and Transportation Department to begin the seismic retrofit of the Hernando DeSoto Bridge. The first project began in 2000, and several phases have been completed. The seismic retrofit is designed to protect this bridge and its approaches in the case of an earthquake of up to 7.7 on the Richter Scale.
GeoDesign was retained by the owner to provide technical review of a claim for differing site conditions related to installation and failure of one of the cofferdams.
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