TRC

White Paper   |   Jul 19th, 2018 I-40 Mississippi River Bridge Seismic Retrofit Project

The I-40 Bridge is only one of two crossings of the Mississippi River in the Memphis area and is a vital link for transportation, commerce and defense. Considering the potential for another major earthquake and closure of the two bridge crossings, the Tennessee Department of Transportation (TDOT) and Arkansas Highway and Transportation Department (AHTD) gave priority status to retrofit the I-40 Bridge and its approaches. The seismic retrofit project will increase the seismic resistance for this designated “lifeline” structure to enhance the long-term safety of the public. Isolation bearings were a key element for a cost effective and structurally safe retrofit design.