trickykitty | I wonder

I travel through Irving, TX (look up "Irving earthquakes" if you aren't from the DFW area) to get to Dallas, and I will be doing so twice a day within the next week or two (3 days this week alone). I wonder if the overpass I traverse from 183-E onto 161-N is rated for earthquakes. Or any of the overpasses along 183 (Loop 12 and I-35 interechanges come to mind).

It's central Texas. We don't build or plan for earthquakes.